己二酸/二氧化硅复合相变储热材料的制备及性能

doi:10.3969/j.issn.2095-4239.2014.02.005

储能科学与技术 ›› 2014, Vol. 3 ›› Issue (2): 123-127.doi: 10.3969/j.issn.2095-4239.2014.02.005

己二酸/二氧化硅复合相变储热材料的制备及性能

朱教群¹, 钱云霞¹, 周卫兵¹, 程晓敏¹, 杨宪杰²

1武汉理工大学材料科学与工程学院,湖北武汉 430070;
2广东五星太阳能股份有限公司,广东东莞 523000

收稿日期:2013-10-10 出版日期:2014-03-01 发布日期:2014-03-01
作者简介:第一作者及通讯联系人:朱教群(1964--),男,研究员,博士生导师,主要研究方向为蓄热混凝土的制备研究,自润滑材料的开发研究,Ti₂AlC/TiAl复合材料相形机理研究,新型脱硫喷枪浇注料的开发研究,E-mail:zhujiaoq@whut.edu.cn.
基金资助:
国家科技支撑计划(2012BAA05B03,2012BAA05B05),武汉市科技攻关(201210321094)

Adipic acid-silica composite phase change materials for thermal energy storage:Preparation and characterization

ZHU Jiaoqun¹, QIAN Yunxia¹, ZHOU Weibing¹, CHENG Xiaomin¹, YANG Xianjie²

1School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,Hubei,China;
2Guangdong Fivestar Solar Energy Company,Dongguan 523000,Guangdong,China

Received:2013-10-10 Online:2014-03-01 Published:2014-03-01

摘要/Abstract

摘要： 以己二酸为相变材料,二氧化硅溶胶为基体,采用水热法制备己二酸/二氧化硅复合相变储热材料.应用X射线衍射仪(XRD),红外光谱分析(FT-IR),场发射扫描电子显微镜(FE-SEM),同步热分析仪(TG)和差示扫描量热仪(DSC)测试所制备复合材料的显微结构,相变温度和相变焓.结果表明:当反应条件为pH=5,反应温度为150 ℃,反应时间为4 h时,己二酸与二氧化硅之间是简单的物理嵌合关系,复合材料粒径较均匀,平均粒径在1~2 μm;当己二酸的质量分数为30%时,复合材料相变温度峰值为139.0 ℃,相变焓为48.82 J/g;当己二酸的质量分数为50%时,复合材料相变温度峰值为140.5 ℃,相变焓为71.89 J/g.

关键词: 水热法, 己二酸, 二氧化硅, 相变材料

Abstract: Adipic acid-amorphous silica composite phase change thermal energy materials are prepared by using a hydrothermal method. The composite materials are characterized by X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FT-IR), field emission scanning electron microscope (FE-SEM), and synchronous thermal gravimetric analyzer (TGA) and differential scanning calorimetry (DSC). The results show no sign of chemical reactions between adipic acid and silicon dioxide at pH of 5 and temperature of 150 ℃. The particle size of the composite phase change material is uniform with 1--2 μm diameter. The phase change temperatures and the latent heats of the composites are respectively 139.0 ℃ and 48.82 J/g for 30% (by mass) adipic acid loading and 140.5 ℃ and 71.89 J/g for 50% (by mass) adipic acid loading.

Key words: hydrothermal process, adipic acid, silica, phase change materials

中图分类号:

TK512.4

朱教群, 钱云霞, 周卫兵, 程晓敏, 杨宪杰. 己二酸/二氧化硅复合相变储热材料的制备及性能[J]. 储能科学与技术, 2014, 3(2): 123-127.

ZHU Jiaoqun, QIAN Yunxia, ZHOU Weibing, CHENG Xiaomin, YANG Xianjie. Adipic acid-silica composite phase change materials for thermal energy storage:Preparation and characterization[J]. Energy Storage Science and Technology, 2014, 3(2): 123-127.

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己二酸/二氧化硅复合相变储热材料的制备及性能

Adipic acid-silica composite phase change materials for thermal energy storage:Preparation and characterization

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