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Navegação por autor "BAI, CHENGUANG"
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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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POVEDA, PATRICIA N.S.
; VIANA, HAMILTON M.; ANDRADE e SILVA, LEONARDO G. de
.
Behavior of linear low density polyethylene films under UV ageing for agricultural application.
In: CARPENTER, JOHN S. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO, JUAN P. (Ed.); HWANG, JIANN-YANG (Ed.); LI, BOWEN (Ed.); LI, JIAN (Ed.); MONTEIRO, SERGIO N. (Ed.); PENG, ZHIWEI (Ed.); ZHANG, MINGMING (Ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 144th . ANNUAL MEETING & EXIBITION,
March 15-19, 2015,
Orlando, Florida.
Proceedings...
New York: Wiley , 2015,
2015.
p. 253-258.
DOI:
10.1002/9781119093404.ch31
Palavras-Chave:
polyethylenes;
aging;
films;
films;
infrared spectra;
ultraviolet radiation;
polymers;
additives;
sampling;
agriculture
POVEDA, PATRICIA N.S.; VIANA, HAMILTON M.; ANDRADE e SILVA, LEONARDO G. de.
Behavior of linear low density polyethylene films under UV ageing for agricultural application.
In:
CARPENTER, JOHN S. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO, JUAN P. (ed.); HWANG, JIANN-YANG (ed.); LI, BOWEN (ed.); LI, JIAN (ed.); MONTEIRO, SERGIO N. (ed.); PENG, ZHIWEI (ed.); ZHANG, MINGMING (ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 144th . ANNUAL MEETING & EXIBITION,
March 15-19, 2015,
Orlando, Florida.
Proceedings...
New York: Wiley , 2015,
2015.
p. 253-258.
DOI:
10.1002/9781119093404.ch31.
Disponível em: http://repositorio.ipen.br/handle/123456789/25645. Acesso em: $DATA.
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LIMA, ROBERTA A.
; OLIVEIRA, RENE R.
; WATAYA, CELIO H.
; MOURA, ESPERIDIANA A.B.
.
Biodegradable starch/copolyesters film reinforced with silica nanoparticles: preparation and characterization.
In: CARPENTER, JOHN S. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO, JUAN P. (Ed.); HWANG, JIANN-YANG (Ed.); LKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); LI, JIAN (Ed.); MONTEIRO, SERGIO N. (Ed.); PENG, ZHIWEI (Ed.); ZHANG, MINGMING (Ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 144th . ANNUAL MEETING & EXIBITION,
March 15-19, 2015,
Orlando, Florida.
Proceedings...
New York: Wiley , 2015,
2015.
p. 687-693.
DOI:
10.1002/9781119093404.ch87
Palavras-Chave:
nanostructures;
composite materials;
polymers;
biodegradation;
mechanical properties;
calorimetry
LIMA, ROBERTA A.; OLIVEIRA, RENE R.; WATAYA, CELIO H.; MOURA, ESPERIDIANA A.B.
Biodegradable starch/copolyesters film reinforced with silica nanoparticles: preparation and characterization.
In:
CARPENTER, JOHN S. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO, JUAN P. (ed.); HWANG, JIANN-YANG (ed.); LKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); LI, JIAN (ed.); MONTEIRO, SERGIO N. (ed.); PENG, ZHIWEI (ed.); ZHANG, MINGMING (ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 144th . ANNUAL MEETING & EXIBITION,
March 15-19, 2015,
Orlando, Florida.
Proceedings...
New York: Wiley , 2015,
2015.
p. 687-693.
DOI:
10.1002/9781119093404.ch87.
Disponível em: http://repositorio.ipen.br/handle/123456789/23770. 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.
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MUNHOZ JUNIOR, ANTONIO H.; ANDRADE e SILVA, LEONARDO G. de
; MIRANDA, LEILA F. de; ANDRADES, RAPHAEL C..
Characterization of gamma-alumina obtained from aged pseudoboehmites.
In: IKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); LI, JIAN (Ed.); FIRRAO, DONATO (Ed.); ZHANG, MINGMING (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO, JUAN P. (Ed.); BAI, CHENGUANG (Ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 145th . ANNUAL MEETING & EXIBITION,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
New York: Wiley , 2016,
2016.
p. 779-785.
Palavras-Chave:
ceramics;
adsorption;
catalysis;
nanoparticles;
synthesis;
sol-gel process;
x-ray diffraction;
scanning electron microscopy;
differential thermal analysis;
thermogravimetric analysis;
adsorption isotherms
MUNHOZ JUNIOR, ANTONIO H.; ANDRADE e SILVA, LEONARDO G. de; MIRANDA, LEILA F. de; ANDRADES, RAPHAEL C.
Characterization of gamma-alumina obtained from aged pseudoboehmites.
In:
IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); LI, JIAN (ed.); FIRRAO, DONATO (ed.); ZHANG, MINGMING (ed.); PENG, ZHIWEI (ed.); ESCOBEDO, JUAN P. (ed.); BAI, CHENGUANG (ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 145th . ANNUAL MEETING & EXIBITION,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
New York: Wiley , 2016,
2016.
p. 779-785.
Disponível em: http://repositorio.ipen.br/handle/123456789/26206. Acesso em: $DATA.
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SOUZA, CLECIA M.
; SILVA, LEONARDO G.
.
Characterization of irradiated and non-irradiated rubber from automotive scrap tires.
In: IKHMAYIES, SHADIA J. (Ed.); LI, BOWEN (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); LI, JIAN (Ed.); FIRRAO, DONATO (Ed.); ZHANG, MINGMING (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); BAI, CHENGUANG (Ed.) TMS ANNUAL MEETING & EXHIBITION, 145th; CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
Hoboken, New Jersey: John Wiley & Sons, Inc.,
2016.
p. 713-720.
DOI:
10.1007/978-3-319-48210-1_90
Abstract:
The aim of this work was to characterize the samples of irradiated and non-irradiated rubber from automotive scrap tires. Rubber samples from scrap tires were irradiated at irradiation doses of 200, 400 and 600kGy in an electron beam accelerator. Subsequently, both the irradiated and non - irradiated samples werec haracterized by thermogravimetry (TG), differential scanning calorimetry (DSC), tensile strength mechanical test, and Fourier transform infrared (FTIR) spectrophotometry.
Palavras-Chave:
rubbers;
irradiation;
scrap;
tires;
acceleration;
recycling
SOUZA, CLECIA M.; SILVA, LEONARDO G.
Characterization of irradiated and non-irradiated rubber from automotive scrap tires.
In:
IKHMAYIES, SHADIA J. (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); LI, JIAN (ed.); FIRRAO, DONATO (ed.); ZHANG, MINGMING (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); BAI, CHENGUANG (ed.) TMS ANNUAL MEETING & EXHIBITION, 145th; CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
Hoboken, New Jersey: John Wiley & Sons, Inc.,
2016.
p. 713-720.
DOI:
10.1007/978-3-319-48210-1_90.
Disponível em: http://repositorio.ipen.br/handle/123456789/27234. Acesso em: $DATA.
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CARDOSO, E.C.L.
; SCAGLIUSI, S.R.
; LUGAO, A.B.
.
Characterization of mechanical properties of PP/HMSPP blends with natural and synthetic polymers subjected to gamma-irradiation.
In: CARPENTER, JOHN S. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO, JUAN P. (Ed.); HWANG, JIANN-YANG (Ed.); IKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); LI, JIAN (Ed.); MONTEIRO, SERGIO N. (Ed.); PENG, ZHIWEI (Ed.); ZHANG, MINGMING (Ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 144th . ANNUAL MEETING & EXIBITION,
March 15-19, 2015,
Orlando, Florida.
Proceedings...
New York: Wiley , 2015,
2015.
p. 629-636.
Palavras-Chave:
gamma radiation;
bagasse;
mechanical properties;
polypropylene;
synthetic materials;
polymers
CARDOSO, E.C.L.; SCAGLIUSI, S.R.; LUGAO, A.B.
Characterization of mechanical properties of PP/HMSPP blends with natural and synthetic polymers subjected to gamma-irradiation.
In:
CARPENTER, JOHN S. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO, JUAN P. (ed.); HWANG, JIANN-YANG (ed.); IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); LI, JIAN (ed.); MONTEIRO, SERGIO N. (ed.); PENG, ZHIWEI (ed.); ZHANG, MINGMING (ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 144th . ANNUAL MEETING & EXIBITION,
March 15-19, 2015,
Orlando, Florida.
Proceedings...
New York: Wiley , 2015,
2015.
p. 629-636.
Disponível em: http://repositorio.ipen.br/handle/123456789/25643. Acesso em: $DATA.
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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.
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PAIVA, DOUGLAS A.; OLIVEIRA, RENE R.
; MAIA, WILSON da S.; AUAD, MARIA L.; RANGARI, VIJAYA K.; MOURA, ESPERIDIANA A.B.
.
Comparative study of the effects of cellulose nanowhiskers and microcrystalline cellulose addition as reinforcement in flexible films based on biopolymer blends.
In: IKHMAYIES, SHADIA J. (Ed.); LI, BOWEN (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); LI, JIAN (Ed.); FIRRAO, DONATO (Ed.); ZHANG, MINGMING (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); BAI, CHENGUANG (Ed.) TMS ANNUAL MEETING & EXHIBITION, 145th; CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
Hoboken, New Jersey: John Wiley & Sons, Inc.,
2016.
p. 409-416.
DOI:
10.1007/978-3-319-48210-1_51
Abstract:
The objective of this study is to compare the effects of the addition of cellulose nanowhiskers and microcrystalline cellulose on properties of flexible films based on biodegradablepolymer blends. Composite films containing 1 wt. % of microcrystalline cellulose and 1-2 wt.% of cellulose nanowhiskers were prepared by melt extrusion, using a twin screw extruder machine and blown extrusion process. The effects of the addition of cellulose nanowhiskers and microcrystalline cellulose on mechanical and thermal properties of biocomposite films were investigated by tensile tests, XRD, TG, DSC and FE-SEM analysis and the correlation between properties was discussed.
Palavras-Chave:
biodegradation;
polymers;
films;
mechanical properties;
whiskers;
nanotechnology
PAIVA, DOUGLAS A.; OLIVEIRA, RENE R.; MAIA, WILSON da S.; AUAD, MARIA L.; RANGARI, VIJAYA K.; MOURA, ESPERIDIANA A.B.
Comparative study of the effects of cellulose nanowhiskers and microcrystalline cellulose addition as reinforcement in flexible films based on biopolymer blends.
In:
IKHMAYIES, SHADIA J. (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); LI, JIAN (ed.); FIRRAO, DONATO (ed.); ZHANG, MINGMING (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); BAI, CHENGUANG (ed.) TMS ANNUAL MEETING & EXHIBITION, 145th; CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
Hoboken, New Jersey: John Wiley & Sons, Inc.,
2016.
p. 409-416.
DOI:
10.1007/978-3-319-48210-1_51.
Disponível em: http://repositorio.ipen.br/handle/123456789/27230. Acesso em: $DATA.
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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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CAMPOS, REJANE D.
; HOSUR, MAHESH; JEELANI, SHAIK; DIAZ, FRANCISCO R.V.; MOURA, ESPERIDIANA A.B.
; SEO, EMILIA S.M.
.
Comparison between bio-composite based green HDPE/Brasil nut shell fiber (BNSF) treated and non treated by electron-beam radiation.
In: CARPENTER, JOHN S. (Ed.); BAI, CHENGUANG (Ed.); HWANG, JIANN-YANG (Ed.); LKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); MONTEIRO, SERGIO N. (Ed.); PENG, ZHIWEI (Ed.); ZHANG, MINGMING (Ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 143rd . ANNUAL MEETING & EXIBITION,
February 16-20, 2014,
San Diego, California.
Proceedings...
New York: Wiley , 2014,
2014.
p. 475-482.
DOI:
10.1002/9781118888056.ch55
Palavras-Chave:
composite materials;
mechanical properties;
morphology;
brazil;
nuts;
fibers;
electron beams
CAMPOS, REJANE D.; HOSUR, MAHESH; JEELANI, SHAIK; DIAZ, FRANCISCO R.V.; MOURA, ESPERIDIANA A.B.; SEO, EMILIA S.M.
Comparison between bio-composite based green HDPE/Brasil nut shell fiber (BNSF) treated and non treated by electron-beam radiation.
In:
CARPENTER, JOHN S. (ed.); BAI, CHENGUANG (ed.); HWANG, JIANN-YANG (ed.); LKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); MONTEIRO, SERGIO N. (ed.); PENG, ZHIWEI (ed.); ZHANG, MINGMING (ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 143rd . ANNUAL MEETING & EXIBITION,
February 16-20, 2014,
San Diego, California.
Proceedings...
New York: Wiley , 2014,
2014.
p. 475-482.
DOI:
10.1002/9781118888056.ch55.
Disponível em: http://repositorio.ipen.br/handle/123456789/23767. 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.
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KOMATSU, LUIZ G.H.
; PARRA, DUCLERC F.
; OLIANI, WASHINGTON L.
; LUGAO, ADEMAR B.
; RANGARI, VIJAYA K..
Degradation study of High Melt Sterngt Polypropylene/Clay nanocomposites in environmental and accelerated conditions.
In: CARPENTER, JOHN S. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO, JUAN P. (Ed.); HWANG, JIANN-YANG (Ed.); IKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); LI, JIAN (Ed.); MONTEIRO, SERGIO N. (Ed.); PENG, ZHIWEI (Ed.); ZHANG, MINGMING (Ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 145th . ANNUAL MEETING & EXIBITION,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
New York: Wiley , 2016,
2016.
p. 61-67.
DOI:
10.1007/978-3-319-48254-5_8
Palavras-Chave:
decomposition;
polypropylene;
clays;
nanocomposites;
environment;
aging;
gamma radiation;
thermal degradation
KOMATSU, LUIZ G.H.; PARRA, DUCLERC F.; OLIANI, WASHINGTON L.; LUGAO, ADEMAR B.; RANGARI, VIJAYA K.
Degradation study of High Melt Sterngt Polypropylene/Clay nanocomposites in environmental and accelerated conditions.
In:
CARPENTER, JOHN S. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO, JUAN P. (ed.); HWANG, JIANN-YANG (ed.); IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); LI, JIAN (ed.); MONTEIRO, SERGIO N. (ed.); PENG, ZHIWEI (ed.); ZHANG, MINGMING (ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 145th . ANNUAL MEETING & EXIBITION,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
New York: Wiley , 2016,
2016.
p. 61-67.
DOI:
10.1007/978-3-319-48254-5_8.
Disponível em: http://repositorio.ipen.br/handle/123456789/26035. Acesso em: $DATA.
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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.
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CARDOSO, ELIZABETH C.L.
; SEIXAS, MARCUS V.S.; WIEBECK, HELIO; OLIVEIRA, RENE R.
; MACHADO, GLAUSON A.F.
; MOURA, ESPERIDIANA A.B.
.
Development of bio-based foams prepared from PBAT/PLA reinforced with biio-calcium carbonate compatibilized by electron beam radiation.
In: KHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); CARPENTER, JOHN S. (Ed.); HWANG, JIANN-YANG (Ed.); MONTEIRO, SERGIO N. (Ed.); LI, JIAN (Ed.); FIRRAO, DONATO (Ed.); ZHANG, MINGMING (Ed.); PENG, ZHIWEI (Ed.); ESCOBEDO, JUAN P. (Ed.); BAI, CHENGUANG (Ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 145th . ANNUAL MEETING & EXIBITION,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
New York: Wiley , 2016,
2016.
p. 637-644.
DOI:
10.1007/978-3-319-48210-1_80
Palavras-Chave:
electron beams;
foams;
calcium carbonates;
eggs;
wastes;
composite materials;
tensile properties;
x-ray diffraction;
ion microscopy;
scanning electron microscopy;
plastics;
polymers;
thermal gravimetric analysis
CARDOSO, ELIZABETH C.L.; SEIXAS, MARCUS V.S.; WIEBECK, HELIO; OLIVEIRA, RENE R.; MACHADO, GLAUSON A.F.; MOURA, ESPERIDIANA A.B.
Development of bio-based foams prepared from PBAT/PLA reinforced with biio-calcium carbonate compatibilized by electron beam radiation.
In:
KHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); LI, JIAN (ed.); FIRRAO, DONATO (ed.); ZHANG, MINGMING (ed.); PENG, ZHIWEI (ed.); ESCOBEDO, JUAN P. (ed.); BAI, CHENGUANG (ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 145th . ANNUAL MEETING & EXIBITION,
February 14-18, 2016,
Nashville, Tennessee, USA.
Proceedings...
New York: Wiley , 2016,
2016.
p. 637-644.
DOI:
10.1007/978-3-319-48210-1_80.
Disponível em: http://repositorio.ipen.br/handle/123456789/26587. Acesso em: $DATA.
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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.
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.
Como referenciar este item
-
SCAGLIUSI, SANDRA R.
; CARDOSO, ELISABETH C.L.
; LUGAO, ADEMAR B.
.
Effect of gamma radiation on the mechanical and degradation properties of bromobutyl rubber compounds.
In: CARPENTER, JOHN S. (Ed.); BAI, CHENGUANG (Ed.); ESCOBEDO, JUAN P. (Ed.); HWANG, JIANN-YANG (Ed.); IKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); LI, JIAN (Ed.); MONTEIRO, SERGIO N. (Ed.); PENG, ZHIWEI (Ed.); ZHANG, MINGMING (Ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 144th . ANNUAL MEETING & EXIBITION,
March 15-19, 2015,
Orlando, Florida.
Proceedings...
New York: Wiley , 2015,
2015.
p. 1307-1316.
DOI:
10.1007/978-3-319-48127-2_156
Palavras-Chave:
gamma radiation;
2-methylpropane;
isoprene;
rubbers;
radiation effects;
ionizing radiations;
radiolysis;
cross-linking
SCAGLIUSI, SANDRA R.; CARDOSO, ELISABETH C.L.; LUGAO, ADEMAR B.
Effect of gamma radiation on the mechanical and degradation properties of bromobutyl rubber compounds.
In:
CARPENTER, JOHN S. (ed.); BAI, CHENGUANG (ed.); ESCOBEDO, JUAN P. (ed.); HWANG, JIANN-YANG (ed.); IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); LI, JIAN (ed.); MONTEIRO, SERGIO N. (ed.); PENG, ZHIWEI (ed.); ZHANG, MINGMING (ed.) CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS. 144th . ANNUAL MEETING & EXIBITION,
March 15-19, 2015,
Orlando, Florida.
Proceedings...
New York: Wiley , 2015,
2015.
p. 1307-1316.
DOI:
10.1007/978-3-319-48127-2_156.
Disponível em: http://repositorio.ipen.br/handle/123456789/25644. 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.
Como referenciar este item
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