Material Analysis
13 مشاهدة
MP low elongation at break
ظاهرة المشكلة
MP product elongation at break <100%, below the 200% requirement
تحليل الأسباب
MP molecular weight low, chains short, entanglement insufficient; excessive orientation, transverse elongation extremely low; excessive crosslinking limits chain slippage
الحل
1) select high molecular weight MP to increase entanglement density; 2) reduce orientation, lower injection speed; 3) control crosslinking degree to avoid excess
الخلاصة الأساسية
low elongation at break is caused by low molecular weight and orientation; selecting high MW and reducing orientation are key
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