PMMA/定向碳纳米管复合材料导电与导热性能的研究  

Study on Electrical and Thermal Properties of PMMA/Aligned Carbon Nanotubes Composites

作　　者：徐化明[1] 李聃[1] 梁吉[1] 

机构地区：[1]清华大学机械工程系,北京100084

出　　处：《无机化学学报》2005年第9期1353-1356,共4页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金资助项目(No.10332020)

摘　　要：Methyl Methacrylate(MMA) has been filled in the apertures of aligned carbon nanotubes(ACNTs). Then PMMA/ACNTs composites have been synthesized by in-situ polymerization. The SEM results show that carbon nanotubes are well dispersed and directionally arranged in the composites. The electrical conductivities of the parallel direction (parallel with ACNTs) and perpendicular direction (perpendicular with ACNTs) of composites were respectively tested to be 15 S·cm-1 and 4 S·cm-1, so the composites were conductivity anisotropic. Compared with PMMA, the thermal stable temperature of composites in air was improved by 100 ℃,and the thermal con- ductivity of composites was 13.64 times of PMMA.Methyl Methacrylate（MMA） has been filled in the apertures of aligned carbon nanotubes（ACNTs）. Then PMMA/ACNTs composites have been synthesized by in-situ polymerization. The SEM results show that carbon nanotubes are well dispersed and directionally arranged in the composites. The electrical conductivities of the parallel direction （parallel with ACNTs） and perpendicular direction （perpendicular with ACNTs） of composites were respectively tested to be 15 S·cm^-1 and 4 S·cm^-1, so the composites were conductivity anisotropic. Compared with PMMA, the thermal stable temperature of composites in air was improved by 100 ℃,and the thermal conductivity of composites was 13.64 times of PMMA.

关 键 词：定向碳纳米管 PMMA 复合材料 电导率 导热系数 

分 类 号：O613.71[理学—无机化学]