High Impact Polystyrene
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Influência do envelhecimento termo-oxidativo nas propriedades mecânicas e de amarelamento de blendas de poliestireno com borracha reciclada de estireno-butadieno (SBR)
RESUMO Este trabalho teve como objetivo avaliar o envelhecimento termo-oxidativo, nas propriedades mecânicas e de índice de amarelamento (YI), de blendas de poliestireno com borracha reciclada (SBRr), compatibilizadas. As blendas foram preparadas, inicialmente, em uma extrusora de rosca dupla corrotacional e, posteriormente, os grânulos extrudados foram m
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Selecting chemicals for separation of ABS and HIPS in WEEE by froth flotation
Abstract The feasibility of using common chemicals to separate plastics from waste electrical and electronic equipment (WEEE) by froth flotation is investigated. Plastic waste is one of the WEEE polluters and a separation is necessary to recycle it. The most common plastics in electronic industries are acrylonitrile-butadiene-styrene (ABS) and high impact po
Polímeros. Publicado em: 10/06/2019
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3. Toughening of polystyrene using styrene-butadiene rubber (SBRr) waste from the shoe industry
Abstract The vulcanized rubber waste from the shoe industry causes environmental damage when it is incinerated or inappropriately discarded, turning this into a problem of major concern. Therefore, this study had as the main objective the Polystyrene (PS) toughening using different contents of white vulcanized styrene-butadiene rubber (SBRr) waste produced i
REM, Int. Eng. J.. Publicado em: 2018-04
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4. Solvent Effect on the Morphology of Lamellar Nanocomposites Based on HIPS
In this study, hybrid nanocomposites based on HIPS, high-impact polystyrene, were prepared in chloroform and in a 1:1 mixture of toluene and chloroform varying the quantity of organophilic montmorillonite. The morphology of the hybrid materials was investigated by X-ray diffraction (XRD) and proton relaxometry, determined in a low-field 1H nuclear magnetic r
Mat. Res.. Publicado em: 2015-02
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5. Mejoramiento de las propiedades de tensión en WPC de LDPE: HIPS/fibra natural mediante entrecruzamiento con DCP
Straight Retamo Fiber (telinemonspessulana) was mixed in a polymer matrix formed by low density polyethylene (LDPE) and high impact polystyrene (HIPS) in a 70:30 ratio. The natural fiber was subjected to size reduction between 1700 and 850 µm; surface treatment mercerization was performed; the moisture content was 0.17%. The thermo gravimetric analysis (TGA
Polímeros. Publicado em: 09/05/2014
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6. Influence of reaction operation conditions on the final properties of high impact polystyrene (hips)
The main objective of the present work is to analyze the influence of some important operational reaction parameters (agitation speed, polybutadiene - PB - content and initiator concentration) on the final properties of High Impact Polystyrene (HIPS) produced in bulk. Variable effects are analyzed both qualitatively and quantitatively with the help of a frac
Braz. J. Chem. Eng.. Publicado em: 2013-09
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7. Evaluation of the effect of the incorporation of rubber tire waste particles on the properties of PP, HIPS and PP/HIPS matrices
In recent years, the consumption of plastics has been increasing and as consequence, the waste generated has also increased. Rubber tire (RT) waste is another residue which causes significant problems to society. In view of the considerable amounts of RT waste generated, this study aimed to evaluate the influence of the incorporation of RT particles into pos
Polímeros. Publicado em: 16/04/2013
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8. Production and evaluation of recycled polymers from açaí fibers
The possibility of recycling and the favorable mechanical properties of the products have encouraged the study and production of thermoplastic composites from natural fibrous waste. Açaí (cabbage palm) fiber, which is removed from the seed, has been slightly investigated, as compared to what is already known about the fruit pulp. In this study, the influen
Materials Research. Publicado em: 2010-06
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9. Surface activation of high impact polystyrene and polypropylene by nitrogen and atmospheric air dc plasmas / Ativação superficial de poliestireno de alto impacto e polipropileno por plasmas dc de ar atmosférico e nitrogênio
Among the treatment options for polymers surface modifications, the plasma technology has showed a wide potential due to its efficiency and low waste generation. Conventional chemical treatments by means of sulfochromic solutions and other solvents present risks to factory workers and additional costs with residues disposal.In this study, polypropylene and h
Publicado em: 2010
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10. Aspectos morfológicos e relação estrutura-propriedades de poliestireno de alto impacto / Morphologic aspects and structure-properties relations of high impact polystyrene
A tenacificação da matriz vítrea de poliestireno (PS) pela adição de borracha polibutadiênica, que tem como conseqüência um aumento de sua resistência ao impacto, origina um polímero com características singulares, o Poliestireno de Alto Impacto (HIPS). Durante a polimerização in situ de estireno em uma solução de borracha, ocorre a formação
Publicado em: 2010
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11. Estudo da tenacificação do poliestireno com elastômeros butadiênicos / Polystyrene toughening by butadiene elastomers
This Dissertation describes a study about the toughening of polystyrene with different types of polybutadiene (high-cis, low-cis and styrene - butadiene diblock or triblock copolymers). These materials (High Impact of PolyStyrene HIPS) were performed by melt blending. The mechanical properties (hardness, tensile strength and impact strength); morphology and
Publicado em: 2009
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12. Aspectos e impactos ambientais associados ao processo de injeção da blenda ppo/psai através do inventário do ciclo de vida
In view of that some environmental problems are associated to the industrial production, it becomes necessary to work and to apply concepts for the sustainability. Spite of complex system its possible to accomplish an analysis for the sustainable development through method that support to obtain data and interpretation of the results. Life Cycle Assessment c
Publicado em: 2007