Injection Molding
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Effect of heat history accumulation on PCTG
Problem Phenomenon
PCTG quality gradually decreases after multiple '2079851475616104452 and pelletizing.
Cause Analysis
Cumulative residence time causes molecular weight reduction and transparency decrease.
Solution
Reduce the number of regrind uses; supplement stabilizers; control melt temperature.
Key Takeaway
PCTG heat history accumulation is the focus of recycled material quality management.
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