Extrusion & Post 8 views

EMA internal delamination cracking

Problem Phenomenon

EMA products delaminate internally, cracking along interfaces

Cause Analysis

Poor interfacial bonding between EMA and incompatible fillers or blend components; cooling shrinkage differences causing interlayer stress

Solution

1) Use compatibilizer to improve interfacial bonding; 2) Uniform cooling to reduce interlayer stress; 3) Reduce addition of incompatible components

Key Takeaway

Internal delamination is caused by poor interface and shrinkage differences; compatibilizer and uniform cooling are key

EMA internal delamination interfacial bonding compatibilizer uniform cooling

Was this helpful?

0 people found this helpful