Molding Process
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POE toughened PP temperature window narrow
Problem Phenomenon
POE/PP window only 15°C, 175-190°C
Cause Analysis
POE melting too high and close to PP degradation, window narrow
Solution
1) Low viscosity POE MFR>10; 2) POE side feeding, PP melts first; 3) Precision temperature control ±2°C
Key Takeaway
Narrow temperature window requires low viscosity POE, side feeding and precision temperature control
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