水泥-淀粉胶覆膜型硫酸钠基相变储热材料的制备研究  

Preparation of sodium sulfate-based phase change heat storage materials with cement-starch glue filmed

作　　者：武林 邓跃全[2] 曹瑞 WU Lin;DENG Yuequan;CAO Rui(School of Science and Chemical Engineering,Ningxia Institute of Science and Technology,Shizuishan 753000,China;School of Materials Science and Engineering,Southwest University of Science and technology,Mianyang 621010,China)

机构地区：[1]宁夏理工学院理学与化学工程学院,宁夏石嘴山753000 [2]西南科技大学材料科学与工程学院,四川绵阳621010

出　　处：《新型建筑材料》2024年第10期106-109,130,共5页New Building Materials

基　　金：宁夏高校科研项目(NGY2022160)。

摘　　要：以生态环保的磷酸酯化玉米淀粉胶为基础,十水硫酸钠为芯材,防相分离剂吸水树脂、具有一定储热性能的石膏、水和水泥等为主要原材料,通过造粒、覆膜等工艺制备出强度高、密闭性好而且储热性良好的水泥-淀粉胶覆膜型硫酸钠基相变储热材料。造粒过程中十水硫酸钠、淀粉胶、吸水树脂、水和石膏的最佳用量分别为15.0、0.5、0.3、4.5、23.0 g;覆膜过程中,喷液中的乳液、淀粉胶、水的质量比为1∶2∶10,喷涂覆膜2次,制得的储热材料热效应最大,为36.9 J/g,并且具有无相分离、强度高和不易渗出等优点。Based on the eco-friendly phosphate esterified corn starch glue,we take Na_(2)SO_(4)·10H_(2)O as the core material,antiphase separation agent water-absorbent resin,gypsum,water and cement with certain heat storage performance as the main raw materials,and sodium sulfate-based phase chang heat storage materials with cement-starch glue filmed having high strength,good insulation and good heat storage properies were prepared through granulation and other processes.During the granulation process,the amount of Na_(2)SO_(4)·10H_(2)O,starch glue,water-absorbent resin,water and gypsum is 15.0,0.5,0.3,4.5 and 23.0 g.In the process of filming,the composition ratio of emulsion,starch glue and water is:1∶2∶10,and we spray the particles twice.In the condition,the thermal effect of the prepared heat storage material is the largest,which is 36.9 J/g,and it has the advantages of no phase separation,strong strength and difficult to leak.

关 键 词：石膏 Na_(2)SO_(4)·10H_(2)O 储热材料 水泥 覆膜 热效应 

分 类 号：TU551[建筑科学—建筑技术科学]