MA-SA/蒙脱土复合相变贮能材料的制备  

Preparation of MA-SA/montmorillonite composite phase-change energy storage materials

作　　者：李忠[1] 杭国培[1] 董灿君[2] 王世功 于少明[1] 

机构地区：[1]合肥工业大学化学工程学院,安徽合肥230009 [2]安徽华源发展有限公司,安徽合肥230011

出　　处：《合肥工业大学学报（自然科学版）》2005年第3期274-277,共4页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省教育厅自然科学基金资助项目(2004KJ121)

摘　　要：用DSC法研究了豆蔻酸(MA)和硬脂酸(SA)二元混合物的热性能,确定了MA-SA二元低共熔物的组成为67.00:33.00,相变温度为43.13℃;在此基础上,研究了MA-SA二元低共熔物/蒙脱土复合贮能材料的制备方法,并用XRD、IR和DSC等方法对复合材料的结构和性能进行了表征与测试。研究结果表明:MA-SA被有效地包封在蒙脱土层间,制得复合材料的相变温度为41.86℃,相变焓为130.32J/g,贮能性能满足调温纺织品的要求。The thermal properties of myristic acid(MA) and stearic acid(SA) binary system were evaluated by the differential scanning calorimeter(DSC),and it is found that the MA-SA binary system with the mass ratio of MA to SA being 67.00∶33.00 forms a eutectic, which melts at 43.13 ℃. Then the preparation of the MA-SA/montmorillonite composite material for phase change energy storage were studied,and the structure and property of the composite material were measured by using X-ray diffraction(XRD) spectrum,infrared(IR) spectrum and DSC. The result shows that MA-SA eutectic mixtures were sealed effectively in the interlayer of montmorillonite and the composite material had obvious energy storage characteristics with the melting temperature of 41.86 ℃ and the latent heat of fusion of 130.32 J/g. These thermal properties make the composite material suitable for temperature adaptable textiles.

关 键 词：脂肪酸 低共熔混合物 蒙脱土 相变 复合贮能材料 

分 类 号：TQ225[化学工程—有机化工]