Conductive mechanism of polymer/graphite conducting composites with low percolation threshold
文献类型：期刊论文
| 作者 | Zou, JF; Yu, ZZ; Pan, YX; Fang, XP; Ou, YC |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2002-05-15 |
| 卷号 | 40期号:10页码:954-963 |
| 关键词 | Polystyrene Nylon-6 Percolation Threshold Conducting Composites Expanded Graphite |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.10141 |
| 英文摘要 | Preparation of the conducting composites of polystyrene/expanded graphite via in situ polymerization and investigation of the conductive mechanism were carried out. They are characterized by high conductivity and a low percolation threshold. The electrical conductivity reached 10(-2) S/cm with 3.0 vol % expanded graphite content, whereas the percolation threshold was 1.0 vol %. Optical micrographs revealed the heterogeneous distribution of the graphite particles and the formation of a conductive network in the polymer matrix. A model of primary particle was proposed to interpret the conductive phenomena. The primary particle is the basic conductive unit in the composites that comprises three of the following parts: the graphite particle, the compact-adsorbed layer, and the wrapping shell. Our model was also used to explain the experimental data in our previous studies on nylon-6/expanded graphite composites. A low percolation threshold of conducting composites can be also explained according to the model of the primary particle. Furthermore, the theoretical line of conductivity versus primary particle content calculated from the revised Flory's theory fits the experimental data well. (C) 2002 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000175073800005 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/79115]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ou, YC |
| 作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zou, JF,Yu, ZZ,Pan, YX,et al. Conductive mechanism of polymer/graphite conducting composites with low percolation threshold[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2002,40(10):954-963. |
| APA | Zou, JF,Yu, ZZ,Pan, YX,Fang, XP,&Ou, YC.(2002).Conductive mechanism of polymer/graphite conducting composites with low percolation threshold.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,40(10),954-963. |
| MLA | Zou, JF,et al."Conductive mechanism of polymer/graphite conducting composites with low percolation threshold".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 40.10(2002):954-963. |
入库方式： OAI收割
来源：化学研究所
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