丙烯酸树脂-正十二烷醇相变微胶囊制备及性能表征

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鲁进利^1*，李洋²，韩亚芳¹，钱付平¹

1. 安徽工业大学建筑工程学院，安徽马鞍山 243032 2. 安徽工业大学能源与环境学院，安徽马鞍山 243032

收稿日期:2018-09-17修回日期:2018-10-30出版日期:2019-06-22发布日期:2019-06-20
通讯作者:鲁进利

基金资助:国家自然科学基金;安徽省自然科学基金

Preparation and properties characterization of microencapsulated phase change materials using acrylic resin copolymers/n-dodecanol

Jinli LU^1*, Yang LI², Yafang HAN¹, Fuping QIAN¹

1. School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan, Anhui 243032, China 2. School of Energy and Environment, Anhui University of Technology, Ma'anshan, Anhui 243032, China

Received:2018-09-17Revised:2018-10-30Online:2019-06-22Published:2019-06-20
Contact:LU Jin-li

摘要/Abstract

摘要： 微胶囊化相变材料具有储能密度高、相变温度近似恒定、便于储存和输运等特点，在热能储存、输运和利用领域具有广泛的应用前景。本工作采用悬浮聚合法辅以超声辐照手段合成了以正十二烷醇为芯材、丙烯酸树脂为壳材的新型高相变潜热相变微胶囊(MEPCM)颗粒。用扫描电子显微镜(SEM)、傅里叶红外光谱仪(FT-IR)、差式扫描量热仪(DSC)、热重分析仪(TGA)和激光粒度仪(LPSA)等设备对微胶囊性能进行了表征。结果表明，所制相变微胶囊呈较规则球体，粒径为638.14~1478.65 nm，中位径d50为933.91 nm。冷却过程中微胶囊芯呈两种不同的结晶过程，囊芯含量为43%，与设计值50%较接近，包覆率达86%，熔化相变潜热为93.31 kJ/kg；包覆后的相变材料融化温度为22.26℃，过冷度从4.61℃降至2.13℃。壳材不与芯材反应。MEPCM质量降低起始温度略高于纯正十二烷醇，封装可改善相变材料的热稳定性，该相变微胶囊具有良好的潜热储存能力和较快的温度变化响应速度。

引用本文

鲁进利李洋韩亚芳钱付平. 丙烯酸树脂-正十二烷醇相变微胶囊制备及性能表征[J]. 过程工程学报, 2019, 19(3): 617-622.
Jinli LU Yang LI Yafang HAN Fuping QIAN. Preparation and properties characterization of microencapsulated phase change materials using acrylic resin copolymers/n-dodecanol[J]. Chin. J. Process Eng., 2019, 19(3): 617-622.

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