Registro fonte: Estudo do comportamento tribológico de compósitos a base de poliéster insaturado

Estudo do comportamento tribológico de compósitos a base de poliéster insaturado

Polymeric composites are materials capable to combine mechanical and tribological features, which are not found in traditional engineering materials. The present work intends to discuss the tribological behavior of composites with polyester matrix reinforced by two kinds of particulate materials (gr...

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Autor principal:	Sakuma, Valquiria Yurie
Formato:	Dissertação
Idioma:	Português
Publicado em:	Universidade Tecnológica Federal do Paraná 2019
Assuntos:	Poliesteres - Propriedades mecânicas Tribologia Atrito Grafita Termoplásticos Desgaste mecânico Superfícies (Tecnologia) Interferometria Engenharia mecânica Polyesters - Mechanical properties Tribology Friction Graphite Thermoplastics Mechanical wear Surfaces (Technology) Interferometry Mechanical engineering CNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS::POLIMEROS, APLICACOES Engenharia Mecânica
Acesso em linha:	http://repositorio.utfpr.edu.br/jspui/handle/1/4243
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id	riut-1-4243
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spelling	riut-1-42432019-07-26T06:00:41Z Estudo do comportamento tribológico de compósitos a base de poliéster insaturado Study of the tribological behavior of unsaturated polyester composites Sakuma, Valquiria Yurie Silva, Carlos Henrique da http://lattes.cnpq.br/6218847264452522 Cruz, Carlos Marcus Gomes da Silva http://lattes.cnpq.br/7457232056030189 Silva, Carlos Henrique da Cousseau, Tiago Vale, João Luiz do Scandian, Cherlio Poliesteres - Propriedades mecânicas Tribologia Atrito Grafita Termoplásticos Desgaste mecânico Superfícies (Tecnologia) Interferometria Engenharia mecânica Polyesters - Mechanical properties Tribology Friction Graphite Thermoplastics Mechanical wear Surfaces (Technology) Interferometry Mechanical engineering CNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS::POLIMEROS, APLICACOES Engenharia Mecânica Polymeric composites are materials capable to combine mechanical and tribological features, which are not found in traditional engineering materials. The present work intends to discuss the tribological behavior of composites with polyester matrix reinforced by two kinds of particulate materials (graphite and PEEK). The methodology for the composites confection was developed and composites with 3, 6 and 12% of graphite and PEEK were manufactured. With the produced material, tribological tests were performed to evaluate the influence of presence and the amount of addition material in polyester tribological features. This composites tribological behaviors were analyzed through the application of tests as scratch, drying, with Rockwell C penetrators. The friction behavior was evaluated as a function of the normal load applied, speed and the material type. Surface analysis were performed through techniques of white light interferometry, scanning electron microscopy and FTIR. From tribological test results, it was able to evaluate the composite tribological behavior and the acting wearing mechanism. It was observed that the main wearing mechanisms were plastic deformation and micro scratches abrasion. A very little amount of wear particles was also observed, but there was no formation of protective tribofilm. For all the materials, the steady state period was reached near 2 mm and the friction rate showed more oscillation for PEEK composites, influenced by material particles. The load presented more influence, both in the friction value and the wear mechanisms. In general, it can be concluded that composites with 3% of particle show better friction results. And that the variation of the tests parameters had little influence on the type of wear micromechanism. Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Compósitos poliméricos são materiais que podem combinar características mecânicas e tribológicas que não são encontradas em materiais de engenharia tradicionais. O presente trabalho discute o comportamento tribológico de compósitos com matriz de poliéster reforçados com dois tipos de materiais particulados (grafite e PEEK). A metodologia para a confecção dos compósitos foi desenvolvida em uma parceria entre os laboratórios de tribologia e de química da UTFPR. e compósitos com 3, 6 e 12% de grafite e PEEK foram fabricados. Com o material produzido foram realizados ensaios tribológico para avaliar a influência da presença e quantidade do material de adição nas características tribológicas do poliéster insaturado. O comportamento tribológico destes compósitos foram analisados mediante a realização de ensaio de riscamento, a seco, com penetrador Rockwell C. O coeficiente de atrito foi avaliado em função da força normal aplicada, da velocidade e do tipo de material. Realizaram-se análises das superfícies, através de técnicas de interferometria de luz branca, microscopia eletrônica de varredura e FTIR. Com os resultados dos ensaios tribológicos, foi possível avaliar tanto o comportamento tribológico do compósito quanto o tipo de mecanismo de desgaste atuante. Observaram-se que os mecanismos de desgaste predominantes foram adesivos e abrasivos. Observaram-se também partículas de desgaste, mas não houve a formação de tribofilme protetor. De maneira geral pode-se concluir que compósitos com 3% de partícula apresentam melhores resultados de atrito. E que a variação dosparâmetros teve pouca influência no tipo de micromecanismo de desgaste atuante. 2019-07-25T20:28:52Z 2019-07-25T20:28:52Z 2019-02-21 masterThesis SAKUMA, Valquiria Yurie. Estudo do comportamento tribológico de compósitos a base de poliéster insaturado. 2019. 155 f. Dissertação (Mestrado em Engenharia Mecânica e de Materiais) - Universidade Tecnológica Federal do Paraná, Curitiba, 2019. http://repositorio.utfpr.edu.br/jspui/handle/1/4243 por openAccess application/pdf Universidade Tecnológica Federal do Paraná Curitiba Brasil Programa de Pós-Graduação em Engenharia Mecânica e de Materiais UTFPR
institution	Universidade Tecnológica Federal do Paraná
collection	RIUT
language	Português
topic	Poliesteres - Propriedades mecânicas Tribologia Atrito Grafita Termoplásticos Desgaste mecânico Superfícies (Tecnologia) Interferometria Engenharia mecânica Polyesters - Mechanical properties Tribology Friction Graphite Thermoplastics Mechanical wear Surfaces (Technology) Interferometry Mechanical engineering CNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS::POLIMEROS, APLICACOES Engenharia Mecânica
spellingShingle	Poliesteres - Propriedades mecânicas Tribologia Atrito Grafita Termoplásticos Desgaste mecânico Superfícies (Tecnologia) Interferometria Engenharia mecânica Polyesters - Mechanical properties Tribology Friction Graphite Thermoplastics Mechanical wear Surfaces (Technology) Interferometry Mechanical engineering CNPQ::ENGENHARIAS::ENGENHARIA DE MATERIAIS E METALURGICA::MATERIAIS NAO METALICOS::POLIMEROS, APLICACOES Engenharia Mecânica Sakuma, Valquiria Yurie Estudo do comportamento tribológico de compósitos a base de poliéster insaturado
description	Polymeric composites are materials capable to combine mechanical and tribological features, which are not found in traditional engineering materials. The present work intends to discuss the tribological behavior of composites with polyester matrix reinforced by two kinds of particulate materials (graphite and PEEK). The methodology for the composites confection was developed and composites with 3, 6 and 12% of graphite and PEEK were manufactured. With the produced material, tribological tests were performed to evaluate the influence of presence and the amount of addition material in polyester tribological features. This composites tribological behaviors were analyzed through the application of tests as scratch, drying, with Rockwell C penetrators. The friction behavior was evaluated as a function of the normal load applied, speed and the material type. Surface analysis were performed through techniques of white light interferometry, scanning electron microscopy and FTIR. From tribological test results, it was able to evaluate the composite tribological behavior and the acting wearing mechanism. It was observed that the main wearing mechanisms were plastic deformation and micro scratches abrasion. A very little amount of wear particles was also observed, but there was no formation of protective tribofilm. For all the materials, the steady state period was reached near 2 mm and the friction rate showed more oscillation for PEEK composites, influenced by material particles. The load presented more influence, both in the friction value and the wear mechanisms. In general, it can be concluded that composites with 3% of particle show better friction results. And that the variation of the tests parameters had little influence on the type of wear micromechanism.
format	Dissertação
author	Sakuma, Valquiria Yurie
author_sort	Sakuma, Valquiria Yurie
title	Estudo do comportamento tribológico de compósitos a base de poliéster insaturado
title_short	Estudo do comportamento tribológico de compósitos a base de poliéster insaturado
title_full	Estudo do comportamento tribológico de compósitos a base de poliéster insaturado
title_fullStr	Estudo do comportamento tribológico de compósitos a base de poliéster insaturado
title_full_unstemmed	Estudo do comportamento tribológico de compósitos a base de poliéster insaturado
title_sort	estudo do comportamento tribológico de compósitos a base de poliéster insaturado
publisher	Universidade Tecnológica Federal do Paraná
publishDate	2019
citation	SAKUMA, Valquiria Yurie. Estudo do comportamento tribológico de compósitos a base de poliéster insaturado. 2019. 155 f. Dissertação (Mestrado em Engenharia Mecânica e de Materiais) - Universidade Tecnológica Federal do Paraná, Curitiba, 2019.
url	http://repositorio.utfpr.edu.br/jspui/handle/1/4243
_version_	1805315486803558400
score	10,814766

Estudo do comportamento tribológico de compósitos a base de poliéster insaturado

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