Material Analysis
14 visualizações
PBT Toughening Modification Route
Fenómeno do problema
Pure PBT has insufficient toughness and snap-fits break, while after toughening modification the fluidity decreases and filling becomes difficult
Análise das causas
The addition of toughening agents inevitably leads to decreased fluidity; polymerization modification introduces flexible chain segments, and blending modification using reactive compatibilizers such as POE-g-GMA can take both interfacial bonding and toughness improvement into account
Solução
①For blending modification select the reactive compatibilizer POE-g-GMA; ②Select toughening agents with little effect on fluidity; ③Re-verify snap-fit parts according to the toughened grade
Conclusão principal
PBT toughening is a trade-off between fluidity and toughness; reactive compatibilization technology is the mainstream route to take both into account; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!