Material Analysis
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DSTDP low flexural modulus
Problem Phenomenon
DSTDP product flexural modulus <20% of the design value
Cause Analysis
DSTDP soft, modulus low; filler addition insufficient or interface poor, not playing a reinforcing role; crystallinity on the low side
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 material softness and insufficient filler; adding rigid filler is key
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