| 高导电聚苯胺/纳米石墨微片复合材料的结构与性能 |
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| 引用本文： | 吴新明,齐暑华,贺捷,段国晨.高导电聚苯胺/纳米石墨微片复合材料的结构与性能[J].高分子材料科学与工程,2010(4):67-70. |
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| 作者姓名： | 吴新明 齐暑华 贺捷 段国晨 |
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| 作者单位： | 西北工业大学理学院应用化学系; |
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| 摘 要： | 以天然可膨胀石墨(GN)为原材料,采用酸及快速热处理制备了膨胀石墨(EG),再将膨胀石墨置于超声波中制得了纳米石墨微片(NanoG),最后采用原位聚合法制备了聚苯胺/纳米石墨微片(PANI/NanoG)导电复合物。扫描电镜(SEM)显示纳米石墨微片长径为0.8μm～20μm,厚度为30nm～90nm。聚苯胺均匀覆盖在纳米石墨微片表面;透射电镜(TEM)揭示了纳米石墨微片的片层分散在复合物中并形成了导电网络;电性能测试表明,当纳米石墨微片含量为0.5%(质量分数,下同)时,复合物电导率达到107.3S/cm,其渗滤阈值达到0.1%,纳米石墨微片独特的结构(宽度/厚度的高比值)及在聚苯胺中的分散造就了复合物良好的导电性能。
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| 关 键 词： | 聚苯胺 纳米石墨微片 制备 复合物 电性能 |
Structure and Performance of High Conductivity of Polyaniline/Graphite Nanosheets Composites |
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| WU Xin-ming,QI Shu-hua,HE Jie,DUAN Guo-chen.Structure and Performance of High Conductivity of Polyaniline/Graphite Nanosheets Composites[J].Polymer Materials Science & Engineering,2010(4):67-70. |
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| Authors: | WU Xin-ming QI Shu-hua HE Jie DUAN Guo-chen |
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| Affiliation: | Department of Applied Chemistry;Northwestern Polytechnical University;Xi'an 710072;China |
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| Abstract: | Graphite nanosheets (NanoG) were prepared by treating the expanded graphite (EG) with sonication in aqueous alcohol solution. Composites of polyaniline (PANI) with NanoG were prepared via an in situ polymerization of aniline (ANI) in the presence of NanoG with the acid of sonication. Structures and conducting properties of NanoG and PANI/NanoG composites were characterized through scanning electron microscope (SEM),transmission electron microscopy (TEM) and measurement of the electrical conductivity. Result... |
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| Keywords: | polyaniline graphite nanosheets preparation composites electrically property |
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