Material Analysis
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DSTDP poor chemical resistance
Problem Phenomenon
DSTDP product mechanical properties decrease >30% after immersion in acid/alkali solvents
Cause Analysis
DSTDP has high affinity for specific chemicals, eroded and swollen; DSTDP molecular chains attacked by chemicals and broken
Solution
1) Select chemical-resistant grades; 2) slight crosslinking to reduce swelling; 3) product surface coating protection; 4) add chemical stabilizer
Key Takeaway
Poor chemical resistance is caused by DSTDP chemical affinity; selecting chemical-resistant grades and coating are key
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