期刊
CHEMICAL ENGINEERING JOURNAL
卷 437, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2022.135056
关键词
Flexible phase change material; Carbon nanotube; Thermoplastic elastomer; Thermal energy storage
资金
- research found of State Grid Jibei Electric Power Research Institute [52018K20007F]
- National Natural Science Foundation of China [51973017]
Phase change materials (PCM) have great potential in energy storage, but their brittleness poses a challenge in practical applications. This study presents a flexible PCM composite that has high enthalpy and can be bent and twisted at room temperature, achieved through the use of sulfur cross linkers and carbon nanotubes.
Phase change materials (PCM), which can release and absorb a large amount of latent heat during phase change, have aroused great interest in the field of energy storage. However, the inherent brittleness of PCM was the trickiest problem in practical applications such as flexible electronic devices and smart textiles. To obtain flexible PCMs, current methods based on physical blending of PCMs and flexible polymers tend to cause uneven composites and leakage of core materials. Here, we report an intrinsically flexible phase change composite with high enthalpy (147.63 J/g), which can be bent and even twisted at room temperature. Thanks to the sulfur cross linkers, PW is filled uniformly in the cross-linked interpenetrating network formed by styrene butadiene styrene (SBS) and carbon nanotubes (CNTs). Meanwhile, the addition of 2 wt% CNT nearly doubled the elongation, and the maximum stress was also increased to 1.47 MPa. This work will give insight on rational design of intrinsically flexible PCMs for electronic devices thermal management and solar-thermal energy storage.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据