Processing Machinery
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MP insufficient mixing
Problem Phenomenon
after MP compounded with filler/additives, dispersion uneven, local agglomeration
Cause Analysis
screw mixing section length insufficient; kneading block number insufficient; improper feeding method, additives not fully contacting MP
Solution
1) increase screw mixing section length to 3-4D; 2) increase kneading block number; 3) feed additives through the side feed port later to increase mixing time
Key Takeaway
insufficient mixing is caused by improper screw design; increasing the mixing section is key
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