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用原位聚合法制备了聚吡咯/碳纳米管(PPy/MWNTs)复合物.采用XRD、TGA、FT-IR、SEM、四探针测试仪和网络分析仪表征了PPy/MWNTs复合物的组成、结构、形貌和电性能.研究了不同制备条件,如质子酸及其浓度、MWNTs的质量分数(ωMWNTs)、引发剂和单体的物质的量比(nAPS/nPy)和反应时间对PPy/MWNTs复合物电性能的影响.结果表明,当磷酸浓度为0.1 mol/L、nAPS/nPy为1:1、ωMWNTs等于45wt%、反应时间12 h时,制备的PPy/MWNTs复合物的导电性和介电损耗性能最好.
PPy / MWNTs composites were prepared by in situ polymerization.The composition of PPy / MWNTs composites was characterized by XRD, TGA, FT-IR, SEM, four-probe tester and network analyzer , Structure, morphology and electrical properties were investigated.The effects of different preparation conditions, such as proton acids and their concentrations, mass fraction of MWNTs (ωMWNTs), molar ratio of initiator to monomer (nAPS / nPy) and reaction time on PPy / MWNTs composites.The results show that the conductivity of PPy / MWNTs composites prepared when the concentration of phosphoric acid is 0.1 mol / L, nAPS / nPy is 1: 1, ωMWNTs is equal to 45wt% and the reaction time is 12 h, And the best dielectric loss performance.