Bio-based flexible phase change composite film with high thermal conductivity for thermal energy storage

被引：51
作者：
He, Yufang [1 ,2 ]
Li, Hongzhou [1 ,2 ]
Luo, Fubin [1 ,2 ]
Jin, Yanchao [1 ,3 ]
Huang, Baoquan [1 ,2 ]
Qian, Qingrong [1 ,3 ]
机构：
[1] Fujian Normal Univ, Coll Environm Sci & Engn, Fuzhou 350007, Peoples R China
[2] Minist Educ, Engn Res Ctr Polymer Green Recycling, Fuzhou 350007, Peoples R China
[3] Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2021年 / 151卷
基金：
中国国家自然科学基金;
关键词：
A; Polymer-matrix composites (PMCs); Thin films; B; Thermal properties; Thermal conductivity; BORON-NITRIDE; POLYETHYLENE-GLYCOL; GRAPHITE COMPOSITES; EPOXY COMPOSITES; PARAFFIN; GRAPHENE; ENHANCEMENT; FABRICATION; STABILITY; PEG;
D O I：
10.1016/j.compositesa.2021.106638
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a shape-stabilized and flexible phase change film is prepared based on polyethylene glycol (PEG), which is stabilized by the co-operation of cellulose nanofibers (CNF) and expanded graphite (EG). The thermal conductivity of the prepared film is enhanced by boron nitride (BN). The results show that the thermal conductivity of the prepared film can reach to 10.83 W/(m center dot K) along the in-plane direction. The DSC results reveal that the phase change enthalpy of the film can remain 79.46 J/g and stay almost unchanged after 40 heating-cooling cycles. In addition, the leakage testing confirms that the film is form-stable under long heating time and no PEG escapes from the matrix, which might be mainly attributed to the absorption of EG and hydrogen bond barrier of CNF. Experimental results demonstrate that the prepared film can be served as the thermal management and energy storage materials for modern electronic devices.
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页数：8
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