Injection Molding
15 visualizaciones
Yellowing in PCTG '2079851475616104452
Fenómeno del problema
The product color changes from transparent to yellow.
Análisis de la causa
The processing temperature is too high, causing thermal degradation, the residence time is too long, the raw material is insufficiently dried, and too much regrind is used.
Solución
Control the temperature ≤250°C; shorten the residence time; fully dry; control the regrind ≤25%.
Conclusión clave
PCTG yellowing is a signal of degradation.
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!