Comparison of Flame-retardancy Property and Mechanism between a Phosphate Ester and a Phosphoramine Flame-retardants

作     者：QIN Shiqian YANG Zhiyi ZHANG Shuai ZHANG Zhiye WANG Xinlong YANG Xiushan LUO Tao YANG Lin 秦仕千;YANG Zhiyi;ZHANG Shuai;ZHANG Zhiye;WANG Xinlong;YANG Xiushan;LUO Tao;杨林

作者机构：School of Chemical EngineeringSichuan UniversityChengdu 610065China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2021年第36卷第1期

页      面：148-156页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Funded by the National Key Research and Development Program of China(No.2016YFD0200404) the Sichuan Science and Technology Program(No.2018RZ0145) the National“Double First-Rate”Strategic Plan of Sichuan University,China(No.2030704401004) 

主　　题：flame-retardant phosphoramine thermogravimetric analysis polycarbonates TG-IR 

摘      要：A halogen-free flame-retardant (hydroquinone bis (N,N’-diarylphosphoramidate),4N-HDP) containing phosphorus-nitrogen was *** structure was characterized by infrared spectroscopy (IR),nuclear magnetic resonance (^(1)H-NMR and^(31)P-NMR).Thermogravimetric analysis (TG),limiting oxygen index (LOI),UL-94 vertical burning test (UL-94),thermogravimetric-infrared instrument (TG-IR) and scanning electron microscopy (SEM) were used to compare the flame-retarding performance and mechanism of hydroquinone bis (diphenyl phosphate) (HDP) and ***,IR and TG-IR were used for comparative analysis,indicating that both HDP and 4N-HDP are flame-retardants,and the gas phase and condensed phase act *** the pyrolysis process,it is divided into two steps:the first step is the breakage of large molecules to small molecules;the second step is the gasification and carbonization of small molecules,and eventually produces phosphate ester and non-flammable *** the comparison of various results,it could be found that 4N-HDP has better flame-retarding performance compared to HDP in the composite with polycarbonate (PC).