Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos

Detalhes bibliográficos
Autor(a) principal: Santos, Lucas Almeida
Data de Publicação: 2022
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UFS
Texto Completo: http://ri.ufs.br/jspui/handle/riufs/15863
Resumo: The use of aluminum silicate-based reinforcements has become an alternative for improving the mechanical, thermal and barrier properties of polymeric materials. In this sense, organomodified montmorillonite clay stands out among reinforcement materials for providing, even in small amounts, significant improvements in nonpolar polymers such as polyamides. Thus, the present study aimed to evaluate the influence of a nanofiller (Cloisite 30B) at levels of 3, 5 and 8% on the mechanical, thermal and barrier properties of biorenewable polyamides (PA 6.10 and PA 10.10). For this, samples were produced by the extrusion and injection method, which included pure polyamides and their blend, as well as these with the addition of clay in different concentrations. The characterization of these samples was initially carried out by XRD, SEM and EDS, in which it was possible to evaluate the degree of clay dispersion in the matrix of polyamides and the blend. The results pointed to the difficulty of dispersing the clay at higher concentrations, showing the presence of agglomerates in the composition with 8% clay. Subsequently, thermal analyzes were carried out by DSC and mechanical analyzes by tensile testing, which together with the gasoline permeability test, showed a strong influence of clay with 3% clay content, whose dispersion was more favored.
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spelling Santos, Lucas AlmeidaUeki, Marcelo Massayoshi2022-06-08T18:55:06Z2022-06-08T18:55:06Z2022-02-25SANTOS, Lucas Almeida. Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos. 2022. 93 f. Dissertação (Mestrado em Ciência e Engenharia de Materiais) - Universidade Federal de Sergipe, São Cristóvão, 2022.http://ri.ufs.br/jspui/handle/riufs/15863The use of aluminum silicate-based reinforcements has become an alternative for improving the mechanical, thermal and barrier properties of polymeric materials. In this sense, organomodified montmorillonite clay stands out among reinforcement materials for providing, even in small amounts, significant improvements in nonpolar polymers such as polyamides. Thus, the present study aimed to evaluate the influence of a nanofiller (Cloisite 30B) at levels of 3, 5 and 8% on the mechanical, thermal and barrier properties of biorenewable polyamides (PA 6.10 and PA 10.10). For this, samples were produced by the extrusion and injection method, which included pure polyamides and their blend, as well as these with the addition of clay in different concentrations. The characterization of these samples was initially carried out by XRD, SEM and EDS, in which it was possible to evaluate the degree of clay dispersion in the matrix of polyamides and the blend. The results pointed to the difficulty of dispersing the clay at higher concentrations, showing the presence of agglomerates in the composition with 8% clay. Subsequently, thermal analyzes were carried out by DSC and mechanical analyzes by tensile testing, which together with the gasoline permeability test, showed a strong influence of clay with 3% clay content, whose dispersion was more favored.A utilização de reforços a base de alumino silicatos se tornou uma alternativa para a melhoria nas propriedades de desempenho mecânico, térmico e de barreira dos materiais poliméricos. Nesse sentido, a argila montmorilonita organomodificada se destaca entre os materiais de reforço por proporcionar, mesmo em pequenas quantidades, melhorias significativas em polímeros apolares como as poliamidas. Dessa forma, o presente estudo teve como finalidade avaliar a influência de uma nanocarga (Cloisite 30B) em teores de 3, 5 e 8% nas propriedades mecânicas, térmicas e de barreira de poliamidas biorenováveis (PA 6.10 e PA 10.10). Para isso, foram produzidas ,pelo método de extrusão e injeção, amostras que incluíam as poliamidas puras e sua blenda, bem como estas com a adição da argila nas diferentes concentrações. A caracterização dessas amostras foi realizada inicialmente por DRX, MEV e EDS, em que foi possível avaliar o grau de dispersão da argila na matriz das poliamidas e da blenda. Os resultados apontaram para a dificuldade de dispersão da argila em concentrações maiores, mostrando a presença de aglomerados na composição com 8% de argila. Posteriormente, foram realizadas análises térmicas por DSC e mecânicas por ensaio de tração, que conjuntamente como teste de permeabilidade a gasolina, mostraram uma forte influência da argila com teor de 3% de argila, cuja dispersão foi mais favorecida.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqSão CristóvãoporPolímerosNanocompósitos (Materiais)ReforçosPoliamidasBlendasNanocompósitosReinforcementsPolyamidesBlendsNanocompositesENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICAPropriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitosStudy of the barrier, mechanical and thermal properties of biopolyamide blends (610/1010) and their nanocompositesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisPós-Graduação em Ciência e Engenharia de MateriaisUFSreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSinfo:eu-repo/semantics/openAccessLICENSElicense.txtlicense.txttext/plain; charset=utf-81475https://ri.ufs.br/jspui/bitstream/riufs/15863/1/license.txt098cbbf65c2c15e1fb2e49c5d306a44cMD51ORIGINALLUCAS_ALMEIDA_SANTOS.pdfLUCAS_ALMEIDA_SANTOS.pdfapplication/pdf3124161https://ri.ufs.br/jspui/bitstream/riufs/15863/2/LUCAS_ALMEIDA_SANTOS.pdf1c2ce4918faaf3a20639954af8eb361dMD52TEXTLUCAS_ALMEIDA_SANTOS.pdf.txtLUCAS_ALMEIDA_SANTOS.pdf.txtExtracted texttext/plain174922https://ri.ufs.br/jspui/bitstream/riufs/15863/3/LUCAS_ALMEIDA_SANTOS.pdf.txt0d347cfa831187e8e620bdfa0795a8e7MD53THUMBNAILLUCAS_ALMEIDA_SANTOS.pdf.jpgLUCAS_ALMEIDA_SANTOS.pdf.jpgGenerated Thumbnailimage/jpeg1281https://ri.ufs.br/jspui/bitstream/riufs/15863/4/LUCAS_ALMEIDA_SANTOS.pdf.jpg4da1ebc90fd282b8fb1335d12ef6f5aeMD54riufs/158632022-06-08 15:55:21.539oai:ufs.br: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Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2022-06-08T18:55:21Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false
dc.title.pt_BR.fl_str_mv Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos
dc.title.alternative.eng.fl_str_mv Study of the barrier, mechanical and thermal properties of biopolyamide blends (610/1010) and their nanocomposites
title Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos
spellingShingle Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos
Santos, Lucas Almeida
Polímeros
Nanocompósitos (Materiais)
Reforços
Poliamidas
Blendas
Nanocompósitos
Reinforcements
Polyamides
Blends
Nanocomposites
ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA
title_short Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos
title_full Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos
title_fullStr Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos
title_full_unstemmed Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos
title_sort Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos
author Santos, Lucas Almeida
author_facet Santos, Lucas Almeida
author_role author
dc.contributor.author.fl_str_mv Santos, Lucas Almeida
dc.contributor.advisor1.fl_str_mv Ueki, Marcelo Massayoshi
contributor_str_mv Ueki, Marcelo Massayoshi
dc.subject.por.fl_str_mv Polímeros
Nanocompósitos (Materiais)
Reforços
Poliamidas
Blendas
Nanocompósitos
topic Polímeros
Nanocompósitos (Materiais)
Reforços
Poliamidas
Blendas
Nanocompósitos
Reinforcements
Polyamides
Blends
Nanocomposites
ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA
dc.subject.eng.fl_str_mv Reinforcements
Polyamides
Blends
Nanocomposites
dc.subject.cnpq.fl_str_mv ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA
description The use of aluminum silicate-based reinforcements has become an alternative for improving the mechanical, thermal and barrier properties of polymeric materials. In this sense, organomodified montmorillonite clay stands out among reinforcement materials for providing, even in small amounts, significant improvements in nonpolar polymers such as polyamides. Thus, the present study aimed to evaluate the influence of a nanofiller (Cloisite 30B) at levels of 3, 5 and 8% on the mechanical, thermal and barrier properties of biorenewable polyamides (PA 6.10 and PA 10.10). For this, samples were produced by the extrusion and injection method, which included pure polyamides and their blend, as well as these with the addition of clay in different concentrations. The characterization of these samples was initially carried out by XRD, SEM and EDS, in which it was possible to evaluate the degree of clay dispersion in the matrix of polyamides and the blend. The results pointed to the difficulty of dispersing the clay at higher concentrations, showing the presence of agglomerates in the composition with 8% clay. Subsequently, thermal analyzes were carried out by DSC and mechanical analyzes by tensile testing, which together with the gasoline permeability test, showed a strong influence of clay with 3% clay content, whose dispersion was more favored.
publishDate 2022
dc.date.accessioned.fl_str_mv 2022-06-08T18:55:06Z
dc.date.available.fl_str_mv 2022-06-08T18:55:06Z
dc.date.issued.fl_str_mv 2022-02-25
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dc.identifier.citation.fl_str_mv SANTOS, Lucas Almeida. Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos. 2022. 93 f. Dissertação (Mestrado em Ciência e Engenharia de Materiais) - Universidade Federal de Sergipe, São Cristóvão, 2022.
dc.identifier.uri.fl_str_mv http://ri.ufs.br/jspui/handle/riufs/15863
identifier_str_mv SANTOS, Lucas Almeida. Propriedades de barreira, mecânicas e térmicas de blendas de biopoliamidas (610/1010) e seus nanocompósitos. 2022. 93 f. Dissertação (Mestrado em Ciência e Engenharia de Materiais) - Universidade Federal de Sergipe, São Cristóvão, 2022.
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