Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler

Detalhes bibliográficos
Autor(a) principal: SANTOS, TAMIRIS M.R.
Data de Publicação: 2018
Outros Autores: CAMPOS, LUIZA M.P., SANTOS, MARIANA de J., BOARO, LETICIA C., PARRA, DUCLERC F., INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
Tipo de documento: Artigo de conferência
Título da fonte: Repositório Institucional do IPEN
Texto Completo: http://repositorio.ipen.br/handle/123456789/28357
Resumo: In the present study was observed the influence of gamma radiation in thermal and mechanical properties of the experimental dental composites based on BISGMA/TEGDMA filled with pre-irradiated MMT nanoparticles (Cloisite?? 20A). MMT nanoparticle was pre-irradiated at doses of 10, 15 and 70 kGy. As a control group MMT nanoparticle was added in the polymeric matrix without pre-irradiation. Four formulations of experimental nanocomposites were studied all with 50% wt of filler. The characterization of the experimental composites was performed by means of the following techniques: Thermogravimetry Analysis (TGA), Elastic Modulus and Flexural Strength. It was observed that the group filled with pre-irradiated nanoparticles at dose of 70 kGy showed a delay in the decomposition temperature when compared to the control group. For elastic modulus the results showed a proportional increase related to the dose of radiation applied in the MMT nanoparticle. Regarding flexural strength, the groups filled with pre???irradiated nanoparticles and the control group presented similar results.
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spelling 2018-01-17T17:36:11Z2018-01-17T17:36:11ZOctober 22-27, 2017http://repositorio.ipen.br/handle/123456789/28357In the present study was observed the influence of gamma radiation in thermal and mechanical properties of the experimental dental composites based on BISGMA/TEGDMA filled with pre-irradiated MMT nanoparticles (Cloisite?? 20A). MMT nanoparticle was pre-irradiated at doses of 10, 15 and 70 kGy. As a control group MMT nanoparticle was added in the polymeric matrix without pre-irradiation. Four formulations of experimental nanocomposites were studied all with 50% wt of filler. The characterization of the experimental composites was performed by means of the following techniques: Thermogravimetry Analysis (TGA), Elastic Modulus and Flexural Strength. It was observed that the group filled with pre-irradiated nanoparticles at dose of 70 kGy showed a delay in the decomposition temperature when compared to the control group. For elastic modulus the results showed a proportional increase related to the dose of radiation applied in the MMT nanoparticle. Regarding flexural strength, the groups filled with pre???irradiated nanoparticles and the control group presented similar results.Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2018-01-17T17:36:11Z No. of bitstreams: 1 24192.pdf: 360824 bytes, checksum: 4f646b24d6ed86ca62220dbe25a9e984 (MD5)Made available in DSpace on 2018-01-17T17:36:11Z (GMT). No. of bitstreams: 1 24192.pdf: 360824 bytes, checksum: 4f646b24d6ed86ca62220dbe25a9e984 (MD5)Associa????o Brasileira de Energia Nuclearcomposite materialsfillersflexural strengthfourier transformationgamma radiationinfrared spectrananocompositesnanoparticlespolymersradiation effectsthermal gravimetric analysisthermodynamic propertiesNfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as fillerinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectINACIRio de Janeiro, RJBelo Horizonte, MGSANTOS, TAMIRIS M.R.CAMPOS, LUIZA M.P.SANTOS, MARIANA de J.BOARO, LETICIA C.PARRA, DUCLERC F.INTERNATIONAL NUCLEAR ATLANTIC CONFERENCEinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN241922017SANTOS, TAMIRIS M.R.CAMPOS, LUIZA M.P.SANTOS, MARIANA de J.PARRA, DUCLERC F.18-01Proceedings14099721914543562SANTOS, TAMIRIS M.R.:14099:740:SCAMPOS, LUIZA M.P.:7219:740:NSANTOS, MARIANA DE J.:14543:-1:NPARRA, DUCLERC F.:562:740:NORIGINAL24192.pdf24192.pdfapplication/pdf360824http://repositorio.ipen.br/bitstream/123456789/28357/1/24192.pdf4f646b24d6ed86ca62220dbe25a9e984MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/28357/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/283572022-08-10 14:45:01.289oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102022-08-10T14:45:01Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false
dc.title.pt_BR.fl_str_mv Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler
title Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler
spellingShingle Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler
SANTOS, TAMIRIS M.R.
composite materials
fillers
flexural strength
fourier transformation
gamma radiation
infrared spectra
nanocomposites
nanoparticles
polymers
radiation effects
thermal gravimetric analysis
thermodynamic properties
title_short Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler
title_full Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler
title_fullStr Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler
title_full_unstemmed Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler
title_sort Nfluence of radiation on the thermal and mechanical properties of BISGMA / TEGDMA based nanocomposites using pre-irradiated MMT nanoparticles as filler
author SANTOS, TAMIRIS M.R.
author_facet SANTOS, TAMIRIS M.R.
CAMPOS, LUIZA M.P.
SANTOS, MARIANA de J.
BOARO, LETICIA C.
PARRA, DUCLERC F.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
author_role author
author2 CAMPOS, LUIZA M.P.
SANTOS, MARIANA de J.
BOARO, LETICIA C.
PARRA, DUCLERC F.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv SANTOS, TAMIRIS M.R.
CAMPOS, LUIZA M.P.
SANTOS, MARIANA de J.
BOARO, LETICIA C.
PARRA, DUCLERC F.
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
dc.subject.por.fl_str_mv composite materials
fillers
flexural strength
fourier transformation
gamma radiation
infrared spectra
nanocomposites
nanoparticles
polymers
radiation effects
thermal gravimetric analysis
thermodynamic properties
topic composite materials
fillers
flexural strength
fourier transformation
gamma radiation
infrared spectra
nanocomposites
nanoparticles
polymers
radiation effects
thermal gravimetric analysis
thermodynamic properties
description In the present study was observed the influence of gamma radiation in thermal and mechanical properties of the experimental dental composites based on BISGMA/TEGDMA filled with pre-irradiated MMT nanoparticles (Cloisite?? 20A). MMT nanoparticle was pre-irradiated at doses of 10, 15 and 70 kGy. As a control group MMT nanoparticle was added in the polymeric matrix without pre-irradiation. Four formulations of experimental nanocomposites were studied all with 50% wt of filler. The characterization of the experimental composites was performed by means of the following techniques: Thermogravimetry Analysis (TGA), Elastic Modulus and Flexural Strength. It was observed that the group filled with pre-irradiated nanoparticles at dose of 70 kGy showed a delay in the decomposition temperature when compared to the control group. For elastic modulus the results showed a proportional increase related to the dose of radiation applied in the MMT nanoparticle. Regarding flexural strength, the groups filled with pre???irradiated nanoparticles and the control group presented similar results.
publishDate 2018
dc.date.evento.pt_BR.fl_str_mv October 22-27, 2017
dc.date.accessioned.fl_str_mv 2018-01-17T17:36:11Z
dc.date.available.fl_str_mv 2018-01-17T17:36:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ipen.br/handle/123456789/28357
url http://repositorio.ipen.br/handle/123456789/28357
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.coverage.pt_BR.fl_str_mv I
dc.publisher.none.fl_str_mv Associa????o Brasileira de Energia Nuclear
publisher.none.fl_str_mv Associa????o Brasileira de Energia Nuclear
dc.source.none.fl_str_mv reponame:Repositório Institucional do IPEN
instname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)
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instname_str Instituto de Pesquisas Energéticas e Nucleares (IPEN)
instacron_str IPEN
institution IPEN
reponame_str Repositório Institucional do IPEN
collection Repositório Institucional do IPEN
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