功能型核壳微球对环氧树脂燃烧性能和力学性能的影响  

Effect of Functional Core-Shell Microspheres on Flame Retardance and Mechanical Properties of Epoxy

作　　者：邢云亮[1] 李云涛[2,1,3] 赵春霞[2,1,3] 何达[1] 

机构地区：[1]西南石油大学材料科学与工程学院,四川成都610500 [2]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [3]西南石油大学新能源研究中心,四川成都610500

出　　处：《高分子材料科学与工程》2015年第1期57-61,共5页Polymer Materials Science & Engineering

基　　金：西南石油大学校级青年科研创新团队(2013XJZT005);四川省教育厅面上项目(11ZB021);西南石油大学青年科技基金(2012XJZ036)

摘　　要：采用原位聚合法制备聚磷酸铵(APP)-聚苯乙烯(PSt)核壳微球(CSP),并研究了CSP对环氧树脂(EP)阻燃及力学性能的影响。扫描电镜和透射电镜测试结果证实CSP为粒径0.7~1.1μm规整微球,具有明显核壳界面。将CSP引入EP中制备阻燃复合材料。当CSP引入量为15%时,材料具有最佳阻燃效果,热释放速率峰值由1163.1kW/m2降低到337.2kW/m2。热重测试结果表明,引入CSP后EP的初始分解温度降低,促进高温成炭量增加。力学性能测试结果显示,CSP的引入可提高EP拉伸强度。The functionalized ammonium polyphosphate(APP)/polystyrene(PSt)core-shell microspheres(CSP)were prepared by in-situ suspension polymerization.The results of transmission electron microscopy(TEM)and scanning electron microscope(SEM)demonstrate that CSP has obvious core-shell structure with diameter around 0.7~1.1μm.Flame-retardant epoxy resins were prepared by adding CSP into polymer matrix.The material has the best flame-retardant effect and char forming properties with 15% CSP added.The peak heat release rate is reduced from 1163.1kW/m2 to 337.2kW/m2.TGA test shows that CSP could reduce the initial decomposition temperature of epoxy resin(EP),and promote charring at high temperature.Mechanics performance testing shows that CSP could increase the tensile strength of EP.

关 键 词：核壳微球 聚磷酸铵 聚苯乙烯 阻燃 环氧树脂 

分 类 号：O633.13[理学—高分子化学]