Material Analysis
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Fast EAA thermal aging
Problem Phenomenon
EAA products after aging at 80°C for 7 days show mechanical property decline >30%
Cause Analysis
EAA molecular chains break and degrade under thermal oxidation; antioxidant system incomplete with insufficient protection
Solution
1) Improve the antioxidant system 1010+168+DSTDP; 2) Select 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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