Study on Graphene Oxide Modified Inorganic Phase Change Materials and Their Packaging Behavior

查看全文 作　　者：[1]肖力光;ZHAO [1]Mingyue;HU [1]Hongliang

机构地区：[1]School of Materials Science and Engineering,Jilin Jianzhu University,Changchun 130118,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》索引2018年第33卷第4期,共5页

基　　金：the National Key Technologies Research and Development Program of China(No.2016YFC0701002) 摘　　要：We prepared the nano-inorganic phase-change 'alloy' materials through the modification of Na_2SO_4·10H_2O using Na_2HPO_4·12H_2O and GO nano-nucleating agent, and further investigated their thermophysical properties such as melting/solidification temperatures and enthalpies via differential scanning calorimetry. When the weight ratio of Na_2SO_4·10H_2O and Na_2HPO_4·12H_2O was 8:2 and the weight ratio of graphene oxide was 0.5% of phase change material, the phase change 'alloy' material showed excellent performances, specifically, the melting temperature and latent heat were found to be 22 ℃ and 190 J/g with a degree of subcooling decreased from 8.6℃ to 2.1℃. In order to extend the application of the phase change 'alloy' material to building energy saving field, it was adsorbed on expanded glass beads under vacuum and further covered with diatomite. When the adsorption rate of EGB(volume) and PCAM(weight) was 2.5:1, the particle size of diatomaceous earth was found to be 3.6μm, while the best packaging result was obtained with the melting temperature and latent heat being 21℃ and 135 J/g, and no leakage was observed. 关键词：氧化物材料包装无机 NA2SO4 行为修改学习

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Study on Graphene Oxide Modified Inorganic Phase Change Materials and Their Packaging Behavior

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