Crastin HR5330HFS BK591 可耐水性PBT料
聚对苯二甲酸丁二醇酯,又名聚对苯二甲酸四次甲基酯。英文名;Polybutyleneterephthalate。简称PBT PBTP或PTMT,它是对苯甲酸与1,4-丁二醇的缩聚物。可由酯交换法或直接脂化法经缩聚而制得,今后的发展趋势为直接酯化法生产。PBT和PET一起被称为热塑性聚酯。
Polybutylene terephthalate, also known as polytrimethylene terephthalate. English name; Polybutyleneterephthalate。 Referred to as PBT, pbtp or ptmt, it is a polycondensation of p-benzoic acid and 1,4-butanediol. It can be prepared by transesterification or direct esterification through polycondensation. The development trend in the future is direct esterification. Together with pet, PBT is called thermoplastic polyester.