CA-SA/蒙脱土复合相变贮能材料的制备、结构与性能  

Preparation,structure and properties of CA-SA/montmorillonite composite phase-change energy storage materials

作　　者：李忠[1] 井波[1] 于少明[2] 

机构地区：[1]安徽理工大学化工系,淮南232001 [2]合肥工业大学化工学院,合肥230009

出　　处：《化工新型材料》2007年第3期42-44,共3页New Chemical Materials

基　　金：安徽省教育厅自然科学基金项目(2004KJ121);安徽省高等学校青年教师科研资助计划自然科学项目(2006jq1073zd)

摘　　要：用差式扫描量热(DSC)技术研究了癸酸(CA)和硬脂酸(SA)二元混合物的热性能,确定了CA-SA二元低共熔物的组成和相变温度;在此基础上,研究了CA-SA二元低共熔物与蒙脱土复合贮能材料的制备方法,并用XRD、IR、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:CA-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20.21℃,相变焓为120.43J/g。The thermal properties of capric acid（CA） and stearic acid（SA） binary system were evaluated by the differential scanning calorimeter （DSC）, and the mass ratio, phase change temperature of CA-SA binary system was found. Then the preparation of CA-SA/montmorillonite composite materials 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） and DSC. The result showed that CA-SA eutectic mixtures were sealed effectively in the interlayer of montmorillonite and the composite material had obvious energy storage characteristics with melting temperatures of 20. 21℃ and the latent heat of fusion of 120. 43J/g.

关 键 词：相变贮能 复合材料 蒙脱土 脂肪酸 

分 类 号：TB34[一般工业技术—材料科学与工程]