环三磷腈和三嗪衍生物协同阻燃对聚酯性能的影响

为提高聚对苯二甲酸乙二醇酯（PET） 的阻燃性能，合成了阻燃剂（4?烯丙氧羰基苯氧基） 环三磷腈（HACP）和三（4?烯丙氧羰基苯氧基）?1，3，5?三嗪（TATZ），并与PET通过熔融共混制备了PET/HACP/TATZ复合材料。采用极限氧指数仪、垂直燃烧仪、微型量热仪、热失重分析测试仪、差示扫描量热仪和拉伸试验机等测试仪器对复合材料的阻燃性能、热稳定性能、力学性能和成炭性能进行测试与分析。结果表明：HACP和TATZ的协同阻燃性不仅提高了PET材料的阻燃效率，而且降低了对基材PET力学性能的负面影响，复合材料的极限氧指数值达到32.4%，垂直燃烧性能达到V-0 级，热释放速率较纯PET下降了30.9%。

Synergistic effect between cyclotriphosphazene and triazinederivatives on flame retardancy of poly( ethylene terethalate)

The fire retardants hexakis ( allyl 4-hydroxybenzoate ) cyclotriphosphazene ( HACP ) and tri(allyl 4-hydroxybenzoate)-1,3,5-triazine (TATZ) were successfully synthesized to improve the flame retardancy of poly ( ethylene terethalate ) ( PET ) , and PET/HACP/TATZ composites were prepared by melt-blending method. The flame retardancy, thermal stability, mechanical property and char forming characteristics of the products were investigated by Limiting Oxygen Index ( LOI) , vertical burning test, micro calorimeter, thermogravimetric analyzer, differential scanning calorimeter and tensile tester. The results suggest that the synergistic flame retardant effect between HACP and TATZ improves the flame retardancy of PET, and also reduces the negative effect on mechanical property of PET. The LOI value improves to 324% and reaches rating V-0 in the UL 94 test, and the value of heat release rate decreases to 30. 9% in comparison with that of pure PET.