陶瓷填料对环氧树脂阻燃复合材料性能的影响  

Effects of Ceramic Fillers on the Properties of Flame-Retardant Epoxy Resin Composites

作　　者：周亮 姜凤阳 思芳 李笑然 高灿 周尧 李泽将 王俊勃 刘江南 ZHOU Liang;JIANG Fengyang;SI Fang;LI Xiaoran;GAO Can;ZHOU Yao;LI Zejiang;WANG Junbo;LIU Jiangnan(College of Materials Engineering,Xi'an University of Engineering,Xi'an 710048,China;Beijing Beida Science and Technology Park Limited,Beijing 100089,China;Guangzhou Radius Power Copper Co.,Ltd.,Guangzhou 510460,China;Shaanxi Dingxin Huizhi Functional Material Science and Technology Co.,Ltd.,Xi'an 710048,China)

机构地区：[1]西安工程大学材料工程学院,陕西西安710048 [2]北京北大科技园有限公司,北京100089 [3]广州市半径电力铜材有限公司,广东广州510460 [4]陕西鼎新汇智功能材料科技有限公司,陕西西安710048

出　　处：《塑料工业》2024年第12期154-159,167,共7页China Plastics Industry

基　　金：陕西省技术创新引导计划(2024QCY-KXJ-021);陕西省科技厅三项改革项目(2024ZC-YYDP-17);西安市高校院所人才服务企业项目(2023GXFW0021)。

摘　　要：为了提升聚合物的阻燃性,以环氧树脂(EP)为基体,不同质量分数的陶瓷化阻燃剂(CFR)为填料,制备EP阻燃复合材料。利用极限氧指数(LOI)、垂直燃烧(UL94)和热重分析(TG)等方法研究了该阻燃复合材料的燃烧性能和热稳定性能。结果表明,CFR可提升EP复合材料的热稳定性,当CFR质量分数为35%时,EP复合材料的初始热分解温度可达377.1℃,最大热分解温度可达435.8℃,复合材料的残炭率明显提高。添加CFR可改善复合材料的阻燃性,当CFR质量分数为55%时,UL94燃烧等级可达V-0级,其LOI可达29.5%。SEM结果表明,随着CFR质量分数的增加,乙撑双硬酰酯胺(EBS)对颗粒的分散作用更为明显,复合材料煅烧后所产生的炭层更连续致密,有效地隔绝了火焰和氧气。硅烷偶联剂(KH560)改性的陶瓷化阻燃剂与EP相容性较好,EP阻燃复合材料具有良好的阻燃性和耐火性。To enhance the flame retardancy of polymers,EP flame-retardant composites were prepared by using epoxy resin(EP)as the matrix and ceramicized flame retardants(CFR)with different mass fractions as fillers.The combustion properties and thermal stability properties of the flame-retardant composites were investigated via limiting oxygen index(LOI),vertical burning(UL94)and thermogravimetric analysis(TG).The results show that CFR could enhance the thermal stability of EP composites.When the mass fraction of CFR is 35%,the initial thermal decomposition temperature of EP composite could reach 377.1℃,the maximum thermal decomposition temperature could reach 435.8℃,and the residual carbon rate of the composite is significantly increased.The addition of CFR could improve the flame retardancy of the composites.When the mass fraction of CFR is 55%,the UL94 combustion grade could reach V-0 grade,and its LOI value could reach 29.5%.SEM results show that,with the increase of the CFR mass fraction,the dispersion function of ethylene bis(stearoyl)amine(EBS)on the particles is more obvious.The carbon layers produced after the composite calcination are more continuous and dense,which could effectively isolate the flame and oxygen.The ceramicized flame retardants modified by silane coupling agent(KH560)are more compatible with EP,and the EP flame-retardant composites have good flame retardancy and fire resistance.

关 键 词：复合材料 环氧树脂 阻燃性 热稳定性 陶瓷化阻燃剂 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]