化工进展 ›› 2022, Vol. 41 ›› Issue (2): 827-836.DOI: 10.16085/j.issn.1000-6613.2021-0607

• 材料科学与技术 • 上一篇    下一篇

十二水磷酸氢二钠相变储能材料研究进展

曾最(), 罗凯(), 叶伟梁, 费华, 王艳, 刘景滔   

  1. 江西理工大学土木与测绘工程学院,江西 赣州 341000
  • 收稿日期:2021-03-25 修回日期:2012-05-14 出版日期:2022-02-05 发布日期:2022-02-23
  • 通讯作者: 罗凯
  • 作者简介:曾最(1997—),女,硕士研究生,研究方向为相变材料特性。E-mail:ZENGZUI886@163.com
  • 基金资助:
    国家自然科学基金(51666004);江西省自然科学基金(2020BABL214038)

Research progress of disodium hydrogen phosphate dodecahydrate phase change material

ZENG Zui(), LUO Kai(), YE Weiliang, FEI Hua, WANG Yan, LIU Jingtao   

  1. School of Architectural and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
  • Received:2021-03-25 Revised:2012-05-14 Online:2022-02-05 Published:2022-02-23
  • Contact: LUO Kai

摘要:

水合盐相变材料因其高能量储存率与理想的相变温度成为储热领域的热门材料,在建筑节能、太阳能应用、冷链运输、衣物纺织、航空航天领域都有广阔的发展前景。十二水磷酸氢二钠(disodium hydrogen phosphate dodecahydrate,DHPD)作为典型的无机水合盐相变材料,具有相变温度适中(35℃左右)、潜热值高(256.6J/g左右)、价格低廉等优点。然而,与大多数水合盐相同,过冷与相分离的问题限制了其实际应用,对此十二水磷酸氢二钠的研究多侧重于成核剂和增稠剂对该问题的改善,近年来也有学者开始研究该水合盐与其他材料的复合体系。本文介绍了各类成核剂与增稠剂在该水合盐中的应用情况,回顾了十二水磷酸氢二钠与其他水合盐、有机脂肪酸、矿物质基复合体系的研究进展与应用,分析表明这些复合材料较单一水合盐性能更加全面与优越,继续寻找新的材料推进复合体系的丰富性以提升其性能与应用范围会是后续研究的重点。

关键词: 十二水磷酸氢二钠, 相变, 过冷, 相分离

Abstract:

Hydrated salt phase change materials have become popular materials in the field of heat storage due to their high energy storage rate and ideal phase change temperature. They have broad prospects in the fields of building energy saving, solar energy application, cold chain transportation, clothing textile and aerospace. Disodium hydrogen phosphate dodecahydrate (DHPD) is a typical inorganic hydrated salt phase change material, which has the advantages of moderate phase change temperature (about 35℃), high latent heat value (about 256.6J/g) and low price. However, similar to most hydrated salts, the problems of supercooling and phase separation limit their practical application. In this regard, the research on disodium hydrogen phosphate dodecahydrate mainly focuses on the improvement of the problem by nucleating agent and thickening agent. In recent years, some scholars have begun to study the composite system of the hydrated salt and other materials. This paper reviewed the improvement of the thermal properties of the hydrated salt by various nucleating agents and thickeners, and the research progress and application of composite systems with other hydrated salts, organic fatty acids and minerals.The analysis showed that the properties of these composite materials were more comprehensive and superior than those of single hydrated salt. Further research would focus on finding new materials to promote the richness of the composite system to improve its performance and application.

Key words: disodium hydrogen phosphate dodecahydrate, phase change, supercooling, phase separation

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