Material Analysis
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POE elongation at break low
Fenómeno do problema
POE product elongation at break <100%, below 200% requirement
Análise das causas
POE molecular weight low, chains short, entanglement insufficient; excessive orientation, transverse elongation extremely low; excessive crosslinking restricts chain slippage
Solução
1) Select high molecular weight POE to increase entanglement density; 2) Reduce orientation, lower injection speed; 3) Control crosslinking degree to avoid excess
Conclusão principal
Low elongation at break is caused by low molecular weight and orientation; selecting high MW and reducing orientation are key
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