| 正十八烷/凹凸棒土复合相变储能材料的制备及热性能研究 |
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| 引用本文： | 陈培海,张焕芝,孙立贤,曹忠,徐芬,陈娇,吴涛. 正十八烷/凹凸棒土复合相变储能材料的制备及热性能研究[J]. 材料导报, 2014, 28(14): 62-66 |
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| 作者姓名： | 陈培海 张焕芝 孙立贤 曹忠 徐芬 陈娇 吴涛 |
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| 作者单位： | 长沙理工大学化学与生物工程学院，长沙 410004;桂林电子科技大学材料科学与工程学院，桂林541004;桂林电子科技大学材料科学与工程学院，桂林541004;长沙理工大学化学与生物工程学院，长沙 410004;桂林电子科技大学材料科学与工程学院，桂林541004;辽宁师范大学化学化工学院，大连 116029;长沙理工大学化学与生物工程学院，长沙 410004 |
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| 基金项目： | 973计划(2010CB631303)；国家自然科学基金（51102230；51361005；51371060；51071146；21173111；51071081)；中国博士后科学基金特别资助项目（2012T50271）；广西自然科学基金（2013GXNSFBA019244）；广西信息材料重点实验室基金（桂科能1210908-210-Z；1210908-217-Z）；爆炸科学与技术国家重点实验室基金（KFJJ13-12M） |
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| 摘 要： | 以正十八烷为相变材料,凹凸棒土为支撑基体,通过真空浸渍法将相变材料有效地吸附固定于凹凸棒土的孔道结构中,制备出结构稳定、热性能稳定的新型正十八烷/凹凸棒土复合相变储能材料。由凹凸棒土N2吸附试验和SEM图片可以发现凹凸棒土疏松多孔、比表面积大,从而能有效吸附正十八烷相变材料。对制备的新型复合相变储能材料进行DSC测试,并进一步对其进行20次DSC冷热循环测试,样品的相变温度及相变潜热基本保持不变,说明其具有优异的相变蓄热特性和热循环稳定性,具有较好的应用前景。
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| 关 键 词： | 凹凸棒土 正十八烷 相变储能材料 热性能 |
Preparation and Thermal Properties of N-octadecane/Attapulgite Composite Phase Change Materials |
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| CHEN Peihai,ZHANG Huanzhi,SUN Lixian,CAO Zhong,XU Fen,CHEN Jiao and WU Tao. Preparation and Thermal Properties of N-octadecane/Attapulgite Composite Phase Change Materials[J]. Materials Review, 2014, 28(14): 62-66 |
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| Authors: | CHEN Peihai ZHANG Huanzhi SUN Lixian CAO Zhong XU Fen CHEN Jiao WU Tao |
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| Affiliation: | School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004;Faculty of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004;Faculty of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004;School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004;Faculty of Material Science & Engineering, Guilin University of Electronic Technology, Guilin 541004;College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029;School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004 |
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| Abstract: | N-octadecane/attapulgite composite phase change materials (PCMs) were prepared through vacuum infiltration method by using n-octadecane as phase change materials, attapulgite as supporting materials. N2 adsorption desorption isotherms and scanning electron microscope (SEM) images indicate that attapulgite possesses large specific surface area which can effectively absorb n-octadecane into its multiporous structure. The differential scanning analysis (DSC) curves show that the obtained samples have good thermal properties, and their phase change temperature and latent heat can keep constant after 20 times of thermal testing. The results indicate that the prepared composite phase change materials possess excellent thermal stability and have a broad application prospect. |
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| Keywords: | attapulgite n-octadecane phase change materials thermal property |
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