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发明公开
CN107974058A 一种基于回收PET的复合聚酯材料及其制备方法 无效 - 驳回

一种基于回收PET的复合聚酯材料及其制备方法
摘要：
本发明提供了一种基于回收PET的复合聚酯材料，其由以下原料制备得到：100重量份的回收PET，20～40重量份的玻璃纤维，1～3重量份的均苯四甲酸二酐，0.2～0.5重量份的含氟环氧化合物，0.3～0.8重量份的抗水解剂，1～3重量份的成核剂，5～10重量份的增韧剂，2～5重量份的热稳定剂，1～3重量份的润滑剂。本申请还提供了所述复合聚酯材料的制备方法。本申请通过以均苯四甲酸二酐作为主扩链剂、含氟环氧化合物作为辅助扩链剂，同时由于抗水解剂、玻璃纤维、增韧剂、热稳定剂与其它助剂的复配，使复合聚酯材料具有较好的耐湿热抗酸碱特性与力学性能。
摘要（英）：

The invention provides a compound polyester material based on recycled PET. The compound polyester material is prepared from the following raw materials of 100 parts by weight of the recycled PET, 20to 40 parts by weight of glass fiber, 1 to 3 parts by weight of pyromellitic dianhydride, 0.2 to 0.5 part by weight of fluorine-contained epoxy compound, 0.3 to 0.8 part by weight of hydrolytic-resistant agent, 1 to 3 parts by weight of nucleating agent, 5 to 10 parts by weight of flexibilizer, 2 to 5 parts by weight of heat stabilizer and 1 to 3 parts by weight of lubricant. The invention furtherprovides a preparation method of the compound polyester material. According to the compound polyester material disclosed by the invention, the pyromellitic dianhydride is utilized as a main chain extender, and the fluorine-contained epoxy compound is utilized as an auxiliary chain extender; meanwhile, as the hydrolytic-resistant agent, the glass fiber, the flexibilizer and the heat stabilizer arecompounded with other additives, the compound polyester material has the characteristics of better damp, heat, acid and alkali resistance and mechanical property.

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