PREPARATION AND THERMAL PROPERTIES OF HYBRID SHELL PHASE CHANGE MICROCAPSULES

被引：0
|
作者：
Wang Z. [1 ]
Luan J. [1 ]
机构：
[1] School of Energy and Environment, Shenyang University of Aeronautics and Astronautics, Shenyang
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 09期
关键词：
nanomaterials; phase change heat storage; renewable energy; thermal properties; titanium dioxide;
D O I：
10.19912/j.0254-0096.tynxb.2022-0743
中图分类号：
学科分类号：
摘要：
In-situ polymerization was adopted to prepare a structure- stable and leakproof phase change microcapsule，which was composed of paraffin as heat storage core material，titanium dioxide and chitosan as shell and graphene nanoplatelets（GNP）as thermal conductive filler. SEM、FTIR、TGA、DSC and thermal conductivity tester were used to investigate the effect of different core-shell ratio and GNP filling amount on the microstructure ，surface functional groups，thermal stability，phase transformation and thermal conductivity of microcapsules. The results indicated that microcapsules have a compact structure and good leakage resistance. The maximum phase change latent heat of the microcapsules is 134.78 J/g，and the corresponding coating rate is 75.51% . The thermal conductivity of microcapsules increased by 261.5% due to the introduce of GNP. © 2023 Science Press. All rights reserved.
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页码：527 / 531
页数：4
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