PBT（德国巴斯夫）专业品牌总代理商

PBT为乳白色半透明到不透明、结晶型热塑性聚酯。具有高耐热性、韧性、耐疲劳性，自润滑、低摩擦系数，耐候性、吸水率低，仅为0.1%，在潮湿环境中仍保持各种物性（包括电性能），电绝缘性，但体积电阻、介电损耗大。耐热水、碱类、酸类、油类、但易受卤化烃侵蚀，耐水解性差，低温下可迅速结晶，成型性良好。缺点是缺口冲击强度低，成型收缩率大 。故大部分采用玻璃纤维增强或无机填充改性，其拉伸强度、弯曲强度可提高一倍以上，热变形温度也大幅提高。可以在140℃下长期工作，玻纤增强后制品纵、横向收缩率不一致，易使制品发生翘曲。

巴斯夫PBT Ultradur同系列型号介绍

Ultradur B 2550 is anunfilled, easy flow PBT offering good heat resistance.
Ultradur B 4030 G6 30% glass-fibrereinforced Impact-modified injection-moulding grade for technical parts.
Ultradur B 4300 G10 Injection moldinggrade with 50 % glass fibers for very rigid technical parts.
Ultradur B 4300 G2 is an easy flowinginjection molding PBT with 10% glass fiber reinforcement for rigid.
Ultradur B 4300 G4 is an easy flowinginjection molding PBT with 20% glass fiber reinforcement for rigid.
Ultradur B 4300 G6 is an easy flowinginjection molding PBT with 30% glass fiber reinforcement for rigid.
Ultradur B 4406 G4 is an injectionmolding grade with 20 % glass fibers for parts requiring enhanced fireresistance.
Ultradur B 4406 G6 Injection moldinggrade with 30 % glass fibers for parts requiring enhanced fire resistance.
Ultradur B 4500 is a general-purposeinjection molding PBT grade for high precision.
Ultradur B 4520 is a medium viscosity,rapidly freezing injection molding grade.

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