Effect of Reprocessing and Accelerated Weathering on ABS Properties |
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Authors: | J M Pérez J L Vilas J M Laza S Arnáiz F Mijangos E Bilbao L M León |
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Institution: | 1.Departamento de Química Física, Facultad de Ciencia y Tecnología,Universidad del País Vasco (UPV/EHU),Bilbao,Spain;2.Departamento de Reciclado y Valorización,Fundación Gaiker,Zamudio,Spain;3.Departamento de Ingeniería Química y Medio Ambiente,Escuela Universitaria de Ingeniería Técnica Minera, Universidad del País Vasco (UPV/EHU),Barakaldo,Spain |
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Abstract: | The feasibility of reprocessing has been investigated as a possible alternative for acrylonitrile–butadiene–styrene terpolymer
(ABS) recycling. Up to 10 reprocessing cycles have been performed by both extrusion and injection techniques and their effect
on thermal and mechanical properties have been studied. Moreover, the effect of the combined reprocessing and accelerated
weathering has been analyzed. Measurements collected after each molding cycle indicated virtually complete retention of thermal
properties. The same behaviour has been observed from accelerated weathering tests. With respect to the mechanical properties,
neither the flow index nor the tensile strength were affected by the number of reprocessing cycles though the impact strength
decreased slightly. However, the studies based on the accelerated weathering show that there is an important influence of
the number of reprocessing cycles on the tensile strength. |
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