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    • 6. 发明公开
    • 고내열성 폴리에틸렌테레프탈레이트 나노복합체 및 그제조방법
    • 具有高热稳定性的聚乙烯醚缩水甘油酯和制备纳米复合材料的方法
    • KR1020080061048A
    • 2008-07-02
    • KR1020060135814
    • 2006-12-28
    • 주식회사 효성
    • 김홍운방윤혁최수명
    • C08K5/54C08G63/183C08G63/88B82Y30/00
    • C08K5/54B82Y30/00C08G63/183C08G63/88C08J3/28C08K5/17C08K2201/011C08L67/03
    • A polyethylene terephthalate nanocomposite is provided to realize improved heat resistance as compared with a nanocomposite using demineralized nanoclay by using an amine-based POSS maintaining an organic moiety at high temperature and dispersed uniformly in the nanocomposite. A polyethylene terephthalate nanocomposite having high heat resistance comprises an amine-based polyhedral oligomeric silsesquioxane(POSS), C59H127NO12Si8, represented by the following formula 1, contains polyethylene terephthalate units in an amount of at least 85 mol%, and has an intrinsic viscosity of 0.50-0.70. In formula 1, R is isooctyl group or isobutyl group. The polyethylene terephthalate nanocomposite preferably comprises the POSS in an amount of 0.5, 0.7, 1.0 or 2.0 wt% based on the total weight.
    • 提供了一种聚对苯二甲酸乙二醇酯纳米复合材料,与使用软化纳米粘土的纳米复合材料相比,通过使用在高温下保持有机部分并均匀分散在纳米复合材料中的胺基POSS来实现改进的耐热性。 具有高耐热性的聚对苯二甲酸乙二醇酯纳米复合材料包括胺基多面体低聚倍半硅氧烷(POSS),由下式1表示的C 59 H 12 7 NO 12 Si 8含有至少85摩尔%的聚对苯二甲酸乙二醇酯单元,其特性粘度为0.50 -0.70。 在式1中,R是异辛基或异丁基。 聚对苯二甲酸乙二醇酯纳米复合材料优选包含基于总重量为0.5,0.7,1.0或2.0重量%的POSS。