Polyethylene glycol terephthalate composition as well as preparation method and application thereof

The invention discloses a polyethylene glycol terephthalate composition as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The polyethylene glycol terephthalate with specific intrinsic viscosity and terminal carboxyl group content is matched with the filler, so that not only can the high toughness of the polyethylene glycol terephthalate composition be effectively improved, but also the boiling resistance of the polyethylene glycol terephthalate composition is considered; the polyethylene glycol terephthalate composition provided by the invention can meet the requirements of a drop test, and can be used for products with high toughness requirements and good boiling resistance through a water boiling test and a dish washing machine test. 本申请公开了一种聚对苯二甲酸乙二醇酯组合物及其制备方法和应用，属于高分子材料技术领域。本申请通过特定的特性粘度和端羧基含量的聚对苯二甲酸乙二醇酯，并且搭配填料，不仅可以有效提升聚对苯二甲酸乙二醇酯组合物的高韧性，同时兼顾了聚对苯二甲酸乙二醇酯组合物的耐水煮性能；本申请所述的聚对苯二甲酸乙二醇酯组合物可以满足跌落测试要求，且通过水煮测试和洗碗机测试，可用于韧性要求高和耐水煮性能佳的产品。