Poly Phenylene Sulfide
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Study of crystallization behavior of poly(phenylene sulfide)
Poly(phenylene sulfide) (PPS) is an engineering thermoplastic polymer that presents high temperature resistance (glass transition temperature around 85 ºC and melting point at 285 ºC). These properties combined with its mechanical properties and its high chemical resistance allows its use in technological applications such as molding resins and as matrix f
Polímeros. Publicado em: 2006-06
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2. Influência das condições de processamento na morfologia e das propriedades mecânicas de sistemas poliméricos moldados por injeção e sua predição através de redes neurais artificiais.
The influence of the injection molding parameters on the morphology and mechanical properties of poly(phenylene sulfide), PPS, and of a 80/20(%wt) blend of PPS/block copolymer styrene-ethylene-butylene-styrene ,SEBS, were evaluated. The injection molding conditions were defined through an experimental design. The lower and upper limits of each variable were
Publicado em: 2004
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3. Estudo espectroeletroquímico de um copolímero alternado de PANI e PPS: PPSA-poli(sulfeto de fenileno-fenilenamina) / Study and spectroelectrochemical characterization of a derivative of poly(aniline) and poly(p-phenylene sulfide): Poly(phenylene sulfide - phenyleneamine)
Os polímeros condutores intrínsecos são materiais isolantes ou semicondutores que, quando submetidos a um processo de dopagem, passam a apresentar condutividade próxima à metálica. Dentre os polímeros condutores sintetizados mais estudados está a poli(anilina), (PANI), que apesar de ter sido sintetizada pela primeira vez há aproximadamente 150 anos,
Publicado em: 2002
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4. Propriedades elétricas e físico-químicos de blendas de poli (sulfeto de p-fenileno) - pps com um cristal líquido polimérico (LCP) / Electrical and physical chemistry properties of poli (p-phenylene sulfide) with a liquid crystal polymer
Poly (p-phenylene sulphide) (PPS) is an engineering thermoplastic, with high thermal and chemical resistance, and. with a growing industrial importance, due to its easy processability in the form of films, fiaments and injection molded articles. It also can be chemically doped and. therefore be a conductive polymer (σ = 10 S/cm, by doping with AsF5); ho
Publicado em: 1997
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5. Novos materiais para uso como diafragma em eletrolisadores de agua
Altemative polymeric materiaIs were evaluated to substitute asbestos tissues, which are used as diaphragm in water electrolysis. These materiaIs must be resistant to alkaline medium, temperature above 100°C and oxygen in molecular formo. They must also be porous, in a way to not decrease the conductivity of the electrolyte toa much and they must have mechan
Publicado em: 1994