Injection Molding
14 visualizações
Yellowing in PCTG '2079851475616104452
Fenómeno do problema
The product color changes from transparent to yellow.
Análise das causas
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.
Solução
Control the temperature ≤250°C; shorten the residence time; fully dry; control the regrind ≤25%.
Conclusão principal
PCTG yellowing is a signal of degradation.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!