马来酸酐等离子体功能化CNTs对环氧树脂力学性能的影响  

Influence of maleic anhydride plasma functionalized carbon nanotube on mechanical properties of epoxy resin

作　　者：陶丽[1,2] 贾润萍[2] 王科军[1] 柳忠全[3] 

机构地区：[1]赣南师范学院化学化工学院,江西省赣州市341000 [2]上海应用技术学院材料科学与工程学院,上海市200235 [3]兰州大学化学化工学院,甘肃省兰州市730000

出　　处：《合成树脂及塑料》2012年第3期18-22,共5页China Synthetic Resin and Plastics

基　　金：上海市自然科学基金项目(09ZR1431200);上海市教委项目(10YZ182);上海市重点学科项目(J51504);国家自然科学基金项目(21106083)

摘　　要：用等离子体诱导马来酸酐(MAH)修饰碳纳米管(p-CNTs),使其表面高度功能化,并将其引入环氧树脂(EP)固化体系,制备EP/p-CNTs纳米复合材料。考察了功能化参数对EP/p-CNTs纳米复合材料力学性能的影响。经p-CNTs掺杂的复合材料力学性能显著提高,在优化的等离子体功能化条件(功率30 W、时间20 min、温度120℃)下制备w(p-CNTs)为0.3%的复合材料,其拉伸强度、拉伸弹性模量、拉伸断裂应变及简支梁缺口冲击强度较纯EP分别提高了83%,484%,208%,101%。Carbon nanotubes （CNTs） were modified with maleic anhydride via plasma induced-graft polyme- rization in order to obtain high surface-functionalized CNTs （p-CNTs）. The modified p-CNTs were introduced into epoxy resin （EP） curing system to prepare EP/p-CNTs composites. The influence of functionalization parameters on mechanical properties of the composites was investigated. The mechanical properties of the composites doped with p-CNTs improved greatly. Under the optimized plasma functionalization conditions （power 30 W, treatment time 20 min and temperature 120℃）, the tensile strength, tensile modulus of elasticity, tensile strain at break and notched Charpy impact strength of the resultant EP/p-CNTs containing 0.3% p-CNTs in mass content increased by 83%, 484%, 208% and 101%, respectively, in comparison with pure EP.

关 键 词：环氧树脂 等离子体 碳纳米管 复合材料 性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]