Material Analysis
13 مشاهدة
Poor PVA chemical resistance
ظاهرة المشكلة
After immersion in acid, alkali or solvent, PVA product mechanical properties decrease >30%
تحليل الأسباب
PVA has high affinity for specific chemicals and is eroded and swelled; PVA molecular chains attacked by chemicals and broken
الحل
1) Select chemical-resistant grade; 2) Slight crosslinking to reduce swelling; 3) Product surface coating protection; 4) Add chemical stabilizer
الخلاصة الأساسية
Poor chemical resistance is caused by PVA chemical affinity; selecting chemical-resistant grade and coating are the key
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!