Material Analysis
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EEA Low Elongation at Break
Problembeschreibung
EEA product elongation at break <100%, below the 200% requirement
Ursachenanalyse
EEA molecular weight low, chains short, entanglement insufficient; excessive orientation, transverse elongation extremely low; excessive crosslinking limits chain slippage
Lösung
1) Select high-molecular-weight EEA to increase entanglement density; 2) Reduce orientation by lowering injection speed; 3) Control crosslinking degree to avoid excess
Wichtigste Erkenntnis
Low elongation at break is caused by low molecular weight and orientation; selecting high MW and reducing orientation are key
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