Production & Quality
13 مشاهدة
EVOH Stress Cracking
ظاهرة المشكلة
EVOH products crack in <100h under stress + chemicals
تحليل الأسباب
Under stress, EVOH molecular chains are attacked by chemicals at an accelerated rate; environmental stress cracking is a typical failure mode of polyolefins
الحل
1) Reduce product internal stress by annealing; 2) Select high molecular weight EVOH to improve ESC resistance; 3) Avoid contact with aggressive chemicals
الخلاصة الأساسية
Stress cracking is caused by stress-accelerated chemical attack; annealing and high MW are key
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!