MA/HA二元相变保温材料制备及节能效果模拟研究  

Preparation of MA-HA binary phase change insulation materials and bim simulation of energy-saving effect

作　　者：安旭 吴杨洋 封波 黄仁林 司霜 AN XU;WU Yangyang;FENG Bo;HUANG Renlin;SI Shuang(China Construction Seventh Engineering Bureau Co.,Ltd.,Chongqing 401120,China;Kunming University of Science and Technology,Kunming 650031,China)

机构地区：[1]中国建筑第七工程局有限公司,重庆401120 [2]昆明理工大学,云南昆明650031

出　　处：《粘接》2024年第8期108-111,共4页Adhesion

摘　　要：为促进建筑节能,以肉豆蔻酸(MA)和碳十六酸(HA)制备二元相变材料,以膨胀珍珠岩作为吸附载体,制备一种保温材料,研究其性能。并结合建筑信息模型(BIM)节能模拟,研究该保温材料节能效果。结果表明,当MA和HA质量配比为70∶30,且保温材料中MA-HA二元相变材料质量分数为70%时,保温材料综合性能最佳。此时,MA-HA二元相变材料导热系数为0.254 W/(m·K),熔化温度和熔化潜热分别是35.64℃、123.48 J/g,凝固温度和凝固潜热分别是30.98℃、112.54 J/g。在经过1000次吸放热相变循环后,相变温度变化率不超过5%,相变潜热变化率不超过8%。BIM节能模拟表明,在使用保温材料后,建筑外围护结构能耗降幅超过30%。In order to promote the energy conservation of buildings,a binary phase change material was prepared with lauric acid(MA)and palmitic acid(HA),and an insulating material was prepared with expanded perlite as an adsorption carrier,and its properties were studied.Combined with Building Information Modelling(BIM)ener⁃gy-saving simulation,the energy-saving effect of the insulation material was studied.The results showed that when the mass ratio of MA and HA was 70∶30,and the content of MA-HA binary phase change material in the insulation material was 70%,the comprehensive performance of the insulation material was the best.At this point,the thermal conductivity of MA-H A binary phase change material was 0.254 W/(m·K),and the melting temperature and melt⁃ing latent heat were 35.64℃and 123.48 J/g,respectively.The solidification temperature and solidification latent heat were 30.98℃and 112.54 J/g,respectively.After 1000 cycles of heat absorption and release phase change,the change rate of phase change temperature did not exceed 5%,and the change rate of phase change latent heat did not exceed 8%.BIM energy-saving simulation showed that after the use of insulation materials,the energy consump⁃tion of the building envelope structure decreased by more than 30%.

关 键 词：肉豆蔻酸 碳十六酸 相变材料 膨胀珍珠岩 相变潜热 

分 类 号：TB34[一般工业技术—材料科学与工程] TQ316.6[化学工程—高聚物工业]