Abstract: Lauric acid/expanded perlite phase change materials(LA/EP-PCMs) were prepared by vacuum absorption method with lauric acid as phase change materials, expanded perlite as skeleton. The microstructure, phase change temperature, latent heat as well as thermal stability of LA/EP-PCMs were investigated by FT-IR, SEM, DSC and TGA, respectively. The results showed that lauric acid could be absorbed in the pore of porous expanded perlite well and had good chemical compatibilities with expanded perlite. As the saturated mass fraction of lauric acid of LA/EP-PCMs is 65%, phase change temperature and latent heat of the phase change materials were determined as 41.3 ℃ and 110.1 J/g. The thermal conductivity was increased from 0.09 W/(m·K) to 0.16 W/(m·K), which was increased by 77.7% when 5% nano graphite fiber (NGF) was added into LA/EP-PCMs as additive. Experiment of melting and frozen showed that the incorporation of NGF improved the thermal release capacity of composite phase change materials, and the thermal conduction mechanism was the formation of thermal conduction network on the outer and inner surfaces of the phase change substrate.
赵思勰,晏华,汪宏涛,李云涛,余荣升,杨健健. 月桂酸/膨胀珍珠岩复合相变材料的制备与热性能研究*[J]. 材料导报编辑部, 2017, 31(10): 107-111.
ZHAO Sixie, YAN Hua, WANG Hongtao, LI Yuntao, YU Rongsheng, YANG Jianjian. Preparation of Lauric Acid/Expanded Perlite Composite Phase Material and Its Thermal Performance. Materials Reports, 2017, 31(10): 107-111.
1 Zalha B, Matl'Jn J M, Cabeza L F, et al. Review on thermal energy storage with phase change:Material,heat transfer analysis and applications[J]. Appl Thermal Eng,2003,23(3):251. 2 Shi Wei, Hou Jingpeng. Temperature control properties of mass co-ncrete with phase change material in different conditions[J]. J Building Mater,2013,16(6):1063(in Chinese). 史巍, 侯景鹏. 不同条件下相变控温大体积混凝土的控温性能[J]. 建筑材料学报,2013,16(6):1063. 3 Zhou Shuangxi, Rong Maoge, Zuo Sheng, et al. Temperature control properties of composite phase change materials in mass concrete[J]. J East China Jiaotong University,2013,30(4):30(in Chinese). 周双喜, 荣茂阁, 左晟, 等. 复合相变储能材料在大体积混凝土中的控温性能[J]. 华东交通大学学报,2013,30(4):30. 4 Liu Chenglou, Tang Guojun. Application and energy saving effect of thermal insulation motar with phase transition and energy storage[J]. Shanghai Coating,2012,50(7):27(in Chinese). 刘成楼,唐国军. 相变储能砂浆的应用及节能效果[J]. 上海涂料,2012,50(7):27. 5 Zhang Yongjuan, Zhang Xiong. Phase change material effect on heat property of mortar[J]. J Tongji University: Nat Sci Ed,2007,35(7):965(in Chinese). 张永娟,张雄. 相变材料对砂浆热效应的影响[J]. 同济大学学报:自然科学版,2007,35(7):965. 6 Ai Mingxing, Cao Liqiang, Guo Xiangyong, et al. Energy efficiency evaluation of phase change energy storage building materials[J]. Product Mater,2008,36(4):40(in Chinese). 艾明星, 曹力强, 郭向勇, 等. 相变蓄能建筑材料的节能评价研究[J]. 产品与材料,2008,36(4):40. 7 Deng Anzhong, Li Shengbo, Shen Xiaodong, et al. An experimental study on phase change heat storage ability of temperature control concreted during phase change[J]. J Logistical Engineering University,2007,23(4):88(in Chinese). 邓安仲,李胜波,沈小东,等. 相变温控混凝土相变储热性能试验研究[J]. 后勤工程学院学报,2007,23(4):88. 8 Wang Jun. Study on the basic throries and preparation of phase change and temperature self-control concrete[D]. Wuhan: Wuhan University of Technology,2011(in Chinese). 王军. 相变控温混凝土的理论基础研究和制备[D]. 武汉: 武汉理工大学,2011. 9 Yang Yongkang, Zhang Xionglu, Sheng Lei. Study of phase change materials apply on controlling hydration heat of concrete[J]. China Concr Cem Product,2007(5):9(in Chinese). 杨永康, 张雄陆, 沈磊. 相变材料用于控制混凝土水化热的研究[J]. 混凝土与水泥制品,2007(5):9. 10 Liu Jiesheng, Yu Yuanyuan, He Xiang. Research on preparation and proprieties of lauric acid/expand perlite phase change materials[J].Energy Buildings,2016,110:108. 11 Sun Dan, Wang Lijiu, Li Changming. Preparation and thermal pro-perties of paraffin/expand perlite composite as form-stable phase change material[J].Mater Lett,2013,108:247. 12 Kara?pekl? A, Sar? A, Kaygusuz K. Thermal characteristics of lA/expanded perlite composite for latent heat thermal energy storage[J].Energy Sources, Part A: Recovery, Utilization, and Environmental Effects,2009,31(10):814. 13 Zhang Hong, Wu Xiaohua, Wang Xiaolei, et al. The structure and properties of lauric acid/hexadecanol/silicon dioxide composite phase change materials[J].J Mater Sci Eng,2010,28(5):672(in Chinese). 张鸿,武晓华,王晓磊,等. 月桂酸/十六醇/二氧化硅复合相变材料的结构与性能[J]. 材料科学与工程学报,2010,28(5):672. 14 Liu Yan, Jiang Xiaoshu, Lu Lei, et al. Research on preparation and properties of capric acid/expand perlite as phase change material[J]. Mater Rev,2011,25(S1):315(in Chinese). 刘燕,蒋晓曙,陆雷,等. 癸酸/膨胀珍珠岩复合储能材料的制备与性能研究[J]. 材料导报,2011,25(专辑17):315. 15 Ma Feng, Li Fei, Chen Minghui, et al. Study on preparation of palimitic acid-hexadecanol/expand perlite composite phase change materials[J].Acta Energiae Solaris Sinica,2010,31(11):1475(in Chinese). 马烽,李飞,陈明辉,等. 棕榈酸-十六醇/膨胀珍珠岩复合相变材料的性能研究[J]. 太阳能学报,2010,31(11):1475. 16 You Chao, Qian Jueshi, Qin Jihui, et al. Effect of early hydration temperature on hydration product and strength development of magnesium phosphate cement (MPC)[J]. Cem Concr Res,2015,78:179. 17 Liu Jingwei. Preparation and thermally conductive mechanism of shape-stabilized phase change materials with enhanced thermal conductivity[D]. Mianyang: Southwest University of Science and Technology,2015(in Chinese). 刘菁伟. 导热增强型定型相变材料的制备及导热机理研究[D]. 绵阳: 西南科技大学,2015.
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2017, Vol. 31 
