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PTT(聚对苯二甲酸丙二醇酯)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。目前世界PTT树脂生产能力40万t左右,产量约30万t。主要生产商是美国壳牌公司和美国杜邦公司,其生产绝对垄断,工艺技术处于世界领先地位。未来几年世界PTT潜在市场需求量可达100万t,其中
PTT (polytrimethylene terephthalate) 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. At present, the world PTT resin production capacity of about 400,000 t, the output of about 300,000 t. The main producers are the United States Shell Company and the United States DuPont, the absolute monopoly of its production, process technology in the world leader. The potential market demand for the world PTT in the next few years can reach 1 million t, of which,