Material Analysis
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Insufficient EMA tensile strength
Fenómeno del problema
EMA product tensile strength 15-20% below standard value
Análisis de la causa
EMA molecular weight too low with insufficient strength basis; poor filler interface without reinforcing effect; excessive orientation with strong longitudinal and weak transverse
Solución
1) Select high molecular weight EMA grade; 2) Treat filler with coupling agent to improve interface; 3) Reduce orientation to reduce longitudinal-transverse difference
Conclusión clave
Insufficient tensile strength is caused by molecular weight and poor interface; selecting high MW grade is key
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