Material Drying
7 visualizações
PETG regrind performance degradation
Fenómeno do problema
After adding PETG crushed regrind, the impact strength and transparency of new products decrease significantly.
Análise das causas
The regrind undergoes multiple thermal histories and molecular chains degrade, crushing produces dust, and increased moisture absorption increases hydrolytic degradation.
Solução
Control the regrind ratio ≤30%; use after full drying; add antioxidant and stabilizer during pelletizing.
Conclusão principal
PETG reuse requires controlling the ratio and performing stabilization treatment.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!