Processing Machinery
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PAEK high-temperature degradation producing black spots
Problem Phenomenon
Black spots and burnt odor appear on the product
Cause Analysis
Processing temperature exceeds 400°C; the material stays in the barrel too long
Solution
Strictly control temperature ≤400°C; shorten residence time to ≤5 minutes
Key Takeaway
PAEK thermal degradation is as irreversible as PEEK
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