Material Analysis
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MP Low Flexural Modulus
Problem Phenomenon
Flexural modulus of MP products <20% of design value
Cause Analysis
MP is soft with low modulus; insufficient filler addition or poor interface failing to provide reinforcement; low crystallinity
Solution
1) Add 10-15wt% rigid filler to increase modulus; 2) Nucleating agent to increase crystallinity; 3) Select high-modulus grades
Key Takeaway
Low flexural modulus is caused by soft material and insufficient filler; adding rigid filler is key
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