MWCNTs/PMMA复合材料制备及力学性能研究  

Fabrication and mechanical properties of MWCNTs /PMMA composite materials

作　　者：陈苗苗[1] 丁俭[2] 梁春永[2] 李海鹏[2] 刘东菲[1] 李长义[1] 

机构地区：[1]天津医科大学口腔医院,硕士生天津300070 [2]河北工业大学材料科学与工程学院,讲师天津300130

出　　处：《口腔颌面修复学杂志》2008年第4期286-288,共3页Chinese Journal of Prosthodontics

基　　金：河北省科学技术研究与发展指导计划(项目编号:07215136)

摘　　要：目的:制备多壁纳米碳管(MWCNTs),并将其用于聚甲基丙烯酸甲酯(PMMA)增强,研究其力学性能变化。方法:用化学气相沉积(Chemical Vapor Deposition,CVD)法制备MWCNTs,将1mgMWCNTs均匀分散于15mL牙托水中,制备MWCNTs/PMMA复合材料,测试复合材料的力学性能,观察断面形貌。结果:制备出MWCNTs均匀分散的MWCNTs/PMMA复合材料,复合材料的拉伸强度、延伸率较对照组有显著提高(P<0.05),弯曲强度与对照组相比无明显差异(P>0.05)。复合材料断面可见碳管与树脂之间结合良好,MWCNTs均匀弥散分布在树脂基体中。结论:应用CVD法制备MWCNTs用于增强基托树脂,可有效改善其力学性能。Objective： To fabricate multi-walled carbon nanotubes （MWCNTs） for the reinforcement of polymethyl methaerylate （PMMA） and study its mechanical properties. Methods： The chemical vapor deposition （CVD） technique was used to fabricate MWCNTs. MWCNTs（I mg） were evenly distributed into methyl methacrylate （15mL）to fabricate MWC- NTs/PMMA composite materials. The mechanical properties were tested and its fracture morphology was studied. Results： MWCNTs/PMMA composite with absolutely diffused MWCNTs was fabricated. Both tensile strength and elongation of the material were obviously increased than the control group （P〈0.05）. The bending strength had no obviously difference with the control group （P〉0.05）. The carbon nanotubes and matrices were well-integrated and MWCNTs were distributed evenly into resin matrices. Conclusion： The mechanical properties of base resins strengthened by CVD technique fabricated MWCNTs can be effectively improved.

关 键 词：多壁纳米碳管 义齿基托树脂 复合材料 抗拉强度 弯曲强度 

分 类 号：R783[医药卫生—口腔医学]