Parres, F.; Crespo Amorós, JE. (2011). Degradation of high-impact polystyrene with processing and its recovery via the addition of styrene-butadiene rubber and styrene-ethylene-butylene-styrene block copolymer. Journal of Applied Polymer Science. 121(1):574-581. doi:10.1002/app.33625
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/34987
Title:
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Degradation of high-impact polystyrene with processing and its recovery via the addition of styrene-butadiene rubber and styrene-ethylene-butylene-styrene block copolymer
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Author:
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Parres, F.
Crespo Amorós, José Enrique
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials
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Issued date:
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Abstract:
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This work was divided into three parts. First, high-impact polystyrene (HIPS) was submitted to a series of extrusion cycles with the objective of evaluating the consequent variations in its thermal and mechanical properties. ...[+]
This work was divided into three parts. First, high-impact polystyrene (HIPS) was submitted to a series of extrusion cycles with the objective of evaluating the consequent variations in its thermal and mechanical properties. The results showed slight variations in both the thermal and mechanical properties of HIPS. Second, degraded HIPS/styrene¿ethylene¿butylene¿styrene (SEBS) blends and degraded HIPS/styrene¿butadiene rubber (SBR) blends were prepared to evaluate the influence of the elastomeric concentration on the polymer's properties. The incorporation of SEBS or SBR allowed the recovery of the initial properties shown by virgin HIPS. Finally, blends of degraded HIPS with 2 wt % SEBS or SBR were extruded through four cycles. The mechanical properties remained constant with 2% SEBS added, whereas the mixtures of HIPS with 2% SBR showed an increase in the tensile strength as the number of extrusion cycles increased. The Vicat softening temperature decreased in both cases. The use of differential scanning calorimetry permitted the observation of differences in the crosslinking reactions of different samples as a function of the number of extrusion cycles. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
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Subjects:
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Additives
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Polystyrene
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Recycling
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Copyrigths:
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Cerrado |
Source:
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Journal of Applied Polymer Science. (issn:
0021-8995
)
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DOI:
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10.1002/app.33625
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Publisher:
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Wiley-Blackwell
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Publisher version:
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http://onlinelibrary.wiley.com/doi/10.1002/app.33625/abstract
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Project ID:
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Vice Directorate of Research, Development, and Innovation of Polytechnic University of Valencia
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Thanks:
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The authors thank the Vice Directorate of Research, Development, and Innovation of Polytechnic University of Valencia for its help with the project "Ternary Systems Research Applied to Polymeric Materials for the Upgrading ...[+]
The authors thank the Vice Directorate of Research, Development, and Innovation of Polytechnic University of Valencia for its help with the project "Ternary Systems Research Applied to Polymeric Materials for the Upgrading of Waste Styrene" (reference no. 20091056) within the framework of First Projects of Research (PAID 06-09).
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Type:
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Artículo
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