Low percolation thresholds of electrical conductivity and rheology in poly(ethylene terephthalate) through the networks of multi-walled carbon nanotubes
文献类型：期刊论文
| 作者 | Hu, GJ; Zhao, CG; Zhang, SM; Yang, MS; Wang, ZG |
| 刊名 | POLYMER
 |
| 出版日期 | 2006 |
| 卷号 | 47期号:1页码:480-488 |
| ISSN号 | 0032-3861 |
| 关键词 | Nanocomposite Multi-wall Carbon Nanotubes Poly(Ethylene Terephthalate) |
| DOI | 10.1016/j.polymer.2005.11.028 |
| 英文摘要 | Coagulation method was first used to prepare nanocomposites of multi-wall carbon nanotubes (MWNT) and poly(ethylene terephthalate) (PET). The morphology of nanocomposites is characterized using transmission electronic microscopy and scanning electronic microscopy. A coating on MWNT by PET chains is observed by comparison of micrographs of purified MWNT and MWNT encapsulated by PET chains in the nanocomposites, and this coating is considered as evidence of interfacial interaction between MWNT and PET chains. Both electrical conductivity and rheological properties have been well characterized. With increasing MWNT loading, the nanocomposites undergo transition from electrically insulative to conductive at room temperature, while the melts show transition from liquid-like to solid-like viscoelasticity. The percolation threshold of 0.6 wt% (based on viscosity) for rheological property and 0.9 wt% for electrical conductivity has been found. The low percolation threshold results from homogeneous dispersion of MWNT in PET matrix and high aspect ratio of MWNT. The less rheological percolation threshold than electrical percolation threshold is mainly attributed to the fact that a denser MWNT network is required for electrical conductivity, while a less dense MWNT network sufficiently impedes PET chain mobility related to the rheological percolation threshold. (c) 2005 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000234617600061 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/59203]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, MS |
| 作者单位 | Chinese Acad Sci, Key Lab Engn Plast, Joint Lab Polymer Sci & Mat, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, GJ,Zhao, CG,Zhang, SM,et al. Low percolation thresholds of electrical conductivity and rheology in poly(ethylene terephthalate) through the networks of multi-walled carbon nanotubes[J]. POLYMER,2006,47(1):480-488. |
| APA | Hu, GJ,Zhao, CG,Zhang, SM,Yang, MS,&Wang, ZG.(2006).Low percolation thresholds of electrical conductivity and rheology in poly(ethylene terephthalate) through the networks of multi-walled carbon nanotubes.POLYMER,47(1),480-488. |
| MLA | Hu, GJ,et al."Low percolation thresholds of electrical conductivity and rheology in poly(ethylene terephthalate) through the networks of multi-walled carbon nanotubes".POLYMER 47.1(2006):480-488. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。