Extrusion & Post
2 Aufrufe
POE toughened PP directionality obvious
Problembeschreibung
POE/PP longitudinal-transverse impact difference 2 times
Ursachenanalyse
POE dispersed phase is stretched and oriented into long strips during injection instead of spheres
Lösung
1) Lower injection speed to reduce orientation; 2) Mold temperature 50-60°C; 3) Multi-point gates to reduce unidirectional flow; 4) Nucleating agent to refine grains
Wichtigste Erkenntnis
Directionality difference is caused by POE orientation; reducing speed and multi-point gates are key
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