PAEK high-temperature degradation producing black spots

Fenómeno del problema

Black spots and burnt odor appear on the product

Análisis de la causa

Processing temperature exceeds 400°C; the material stays in the barrel too long

Solución

Strictly control temperature ≤400°C; shorten residence time to ≤5 minutes

Conclusión clave

PAEK thermal degradation is as irreversible as PEEK

black spotsdegradationtemperature controlresidence time

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