含DOPO本质阻燃环氧树脂的燃烧性能、热力学性能研究  

Combustion and Thermodynamic Properties of Epoxy Composite Base on DOPO Intrinsic Flame Retarding System

作　　者：肖雄 叶文 许肖丽 XIAO Xiong;YE Wen;XU Xiao-li(State Key Laboratory of Polyolefins Catalyst and Shanghai Key Laboratory of Catalysis Technology for Polyolefins,Shanghai Engineering Research Center of Functional Flame Retardant Material,Shanghai 200062,China)

机构地区：[1]聚烯烃催化技术与高性能材料国家重点实验室上海市聚烯烃催化技术重点实验室上海功能阻燃材料工程技术研究中心,上海200062

出　　处：《塑料科技》2022年第3期37-42,共6页Plastics Science and Technology

基　　金：上海科技创新基地项目(19DZ2253700);上海市2020年度“科技创新行动计划”长三角科技联合攻关项目(20162420600)。

摘　　要：以9,10-二氢-9-氧-10-磷杂菲-10-氧化物(DOPO)为反应型阻燃剂,同时引入三聚氰胺氰尿酸盐(MCA)及三聚氰胺(MA),制备本质阻燃环氧树脂。研究阻燃体系对材料阻燃性能、热力学性能的影响。结果表明:当m(DOPO)∶m(MCA)∶m(MA)=1∶3∶0.5,EP/DOPO/3MCA/0.5MA复合材料垂直燃烧可以达到V-0级,并具有较好的热稳定性能和成炭性能。DOPO/3MCA/0.5MA体系使环氧树脂(EP)的热释放量显著下降。DOPO/3MCA/0.5MA的引入使EP材料的固化过程放热量降低。EP/DOPO/3MCA/0.5MA的玻璃化转变温度(T_(g))提升。DOPO/3MCA/0.5MA对EP材料的力学性能产生不利影响。EP/DOPO/3MCA/0.5MA具有典型的气相稀释效应及凝聚相成炭阻燃机理。Using 9, 10-dihydro-9-oxo-10-phosphaphenanthrene-10-oxide(DOPO) as reactive flame retardant, melamine cyanurate(MCA) and melamine(MA) were introduced to prepare intrinsic flame retardant epoxy resin. The effect of flame retardant system on the flame retardancy and thermodynamic properties of materials was studied. The results show that when m(DOPO)∶m(MCA)∶m(MA)=1∶3∶0.5, the vertical combustion of EP/DOPO/3MCA/0.5MA composite can reach V-0 grade, and has good thermal stability and charring performance. DOPO/3MCA/0.5MA system significantly decreases the heat release of epoxy resin(EP). The introduction of DOPO/3MCA/0.5MA reduces the heat release during the curing process of EP materials. The glass transition temperature(T_(g)) of EP/DOPO/3MCA/0.5MA increases. DOPO/3MCA/0.5MA has a negative impact on mechanical properties of EP materials. EP/DOPO/3MCA/0.5MA has typical gas phase dilution effect and condensed phase charring flame retardant mechanism.

关 键 词：DOPO 环氧树脂 本质阻燃 无卤阻燃剂 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]