Thermo-mechanical characterization of post-consumer recycled high impact polystyrene from disposable cups: Influence of the number of processing cycles
Publish place: Journal of Computational and Applied Research in Mechanical Engineering، Vol: 10، Issue: 2
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JCARME-10-2_011
تاریخ نمایه سازی: 11 خرداد 1400
Abstract:
In this study, the effect of six successive recycling cycles of the recycled material including high impact polystyrene disposable cups on tensile properties, glass transition temperature, flexural, impact strength tests and fluidity were studied. It has been found that after increasing recycling, the molar mass and the viscosity decrease (a slight increase of melt flow index) until the fifth cycle; the maximum yielding stress decreased due to material brittleness.The impact strength has only been relatively influenced by a ۱۷% increase, whereas the elongation at break and the Young’s modulus dropped with reprocessing cycles. Glass transition temperature has undergone a remarkable decrease: It dropped in a consistent way by the sixth cycle we measured a drop of almost ۱۱°C was compared to the virgin material, with a notable increase in flexural modulus and hardness. The resulted curves show the reliability of this material to be used after a specific number of processing in several industrial applications.
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Authors
Hanan EL BHILAT
National Higher School of Electricity and Mechanics Laboratory of Control and Mechanical Characterization of Materials and Structures, Casablanca, Morocco
Khalid El Had
Higher Institute of Maritims Studies, Laboratory of Mechanics ,Casablanca,Morocco.
Houda SALMI
National Higher School of Electricity and Mechanics Laboratory of Control and Mechanical Characterization of Materials and Structures, Casablanca, Morocco
Abdelilah Hachim
Higher Institute of Maritims Studies, Laboratory of Mechanics ,Casablanca,Morocco.
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