|
|||||
|
|
| 多壁碳纳米管的辐照处理及其对多壁碳纳米管/环氧树脂复合材料热性能的影响 | |
| 引用本文： | 陈雅君,杨春壮,郭正虹,张艳,程捷,方征平.多壁碳纳米管的辐照处理及其对多壁碳纳米管/环氧树脂复合材料热性能的影响[J].新型炭材料,2012,27(1):67-73. |
| 作者姓名： | 陈雅君 杨春壮 郭正虹 张艳 程捷 方征平 |
| 作者单位： | 1. 浙江大学宁波理工学院高分子材料与工程研究所,浙江宁波 315100;浙江大学高分子复合材料研究所/高分子合成与功能构造教育部重点实验室,浙江杭州 310027 2. 浙江大学高分子复合材料研究所/高分子合成与功能构造教育部重点实验室,浙江杭州,310027 3. 浙江大学宁波理工学院高分子材料与工程研究所,浙江宁波,315100 |
| 基金项目： | 国家自然科学基金资助项目 |
| 摘 要： | 在空气中用高频高压电子加速器辐照多壁碳纳米管(MWCNTs),采用红外光谱、能谱分析、拉曼光谱和透射电镜表征分析辐照处理对碳纳米管结构的影响；通过原位复合法制备MWCNT/环氧树脂(EP)复合材料.采用场发射扫描电镜、热失重分析和动态力学分析研究辐照处理MWCNTs对环氧树脂热稳定性的影响.结果表明:电子束辐照处理使MWCNTs表面接入了少量的含氧基团,同时破坏了MWCNTs的完整结构,当辐照剂量为170 kGy时,接枝含氧基团的量最多(约为4％),且结构破坏程度较小.与原始MWCNT/EP体系相比,经电子束辐照处理后的MWCNTs在EP中分散得更均匀,并能使材料的最大热分解温度和玻璃化转变温度较纯EP有所提高,在EP中加入质量分数0.5％的经170kGy辐照处理后的MWCNTs,能够使材料的最大热分解温度和玻璃化转变温度分别提高约14℃和8℃. |
| 关 键 词： | 多壁碳纳米管 电子束辐照 环氧树脂 复合材料 热性能 |
Irradiation treatment of multiwalled carbon nanotubes and its effect on the thermal properties of their composites with epoxy resin |
|
| CHEN Ya-jun , YANG Chun-zhuang , GUO Zheng-hong , ZHANG Yan , CHENG Jie , FANG Zheng-ping.Irradiation treatment of multiwalled carbon nanotubes and its effect on the thermal properties of their composites with epoxy resin[J].New Carbon Materials,2012,27(1):67-73. | |
| Authors: | CHEN Ya-jun YANG Chun-zhuang GUO Zheng-hong ZHANG Yan CHENG Jie FANG Zheng-ping |
| Affiliation: | 1,2(1.Lab of Polymer Materials and Engineering,Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,China; 2.Institute of Polymer Composites,Zhejiang University/MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Hangzhou 310027,China) |
| Abstract: | Multi-walled carbon nanotubes(MWCNTs) were irradiated to different doses by high-energy electron beams.The structure of the irradiated MWCNTs was characterized by Fourier transform infrared spectroscopy,X-ray energy dispersion spectroscopy,Raman spectroscopy and transmission electron microscopy.MWCNT/epoxy composites were prepared by a cast-molding method.The effect of the irradiation on the properties of the composites was studied by scanning electron microscopy,thermogravimetry and dynamic mechanical analysis.Results showed that oxygen-containing groups were covalently bonded on the MWCNTs.The MWCNTs were collapsed and even broken after irradiation.The percentage of the oxygen-containing groups had a maximum of 4% at a radiation dose of 170 kGy.It was found that the irradiated MWCNTs could be easily dispersed in epoxy resin.Addition of 0.5 mass% MWCNTs irradiated with 170 kGy to epoxy resin improved the glass transition temperature and the initial decomposition temperature by 8 and 14 ℃,respectively. |
| Keywords: | Multi-walled nanotubes Irradiation Epoxy resin Composites Thermal properties |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
