作者：Junwen Huang，Houyong Yu，Somia Yassin Hussain Abdalkarim，Jaromir Marek，Jiri Militky，Yingzhan Li，Jumi
关键字：Solid-solid PCMs，Electrospinning，Polyethylene glycol
论文来源：期刊
具体来源：Advanced Fiber Materials
发表时间：2020年

In this work, shape-stabilized solid-solid phase change materials (PCMs)

were fabricated by simply electrospinning poly-ethylene glycol (PEG) and

polyvinyl alcohol (PVA). Owing to the strong hydrogen bonds and entanglement

between those molecular chains of PEG and PVA, PEG was packaged by PVA. The

morphological structures, thermal stability and thermal energy storage

properties of those fbers were investigated. SEM results showed that those

electrospun PVA/PEG composite membranes hold a three-dimensional nonwoven web

structure even the content of PEG as high as 70%. The thermal energy storage

ability of those composite fbers increased with the increase of the content of

PEG. The heat enthalpies of PEG/PVA=7/3 were as high as 78.806 J/g. Moreover,

those composite fbers had excellent thermal stability. After 100 heating and

cooling cycles, there was almost no obvious change in the melting enthalpy and

crystallization enthalpy. Those fbers still maintained good thermal regulation.

The simple preparation process, low cost of raw materials and excellent

stability