Navegação Livros - Capítulos por assunto "polymers"
- Página inicial
- →
- IPEN
- →
- Livros - Capítulos
- →
- Navegação Livros - Capítulos por assunto
- Sobre
- Perfil Técnico
- Política de funcionamento
- Ajuda
- Apresentação
Navegação Livros - Capítulos por assunto "polymers"
Itens para a visualização no momento 1-18 de 18
-
COSTA, ROBSON S.
; MOURA, ESPERIDIANA A.B.
. A bibliometric analysis of the strategy and performance measurement of the polymer matrix nanomaterials development scenario globally, and the participation of Brazil.
In: LI, JIAN (Ed.); ZHANG, MINGMING (Ed.); LI, BOWEN (Ed.); MONTEIRO, SERGIO N. (Ed.); IKHMAYIES, SHADIA (Ed.); KALAY, YUNUS E. (Ed.); HWANG, JIANN-YANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); CARPENTER, JOHN S. (Ed.); BROWN, ANDREW D. (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2020.
p. 329-342,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-36628-5_31
Abstract:
Extensive studies have been conducted worldwide on the strategy for the
development of nanomaterials. One of the known strategies for this has aroused
interest in the market is the incorporation of the nanoparticles, extracted from the
residues in thematrices of the polymers for the production of environmentally correct
nanocomposites. This work presents a survey of the scientific knowledge of nanomaterials
of the polymer matrix and a panoramic view of the evolution of these nanomaterials
are subject, in order to meet the criteria of sustainable development due to the
environmental concerns. This study also intends to use bibliometric tools to database
acquisition and analysis of bibliographic reviews for an evaluation of the scenarios
in the world on the development of polymeric nanomaterials based on three different
classes of polymeric nanocomposites: polymer/clay; polymer/graphene, and
polymer/nanocellulose nanocomposites.
Palavras-Chave: statistical data; nanomaterials; nanocomposites; scientific personnel; knowledge management; polymers
. A bibliometric analysis of the strategy and performance measurement of the polymer matrix nanomaterials development scenario globally, and the participation of Brazil. In: LI, JIAN (ed.); ZHANG, MINGMING (ed.); LI, BOWEN (ed.); MONTEIRO, SERGIO N. (ed.); IKHMAYIES, SHADIA (ed.); KALAY, YUNUS E. (ed.); HWANG, JIANN-YANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); CARPENTER, JOHN S. (ed.); BROWN, ANDREW D. (ed.). Characterization of Minerals, Metals, and Materials. Cham, CZ, Switzerland: Springer Nature Switzerland AG, 2020. p. 329-342. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-030-36628-5_31. Disponível em: http://repositorio.ipen.br/handle/123456789/31850. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
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
. 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.Como referenciar este itemEsta 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.
-
KODAMA, YASKO
. Degradability: Enzymatic and simulated compost soil of PLLA:PCL blend and on their composite with coconut fiber.
In: CHAMY, ROLANDO (Ed.); ROSENKRANZ, FRANCISCA (Ed.).
Biodegradation of Hazardous and Special Products.
InTech: Open Access,
2013.
Notas de conteúdo: Capitulo 6
Palavras-Chave: composite materials; polymers; lactates; lactic acid; biodegradation; coconuts; fibers; ionizing radiations; cobalt 60; radiation effects
. Degradability: Enzymatic and simulated compost soil of PLLA:PCL blend and on their composite with coconut fiber. In: CHAMY, ROLANDO (ed.); ROSENKRANZ, FRANCISCA (ed.). Biodegradation of Hazardous and Special Products. InTech: Open Access, 2013. Disponível em: http://repositorio.ipen.br/handle/123456789/23161. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
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
. 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.Como referenciar este itemEsta 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.
-
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
. 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.Como referenciar este itemEsta 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.
-
BARTOLOMEI, MARCIO R.X.
; CARMO, KARINA H.S.
; SANTOS, BIANCA S.
; BARTOLOMEI, SUELLEN S.
; OLIVEIRA, RENE R.
; MOURA, ESPERIDIANA A.B.
. Investigation on mechanical and thermal behaviours of PBAT/PLA blend reinforced with reduced graphene oxide nanosheets.
In: LI, JIAN (Ed.); ZHANG, MINGMING (Ed.); LI, BOWEN (Ed.); MONTEIRO, SERGIO N. (Ed.); IKHMAYIES, SHADIA (Ed.); KALAY, YUNUS E. (Ed.); HWANG, JIANN-YANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); CARPENTER, JOHN S. (Ed.); BROWN, ANDREW D. (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2020.
p. 631-639,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-36628-5_62
Abstract:
The aim of this study was to process and investigate the changes in
the mechanical and morphological properties of the biodegradable nanocomposites
based on polybutylene adipate-co-terephthalate (PBAT)/poly(lactic acid) (PLA)
blend (PBAT/PLA blend) due to the incorporation of reduced graphene oxide (RGO)
nanosheets. The biodegradable polymeric nanocomposites were prepared by melting
extrusion process using a twin-screw extruder machine. The influence of the RGO
nanosheets incorporation on mechanical and thermal properties of PBAT/PLA blend
was investigated by tensile Thermogravimetric (TG), X-Ray diffraction (XRD), differential
scanning calorimetry (DSC), and tensile test analysis. Results showed that
incorporation of the small amount ofRGO(0.1wt.%) ofRGOnanosheets in the blend
matrix of PBAT/PLA resulted in an important gain of mechanical properties of the
blend. This result indicates that a very small amount of RGO nanosheets addition in
the PBAT/PLA can lead to obtaining materials with superior properties suitable for
several industrial applications.
Palavras-Chave: polymers; graphene; oxides; biodegradation; mechanical tests
. Investigation on mechanical and thermal behaviours of PBAT/PLA blend reinforced with reduced graphene oxide nanosheets. In: LI, JIAN (ed.); ZHANG, MINGMING (ed.); LI, BOWEN (ed.); MONTEIRO, SERGIO N. (ed.); IKHMAYIES, SHADIA (ed.); KALAY, YUNUS E. (ed.); HWANG, JIANN-YANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); CARPENTER, JOHN S. (ed.); BROWN, ANDREW D. (ed.). Characterization of Minerals, Metals, and Materials. Cham, CZ, Switzerland: Springer Nature Switzerland AG, 2020. p. 631-639. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-030-36628-5_62. Disponível em: http://repositorio.ipen.br/handle/123456789/31857. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
KODAMA, YASKO
; GIOVEDI, CLAUDIA. Ionizing radiation effect on morphology of PLLA:PCL blends and on their composite with coconut fiber.
In: KAZMIRUK, VIACHESLAV (Ed.).
Scanning Electron Microscope.
InTech: Open Access,
2012.
Notas de conteúdo: Capitulo 13
Palavras-Chave: polymers; biodegradation; ionizing radiations; radiation effects; coconuts; fibers; scanning electron microscopy
. Ionizing radiation effect on morphology of PLLA:PCL blends and on their composite with coconut fiber. In: KAZMIRUK, VIACHESLAV (ed.). Scanning Electron Microscope. InTech: Open Access, 2012. Disponível em: http://repositorio.ipen.br/handle/123456789/23145. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
TAMURA, CAROLINE S.
; ARANTES, MARIANA
; CARMO, KARINA H.S.
; SANTOS, BIANCA S.
; OLIVEIRA, RENE R.
; MOURA, ESPERIDIANA A.B.
. Mechanical and morphological properties of hybrid composites based on recycled LDPE/EVA blend reinforced with clay and babassu fiber residues.
In: LI, JIAN (Ed.); ZHANG, MINGMING (Ed.); LI, BOWEN (Ed.); MONTEIRO, SERGIO N. (Ed.); IKHMAYIES, SHADIA (Ed.); KALAY, YUNUS E. (Ed.); HWANG, JIANN-YANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); CARPENTER, JOHN S. (Ed.); BROWN, ANDREW D. (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2020.
p. 661-669,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-36628-5_65
Abstract:
Over the years the consumption of plastic products made of conventional
polymers has produced a large amount of waste which has led to disposal problems
worldwide. Among the alternatives to minimize these problems are reuse and recycling
practices. Then, the recycling of plastic and the use of recycled materials to
produce new materials reinforced with nanoparticles from natural resources can be
an alternative to reduce inappropriate waste disposal. The objective of this study is to
investigate the effects of the addition of clay and non-treated babassu fiber residues
on the mechanical and morphological properties of composite based on recycled
LDPE/EVA blend. Composite materials containing 1–3 wt% of babassu residues
and 1 wt% of clay were prepared using a twin-screw extruder machine and flat die
single extrusion process, in order to prepare hybrid composites sheets. The sheets
prepared by recycled LDPE/EVA blend and its composites were characterized by
tensile tests, XRD, and FE-SEM analysis and the correlation between properties was
discussed.
Palavras-Chave: mixers; recycling; polymers; films; fibers; composite materials; hybridization
. Mechanical and morphological properties of hybrid composites based on recycled LDPE/EVA blend reinforced with clay and babassu fiber residues. In: LI, JIAN (ed.); ZHANG, MINGMING (ed.); LI, BOWEN (ed.); MONTEIRO, SERGIO N. (ed.); IKHMAYIES, SHADIA (ed.); KALAY, YUNUS E. (ed.); HWANG, JIANN-YANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); CARPENTER, JOHN S. (ed.); BROWN, ANDREW D. (ed.). Characterization of Minerals, Metals, and Materials. Cham, CZ, Switzerland: Springer Nature Switzerland AG, 2020. p. 661-669. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-030-36628-5_65. Disponível em: http://repositorio.ipen.br/handle/123456789/31858. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
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
. 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.Como referenciar este itemEsta 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.
-
TEDESCO, ANTONIO C.; RIBEIRO, MARTHA S.
; PAULA, LEONARDO B. de. Novas tecnologias em fotossensibilizadores para a terapia fotodinâmica.
In: NUNEZ, SILVIA C. (Ed.); RIBEIRO, MARTHA S. (Ed.); GARCEZ, AGUINALDO S. (Ed.).
PDT - Terapia Fotodinâmica Antimicrobiana na Odontologia.
2 ed..
Rio de Janeiro: Elsevier,
2019.
p. 43-53,
cap. 5.
Palavras-Chave: photodynamic therapy; antimicrobial agents; commercialization; photosensitivity; nanotechnology; polymers; compatibility
. Novas tecnologias em fotossensibilizadores para a terapia fotodinâmica. In: NUNEZ, SILVIA C. (ed.); RIBEIRO, MARTHA S. (ed.); GARCEZ, AGUINALDO S. (ed.). PDT - Terapia Fotodinâmica Antimicrobiana na Odontologia. 2 ed.. Rio de Janeiro: Elsevier, 2019. cap. 5. p. 43-53. Disponível em: http://repositorio.ipen.br/handle/123456789/30875. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
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
. 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.Como referenciar este itemEsta 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.
-
COSTA, ROBSON S.
; ARAUJO, DANIELLE G.
; ANDRADE, MARCIO S. de
; OLIVEIRA, RENE R.
; RANGARI, VIJAYA; MOURA, ESPERIDIANA A.B.
; DIAS, FRANCISCO V.. Production and characterization of PBAT reinforced with clay and graphene oxide nanosheets: a comparative study.
In: LI, JIAN (Ed.); ZHANG, MINGMING (Ed.); LI, BOWEN (Ed.); MONTEIRO, SERGIO N. (Ed.); IKHMAYIES, SHADIA (Ed.); KALAY, YUNUS E. (Ed.); HWANG, JIANN-YANG (Ed.); ESCOBEDO-DIAZ, JUAN P. (Ed.); CARPENTER, JOHN S. (Ed.); BROWN, ANDREW D. (Ed.).
Characterization of Minerals, Metals, and Materials.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2020.
p. 689-699,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-36628-5_68
Abstract:
The poly (butylene adipate-co-terephthalate) (PBAT), a biodegradable
polymer, is among the most promising materials to be considered as environmentally
friendly high performance biodegradable plastics. However, the mechanical
properties of PBAT are not the best for several applications. According to the literature,
the properties of the biodegradable polymer can be improved by addition
of a small amount of nanofillers, such as clay, silica, and graphene. The objective
of this study is to compare the effect of the addition of Cloisite clay and graphene
oxide (GO) on the properties of flexible films based on PBAT matrix. The composite
films based on PBAT with addition of Cloisite (2.0 wt%) and PBAT composite films
with addition of Cloisite and GO (0.1–0.2 wt%) were prepared by extrusion, using
a twin-screw extruder and a flat die single extruder. The effects of the addition of
Cloisite clay and graphene oxide on mechanical and thermal properties of films were
evaluated by mechanical and water absorption tests, FE-SEM, XRD, and Raman
analysis.
Palavras-Chave: graphene; oxide minerals; nanocomposites; polymers; butenes; biodegradation; mechanical properties; flexibility
. Production and characterization of PBAT reinforced with clay and graphene oxide nanosheets: a comparative study. In: LI, JIAN (ed.); ZHANG, MINGMING (ed.); LI, BOWEN (ed.); MONTEIRO, SERGIO N. (ed.); IKHMAYIES, SHADIA (ed.); KALAY, YUNUS E. (ed.); HWANG, JIANN-YANG (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); CARPENTER, JOHN S. (ed.); BROWN, ANDREW D. (ed.). Characterization of Minerals, Metals, and Materials. Cham, CZ, Switzerland: Springer Nature Switzerland AG, 2020. p. 689-699. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-030-36628-5_68. Disponível em: http://repositorio.ipen.br/handle/123456789/31860. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
TRONTO, J.; PEROTTI, G.F.; BIZETO, M.A.; PARRA, D.F.
; CONSTANTINO, V.R.L.. Starch and synthetic clay nanocomposites.
In: .
Activity Report 2007.
LNLS: Campinas, 2007,
2007.
Palavras-Chave: starch; cassava; synthetic materials; clays; biological materials; polymers; swelling; x-ray diffraction; thermal analysis; scanning electron microscopy
. Starch and synthetic clay nanocomposites. In: . Activity Report 2007. LNLS: Campinas, 2007, 2007. Disponível em: http://repositorio.ipen.br/handle/123456789/23039. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
CARDOSO, ELIZABETH C.L.
; PARRA, DUCLERC F.
; SCAGLIUSI, SANDRA R.
; SALES, RICARDO M.
; CAVIQUIOLI, FERNANDO
; LUGAO, ADEMAR B.
. Study of bio-based foams prepared from PBAT/PLA reinforced with bio-calcium carbonate and compatibilized with gamma radiation.
In: ALMAYAHI, BASIM (Ed.).
Use of Gamma Radiation Techniques in Peaceful Applications.
London, UK: IntechOpen,
2019.
p. 1-17,
cap. 9.
DOI:
10.5772/intechopen.85462
Abstract:
Foamed polymers are future materials, considered “green materials” due to their
properties with very low consumption of raw materials; they can be used to ameliorate
appearance of structures besides contributing for thermal and acoustic insulation.
Nevertheless, waste disposal has generated about 20–30% of total of solid
volume in landfills besides prejudicing flora and fauna by uncontrolled disposal.
The development of biodegradable polymers aims to solve this problem, considering
that in 2012, bio-plastics market was evaluated in 1.4 million tons produced and
in 2017 attained 6.2 million tons. Biodegradable polymers as poly(lactic acid) (PLA)
and poly(butylene adipate-co-terephthalate) (PBAT) are thermoplastics which can
be processed using the most conventional polymer processing methods. PLA is high
in strength and modulus but brittle, while PBAT is flexible and tough. In order to
reduce interfacial tension exhibited by PLA/PBAT blends, it was used as compatibilizing
agent 5 phr of PLA previously gamma-radiated at 150 kGy. Ionizing radiation
induces compatibilization by free radicals, improving the dispersion and adhesion
of blend phases, without using chemical additives and at room temperature. As
a reinforcement agent, calcium carbonate from avian eggshell waste was used, at
10 ph of micro particles, 125 μm. Admixtures were further processed in a singlescrew
extruder, using CO2 as physical blowing agent (PBA). Property investigations
were performed by DSC, TGA, XRD, SEM, FTIR, and mechanical essays.
Palavras-Chave: butenes; gamma radiation; eggs; shells; compatibility; polymers
. Study of bio-based foams prepared from PBAT/PLA reinforced with bio-calcium carbonate and compatibilized with gamma radiation. In: ALMAYAHI, BASIM (ed.). Use of Gamma Radiation Techniques in Peaceful Applications. London, UK: IntechOpen, 2019. cap. 9. p. 1-17. DOI: 10.5772/intechopen.85462. Disponível em: http://repositorio.ipen.br/handle/123456789/30871. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
CARDOSO, ELIZABETH C.L.
; OLIVEIRA, RENE R.
; MACHADO, GLAUSON A.F.
; MOURA, ESPERIDIANA A.B.
. Study of flexible films prepared from PLA/PBAT blend and PLA E-beam irradiated as compatibilizing agent.
In: IKHMAYIES, SHADIA (Ed.); LI, BOWEN (Ed.); CARPENTER, JOHN S. (Ed.); LI, JLAN (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. 121-129,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-51382-9_14
Abstract:
Plastics global annual production exceeds 250 million tons and more than 40% of the total plastic production is used as packaging materials. In recent years polymeric materials derived from biomass have received great attention due to scarce petroleum resources and environmental concerns. PLA is one of the most extensively studied bio-based and bio-compostable aliphatic polyesters; nevertheless, high brittleness and low toughness limits its application. Blending PLA with PBAT (Poly(butylene adipate-co-terephthalate)), an aliphatic-aromatic copolyester, was the solution found due to its high toughness and biodegradability. Differences between PLA and PBAT solubility parameter values lead to the formation of immiscible blends as well as reduction in their mechanical performance besides a poor morphology; so, 5% of pre-irradiated PLA and a previous compatibilized PLA/PBAT (EcovioTM) were added to PLA/PBAT blends in order to improve miscibility phases. Investigations were accomplished on phase morphology (SEM), mechanical properties, thermal behavior and X-ray diffractions (XRD).
Palavras-Chave: lactic acid; polymers; butenes; electron beams; plastics; biodegradation
. Study of flexible films prepared from PLA/PBAT blend and PLA E-beam irradiated as compatibilizing agent. In: IKHMAYIES, SHADIA (ed.); LI, BOWEN (ed.); CARPENTER, JOHN S. (ed.); LI, JLAN (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. 121-129. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-319-51382-9_14. Disponível em: http://repositorio.ipen.br/handle/123456789/29227. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
POVEDA, PATRICIA N.S.
; SILVA, LEONARDO G.A. e
. Study of the influence of organic peroxide and elastomeric modifier in the mechanical and flow properties of the recycled polypropylene.
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. 787-792,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-05749-7_79
Abstract:
Plastics have been replacing other traditional materials such as wood,
metal and glass over the past decades due to its versatility in properties, processability,
and cost. Polypropylene can be highlighted as one of the main thermoplastics
used in industry since it presents properties suitable for various applications, combining
density, cost, availability, and ease of molding. By considering the mechanical
recycling of post-consumer or post-industrial material, difficulty in flowability is
observed, which demands modification to promote processability. This work used
the traditional solution for flow modification (peroxide) and elastomeric modifier
to evaluate the impact of these additives on the mechanical and flow properties of
recycled polypropylene by tensile strength, melt index and spiral flow analyses.
Although the modified sample with organic peroxide had a higher melt flow index,
the mechanical resistance was lower than the elastomeric modifier, which showed
good performance in the material flow during processing according to spiral flow
analysis.
Palavras-Chave: polypropylene; elastomers; peroxides; modifications; polymers
. Study of the influence of organic peroxide and elastomeric modifier in the mechanical and flow properties of the recycled polypropylene. 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. 787-792. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-030-05749-7_79. Disponível em: http://repositorio.ipen.br/handle/123456789/29856. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
ZAFALON, ANGELICA T.
; SANTOS, VINICIUS J. dos
; ESPOSITO, FERNANDA; LINCOPAN, NILTON; RANGARI, VIJAYA; LUGAO, ADEMAR B.
; PARRA, DUCLERC F.
. Synthesis of polymeric hydrogel loaded with antibiotic drug for wound healing 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.); 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. 165-176,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-319-72484-3_18
Abstract:
Polymeric hydrogels are natural or synthetic systems, which have gained interest due to their high biocompatibility with soft tissues. These types of hydrogels have been used for wound dressing as a drug delivery system. Here in this study the polymeric hydrogels based wound healing systems were prepared using poly (N-vinyl-2-pyrrolidone) (PVP), poly (ethylene glycol) (PEG), agar and neomycin drug followed by gamma irradiation to promote crosslinking and sterilization. The influence of irradiation process with 25 kGy dose was investigated. The gel fraction and maximum swelling were estimated using physicochemical methods and found about 95% gel fraction and 1100% swelling after 8 h of immersion. Neomycin released from hydrogel was carried out by Liquid Chromatography-Mass Spectrometry method and the drug concentration remained constant for 48 h. Hydrogel/neomycin exhibited antibacterial effects against Staphylococcus aureus. With these results, it can be inferred that hydrogel/neomycin is a suitable candidate for wound dressing.
Palavras-Chave: hydrogels; polymers; antibiotics; drugs; wounds; neomycin; pvp; irradiation
. Synthesis of polymeric hydrogel loaded with antibiotic drug for wound healing 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.); 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. 165-176. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-319-72484-3_18. Disponível em: http://repositorio.ipen.br/handle/123456789/28873. Acesso em: $DATA.Como referenciar este itemEsta 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.
-
MOURA, ESPERIDIANA A.B.
. The potential of micro- and nano-sized fillers extracted from agroindustry residues as reinforcements of thermoplastic-based biocomposites: a review.
In: IKHMAYIES, SHADIA (Ed.); LI, JIAN (Ed.); VIEIRA, CARLOS M.F. (Ed.); MARGEM, JEAN I. (Ed.); BRAGA, FABIO de O. (Ed.).
Green Materials Engineering.
Cham, CZ, Switzerland: Springer Nature Switzerland AG,
2019.
p. 89-100,
(The Minerals, Metals & Materials Series).
DOI:
10.1007/978-3-030-10383-5_10
Abstract:
Currently, the relevance of reuse of agroindustrial waste to obtain fillers in micro- and nano-sizes for the development of biocomposite materials has grown significantly. Production processes based on sustainable and low carbon development have increased interest in more environmentally friendly polymer composites, which have made the origin of reinforcement materials a determining factor for their application in this segment. This work presents a review of the developments of our team in the field of thermoplastic biocomposites reinforced with micro- and nano-sized fillers extracted from agroindustry residues. The different residues from Brazilian agroindustry available for the extraction of micro- and nano-sized fillers for the production of polymer biocomposites, the methods of the extraction and treatments of these natural fillers are presented; and its application as reinforcements in thermoplastic-based biocomposite are discussed in this review.
Palavras-Chave: agriculture; agricultural wastes; environmental impacts; bagasse; biodegradation; thermoplastics; composite materials; fillers; polymers
. The potential of micro- and nano-sized fillers extracted from agroindustry residues as reinforcements of thermoplastic-based biocomposites: a review. In: IKHMAYIES, SHADIA (ed.); LI, JIAN (ed.); VIEIRA, CARLOS M.F. (ed.); MARGEM, JEAN I. (ed.); BRAGA, FABIO de O. (ed.). Green Materials Engineering. Cham, CZ, Switzerland: Springer Nature Switzerland AG, 2019. p. 89-100. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-030-10383-5_10. Disponível em: http://repositorio.ipen.br/handle/123456789/30081. Acesso em: $DATA.Como referenciar este itemEsta 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.
Itens para a visualização no momento 1-18 de 18
Buscar no repositório
Navegar
Minha conta
Visualizar
A pesquisa no RD utiliza os recursos de busca da maioria das bases de dados. No entanto algumas dicas podem auxiliar para obter um resultado mais pertinente.
✔ É possível efetuar a busca de um autor ou um termo em todo o RD, por meio do Buscar no Repositório , isto é, o termo solicitado será localizado em qualquer campo do RD. No entanto esse tipo de pesquisa não é recomendada a não ser que se deseje um resultado amplo e generalizado.
✔ A pesquisa apresentará melhor resultado selecionando um dos filtros disponíveis em Navegar
✔ Os filtros disponíveis em Navegar tais como: Coleções, Ano de publicação, Títulos, Assuntos, Autores, Revista, Tipo de publicação são autoexplicativos. O filtro, Autores IPEN apresenta uma relação com os autores vinculados ao IPEN; o ID Autor IPEN diz respeito ao número único de identificação de cada autor constante no RD e sob o qual estão agrupados todos os seus trabalhos independente das variáveis do seu nome; Tipo de acesso diz respeito à acessibilidade do documento, isto é , sujeito as leis de direitos autorais, ID RT apresenta a relação dos relatórios técnicos, restritos para consulta das comunidades indicadas.
A opção Busca avançada utiliza os conectores da lógica boleana, é o melhor recurso para combinar chaves de busca e obter documentos relevantes à sua pesquisa, utilize os filtros apresentados na caixa de seleção para refinar o resultado de busca. Pode-se adicionar vários filtros a uma mesma busca.
Exemplo:
Buscar os artigos apresentados em um evento internacional de 2015, sobre loss of coolant, do autor Maprelian.
Autor: Maprelian
Título: loss of coolant
Tipo de publicação: Texto completo de evento
Ano de publicação: 2015
✔ Para indexação dos documentos é utilizado o Thesaurus do INIS, especializado na área nuclear e utilizado em todos os países membros da International Atomic Energy Agency – IAEA , 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.
✔ 95% do RD apresenta o texto completo do documento com livre acesso, para aqueles que apresentam o 
significa que e o documento está sujeito as leis de direitos autorais, solicita-se nesses casos contatar a Biblioteca do IPEN,
bibl@ipen.br
.
✔ Ao efetuar a busca por um autor o RD apresentará uma relação de todos os trabalhos depositados no RD. No lado direito da tela são apresentados os coautores com o número de trabalhos produzidos em conjunto bem como os assuntos abordados e os respectivos anos de publicação agrupados.
✔ O RD disponibiliza um quadro estatístico de produtividade, onde é possível visualizar o número dos trabalhos agrupados por tipo de coleção, a medida que estão sendo depositados no RD.
✔ Na página inicial nas referências são sinalizados todos os autores IPEN, ao clicar nesse símbolo será aberta uma nova página correspondente à aquele autor – trata-se da página do pesquisador.
✔ Na página do pesquisador, é possível verificar, as variações do nome, a relação de todos os trabalhos com texto completo bem como um quadro resumo numérico; há links para o Currículo Lattes e o Google Acadêmico ( quando esse for informado).
ATENÇÃO!
ESTE TEXTO "AJUDA" ESTÁ SUJEITO A ATUALIZAÇÕES CONSTANTES, A MEDIDA QUE NOVAS FUNCIONALIDADES E RECURSOS DE BUSCA FOREM SENDO DESENVOLVIDOS PELAS EQUIPES DA BIBLIOTECA E DA INFORMÁTICA.
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.
1. Portaria IPEN-CNEN/SP nº 387, que estabeleceu os princípios que nortearam a criação do RDI, clique aqui.
2. A experiência do Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP) na criação de um Repositório Digital Institucional – RDI, 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.