| 石墨/石蜡复合相变储热材料的热性能研究 |
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| 引用本文： | 张秀荣,朱冬生,高进伟,吴淑英.石墨/石蜡复合相变储热材料的热性能研究[J].材料研究学报,2010,24(3). |
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| 作者姓名： | 张秀荣 朱冬生 高进伟 吴淑英 |
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| 作者单位： | 华南理工大学化学与化工学院强化传热与过程节能教育部重点实验室,广州,510640;华南理工大学化学与化工学院强化传热与过程节能教育部重点实验室,广州,510640;华南理工大学化学与化工学院强化传热与过程节能教育部重点实验室,广州,510640;华南理工大学化学与化工学院强化传热与过程节能教育部重点实验室,广州,510640 |
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| 基金项目： | 国家自然科学基金20346001; 广州市科技计划2008Z1-1061资助项目~~ |
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| 摘 要： | 膨胀石墨(EG)在超声作用下解离成微米级石墨片层(MSGF),并加入到石蜡基体中制备得到石墨/石蜡复合相变储热材料,并对复合相变材料的结构和热性能进行表征。实验结果表明,该石墨/石蜡复合相变储热材料储热速率加快,化学性质稳定。随MSGF质量分数的增加,固态及液态复合材料的导热系数均呈非线性显著增长,相变温度及相变潜热略有降低。
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| 关 键 词： | 复合材料 微米级石墨片层 石蜡 热性能 相变储热材料 |
Study on Thermal Properties of Graphtie/Paraffin Composites as Phase Change Heat Storage Material |
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| ZHANG Xiurong ZHU Dongsheng GAO Jinwei WU Shuying.Study on Thermal Properties of Graphtie/Paraffin Composites as Phase Change Heat Storage Material[J].Chinese Journal of Materials Research,2010,24(3). |
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| Authors: | ZHANG Xiurong ZHU Dongsheng GAO Jinwei WU Shuying |
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| Affiliation: | ZHANG Xiurong ZHU Dongsheng~* GAO Jinwei WU Shuying (Key Lab of Enhanced Heat Transfer , Energy Conservation,Ministry of Education,School of Chemistry , Chemical Engineering,South China University of Technology,Guangzhou 510640 ) |
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| Abstract: | EG was exfoliated into MSGF under high-energy ultrasound,and then the graphite/paraffin composite was prepared by mixing MSGF into melted paraffin.The structure and thermal properties of the composites were characterized using SEM,Hot Disk,and DSC.The experimental results show that the composites exhibit both high thermal conductivity and good thermal storage capacity,the speed of heat storage is raised and the chemical properties are stable.Moreover,with the increase of MSGF' s mass fraction,the thermal co... |
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| Keywords: | composites micron-size graphite flake paraffin thermal properties phase change heat storage material |
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