Extrusion & Post
12 مشاهدة
EMA Delamination When Blended with Incompatible Resins
ظاهرة المشكلة
When EMA is blended with polar resins such as PA/ABS, the extrudate completely delaminates, mechanical properties extremely poor
تحليل الأسباب
The polarity difference between EMA and polar resins is large, compatibility is zero, interfacial adhesion extremely low, no compatibilizer used
الحل
1) Use EMA grafted compatibilizer EMA-g-MAH 2-5wt%; 2) Add 1-2wt% epoxy compatibilizer; 3) EMA addition <10wt% to keep the other resin as the continuous phase; 4) Twin-screw high-shear blending to disperse EMA <0.3μm
الخلاصة الأساسية
Blending with large polarity differences requires reactive compatibilizer to form chemical bonding at the interface to solve it
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!