Anisotropic electro-driven phase change materials inspired by biological structure

被引：9

作者：

Jia, Zhaoying ^{[1
]}

Li, Zaichao ^{[1
]}

Wang, Xuan ^{[1
]}

Hu, Caishuo ^{[1
]}

Tang, Bingtao ^{[1
]}

Zhang, Shufen ^{[1
]}

Zhang, Yuang ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, Frontiers Sci Ctr Smart Mat, State Key Lab Fine Chem, Oriented Chem Engn, Dalian, Peoples R China

[2] Dalian Univ Technol, Frontiers Sci Ctr Smart Mat Oriented Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China

来源：

AICHE JOURNAL | 2024年 / 70卷 / 04期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

carbon fiber; conductive anisotropy; energy conversion; phase change materials; thermal management; ENERGY-CONVERSION; CHANGE COMPOSITES; STORAGE; PERFORMANCE;

D O I：

10.1002/aic.18355

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Electro-driven phase change materials (PCMs) can effectively realize electrothermal conversion and storage and have attracted much attention in the fields of electrothermal therapy and thermal management of electronic devices. How to effectively reduce the leakage current risk of it is a core problem in the application process. In this work, we used carbon fibers and boron nitride to mimic the microstructure of Greta oto butterfly's wing, and composite it with a form-stable PCM-PPEGMA to obtain a thermally conductive enhanced anisotropic electro-driven PCM. The material exhibits high electrothermal conversion and storage efficiency (86.76%, 5 V), high thermal conductivity, excellent electrical anisotropy, and thermal stability because of the well-designed spatial arrangement. The unique bionic structure effectively inhibits the conductive isotropy phenomenon of traditional electro-driven PCMs and significantly reduces the risk of leakage current. On the basis of this situation, the system shows great application potential in the field of electrothermal therapy.

引用

页数：10