采用混合溶剂的溶液法技术,对聚丙烯接枝马来酸酐（PP-g-MAH）包覆碳纳米管（MWNTs）与聚丙烯（PP）纳米复合材料的电学和力学性能进行了研究。PP-g-MAH包覆MWNTs在二甲苯溶液中呈现良好的分散性,红外结果表明,酸化碳纳米管后表面官能团如羟基、羧基与马来酸酐发生氢键作用。场发射扫描电镜（FESEM）也证明了PP-g-MAH修饰MWNTs在PP基体中分散良好,并且相容性也得到了明显改善。复合材料的拉伸强度和电导率都有较大的提高,其中导电性相比未处理碳管/聚丙烯提高了两个数量级。
A study on the electrical and mechanical properties of polypropylene（PP） based nanocomposites with polypropyle-graft-maleic Anhydride（PP-g-MAH） modified multi-walled carbon nanotubes（MWNTs） was carried out.Fourier transform infrared spectroscopy（FT-IR）,Raman spectroscopy,field emission scanning electron microscope（FE-SEM）,differential scanning calorimeter（DSC） and thermogravimetric analysis（TGA） were used to study the structure,thermal and mechanical properties of the composites.FT-IR results indicate the carboxyl groups appear on the surface of MWNTs.FE-SEM results show that treated MWNTs also disperses well in the PP matrix and has a improved adhesion with PP.The tensile strength and the conductivity of the PP-g-MAH-MWNT/PP composite are increased,especially the conductivity increasing two orders of magnitude compared to PP composites with untreated MWNTs.
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