Material Analysis
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MP fast thermal aging
Problem Phenomenon
MP products after aging at 80°C for 7 days, mechanical properties decline >30%
Cause Analysis
MP molecular chains break and degrade under thermal oxidation; antioxidant system incomplete, protection insufficient
Solution
1) improve the antioxidant system 1010+168+DSTDP; 2) select a high molecular weight grade; 3) add metal deactivator 0.05wt%
Key Takeaway
thermal aging is caused by thermal oxidation; improving the antioxidant system is key
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