描述
导电防静电PBT2
建筑装饰行业
交通运输行业、广告行业
电气、化工机械、汽车行业
导电抗静电PBT2
产品详细信息
导电抗静电PBT
，主要区别在于聚合中使用的二醇。与PET相比，原料丁二醇价格较高，生产规模小，熔点低，力学性能略弱于PET。PBT在商业上似乎无法与PET竞争。然而，由于使用了直链四碳醇，聚合物链的柔韧性增强，结晶速度加快。导电抗静电PBT，在PBT工程塑料的加工过程中，这种性能缩短了注射成型的周期，并降低了模具毛坯的产量。改进成型过程中良好的结晶性能使产品具有更好的稳定性，从而获得更高的经济效益。此外，四碳醇的使用也使PBT纤维具有更好的弹性和柔软性，并很好地用于纤维和牙刷。PBT是对苯二甲酸二甲酯或对苯二甲酸与丁二醇熔融缩聚的产物。通过控制聚合反应时间和真空度，可以获得相对分子质量为17000-40000的产品，如果通过进一步固相缩聚反应可以获得更高的相对分子质量。PBT的玻璃化转变温度（24℃）接近室温，低于PET（76℃），接近聚酰胺（40℃）；熔点低于PET，接近聚酰胺；结晶速率是PET的15倍，与聚酰胺66相似。PBT和PET在基本物理性能上的差异使它们在加工行为和应用方面有所不同。PET在后处理过程中的低结晶和高取向行为适用于纤维和薄膜，而PBT的快速结晶适用于工程塑料
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Transportation Industry, Advertisement Industry
Electric & Electrical, Chemical Machinery,
Automobile Industry
Conductive Anti-static PBT2
Product Details
Conductive anti-static PBT
PBT and ethylene terephthalate are both semi-crystalline thermoplastic polyesters, and the main difference lies in the diols used in the polymerization. Compared with PET, the higher raw material butanediol price, small production scale, low melting point, and mechanical properties are slightly weaker than PET. It seems that PBT cannot compete with PET commercially. However, due to the use of straight-chain four-carbon alcohols, the flexibility of the polymer chain is strengthened, which shows a rapid crystallization rate. Conductive Anti-static PBT，This performance shortens the cycle time of injection molding and reduces the yield of mold blanks during the processing of PBT engineering plastics. improve. The good crystallization performance in the molding process makes the product have better stability, so as to obtain higher economic benefits. In addition, the use of four-carbon alcohol also makes PBT fibers have better elasticity and softness, and is well used in fibers and toothbrushes. PBT is a product of melt polycondensation of dimethyl terephthalate or terephthalic acid and butanediol. By controlling the polymerization reaction time and the degree of vacuum, a product with a relative molecular mass of 17000-40000 can be obtained, if higher The relative molecular mass can be obtained by further solid-phase polycondensation reaction. The glass transition temperature (24°C) of PBT is close to room temperature, lower than PET (76°C), and close to polyamide (40°C); the melting point is lower than PET and close to polyamide; the crystallization rate is 15 times that of PET, which is similar to polyamide 66 . The difference in basic physical properties between PBT and PET makes them different in terms of processing behavior and application. The low crystallization and high orientation behavior of PET in the post-processing process is suitable for fibers and films, while PBT with fast crystallization is suitable for Engineering plastics.
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