Thermo-mechanical variability of post-industrial and post-consumer recyclate PC-ABS

Polymer Testing

Kai Kallio¹  Giada Lo Re²  Ratchawit Janewithayapun³  Eliott Orzan³  Renaud Gutkin⁴ 

[1]Corresponding author. Safety Centre, Volvo Car Corporation, SE-405 31, Gothenburg, Sweden.

[2]Department of Industrial and Materials Science, Division of Material and Computational Mechanics, Chalmers University of Technology, Gothenburg, 41296, Sweden

[3]Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 41296, Sweden

[4]Safety Centre, Volvo Car Corporation, SE-405 31, Gothenburg, Sweden

关键词: Recycled;    Polymer;    PC-ABS;    Mechanical properties;    Thermal properties;    Variation;   

DOI  :  

来源: DOAJ

【 摘 要 】

The aim of this work is to investigate the performance variability of post-industrial (PIR) and post-consumer recycled (PCR) polycarbonate acrylonitrile-butadiene-styrene (PC-ABS). In addition, necessary testing methodology for understanding polymer variation in recycled polymers are established. The thermal expansion behaviour of all tested material were found to be similar and FT-IR testing revealed no conclusive evidence of oxidative degradation. Both PIR and PCR exhibited similar levels of variation in mechanical properties compared with prime samples, with the exception of elongation at break and quasi-static impact behaviour. In these two tests, prime polymers showed lower variation and superior performance to both recycled polymers. The presence of defects and changes in molecular weight were determined to be leading causes of the reduced deformability. Our work contributes by identifying key areas where recycled PC-ABS show good potential as replacements for neat PC-ABS. Furthermore, the work demonstrates methods for material testing against performance criteria to pave way for effective replacement of neat PC-ABS with its recycled counterparts.

【 授权许可】

Unknown