Production & Quality
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DSTDP stress cracking
Problem Phenomenon
DSTDP product cracks under stress + chemical action in <100h
Cause Analysis
Under stress, DSTDP molecular chains are attacked accelerated by chemicals; environmental stress cracking is a typical failure mode of polyolefins
Solution
1) Reduce product internal stress, annealing treatment; 2) select high molecular weight DSTDP to improve ESC resistance; 3) avoid contact with aggressive chemicals
Key Takeaway
Stress cracking is caused by stress-accelerated chemical attack; annealing and high MW are key
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