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| 基于弱相互作用的石墨化CNT/PMMA复合材料的热电传输性能 | |
| 引用本文： | 曾尤,赵龙,刘鹏飞,杜金红,刘畅.基于弱相互作用的石墨化CNT/PMMA复合材料的热电传输性能[J].高等学校化学学报,2010,31(6). |
| 作者姓名： | 曾尤 赵龙 刘鹏飞 杜金红 刘畅 |
| 作者单位： | 1. 沈阳建筑大学材料科学与工程学院,沈阳,110168 2. 沈阳建筑大学材料科学与工程学院,沈阳,110168;中国科学院金属研究所,沈阳材料科学国家(联合)实验室,沈阳,110016 3. 中国科学院金属研究所,沈阳材料科学国家(联合)实验室,沈阳,110016 |
| 基金项目： | 国家自然科学基金，辽宁省教育厅项目，辽宁省高校重点实验室开放基金 |
| 摘 要： | 从理论上计算了碳纳米管(CNT)与聚甲基丙烯酸甲酯(PMMA)的相互作用及浸润性,并测试了CNT/PMMA复合材料的电学、热学和光学性能.发现石墨化CNT/PMMA复合材料具有较好的导热和导电性能,其渗流阈值在0.8%左右,当CNT质量分数为3%时,复合材料的导热系数提高193%.这种电学及热学性能的提高一方面与石墨化CNTs的规整结构有关,另一方面与石墨化CNT-PMMA体系的弱相互作用、CNT间的有效接触以及高效的CNT网络输运性能有密切关系.研究结果表明,通过调控CNT与聚合物基体的表面性质、相互作用及浸润性,可以有效地构建优化的CNT输运网络,获得性能优异的功能复合材料. |
| 关 键 词： | 碳纳米管 弱相互作用 聚甲基丙烯酸甲酯 复合材料 热电传输性能 |
Thermal and Electrical Conductivities of the Graphitized Carbon Nanotube/poly (methyl methacrylate) Composites Based on Weak Nanotube-polymer Interactions |
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| ZENG You,ZHAO Long,LIU Peng-Fei,DU Jin-Hong,LIU Chang.Thermal and Electrical Conductivities of the Graphitized Carbon Nanotube/poly (methyl methacrylate) Composites Based on Weak Nanotube-polymer Interactions[J].Chemical Research In Chinese Universities,2010,31(6). | |
| Authors: | ZENG You ZHAO Long LIU Peng-Fei DU Jin-Hong LIU Chang |
| Institution: | ZENG You1,ZHAO Long1,2,LIU Peng-Fei1,DU Jin-Hong2,LIU Chang2(1.School of Materials Science and Engineering,Shenyang Jianzhu University,Shenyang 110168,China,2.Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China) |
| Abstract: | Electrical and thermal conductivities of carbon nanotube(CNT)/polymer composites are greatly hindered by polymer-wrapping around CNTs due to high surface energy of CNTs.The graphitized multi-walled CNTs filled poly(methyl methacrylate)(PMMA) were investigated on the basis of surface physical chemistry and wetting thermodynamics.The electrical and thermal conductivities of the graphitized CNT/PMMA compo-sites were measured to evaluate enhancing effects of the graphitized CNTs.The graphitized CNT/PMMA composi... |
| Keywords: | Carbon nanotube Weak interaction Poly(methyl methacrylate) Composite Thermal and electrical conductivity |
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