Material Analysis
11 조회수
Large molecular weight decrease after PLA mechanical recycling
문제 현상
After mechanical recycling, the intrinsic viscosity of PLA decreases by >20%.
원인 분석
The combination of thermal and mechanical degradation causes molecular chain breakage and a large decrease in molecular weight.
해결 방법
Reduce the recycling processing temperature; add a chain extender to restore the molecular weight.
핵심 요약
The molecular weight decay of PLA recycling is a reuse challenge.
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