Novel semi-interpenetrating network structural phase change composites with high phase change enthalpy

被引:40
作者
Zhang, Yuang [1 ]
Xiu, Jinghai [1 ]
Tang, Bingtao [1 ]
Lu, Rongwen [1 ]
Zhang, Shufen [1 ]
机构
[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China
基金
中国国家自然科学基金;
关键词
form-stable; phase change materials; high enthalpy; polyethylene glycol; semi-interpenetrating network; THERMAL-ENERGY STORAGE; PERFORMANCE ENHANCEMENT TECHNIQUES; CONDUCTIVITY; STABILITY; MICROENCAPSULATION; COMPATIBILITY; CONVERSION; SYSTEMS;
D O I
10.1002/aic.15956
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
High phase change enthalpy, controllable temperature, and stable shape can expand the application of phase change materials (PCMs) in energy storage. In this study, a series of novel form-stable PCMs with high phase change enthalpy (169-195 J/g) and controllable temperature (45.3-61.4 degrees C) were prepared. The PCMs exhibited a semi-interpenetrating polymer network (semi-IPN) structure resulting from the combination of polyethylene glycol (PEG) and a three-dimensional (3-D) network gel. The gel itself featured an inherent phase change characteristic and a 3-D network structure. Thus, it improved the phase transition enthalpy of the materials and facilitated the formation of a semi-IPN that endowed the materials with excellent form-stable properties. In addition, the latent heat of the composites (169-195 J/g) is much higher than most of the previously reported composites using PEG as phase change component (68-132 J/g). (c) 2017 American Institute of Chemical Engineers AIChE J, 64: 688-696, 2018
引用
收藏
页码:688 / 696
页数:9
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