Production & Quality
13 مشاهدة
EEA performance degradation with repeated processing
ظاهرة المشكلة
EEA after 3-4 times of recycling and reprocessing shows tensile strength decline of 25-30%
تحليل الأسباب
Molecular chains break and degrade under repeated high temperature and shear; antioxidant exhausted in multiple processing; cumulative effect of thermo-mechanical degradation
الحل
1) Recycled material proportion not exceeding 20-30%; 2) Supplement 0.1-0.2wt% antioxidant at each re-extrusion; 3) Reduce processing temperature by 5-10°C; 4) Reduce screw speed to reduce shear
الخلاصة الأساسية
Performance degradation from multiple processing is caused by thermo-mechanical degradation; limiting recycled material and supplementing antioxidant are the key
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!