具有多孔基体复合相变储能材料研究  

Study on the Thermal Energy Storage Phase Change Composite Material with Porous Skeleton

作　　者：李辉[1] 方贵银[2] 

机构地区：[1]南京大学材料科学与工程系,江苏南京210093 [2]南京大学物理系,江苏南京210093

出　　处：《材料科学与工程学报》2003年第6期842-844,共3页Journal of Materials Science and Engineering

基　　金：南京大学分析测试基金资助项目

摘　　要：本文提出了研制一种具有多孔基体的复合相变储能材料 ,通过实验分析了该储能材料的融解温度、融解热、热稳定性及微相结构等性能。该储能材料是由两种有机相变材料组成 ,通过物理吸附的方法将其复合在多孔基体材料中。在热分析中 ,用示差扫描量热仪 (DSC)来测定储能材料的融点、融解热 ,用热重分析仪(TGA)测定其热稳定性 ,并用扫描电镜 (SEM)观测了该储能材料的微相结构。测试结果表明该储能材料具有较高的相变潜热和较好的热稳定性 。The thermal energy storage phase change composite material with porous skeleton is presented. The properties of thermal energy storage material include melting point, the heat of fusion, thermal stability and microstructure are investigated. The thermal energy storage material is composed of two kinds of organic phase change materials. The thermal energy storage phase change composite material with porous skeleton is composed of thermal energy storage material and solid skeleton material by physical adsorption. In the thermal analysis, the Differential Scanning Calorimeter(DSC) was used to determine melting point and heat of fusion of thermal energy storage material, the Thermogravimetric Analyzer(TGA) instrument was used to determine the thermal stability of the thermal energy storage material, the microstructure of the thermal energy storage material is viewed by Scanning Electron Microscope(SEM).The results show that the thermal energy storage phase change composite material with porous skeleton has higher latent heat and better thermal stability, so it can be used in thermal energy storage and heat recovery system.

关 键 词：复合相变储能材料 热稳定性 有机相变材料 多孔基体材料 

分 类 号：TB34[一般工业技术—材料科学与工程]