Poly Styrene Co Acrylonitrile
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Preparation and Characterization of Hollow Glass Microspheres- Reinforced Poly (acrylonitrile-co-butadiene-co-styrene) Composites
In this study, poly(acrylonitrile-co-butadiene-co-styrene)/hollow glass microspheres (ABS/HGM) composites were prepared by means of a twin-screw extruder. HGM were incorporated at different loadings of 2.5, 5.0, and 7.5 wt.% at the central extruder zone with different types of ABS. The morphological, physical, thermal, rheological and mechanical properties o
Mat. Res.. Publicado em: 17/09/2018
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2. Desenvolvimento de nanoblendas poliméricas PMMA/SAN / NANOBLENDS OF POLY (METHYL METHACRYLATE) AND POLY (STYRENE-CO-ACRYLONITRILE)
A principal motivação para a realização deste trabalho de mestrado consistiu na idéia de que a obtenção de nanoblendas poliméricas é fundamentalmente dependente da elevada interação entre as fases presentes na mistura. A estratégia adotada neste estudo baseou-se na utilização de dois polímeros que possuem uma janela de miscibilidade, o que per
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012
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3. Blendas de poli(metacrilato de metila) e do elastômero saturado poli(acrilonitrila-g-(etileno-co-propileno-co-dieno-g-estireno) obitdas por polimerização in situ / Blends of poly(methyl methacrylate) and the saturated elastomer poly(acrylonitrile-g-(ethylene-co-propylene-co-diene)-g-styrene) prepared by in situ polymerization
In this work, blends of the poly(methyl methacrylate), PMMA, and the poly[acrylonitrile-g-(ethylene-co-propylene-co-diene)-g-styrene], AES, were prepared. AES is a complex mixture of poly(styrene-co-acrylonitrile), SAN, and poly(ethylene-copropylene-co-diene), EPDM, and the graft copolymer EPDM-g-SAN. Blends PMMA-AES were obtained by polymerization in situ,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/03/2010
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4. Interfacial tension of PBT/SAN blends by the drop retraction method
The aim of this work was to evaluate the interfacial tension from the poly(butylene terephtalate) and poly(styrene-co-acrylonitrile) (PBT/SAN) interface region using the drop retraction method. SAN filaments were sandwiched between two PBT films; the whole system was heated up to 240 °C, in a hot stage coupled to an optical microscope. The rheological param
Materials Research. Publicado em: 2008-06
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5. Ternary blends of PPO/AES/PS : study of the miscibility, compatibility and photooxidative stability / Blendas ternarias PPO/AES/PS : estudo da miscibilidade, compatibilidade e estabilidade fotooxidativa
The aim of this work was to prepare and to evaluate the PPO/AES/PS ternary blends behavior with respect to miscibility, compatibility, mechanical properties and photochemical stability aspects, as well as to compare these properties to the PPO/HIPS blends. In this work, the PPO/AES/PS ternary blends were obtained from the melt mixture PS, polystyrene, PPO, p
Publicado em: 2006
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6. Microrheology of poly(butylene terephthalate) / poly(styrene-co-acrylonitrile) blends. / Estudos microrreológicos da blenda PBT/SAN.
This work was motivated by the need of a better understanding of the microrheological characteristics of polybutylene terephthalate, PBT, polymer blends, such as the matrix phase PBT and the styrene-acrylonitrile, SAN copolymer as dispersed phase. The main purpose of the microrheological studies carried out was to analyze the rheological behavior and the mor
Publicado em: 2006
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7. Estudo da miscibilidade e das propriedades mecânicas de blendas SAN/NBR
Aiming the study of miscibility and mechanical properties, blends of poli(styrene-coacrylonitrile) (SAN) with poli(butadiene-co-acrylonitrile) (NBR) rubbers were prepared by casting, co-precipitation and extrusion followed by injection, varying acrylonitrile (AN) contents from 32,7 to 45% (w/w) in NBR. The blends were prepared in the compositions: SAN/NBR 90
Publicado em: 2005
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8. Blendas de SAN/NBR: influência do teor de acrilonitrila da borracha nitrílica nas propriedades físico-química e mecânicas
Aiming the development of polymer materials with high toughness, poly(butadiene-coacrylonitrile) rubbers (NBRs), with acrylonitrile (AN) contents varying from 32,9 to 45,7%, were added to poly(styrene-co-acrylonitrile) (SAN) by casting, mini-extrusion and monoscrew extrusion followed by injection molding. Addition of NBR resulted in significant improvements
Publicado em: 2003
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9. Blendas de PMMA e AES : morfologia e propriedades mecanicas
In this work blends of the poly(methyl methacrylate), PMMA, and of the AES elastomer were prepared. AES is a elastomer obtained from grafting of the poly(styrene-co-acrylonitrile), SAN, on the poly(ethylene-co-propilene-2-etiliden- 5-norbonene), EPDM. The EPDM phase of the AES is immiscible and incompatible with PMMA, while the phase SAN is miscible one. The
Publicado em: 2002