Material Analysis
11 조회수
Fast thermal aging of PU
문제 현상
After aging at 80°C for 7 days, PU product mechanical properties decrease >30%
원인 분석
PU molecular chains break and degrade under thermo-oxidation; antioxidant system imperfect, insufficient protection
해결 방법
1) Improve antioxidant system 1010+168+DSTDP; 2) Select high molecular weight grade; 3) Add metal deactivator 0.05wt%
핵심 요약
Thermal aging is caused by thermo-oxidation; improving the antioxidant system is key
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