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Navegação Livros - Capítulos por autor "GOSWAMI, RAMASIS"
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MUNHOZ JUNIOR, ANTONIO H.; GALHARDO, GUSTAVO F.; ORTEGA, FERNANDO dos S.; LIMA, NELSON B. de
; MORAES, DENISON A.; MIRANDA, LEILA F. de; VALENZUELA-DIAZ, FRANCISCO R..
Alpha-alumina synthesis using gamma-alumina powders.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 441-451,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_44
Abstract:
Alpha-alumina is a ceramic material with applications as a biomaterial in
femoral prostheses and teeth. The study of the influence of the precursor powder on
the microstructure and mechanical properties of the alumina obtained is extremely
important for the use of the same as biomaterials. Other applications of alpha-alumina
industrially are in obtaining parts used at high temperatures and in chemically aggressive
environments. Alpha-alumina can be synthesized from different raw materials
resulting in ceramic products with different microstructures and consequently with
diverse mechanical resistance. The synthesis of alpha-alumina pieces obtained from
gamma-alumina powders was studied in order to verify the mechanical properties of
the sintered material. The addition of graphene oxide in the gamma-alumina powder
was also studied. To evaluate the mechanical strength of the obtained alpha-alumina
specimens and to correlate the mechanical resistance with the precursor used in
alpha-alumina synthesis it was used three -point bend strength testing.
Palavras-Chave:
aluminium oxides;
aluminium compounds;
graphene;
oxides
MUNHOZ JUNIOR, ANTONIO H.; GALHARDO, GUSTAVO F.; ORTEGA, FERNANDO dos S.; LIMA, NELSON B. de; MORAES, DENISON A.; MIRANDA, LEILA F. de; VALENZUELA-DIAZ, FRANCISCO R.
Alpha-alumina synthesis using gamma-alumina powders.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 441-451.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_44.
Disponível em: http://repositorio.ipen.br/handle/123456789/29857. Acesso em: $DATA.
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MONTEIRO, ALEX S.
; BARREIRA, DAILI A.S.
; SILVA, JAQUELINE S.
; OLIVEIRA, RENE R.
; VALENZUELA-DIAZ, FRANCISCO R.; MOURA, ESPERIDIANA A.B.
.
An investigation of mechanical and thermal properties of polypropylene reinforced with different clays.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 453-463,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_45
Abstract:
Nowadays, environmental awareness and an increasing concern with the
greenhouse effect have increased the interest in composite materials containing at
least one of the components from natural origin. Natural clays seem to be a good
alternative because they are environmentally acceptable, naturally abundant minerals,
and due to their ability to intercalate and exfoliate in the polymer matrix led to an
improvement in mechanical, thermal and barrier properties, compared to the neat
polymer. This work presents an investigation of the effects of incorporation of two
different clays on mechanical and thermal properties of polypropylene (PP) matrix.
PP with 1.5–3.0 wt% of the Cloisite® (commercial clay), and light green clay (noncommercial
Brazilian clay), was prepared by melt extrusion process. The neat PP
and its nanocomposites were characterized by mechanical tests, SEM, DSC, TGA
and XRD analyses. In addition, clay characterization by XRD has also been carried
out.
Palavras-Chave:
polypropylene;
clays;
tensile properties;
thermal gravimetric analysis
MONTEIRO, ALEX S.; BARREIRA, DAILI A.S.; SILVA, JAQUELINE S.; OLIVEIRA, RENE R.; VALENZUELA-DIAZ, FRANCISCO R.; MOURA, ESPERIDIANA A.B.
An investigation of mechanical and thermal properties of polypropylene reinforced with different clays.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 453-463.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_45.
Disponível em: http://repositorio.ipen.br/handle/123456789/29845. Acesso em: $DATA.
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MUNHOZ JUNIOR, ANTONIO H.; PACHECO, CAROLINE V.; MELO, HENRIQUE T.T.S.; PERES, RENATO M.; SILVA, LEONARDO G. de A. e
; MIRANDA, LEILA F. de; ROMERO FILHO, MARCOS.
Characterization of a composite of high-impact polystyrene, pseudoboehmite and graphene oxide.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 511-522,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_51
Abstract:
The application of a composite material of pseudoboehmite, polystyrene
and graphene oxide was studied. The present work is the synthesis and characterization
of high-impact polystyrene (HIPS) nanocomposite, with pseudoboehmite
(PSB) and graphene oxide. Pseudoboehmite particles with nanometric dimensions
were obtained by sol-gel process. The composites were characterized by mechanical
tests (tensile strength, flexural strength, Izod Impact, Shore D Hardness), thermal
(Flow index, temperature of thermal deflection under load-HDT, Vicat softening
temperature, differential tests thermal analyses and thermogravimetric analysis) and
morphologically by Scanning Electron Microscopy (SEM). The results obtained
were compared with HIPS matrix properties, without PSB and graphene oxide addition.
From the thermal analyzes, composite samples showed higher decomposition
temperatures compared to pure high-impact polystyrene especially in the thermogravimetric
analysis results, showing a considerable increase in the temperature at
which material decomposition begins (322 °C for pure high-impact polystyrene and
380 °C for the composite).
Palavras-Chave:
composite materials;
polystyrene;
graphene;
oxides;
nanocomposites;
aluminium compounds
MUNHOZ JUNIOR, ANTONIO H.; PACHECO, CAROLINE V.; MELO, HENRIQUE T.T.S.; PERES, RENATO M.; SILVA, LEONARDO G. de A. e; MIRANDA, LEILA F. de; ROMERO FILHO, MARCOS.
Characterization of a composite of high-impact polystyrene, pseudoboehmite and graphene oxide.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 511-522.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_51.
Disponível em: http://repositorio.ipen.br/handle/123456789/29858. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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MIRANDA, LEILA F. de; MUNHOZ JUNIOR, ANTONIO H.; MASSON, TEREZINHA J.; SILVA, LEONARDO G. de A. e
; FRIEHE, KARL.
Characterization of antistatic packaging based on PET/rGO.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 523-534,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_52
Abstract:
Package for electronic components is one that protects an electronic or
electrical device against electrostatic discharge. Traditionally, antistatic packages
are produced with polystyrene (PS) or polypropylene (PP) filled with carbon black.
Recently, studies have been carried out successfully for the application of polyethylene
terephthalate (PET) filled with carbon black. This work aimed to obtain and
characterize nanocomposites based on PET filled with reduced graphene oxide (rGO)
and compare its physicochemical properties with PET filled with carbon black and
PP filled with carbon black used in anti-static packaging. PET compounds containing
0.1; 0.3; 0.5 and 0.7wt% reduced graphene oxide were obtained by the modified
Hummers process from the graphite and reduced with hydrazine. The thermomechanical,
electrical and morphological properties of the obtained compounds were
determined. The results showed that the addition of reduced graphene oxide to PET
causes an increase in the melt flow index, also increase the tensile strength and electrical
conductivity. The addition of reduced graphene oxide promotes the decrease
in the hardness and thermal resistance of the obtained nanocomposites. Nanocomposites
based on PET containing 0.5wt% and 0.7wt% reduced graphene oxide can
be used in the handling, transport and storage of electronic components since their
mechanical, thermal and resistivity properties are satisfactory for this purpose.
Palavras-Chave:
nanocomposites;
polyethylene terephthalate;
graphene;
oxides;
packaging
MIRANDA, LEILA F. de; MUNHOZ JUNIOR, ANTONIO H.; MASSON, TEREZINHA J.; SILVA, LEONARDO G. de A. e; FRIEHE, KARL.
Characterization of antistatic packaging based on PET/rGO.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 523-534.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_52.
Disponível em: http://repositorio.ipen.br/handle/123456789/29846. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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FRANCISCO, DANAE L.
; PAIVA, LUCILENE B. de; ALDEIA, WAGNER; LUGAO, ADEMAR B.
; MOURA, ESPERIDIANA A.B.
.
Characterization of non-covalently functionalized halloysite.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); FIRRAO, DONATO (Ed.); BROWN, ANDREW (Ed.); BAI, CHENGUANG (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); GOSWAMI, RAMASIS (Ed.); KIM, JEONGGUK (Ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 317-323,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_34
Abstract:
The inorganic nanotube halloysite (HNT) is a promising type of natural occurring filler for polymers. Its characteristics, such as high aspect ratio (10–50), small size, and high strength (elastic modulus—140 GPa) suggest that HNTs have a potential use in high-performance polymer nanocomposites. Compared to other nanoclays and nanosilica the relatively low content of hydroxyl groups on their surfaces makes HNTs relatively hydrophobic, although, sometimes, this is not sufficient for guaranty a good interfacial adhesion in composite systems. Further hydrophobic treatment is required to improve HNTs compatibility with polymer matrixes, maximizing interfacial interactions. In the present study, different percentages of EPB (2,2-(1,2-ethene diyldi-4,1-phenylene) bisbenzoxazole) was used to perform a non-covalent functionalization of halloysite, based on electron transfer interactions. The functionalization is characterized by specific surface area (BET), thermogravimetric analysis (TG) and water/toluene extraction experiment.
Palavras-Chave:
nanotubes;
silicate minerals;
clays;
benzoxazoles;
thermal gravimetric analysis;
toluene;
polymers
FRANCISCO, DANAE L.; PAIVA, LUCILENE B. de; ALDEIA, WAGNER; LUGAO, ADEMAR B.; MOURA, ESPERIDIANA A.B.
Characterization of non-covalently functionalized halloysite.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); BROWN, ANDREW (ed.); BAI, CHENGUANG (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 317-323.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_34.
Disponível em: http://repositorio.ipen.br/handle/123456789/28878. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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MONTEIRO, ALEX S.
; BARREIRA, DAILI A.S.
; BARTOLOMEI, SUELLEN S.
; OLIVEIRA, RENE R.
; MOURA, ESPERIDIANA A.B. de
.
Comparative study of the use of rice husk ashes and graphite as fillers in polypropylene matrix composites.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 561-570,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_56
Abstract:
In recent years, carbonaceous materials have been widely studied for polymer
composite applications due to its capability to improve the engineering properties
of the polymeric matrix. Among various carbonaceous fillers, carbon nanotube,
graphene, and graphite promise to be a suitable reinforcement of polymers. Rice
husk ash (RHA), a large residue rich in carbon and silica produced by the burning
of rice husk offers also an immense potential as a carbonaceous filler for polymer
composites on account of its lowcost, lowdensity, high strength and elastic modulus,
no health risks, and renewability. This work aims at studying the effects of RHA and
graphite as fillers in polypropylene (PP) matrix composites. The composites PP/RHA
and PP/graphite were produced by melting extrusion process. The materials obtained
were subjected to mechanical tests, XRD, TG, and FEG-SEM analyses. Comparison
studies between neat PP properties and its composites were carried out.
Palavras-Chave:
matrix materials;
polypropylene;
mechanical properties;
thermodynamic properties;
carbonaceous materials
MONTEIRO, ALEX S.; BARREIRA, DAILI A.S.; BARTOLOMEI, SUELLEN S.; OLIVEIRA, RENE R.; MOURA, ESPERIDIANA A.B. de.
Comparative study of the use of rice husk ashes and graphite as fillers in polypropylene matrix composites.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 561-570.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_56.
Disponível em: http://repositorio.ipen.br/handle/123456789/29847. Acesso em: $DATA.
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OLIANI, WASHINGTON L.
; PARRA, DUCLERC F.
; LIMA, LUIS F.C.P.
; OTAGURO, HARUMI; FERRETO, HELIO F.R.
; LUGAO, ADEMAR B.
.
Contribution to the β relaxation study of the HDPE, LDPE and LLDPE.
In: IKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); CARPENTER, JOHN S. (Ed.); LI, JIAN (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); FIRRAO, DONATO (Ed.); ZHANG, MINGMING (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); BAI, CHENGUANG (Ed.); KALAY, YUNUS E. (Ed.); GOSWAMI, RAMASIS (Ed.); KIM, JEONGGUK (Ed.).
Characterization of Minerals, Metals, and Materials.
Gewerbestrasse, Switzerland: Springer International Publishing AG.,
2017.
p. 617-626,
(The Minerals, Metals & Materials Series).
Abstract:
The activation of three polyethylenes, the low density, the high density and the linear low density polyethylene, was determined by means of dynamic mechanical analysis (DMA). Storage modulus and tan δ spectra were obtained as a function of the temperature from −60 to 50 °C with a heating rate of 2° min−1 at frequencies of 1, 2 and 5 Hz and measurement strain amplitude of 10−5. In the tan δ spectra, a small peak in the β region of the three polyethylenes was found and substantiated by subtracting the growing exponential background. This procedure was based on a model that associates the dislocation motion on metals under cyclic stress to vibrating strings and considering the same for the polymeric chains. For the determination of the activation energy we have utilized the frequency versus the reciprocal of the absolute temperature peak of the tan δ. The values obtained for the three polyethylenes, the low density, the high density and the linear low density were, 362 ± 12, 266 ± 9 and 197 ± 6 kJ mol−1, respectively, which were compared with those presented in the literature.
Palavras-Chave:
polyethylenes;
relaxation;
activation energy;
density
OLIANI, WASHINGTON L.; PARRA, DUCLERC F.; LIMA, LUIS F.C.P.; OTAGURO, HARUMI; FERRETO, HELIO F.R.; LUGAO, ADEMAR B.
Contribution to the β relaxation study of the HDPE, LDPE and LLDPE.
In:
IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); LI, JIAN (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); ZHANG, MINGMING (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); BAI, CHENGUANG (ed.); KALAY, YUNUS E. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.).
Characterization of Minerals, Metals, and Materials.
Gewerbestrasse, Switzerland: Springer International Publishing AG.,
2017.
p. 617-626.
(The Minerals, Metals & Materials Series).
Disponível em: http://repositorio.ipen.br/handle/123456789/27926. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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ARANTES, MARIANA M.
; SANTANA, JULYANA
; VALENZUELA-DIAZ, F.R.; RANGARI, VIJAY K.; GUVEN, OLGUN; MOURA, ESPERIDIANA A.B.
.
Development and characterization of recycled-HDPE/EVA foam reinforced with babassu coconut epicarp fiber residues.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); FIRRAO, DONATO (Ed.); BROWN, ANDREW (Ed.); BAI, CHENGUANG (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); GOSWAMI, RAMASIS (Ed.); KIM, JEONGGUK (Ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 497-506,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_52
Abstract:
Nowadays, the development of polymeric materials reinforced with residues of vegetal fibers is becoming popular for application in different segments, from the automotive to the civil construction and furniture industry. Vegetal fiber residues may be used as reinforcement of the recycled polymer materials, for instance, to produce foams to packaging or to thermal and acoustic isolation for green building application. This work is focused on the development and characterization of recycled-HDPE/EVA foam reinforced with fiber residues from babassu coconut epicarp. Firstly, composites based on recycled-HDPE/EVA blend reinforced with babassu coconut fiber were obtained by melting extrusion process. The composites were then extruded in a special single screw for foaming. The foam samples were submitted to mechanical tests, density measurement, DSC, TG, and FE-SEM analysis.
Palavras-Chave:
coconut palms;
coconuts;
fibers;
polyethylenes;
polymerization;
polyvinyls;
recycling
ARANTES, MARIANA M.; SANTANA, JULYANA; VALENZUELA-DIAZ, F.R.; RANGARI, VIJAY K.; GUVEN, OLGUN; MOURA, ESPERIDIANA A.B.
Development and characterization of recycled-HDPE/EVA foam reinforced with babassu coconut epicarp fiber residues.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); BROWN, ANDREW (ed.); BAI, CHENGUANG (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 497-506.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_52.
Disponível em: http://repositorio.ipen.br/handle/123456789/28879. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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REIS, PEDRO R.S.
; SANTANA, JULYANA G.
; OLIVEIRA, RENE R.
; RANGARI, VIJAYA K.; LOURENÇO, FELIPE R.; MOURA, ESPERIDIANA A.B.
.
Development of biocomposite materials from biodegradable polymer and bio-hydroxyapatite derived from eggshells for biomedical applications.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 571-581,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_57
Abstract:
Nowadays, significant advances have been made in the development of
biodegradable polymeric materials for biomedical applications. This study aims to
prepare and characterize composite materials based on PLA/PBAT, a biodegradable
polymer blend, reinforced with bio-hydroxyapatite (bio-HAp). First, bio-HAp was
obtained from eggshell residues by the wet precipitation method. PLA/PBAT blend
with 1.5 wt% of bio-HAp was prepared by melt extrusion and injection molding
process. Part of composite samples was irradiated with gamma radiation dose of
25 kGy, at room temperature and presence of air. The effects of the bio-HAp addition
into the biodegradable blend were investigated by mechanical tests, XRD, DSC, FESEM,
and cytotoxicity “in vitro” analysis and the correlation between the properties
was discussed. In addition, the microbiological tests were carried out at irradiated and
non-irradiated composite samples in order to evaluate the efficiency of the radiation
dose of 25 kGy at composite materials sterilization.
Palavras-Chave:
apatites;
polyurethanes;
polymers;
biodegradation;
antimitotic drugs;
microorganisms;
materials testing
REIS, PEDRO R.S.; SANTANA, JULYANA G.; OLIVEIRA, RENE R.; RANGARI, VIJAYA K.; LOURENÇO, FELIPE R.; MOURA, ESPERIDIANA A.B.
Development of biocomposite materials from biodegradable polymer and bio-hydroxyapatite derived from eggshells for biomedical applications.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 571-581.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_57.
Disponível em: http://repositorio.ipen.br/handle/123456789/29848. Acesso em: $DATA.
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-
ROMANO, REBECA da S.G.
; OLIANI, WASHINGTON L.
; KUMAR, VIJAYA R.; PARRA, DUCLERC F.
; LUGAO, ADEMAR B.
.
Differences in properties of pro-degradant added PP and gamma-irradiated PP under environmental aging.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 591-603,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_59
Abstract:
Polypropylene (PP) is used for different sectors of the industry and in
consequence produces a large amount of waste discarded at landfills causing serious
environmental impacts. Controlled degradation of PP can be achieved by exposing
the polymers to defined parameters, such as absorbed radiation dose, weather,
oxygen, etc. The aim of this study was to compare two methods of accelerated
degradation: gamma irradiation of PP 20 kGy and the incorporation of the commercial
pro-degradant d2w® (1 wt%) in PP. Dumbbell samples were manufactured
by the injection process and exposed to the environment aging for 90 days. Structural
changes in PP macromolecules are created upon exposure to ionizing radiation
such as main chain scission, crosslinking and peroxidation (in presence of air). Differential
scanning calorimetry (DSC), thermogravimetric analysis (TG), scanning
electron microscopy (SEM), energy-dispersive spectroscopy (EDX), X-ray fluorescence,
Fourier-transformed infrared spectroscopy (FTIR) and mechanical tests characterized
the samples. The samples previously irradiated, PP 20 kGy, after natural
aging showed higher oxidation and presence of surface cracks than the PP d2w®.
They also showed presence of carbonyl groups and decrease of melting temperature
corroborating with oxo-degradation.
Palavras-Chave:
polypropylene;
ionizing radiations;
gamma radiation;
residues;
wastes;
environment;
aging;
calorimetry
ROMANO, REBECA da S.G.; OLIANI, WASHINGTON L.; KUMAR, VIJAYA R.; PARRA, DUCLERC F.; LUGAO, ADEMAR B.
Differences in properties of pro-degradant added PP and gamma-irradiated PP under environmental aging.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 591-603.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_59.
Disponível em: http://repositorio.ipen.br/handle/123456789/29849. Acesso em: $DATA.
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-
SALES, J.N.
; POVEDA, P.N.S.
; ORTIZ, A.
; VALENZUELA-DIAZ, F.R.; SILVA, L.A.
.
Effect study of the incorporation of the Green Lake clay in the polypropylene homopolymer properties.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 629-636,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_62
Abstract:
The advancement of technology has demanded the development of materials
with increasingly lighter and more resistant properties. The development of
nanocomposites first started in the mid-80s and contributed for obtaining materials
with excellent properties. In this work, Green Lake clay was organophilized
and incorporated into a commercial homopolymer polypropylene. The efficiency
of organophilization was confirmed by water swelling analysis and, later, by Xray
diffraction (XRD) analysis. Composites at 0.5, 1.0 and 2% by weight of
clay/polypropylene were prepared by double screw extrusion. The properties of the
composite were evaluated by means of Charpy impact resistance, tensile strength at
rupture, thermogravimetric analysis (TGA). Crystallinity index was determined by
differential scanning calorimetry (DSC). The organophilization processwas efficient,
the thermogravimetric analysis showed that there was no decrease in the thermal stability
of the composites when compared to pure polypropylene, and the results of
the Charpy impact resistance were equivalent when compared to the commercial
nucleant composites.
Palavras-Chave:
clays;
crystal structure;
charpy test;
polypropylene;
polymers
SALES, J.N.; POVEDA, P.N.S.; ORTIZ, A.; VALENZUELA-DIAZ, F.R.; SILVA, L.A.
Effect study of the incorporation of the Green Lake clay in the polypropylene homopolymer properties.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 629-636.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_62.
Disponível em: http://repositorio.ipen.br/handle/123456789/29850. Acesso em: $DATA.
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-
MESQUITA, ANDERSON dos S.
; CAVALCANTE, IAN T.
; SILVA, LEONARDO G. de A. e
.
Electron beam effect on the thermal and mechanical properties analysis of DGEBA/EPDM compound.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 637-646,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_63
Abstract:
The aim of this work is to obtain, characterize and irradiate the
DGEBA/EPDM compound and compare their thermal and mechanical properties
with a non-irradiated DGEBA/EPDM compound. The DGEBA/EPDM compound
may be used to cover other materials such as polymers and protect them against high
thermal conditions and mechanical effort. The compounds have 0.0, 25.0 and 50.0
wt% of DGEBA. In addition, the compounds were irradiated at 30 and 60 kGy at
a dose rate 22.41 kGy/s. The thermal properties (DMA and TGA) and mechanical
analysis (tensile strength and elongation at break) were performed. In conclusion,
the irradiated DGEBA/EPDM compounds may be used for several applications due
to the improvement in their mechanical and thermal properties. Their properties are
satisfactory for application that requires stronger material.
Palavras-Chave:
epoxides;
ethylene propylene diene polymers;
thermodynamic properties;
electron beams
MESQUITA, ANDERSON dos S.; CAVALCANTE, IAN T.; SILVA, LEONARDO G. de A. e.
Electron beam effect on the thermal and mechanical properties analysis of DGEBA/EPDM compound.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 637-646.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_63.
Disponível em: http://repositorio.ipen.br/handle/123456789/29851. Acesso em: $DATA.
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-
MARCHINI, LEONARDO G.
; PARRA, DUCLERC F.
; RANGARI, VIJAYA K..
Incorporation of silver nanoparticles in zinc oxide matrix in Polyester Thermoplastic Elastomer (TPE-E) aiming antibacterial activity.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 79-88,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_9
Abstract:
The purpose of present study is to evaluate the antimicrobial potential of
Thermoplastic Polyester Elastomer (TPE-E) incorporated with zinc oxide added with
colloidal dispersion of metallic silver adsorbed on pyrogenic silica (AgNPs_ZnO).
A combination of single screw extruder and hot press technique was used to fabricate
these polymer nanocomposite films. These polymer nanocomposite films were prepared
by mechanical mixing of 1% (w/w) of oil, anti-oxidant 0.05% (w/w), TPE-E
granules 0.5% (w/w) and followed by single screw extruder to produce the pellets.
As-prepared pellets were further melted for films in hot press technique. Antimicrobial
activity was evaluated according to Japan Industrial Standard—JIS Z 2801
in TPE-E compounds against Staphylococcus aureus (S. aureus) and Escherichia
coli (E. coli). TPE-E samples containing additives 0.05 and 0.5% AgNPs_ZnO presented
75 and93%bactericidal reduction for Gram-negative bacteria Escherichia coli
(E. coli) and 76 and 92% bactericidal activity reduction for Gram-positive bacteria
Staphylococcus aureus (S. aureus), respectively.
Palavras-Chave:
silver;
nanoparticles;
antimicrobial agents;
thermoplastics;
polyesters;
elastomers;
zinc oxides
MARCHINI, LEONARDO G.; PARRA, DUCLERC F.; RANGARI, VIJAYA K.
Incorporation of silver nanoparticles in zinc oxide matrix in Polyester Thermoplastic Elastomer (TPE-E) aiming antibacterial activity.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 79-88.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_9.
Disponível em: http://repositorio.ipen.br/handle/123456789/29840. Acesso em: $DATA.
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SANTANA, JULYANA
; SEIXAS, MARCUS V. de S.
; RANGARI, VIJAY; VALENZUELA-DIAZ, FRANCISCO; WIEBECK, HELIO; MOURA, ESPERIDIANA
.
Influence of electron-beam irradiation on the properties of LDPE/EDPM blend foams.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); FIRRAO, DONATO (Ed.); BROWN, ANDREW (Ed.); BAI, CHENGUANG (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); GOSWAMI, RAMASIS (Ed.); KIM, JEONGGUK (Ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 547-555,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_58
Abstract:
Closed-cell polyethylene (PE) foams have been extensively used in many applications such as packaging, transportation, sports, construction, and agriculture because of their variety of properties including light weight, chemical resistance, thermal and electrical insulation. The objective of this study is to evaluate the influence of electron-beam irradiation on the properties of LDPE/EPDM blend foams. The LDPE/EPDM blend (80/20 wt%) were prepared by melt extrusion, using a twin-screw extruder machine. The foam structure of LDPE/EPDM blends was obtained by melt extrusion process, using a special single screw for foaming with 1.5 wt% of foaming agent as blowing agent. The foam samples were irradiated by electron-beam at radiation dose of 25, 50, 75 and 100 kGy and submitted to heating in an oven at 100 °C. The specimen tests samples of irradiated and non-irradiated foams were submitted to mechanical tests, DSC, TG analysis and density measurement.
Palavras-Chave:
polyethylenes;
ethylene propylene diene polymers;
density;
irradiation;
tensile properties
SANTANA, JULYANA; SEIXAS, MARCUS V. de S.; RANGARI, VIJAY; VALENZUELA-DIAZ, FRANCISCO; WIEBECK, HELIO; MOURA, ESPERIDIANA.
Influence of electron-beam irradiation on the properties of LDPE/EDPM blend foams.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); BROWN, ANDREW (ed.); BAI, CHENGUANG (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 547-555.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_58.
Disponível em: http://repositorio.ipen.br/handle/123456789/28880. Acesso em: $DATA.
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FRANCISCO, DANAE L.
; PAIVA, LUCILENE B. de; ALDEIA, WAGNER; LUGAO, ADEMAR B.
; MOURA, ESPERIDIANA A.B.
.
Investigation on mechanical behaviors of polyamide 11 reinforced with halloysite nanotubes.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 693-701,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_69
Abstract:
The inorganic halloysite nanotubes (HNTs) are a promising type of natural
occurring filler for polymers. Its characteristics such as high aspect ratio (10–50),
small size, and high strength (elastic modulus—140 GPa) suggest that HNTs have
a potential use in high-performance polymer nanocomposites. Compared to other
nanoclays and nanosilica, the relatively low content of hydroxyl groups on their
surfaces makes HNTs relatively hydrophobic, although, sometimes, this is not sufficient
for guaranty a good interfacial adhesion in composite systems. In the present
study, halloysite nanotubes were incorporated in a polyamide 11 (PA11) matrix by
melt extrusion, using a twin-screw extruder and injection molding machine. The
neat PA11 and PA11/HNT nanocomposites were characterized by mechanical tests
(tensile, flexural and impact tests), and the correlation between properties were discussed.
Palavras-Chave:
polyamides;
nanostructures;
nanotubes;
nanocomposites;
mechanical properties;
thermoplastics;
inorganic polymers;
tensile properties
FRANCISCO, DANAE L.; PAIVA, LUCILENE B. de; ALDEIA, WAGNER; LUGAO, ADEMAR B.; MOURA, ESPERIDIANA A.B.
Investigation on mechanical behaviors of polyamide 11 reinforced with halloysite nanotubes.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 693-701.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_69.
Disponível em: http://repositorio.ipen.br/handle/123456789/29852. Acesso em: $DATA.
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-
OLIANI, WASHINGTON L.
; PARRA, DUCLERC F.
; RANGARI, VIJAYA K.; LINCOPAN, NILTON; LUGAO, ADEMAR B.
.
Irradiation influence on the properties of HMS-Polypropylene Clay/AgNPs nanocomposites.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); FIRRAO, DONATO (Ed.); BROWN, ANDREW (Ed.); BAI, CHENGUANG (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); GOSWAMI, RAMASIS (Ed.); KIM, JEONGGUK (Ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 583-595,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_62
Abstract:
Due to its versatility and low cost, polypropylene (PP) is one of the most widely used polymers in the world, consequently in research and development of new products. The polypropylene modified was prepared by gamma irradiation in acetylene at 12.5 kGy dose, technical polymer also known as high-melt-strength-polypropylene (HMSPP). It was mixed with montmorillonite (MMT) clay and silver nanoparticles (AgNPs) for bactericide activity. HMS-Polypropylene-clay -silver nanocomposites were manufactured using twin-screw extruders. Those materials were prepared by a melt mixing process via twin screw extrusion with a wide range of processing conditions. The polypropylene nanocomposites (PPNC) surfaces were exposed to gamma-radiation (60Co) source in presence of nitrogen as inert atmosphere at 1; 3; 5; 10; 20 and 50 kGy doses for modified the surfaces in order to enhance biocide activity. The samples surfaces were characterized by Differential Scanning Calorimetry (DSC), X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDX) and evaluated by determination of bactericide effects. The results indicate the formation of structures predominantly intercalated of HMSPP nanocomposite. Contact tests for antibacterial activity of the hybrid polymer were applied against Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive) bacteria. The irradiations on the samples surfaces were insufficient to promote activity on contact biocide tests.
Palavras-Chave:
nanocomposites;
polypropylene;
irradiation;
gamma radiation;
silver;
clays;
germicides;
montmorillonite
OLIANI, WASHINGTON L.; PARRA, DUCLERC F.; RANGARI, VIJAYA K.; LINCOPAN, NILTON; LUGAO, ADEMAR B.
Irradiation influence on the properties of HMS-Polypropylene Clay/AgNPs nanocomposites.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); BROWN, ANDREW (ed.); BAI, CHENGUANG (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 583-595.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_62.
Disponível em: http://repositorio.ipen.br/handle/123456789/28874. Acesso em: $DATA.
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MESQUITA, ANDERSON dos S.
; SILVA, LEONARDO G. de A. e
; MIRANDA, LEILA F. de.
Mechanical, thermal and electrical properties of polymer (Ethylene Terephthalate—PET) filled with carbon black.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); FIRRAO, DONATO (Ed.); BROWN, ANDREW (Ed.); BAI, CHENGUANG (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); GOSWAMI, RAMASIS (Ed.); KIM, JEONGGUK (Ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 605-614,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_64
Abstract:
This work seeks to understand if PET compounds with carbon black can be uses to replace polypropylene and polystyrene for anti-static packaging materials. PET compounds were fabricated containing 10.0; 11.0; 12.0 and 15.0 weight % of carbon black with a particle size 325 mesh. We determined the thermomechanical properties (Dynamic Mechanical Analysis—DMA, Tensile Properties, Fracture Toughness, and Hardness) and Electrical properties of the compounds. In conclusion the results show the compound based on PET filled with 15.0% carbon black might be used in the handling, transportation and storage of electronic components because their mechanical properties, thermal and resistivity are satisfactory for this purpose.
Palavras-Chave:
polymers;
ethylene;
polyethylene terephthalate;
carbon black;
thermal conductivity
MESQUITA, ANDERSON dos S.; SILVA, LEONARDO G. de A. e; MIRANDA, LEILA F. de.
Mechanical, thermal and electrical properties of polymer (Ethylene Terephthalate—PET) filled with carbon black.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); BROWN, ANDREW (ed.); BAI, CHENGUANG (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.).
Characterization of Minerals, Metals, and Materials. TMS.
Cham, CZ, Switzerland: Springer International Publishing AG,
2018.
p. 605-614.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_64.
Disponível em: http://repositorio.ipen.br/handle/123456789/28875. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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SANTANA, JULYANA G.
; ORTIZ, ANGEL
; OLIVEIRA, RENE R.
; RANGARI, VIJAY K.; GUVEN, OLGUN; MOURA, ESPERIDIANA A.B.
.
Mechanical, thermal, morphology and barrier properties of flexible film based on polyethylene-ethylene vinyl alcohol blend reinforced with graphene oxide.
In: IKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); CARPENTER, JOHN S. (Ed.); LI, JIAN (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); FIRRAO, DONATO (Ed.); ZHANG, MINGMING (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); BAI, CHENGUANG (Ed.); KALAY, YUNUS E. (Ed.); GOSWAMI, RAMASIS (Ed.); KIM, JEONGGUK (Ed.).
Characterization of Minerals, Metals, and Materials.
Gewerbestrasse, Switzerland: Springer International Publishing AG.,
2017.
p. 49-57,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-51382-9_7
Abstract:
Ethylene-vinyl alcohol (EVOH) copolymers are widely used in the food packaging industry as gas barrier properties to oxygen, organic solvents, and food aromas. EVOH is very sensitive to moisture and its gas barrier ability deteriorates in high relative humidity conditions. This work aims to prepare flexible films based on melt-blending high density polyethylene (HDPE) and ethylene-vinyl alcohol (HDPE/EVOH/EVA blend) reinforced with graphene oxide (GO). The HDPE/EVOH/EVA/GO flexible films were prepared by twin-screw extrusion and blown film extrusion processing. The flexible films samples were characterized by tensile tests, TG, DSC and FE-SEM analysis and the correlation between properties was discussed. In addition, the oxygen permeability tests were performed at 23 °C, 0 and 90% relative humidity using an OX-TRAN (MOCON Inc.).
Palavras-Chave:
packaging;
food industry;
alcohols;
ethylene;
copolymers
SANTANA, JULYANA G.; ORTIZ, ANGEL; OLIVEIRA, RENE R.; RANGARI, VIJAY K.; GUVEN, OLGUN; MOURA, ESPERIDIANA A.B.
Mechanical, thermal, morphology and barrier properties of flexible film based on polyethylene-ethylene vinyl alcohol blend reinforced with graphene oxide.
In:
IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); LI, JIAN (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); ZHANG, MINGMING (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); BAI, CHENGUANG (ed.); KALAY, YUNUS E. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.).
Characterization of Minerals, Metals, and Materials.
Gewerbestrasse, Switzerland: Springer International Publishing AG.,
2017.
p. 49-57.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-51382-9_7.
Disponível em: http://repositorio.ipen.br/handle/123456789/29215. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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BRIGGS, EXAMPLE; MOURA, ESPERIDIANA A.B. de
; FURUSAWA, HELIO A.
; COTRIM, MARYCEL E.B.
; OGUZIE, EMEKA E.; LUGAO, ADEMAR B.
.
Microplastics: a novel method for surfacewater sampling and sample extraction in Elechi Creek, Rivers State, Nigeria.
In: LI, BOWEN (Ed.); LI, JIAN (Ed.); IKHMAYIES, SHADIA (Ed.); ZHANG, MINGMING (Ed.); KALAY, YUNUS E. (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); SPENA, PASQUALE R. (Ed.); GOSWAMI, RAMASIS (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 269-281,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_27
Abstract:
The geometric increase in the production and exploitation of plastics
worldwide has several advantages as well as disadvantages due to the mismanagement
of plastic waste. These waste products find its way into the aquatic body.
Microplastics are plastic particles with its longest diameter less than or equal to
5 mm. Their microscopic nature, irregular color and morphology have made their
extraction from the buoyant organic materials problematic. This work documents for
the first time, the sampling and sample extraction of microplastics in Nigeria. An optimized
sampling and sample extraction protocol for surfacewaterwas developed. The
extraction protocolwas developed in a laboratory study using a simulated sample that
mimics the environmental sample (microplastics+organic materials). A micronized
LDPE (<300 μm) was used for the study and yielded a percentage recovery rate
of 82%. The digested microplastics which were subjected to SEM analysis showed
a slight change in the surface morphology. Thereafter, the environmental sample
was extracted using the developed laboratory protocol and a high positive result was
achieved. This protocol improved NOAA’s method of extraction by excluding the
use of microscope for the final extraction, which, of course, will yield a biased result.
This was achieved by the addition of ethanol to the final solution.
Palavras-Chave:
plastics;
pollutants;
water pollution;
microstructure;
sampling;
africa;
rivers;
separation processes;
densimeters;
plankton;
nanoparticles;
wet oxidation processes;
peroxides;
sample preparation;
ethanol;
scanning electron microscopy
BRIGGS, EXAMPLE; MOURA, ESPERIDIANA A.B. de; FURUSAWA, HELIO A.; COTRIM, MARYCEL E.B.; OGUZIE, EMEKA E.; LUGAO, ADEMAR B.
Microplastics: a novel method for surfacewater sampling and sample extraction in Elechi Creek, Rivers State, Nigeria.
In:
LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); SPENA, PASQUALE R. (ed.); GOSWAMI, RAMASIS (ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 269-281.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_27.
Disponível em: http://repositorio.ipen.br/handle/123456789/29842. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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COIADO, RENATA D.S.
; LAZO, GISELE D.
; OLIVEIRA, RENE R.
; RODRIGUES, RITA C.L.B.; MOURA, ESPERIDIANA A.B.
.
Polymer blend based on recycled polyethylene and ethylene vinyl acetate copolymers reinforced with natural fibers from agricultural wastes.
In: IKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); CARPENTER, JOHN S. (Ed.); LI, JIAN (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); FIRRAO, DONATO (Ed.); ZHANG, MINGMING (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); BAI, CHENGUANG (Ed.); KALAY, YUNUS E. (Ed.); GOSWAMI, RAMASIS (Ed.); KIM, JEONGGUK (Ed.).
Characterization of Minerals, Metals, and Materials.
Gewerbestrasse, Switzerland: Springer International Publishing AG.,
2017.
p. 689-697,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-51382-9_76
Abstract:
Agricultural residues, which are produced with large quantities annually throughout the world, may be used as reinforcement plastic to replace the wood and produce particleboard for application in the development of low cost construction elements and reduced environmental impact. The main aims of this study was to investigate the effects of agricultural wastes and glass residues addition on the properties of recycled-HDPE/EVA blend for use in particleboard manufacture. The recycled-HDPE/EVA blend reinforced with corncob fiber (15 wt%), coffee parchment (15 wt%) and glass residues (1 wt%) were processed by melt extrusion, using a twin screw extruder and injection molding machine to obtain specimen test samples. The samples were characterized by mechanical test, XRD, TG, DSC, and FE-SEM analysis to understand the nature of interaction between the fillers reinforcement and recycled-HDPE/EVA blend matrix and their properties were discussed.
Palavras-Chave:
polymers;
plastics;
agricultural wastes;
glass;
recycling;
waste processing;
mechanical tests
COIADO, RENATA D.S.; LAZO, GISELE D.; OLIVEIRA, RENE R.; RODRIGUES, RITA C.L.B.; MOURA, ESPERIDIANA A.B.
Polymer blend based on recycled polyethylene and ethylene vinyl acetate copolymers reinforced with natural fibers from agricultural wastes.
In:
IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); LI, JIAN (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); ZHANG, MINGMING (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); BAI, CHENGUANG (ed.); KALAY, YUNUS E. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.).
Characterization of Minerals, Metals, and Materials.
Gewerbestrasse, Switzerland: Springer International Publishing AG.,
2017.
p. 689-697.
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-51382-9_76.
Disponível em: http://repositorio.ipen.br/handle/123456789/29220. Acesso em: $DATA.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.
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, por esse motivo, utilize os termos de busca de assunto em inglês; isto não exclui a busca livre por palavras, apenas o resultado pode não ser tão relevante ou pertinente.
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O gerenciamento do Repositório está a cargo da Biblioteca do IPEN. Constam neste RI, até o presente momento 20.950 itens que tanto podem ser artigos de periódicos ou de eventos nacionais e internacionais, dissertações e teses, livros, capítulo de livros e relatórios técnicos. Para participar do RI-IPEN é necessário que pelo menos um dos autores tenha vínculo acadêmico ou funcional com o Instituto. Nesta primeira etapa de funcionamento do RI, a coleta das publicações é realizada periodicamente pela equipe da Biblioteca do IPEN, extraindo os dados das bases internacionais tais como a Web of Science, Scopus, INIS, SciElo além de verificar o Currículo Lattes. O RI-IPEN apresenta também um aspecto inovador no seu funcionamento. Por meio de metadados específicos ele está vinculado ao sistema de gerenciamento das atividades do Plano Diretor anual do IPEN (SIGEPI). Com o objetivo de fornecer dados numéricos para a elaboração dos indicadores da Produção Cientifica Institucional, disponibiliza uma tabela estatística registrando em tempo real a inserção de novos itens. Foi criado um metadado que contém um número único para cada integrante da comunidade científica do IPEN. Esse metadado se transformou em um filtro que ao ser acionado apresenta todos os trabalhos de um determinado autor independente das variáveis na forma de citação do seu nome.
A elaboração do projeto do RI do IPEN foi iniciado em novembro de 2013, colocado em operação interna em julho de 2014 e disponibilizado na Internet em junho de 2015. Utiliza o software livre Dspace, desenvolvido pelo Massachusetts Institute of Technology (MIT). Para descrição dos metadados adota o padrão Dublin Core. É compatível com o Protocolo de Arquivos Abertos (OAI) permitindo interoperabilidade com repositórios de âmbito nacional e internacional.
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clique aqui.
O Repositório Digital do IPEN é um equipamento institucional de acesso aberto, criado com o objetivo de reunir, preservar, disponibilizar e conferir maior visibilidade à Produção Científica publicada pelo Instituto, desde sua criação em 1956.
Operando, inicialmente como uma base de dados referencial o Repositório foi disponibilizado na atual plataforma, em junho de 2015. No Repositório está disponível o acesso ao conteúdo digital de artigos de periódicos, eventos, nacionais e internacionais, livros, capítulos, dissertações, teses e relatórios técnicos.
A elaboração do projeto do RI do IPEN foi iniciado em novembro de 2013, colocado em operação interna em julho de 2014 e disponibilizado na Internet em junho de 2015. Utiliza o software livre Dspace, desenvolvido pelo Massachusetts Institute of Technology (MIT). Para descrição dos metadados adota o padrão Dublin Core. É compatível com o Protocolo de Arquivos Abertos (OAI) permitindo interoperabilidade com repositórios de âmbito nacional e internacional.
O gerenciamento do Repositório está a cargo da Biblioteca do IPEN. Constam neste RI, até o presente momento 20.950 itens que tanto podem ser artigos de periódicos ou de eventos nacionais e internacionais, dissertações e teses, livros, capítulo de livros e relatórios técnicos. Para participar do RI-IPEN é necessário que pelo menos um dos autores tenha vínculo acadêmico ou funcional com o Instituto. Nesta primeira etapa de funcionamento do RI, a coleta das publicações é realizada periodicamente pela equipe da Biblioteca do IPEN, extraindo os dados das bases internacionais tais como a Web of Science, Scopus, INIS, SciElo além de verificar o Currículo Lattes. O RI-IPEN apresenta também um aspecto inovador no seu funcionamento. Por meio de metadados específicos ele está vinculado ao sistema de gerenciamento das atividades do Plano Diretor anual do IPEN (SIGEPI). Com o objetivo de fornecer dados numéricos para a elaboração dos indicadores da Produção Cientifica Institucional, disponibiliza uma tabela estatística registrando em tempo real a inserção de novos itens. Foi criado um metadado que contém um número único para cada integrante da comunidade científica do IPEN. Esse metadado se transformou em um filtro que ao ser acionado apresenta todos os trabalhos de um determinado autor independente das variáveis na forma de citação do seu nome.