Material Analysis
9 views
Insufficient EMA toughness with brittle fracture
Problem Phenomenon
EMA product elongation at break <50% with brittle fracture without yielding
Cause Analysis
EMA molecular weight too low with insufficient toughness basis; excessive crosslinking losing toughness; coarse crystallization increasing brittleness
Solution
1) Select high molecular weight EMA to improve toughness; 2) Control crosslinking degree to avoid excess; 3) Nucleating agent to refine crystallization and improve toughness
Key Takeaway
Insufficient toughness is caused by low molecular weight and coarse crystallization; selecting high MW is key
Was this helpful?
0 people found this helpful
Thank you for your feedback!