Material Analysis
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MP insufficient toughness brittle fracture
Problembeschreibung
MP product elongation at break <50%, brittle fracture without yielding
Ursachenanalyse
MP molecular weight low, toughness foundation insufficient; excessive crosslinking loses toughness; coarse crystallization increases brittleness
Lösung
1) select high molecular weight MP to improve toughness; 2) control crosslinking degree to avoid excess; 3) nucleating agent to refine crystallization and improve toughness
Wichtigste Erkenntnis
insufficient toughness is caused by low molecular weight and coarse crystallization; selecting high MW is key
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