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摘要
针对相变材料在相变过程中存在液相泄漏的问题,采用直接浸渍法将相变材料封装入不同的载体(硅藻土、膨润土、膨胀珍珠岩)中,制备出不同载体的复合相变材料。通过扫描电镜(SEM)、X射线衍射(XRD)、差示扫描量热(DSC)、红外光谱(FT-IR)等手段对复合相变材料进行表征。结果表明:复合相变材料同样具有较高的热值,3种不同载体的复合相变材料的相变焓分别为112.00J/g、91.49J/g和120.52J/g,饱和吸附时相变材料的占比分别是67.29%、54.98%和72.41%,并综合对比不同载体的复合相变材料,选择膨胀珍珠岩为最优性价比载体材料。
Abstract
Aiming at the problem of liquid phase leakage in phase change materials during phase transition,the phase change material was encapsulated into different carriers (diatomite,bentonite,expanded perlite) by direct impregnation,prepared composite phase change materials with different carriers.The materials were characterized by SEM,XRD,DSC FT-IR,etc.The results shown:the materials also had a high calorific value,and the phase transition enthalpy was 112.00J/g,91.49J/g,and 120.52J/g,respectively,the proportion of the materials in saturated adsorption was 67.29%,54.98%,and 72.41%,respectively.And comprehensive comparison of the materials with different carriers,choose EP as the best cost-effective carrier material.
关键词
复合相变材料
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封装
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热性能
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膨胀珍珠岩
Key words
composite phase change material
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encapsulation
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thermal property
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expanded perlite
不同载体的复合相变材料的制备及热性能研究[J].
化工新型材料, 2020, 48(7): 57-59 DOI:10.19817/j.cnki.issn 1006-3536.2020.07.013
[1] 孟多.定形相变材料的制备与建筑节能应用[D].大连:大连理工大学,2010.
[2] Butler D.Architecture:architects of low-energy future[J].Nature,2008,452:520-523.
[3] 葛文彬.复合相变材料的制备及其在石膏制品中的应用[D].合肥:安徽建筑大学,2015.
[4] 谭羽非.新型相变蓄能墙体的应用探讨[J].新型建筑材料,2003(2):3-5.
[5] 柳馨.芒硝基复合相变储能材料热性能及封装材料研究[D].西宁:青海大学,2017.
[6] Xiao L G,Zhao M Y,Hu H L.Study on graphene oxide modified noirganic phase change materials and their packaging behavior[J].Journal of Wuhan University of Technology(Materials Science),2018,33(4):788-792.
[7] Khan M M A,Saidur R,Al-Sulaiman F A.A review for phase change materials (PCMs) in solar absorption refrigeration systems[J].Renewable and Sustainable Energy Reviews,2017,76:105-137.
[8] 李建立,薛平,丁文赢,等.定形相变材料研究现状[J].化工进展,2007,26(10):1425-1428.
[9] 张东,康祥,李凯莉.复合相变材料研究进展[J].功能材料,2007,38(12):1936-1940.
[10] 肖力光,王敬维.氧化铝改性Na2SO4·10H2O/Na2HPO4·12H2O二元相变材料研究[J].吉林建筑大学学报,2019(4):32-36.
基金资助
“十三五”国家重点研发计划(2018YFD1101001);长春市科技计划项目(18DY028)
