Material Analysis
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DSTDP low elongation at break
Problembeschreibung
DSTDP product elongation at break <100%, below the 200% requirement
Ursachenanalyse
DSTDP molecular weight on the low side, chains short, entanglement insufficient; excessive orientation, transverse elongation extremely low; excessive crosslinking restricting chain slippage
Lösung
1) Select high molecular weight DSTDP to increase entanglement density; 2) reduce orientation, lower 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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