摘要
采用热熔复混法,以改性蛋白土为基体、石蜡为相变物质,制备出了具有合适相变温度、较大相变潜热的复合储能材料。采用SEM、红外光谱和差示扫描量热DSC对复合相变材料的结构和性能进行了表征,结果表明,制备的复合材料相变温度为24.91℃,相变潜热为64.31 J/g,颗粒均匀分布在蛋白土与熔融石蜡构成的基体之中;载体蛋白土和相变材料石蜡之间以分子间作用力的物理吸附结合,得到了稳定的复合相变材料。
Organic phase change materials like paraffin as phase change material, modified opal as carrier, composite phase change material with proper phase change temperature and larger phase change enthalpy is prepared by hot melt complex mixed. The structure and performance of composite phase material are characterized using SEM, infrared spectroscopy and synthesized thermal analyzer DSC. The results show that the phase change temperature of composite phase change materials is 24.91 ℃, and phase change enthalpy is 64.31 J/g. With every part preserved, phase change particles are distributed in the opal/melted paraffin matrix evenly. Stable composite phase change materials are prepared with opal as carrier and paraffin as PCMs, which are bonded with Vander Waals forces in the form of physical adsorption.
出处
《非金属矿》
CAS
CSCD
北大核心
2013年第1期59-60,73,共3页
Non-Metallic Mines
关键词
复合相变材料
蛋白土
改性
石蜡
composite-change material opal modification paraffin
