Material Analysis
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EEA Insufficient Tensile Strength
Problem Phenomenon
EEA product tensile strength is 15-20% below the standard value
Cause Analysis
EEA molecular weight low, strength foundation insufficient; filler interface poor, no reinforcing effect; excessive orientation, strong longitudinally and weak transversely
Solution
1) Select high-molecular-weight EEA grades; 2) Treat filler with coupling agent to improve the interface; 3) Reduce orientation to reduce longitudinal-transverse differences
Key Takeaway
Insufficient tensile strength is caused by molecular weight and poor interface; selecting high MW grades is key
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