摘要 聚吡咯(PPy)是种新型的具有共轭结构的导电高分子,非常具有研究价值,多 壁碳管和石墨烯也是最近的研究热点,由于其特殊的微观结构而往往具有许多优异的 性 能 。 本 课 题 通 过 化 学 氧 化 法 , 成 功 制 备 了 本 征 态 PPy 、 聚 吡 咯 / 多 壁 碳 管(PPy/MWCNTs)复合材料、聚吡咯/氧化石墨烯(PPy/GO)复合材料和掺杂 PPy 复 合材料,通过对这些材料的导电性和热稳定性进行测试发现:PPy 具有导电性和良好 的热稳定性,多壁碳管(MWCNTs)有利于提高 PPy/MWCNTS 复合材料的导电性和 热稳定性;适量氧化石墨烯(GO)可以提高 PPy/GO 复合材料的导电性,但是当氧化石 墨烯含量过多时,PPy/GO 复合材料的导电性却会降低;对 PPy 进行掺杂可以提高掺 杂 PPy 复合材料复合材料的导电性,但是掺杂 PPy 复合材料的热稳定性不佳,在较 高温度下容易发生脱掺杂脱去掺杂剂分子。95113
毕业论文关键词:聚吡咯,多壁碳管,氧化石墨烯,电导率
Abstract Polypyrrole( PPy) is a new kind of conductive polymer with conjugated structure, which has a great research value。Multi-walled carbon nanotubes(MWCNTs)and graphene oxide(GO) also become the focus of research, which often has lots of excellent properties because of its special microstructure 。In this experiment, intrinsic polypyrrole (PPy),The composite materials of polypyrrole and multi walled carbon nanotubes (PPy/MWCNTs) composite, the doped PPy and the composite materials of polypyrrole and graphene oxide (PPy/GO) composite were prepared by chemical oxidation,the conductivity and thermal stability of these materials were tested ,we found that PPy has good conductivity and good thermal stability,multi walled carbon nanotubes (MWCNTs) are beneficial to improve the conductivity and thermal stability of Polypyrrole/multi walled carbon tube (PPy/MWCNTS) composites,A proper amount of graphene oxide(GO) can improve the
conductivity of Polypyrrole / graphene oxide composites,but excessive amounts of graphene oxide can reduce the conductivity of the oligomeric pyrrole / graphene oxide composites and doping can improve the conductivity of doped PPy composite,however, the thermal stability of doped PPy is poor, and the dopant molecules can be easily removed at higher temperature。
Keywords: polypyrrole, MWCNTS, graphene oxide, conductivity
目录
第一章 绪论 5
1。1 引言 5
1。2 PPy 5
1。2。1 PPy 的导电机理 5
1。2。2 PPy 的聚合机理 6
1。2。3 PPy 相关领域的研究与发展 6
1。3 PPy 复合材料 7
1。3。1 PPy/MWCNTs 复合材料 7
1。3。2 PPy/GO 复合材料 8
1。3。3 掺杂 PPy 复合材料 9
1。3。4 PPy 复合材料相关领域的研究进展和存在的问题 9
1。4 选题的意义及研究的主要内容 11
1。4。1 选题的意义 11
1。4。2 本课题主要研究的内容 12
第二章 PPy/MWCNTs 复合材料的制备及性能研究 13
2。1 引言 13
2。2。1 实验药品与仪器 13