Recycling of engineering plastics from waste electrical and electronic equipments: Influence of virgin polycarbonate and impact modifier on the final performance of blends

2014 ◽  
Vol 32 (5) ◽  
pp. 379-388 ◽  
Author(s):  
Ramesh V ◽  
Manoranjan Biswal ◽  
Smita Mohanty ◽  
Sanjay K Nayak
Keyword(s):  
Acrylonitrile Butadiene Styrene ◽  
High Impact ◽  
Morphological Properties ◽  
Material Recycling ◽  
Engineering Plastics ◽  
Acrylic Ester ◽  
Blending Process ◽  
Impact Modifier ◽  
Poly Acrylonitrile ◽  
Butadiene Styrene

This study is focused on the recovery and recycling of plastics waste, primarily polycarbonate, poly(acrylonitrile-butadiene-styrene) and high impact polystyrene, from end-of-life waste electrical and electronic equipments. Recycling of used polycarbonate, acrylonitrile-butadiene-styrene, polycarbonate/acrylonitrile-butadiene-styrene and acrylonitrile-butadiene-styrene/high impact polystrene material was carried out using material recycling through a melt blending process. An optimized blend composition was formulated to achieve desired properties from different plastics present in the waste electrical and electronic equipments. The toughness of blended plastics was improved with the addition of 10 wt% of virgin polycarbonate and impact modifier (ethylene-acrylic ester-glycidyl methacrylate). The mechanical, thermal, dynamic-mechanical and morphological properties of recycled blend were investigated. Improved properties of blended plastics indicate better miscibility in the presence of a compatibilizer suitable for high-end application.

Effect of SEBS-g-MAH addition on the mechanical, rheological, and morphological properties of polycarbonate/acrylonitrile–butadiene–styrene blends

2018 ◽  
Vol 50 (7) ◽  
pp. 611-633 ◽  
Author(s):  
Ismahane Debbah ◽  
Rachida Krache ◽  
Nora Aranburu ◽  
Mercedes Fernández ◽  
Agustin Etxeberria
Keyword(s):  
Acrylonitrile Butadiene Styrene ◽  
Complex Viscosity ◽  
Morphological Properties ◽  
Screw Extruder ◽  
Elongation At Break ◽  
Melt Compounding ◽  
Twin Screw ◽  
Poly Acrylonitrile ◽  
Insight Into ◽  
Butadiene Styrene

In this research, the effect of maleic anhydride–grafted styrene–ethylene/butylene–styrene (SEBS-g-MAH) compatibilizer on different properties of polycarbonate and poly(acrylonitrile–butadiene–styrene) (PC/ABS) blends was investigated. For this purpose, blends of PC and ABS at different ratios, without and with varying concentrations of compatibilizer, were prepared by melt compounding in a co-rotating twin-screw extruder followed by injection molding. The effectiveness of the compatibilizer was investigated by studying the microstructure and the mechanical, thermal, and rheological properties of the blends. It was found that the addition of the compatibilizer increases tensile strength, modulus, elongation at break, impact strength, complex viscosity, and thermal stability. This effect was noted at a loading of 1 wt% of compatibilizer, where enhanced interactions between the PC and ABS can be seen. Rheological methods, based on dynamic viscoelastic tests, allowed us to distinguish between emulsion-like and co-continuous morphologies and allowed an insight into the effect of the compatibilizer on the interfacial tension.

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