化工进展Issue(5)：1371-1376,6.DOI:10.16085/j.issn.1000-6613.2015.05.031
空调用纳米有机复合相变蓄冷材料分散稳定性
Dispersion stability of nano-organic composite phase change materials for cool storage in air-conditioning
摘要
Abstract
The dispersion stability of nanomaterials plays a decisive role on retaining the good performance of nano-organic composite phase change materials (PCMs),when nanomaterials are used as heat transfer enhancement additive of PCMs. To prepare nano-organic composite PCMs for air-conditioning cool storage,nanomaterials with high thermal conductivity,including MWNTs,Al2O3 and Fe2O3,were respectively added into the organic composite PCMs of caprylic acid/myristyl alcohol (with a mass ratio of 73.7 to 26.3),developed previously in our study. The dispersing stability of nano-organic composite PCMs was analyzed indirectly by measuring their thermal conductivity coefficients. The kinds and concentrations of nano-material and dispersant are key influencing factors, as well as ultrasound dispersing time. The experimental results showed that the SDBS had the best dispersing effect on the composite PCMs,and the dispersing stability of the composite PCMs reached optimum,when the ultrasound dispersing time was 90 min,and mass ratios between the dispersant SDBS and MWNTs,Al2O3,Fe2O3 were 2∶1,3∶1,3∶1,respectively. The new evaluation method and guide to obtain the nano-organic composite PCMs with good and stable performance were proposed in this paper.关键词
相变/有机化合物/纳米材料/分散/稳定性Key words
phase change/organic compounds/nanomaterials/dispersion/stability分类
能源科技引用本文复制引用
武卫东,唐恒博,苗朋柯,张华..空调用纳米有机复合相变蓄冷材料分散稳定性[J].化工进展,2015,(5):1371-1376,6.基金项目
国家自然科学基金（50606027）及上海市自然科学基金（14ZR1429000）项目。 （）
