Material Analysis
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EAA hydrolytic aging
Problembeschreibung
EAA products in hot and humid environments show mechanical property decline >25%
Ursachenanalyse
EAA contains polar groups that hydrolyze and break chains under hot and humid conditions; ester bonds/amide bonds etc. are sensitive to water
Lösung
1) Select grade with low polar group content to reduce hydrolysis tendency; 2) Add anti-hydrolysis stabilizer; 3) Coat the product surface with a waterproof layer
Wichtigste Erkenntnis
Hydrolytic aging is caused by polar group sensitivity to water; selecting low polarity grade is key
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