Material Analysis
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Insufficient Tensile Strength of CMC
Problem Phenomenon
Tensile strength of CMC products is 15-20% lower than the standard value
Cause Analysis
CMC molecular weight is low and strength foundation is insufficient; filler interface is poor and does not play a reinforcing role; excessive orientation makes it strong longitudinally and weak transversely
Solution
1)Select high-molecular-weight CMC grade; 2)Treat filler with coupling agent to improve interface; 3)Reduce orientation to reduce longitudinal-transverse differences
Key Takeaway
Insufficient tensile strength is caused by molecular weight and poor interface; selecting a high MW grade is the key
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