熔融插层法制备蒙脱石基石蜡复合相变储能材料-硅酸盐学报.PDF

· 624 · 硅 酸 盐 学 报 2011 年 第39 卷第4 期 硅 酸 盐 学 报 Vol. 39 ，No. 4 2 0 1 1 年 4 月 JOURNAL OF THE CHINESE CERAMIC SOCIETY April ，2011 熔融插层法制备蒙脱石基石蜡复合相变储能材料 王小鹏，张 毅，沈振球，李东旭 (南京工业大学材料科学与工程学院，南京 210009) : 摘 要：采用熔融插层法使石蜡吸附插层进有机膨润土中，制备蒙脱石基石蜡复合相变储能材料。按膨润土与石蜡的质量比2 1 制备复合储能材料在 高温下无液态石蜡渗出，石蜡含量为33.33% 。用X 射线衍射、扫描电子显微镜、差示扫描量热仪及Fourier 变换红外光谱对复合相变储能材料进行分 析。结果表明：制备的储能材料的相变温度为25.9 ℃，相变焓为34.08 J/g ；石蜡进入膨润土的蒙脱石矿物层面之间，两者间未发生化学反应。 关键词：有机膨润土；石蜡；熔融插层；相变储能材料；热性能； 中图分类号：TD985 文献标志码：A 文章编号：0454–5648(2011)04–0624–06 Melting Intercalation Method to Prepare Montmorillonite Based Paraffin Composite Phase Change Energy Storage Material WANG Xiaopeng，ZHANG Yi ，SHEN Zhenqiu ，LI Dongxu (School of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China) Abstract: Montmorillonite based paraffin composite phase change energy storage materials (composite PCM) were prepared by melting intercalation method that paraffin is absorbed and intercalated into organophilic bentonite. Under high temperature, no liquid paraffin seep out from the composite PCM of bentonite/paraffin mass ratio is 2:1, and paraffin content was 33.33%. Samples were tested by X-ray diffraction, scanning electron microscopy, differential scanning calorimetry and Fourier transform infrared spectros- : copy. The results show that melting point and heat fusion of composite PCM with mass ratio 2 1 is 25.9 ℃ and 34.08 J/g. The pa