Material Analysis
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Poor EAA chemical resistance
Problem Phenomenon
EAA products after immersion in acid, alkali or solvent show mechanical property decline >30%
Cause Analysis
EAA has high affinity for specific chemicals and is eroded and swelled; EAA molecular chains attacked by chemicals and broken
Solution
1) Select chemical-resistant grade; 2) Slight crosslinking to reduce swelling; 3) Protect the product surface with coating; 4) Add chemical stabilizer
Key Takeaway
Poor chemical resistance is caused by EAA chemical affinity; selecting chemical-resistant grade and coating is key
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