摘要
采用硅烷偶联剂对纳米二氧化硅(SiO2)进行表面改性,制备有机改性纳米二氧化硅(O-SiO2),并与环氧树脂(EP)合成EP/O-SiO2纳米复合材料。利用TG、UL-94垂直燃烧测试和锥形量热测试(CCT)等对EP复合材料的力学性能和阻燃性能进行研究。结果表明:一定量的O-SiO2可以提高复合材料的弹性模量,O-SiO2的添加量为10%时,复合材料的弹性模量最大;O-SiO2的加入可以改善EP的阻燃性能,添加量为20%时,复合材料的阻燃效果最好。
Silane coupling agent was used to modify the surface of nano-silica(SiO2) to prepare organic modified nanosilica(O-SiO2), and EP/O-SiO2 nanocomposites were synthesized with epoxy resin(EP) and O-SiO2. The mechanical properties and flame retardancy of EP composites were studied by TG, UL-94 vertical combustion test and cone calorimetry(CCT). The results show that a certain amount of O-SiO2 can improve the elastic modulus of composites and the elastic modulus of composites is maximum when the content of O-SiO2 is 10%. The addition of O-SiO2 can improve the flame retardancy of EP. When the addition amount is 20%, the flame retardant effect of the composite is the best.
作者
王奎
李乾波
王冲
黄伟江
田琴
严伟
WANG Kui;LI Qian-bo;WANG Chong;HUANG Wei-jiang;TIAN Qin;Yan Wei(School of Chemistry and Materials,Guiyang University,Guiyang 550005,China;Guizhou Polytechnic of Construction,Guiyang 551400,China)
出处
《塑料科技》
CAS
北大核心
2021年第8期43-46,共4页
Plastics Science and Technology
基金
贵阳市科技局贵阳学院专项资金(GYU-KY-[2021])
贵州省教育厅创新群体项目(黔教合KY字[2020]024)
贵州省“千”层次创新型人才项目(黔人领发[2020]04)。
关键词
纳米二氧化硅
环氧树脂
阻燃性能
力学性能
Silica nanoparticles
Epoxy resin
Flame retardancy
Mechanical properties
作者简介
联系人:严伟,lrasyw@163.com。
