Material Analysis
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MP insufficient tensile strength
Problem Phenomenon
MP product tensile strength 15-20% below the standard value
Cause Analysis
MP molecular weight low, strength foundation insufficient; filler interface poor, no reinforcing effect; excessive orientation, strong longitudinally weak transversely
Solution
1) select a high molecular weight MP grade; 2) treat filler with coupling agent to improve the interface; 3) reduce orientation to reduce the longitudinal-transverse difference
Key Takeaway
insufficient tensile strength is caused by molecular weight and poor interface; selecting a high MW grade is key
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