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Highly Thermally Conductive Phase Change Composites for Thermal Energy Storage Featuring Shape Memory
Composites Part A: Applied Science and Manufacturing ( IF 8.1 ) Pub Date : 2019-11-18 , DOI: 10.1016/j.compositesa.2019.105706
Fubin Luo , PinPing Yan , Qingrong Qian , Hongzhou Li , Baoquan Huang , Qinghua Chen , Kun Wu , Mangeng Lu

Highly thermally conductive form-stable phase change materials (PCMs) possessing shape memory are designed based on covalent-noncovalent interpenetrating polymer network and boron nitride. The matrix network relies on the composition of two functional species, cured mesogenic epoxy (EO) and polyethylene glycol (PEG). It is demonstrated that the covalent network of EO can trap PEG by forming hydrogen bond with PEG chains. On the basis of EO/PEG networks, by incorporating boron nitride, the thermally conductivity of the PCMs can reach to 2.962 W m-1 K-1. The prepared composites show satisfied thermal energy storage capability and good shape stability when undergo long time heating at 80 °C. In addition, the prepared composite exhibits excellent shape memory function. Diverse functions of the PCMs might produce new applications in thermal energy storage or thermal management fields.



中文翻译:

具有形状记忆功能的高导热相变复合材料,用于热能存储

基于共价-非共价互穿聚合物网络和氮化硼,设计了具有形状记忆的高导热形状稳定相变材料(PCM)。基质网络依赖于两种功能性物质的组成,固化的介晶环氧树脂(EO)和聚乙二醇(PEG)。证明了EO的共价网络可以通过与PEG链形成氢键来捕获PEG。在EO / PEG网络的基础上,通过掺入氮化硼,PCM的导热系数可以达到2.962 W m -1 K -1。当在80°C下长时间加热时,制备的复合材料显示出令人满意的储热能力和良好的形状稳定性。另外,所制备的复合材料表现出优异的形状记忆功能。PCM的多种功能可能会在热能存储或热管理领域中产生新的应用。

更新日期:2019-11-18
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