聚对苯二甲酸丙二醇酯(PTT)是由对苯二甲酸(PTA)或对苯二甲酸二甲酯(DMT)与1,3-丙二醇(PDO)反应聚合而得的聚酯。由PTT树脂加工而成的合成纤维和工程塑料应用前景广阔。目前PTT主要作为纤维应用于服饰材料、地毯材料,少量用于工程塑料、薄膜材料等。未 Polytrimethylene terephthalate (PTT) is a polyester obtained by the reaction polymerization of terephthalic acid (PTA) or dimethyl terephthalate (DMT) with 1,3-propanediol (PDO). Synthetic fibers and engineering plastics made from PTT resins are promising. At present, PTT is mainly used as a fiber in apparel materials and carpet materials, and a small amount is used in engineering plastics and film materials. not