碳纳米管径对MWCNTs/PMMA复合物耐磨损性的影响  

Effect of Carbon Nanotube Diameter on Wear Resistance of MWCNTs/PMMA Composites

作　　者：李传军[1] 宫世云[1] 戴亚杰[1] 陆以杉[1] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《哈尔滨理工大学学报》2009年第5期12-15,共4页Journal of Harbin University of Science and Technology

基　　金：黑龙江省自然科学基金(B200506);黑龙江省博士后流动站资助项目(LRB05-098)

摘　　要：研究了具有四种不同碳纳米管径的MWCNTs/PMMA复合物系的耐磨损性.对MWC-NTs进行酸化处理,采用原位本体聚合方法制备复合板,用砝码质量法评价复合板的耐磨损性.研究结果表明:混酸处理后,MWCNTs在MMA中的分散稳定性得到明显提高,L-MWNTs-4060在PM-MA中分散得最好,L-MWNTs-60100分散得最差;L-MWNTs-4060型碳纳米管复合板的耐磨损性最好,L-MWNTs-60100型的最差;而L-MWNTs-1030和L-MWNTs-2040型的介于其两者中间.Effect of the carbon nanotube diameter on wear resistance of MWCNTs/PMMA composite system with four diameters was studied in this paper. Mixed-acids treatment was employed to modify MWCNTs, in-situ bulk polymerization was used to prepare the composites, and wear resistance of the composites was evaluated by using the set of weights. Results show that： The dispersion stability of MWCNTs modified with the mixed acids in MMA is enhanced greatly; L-MWNTs-4060 has the best dispersion in the matrix PMMA, while L-MWNTs-60100 the worst; L-MWNTs4060/PMMA composites has the best wear resistance, while L-MWNTs-60100 the worst, and L-MWNTs-1030 and L-MWNTs-2040 in the middle.

关 键 词：原位聚合 多壁碳纳米管 聚甲基丙烯酸甲酯 耐磨损性 

分 类 号：TQ050.4[化学工程]