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以2-羧乙基苯基次磷酸(CEPPA)为第三单体,通过原位聚合法制备磷系阻燃共聚酯(FRPET)/磷酸盐玻璃(P-glass)纳米复合材料,并通过元素分析、DSC、TGA、极限氧指数、垂直燃烧等方法对其结构和性能进行了研究。结果表明:在原位聚合过程中,P-glass能在基体内呈纳米尺寸均匀分散,并与阻燃共聚酯分子链发生相互作用。P-glass的原位添加有利于提高材料的耐燃性并抑制其熔融滴落现象,特性黏度达0.64dL/g、FRPET/P-glass磷含量为8.194mg/g、Pglass含量1%以上时,FRPET/P-glass垂直燃烧性能级别达到FV-0级,极限氧指数达30.9%。
A series of phosphorescent flame retardant copolyester (FRPET) / phosphate glass (P-glass) nanocomposites were prepared by in-situ polymerization using 2-carboxyethylphenylphosphinic acid (CEPPA) Elemental analysis, DSC, TGA, limiting oxygen index, vertical combustion and other methods of its structure and performance were studied. The results show that P-glass can be uniformly dispersed in the nanosize matrix in the in-situ polymerization process and interact with flame-retardant copolyester molecular chains. The in-situ addition of P-glass helps to improve the flame resistance of the material and restrain its melting and dripping phenomenon. The intrinsic viscosity reaches 0.64 dL / g, the FRPET / P-glass phosphorus content is 8.194 mg / g and the Pglass content is 1% FRPET / P-glass vertical combustion performance level reached FV-0 level, limit oxygen index of 30.9%.