Research of Thermo-Regulating Fibers Based on the Crosslinked Composite Phase Change Materials of PEGA

Abstract

The novel form-stable composite phase change materials (PCMs) of crosslinked PEGA and P(PEGA-HAM)/PEG gels were synthesized, which based on PEGA . Using crosslinked PEGA and P(PEGA-HAM)/PEG gels as the working substance , PP/PCM thermo-regulating fibers were prepared by blends via melt spinning respectively. TGA results indicate that the crosslinked form-stable PCMs have good thermal stability. The morphology of the surface of PP/PCM thermo-regulating fibers smooth mainly by SEM. The breaking strength of thermo-regulating fibers first increases and then decreases when increased some content of PCM. DSC results indicate the phase enthalpy of PEGA crosslinked gel and its the blend fibers with PP are 122.97J/g and 13.83J/g, while that of P(PEGA-HAM)/PEG crosslinked networks gel and its the blend fibers with PP are 107.48J/g and 4.62J/g respectively.

PCM nanofibrous composites based on PEG/PVA incorporated by TiO2/Ag nanoparticles for thermal energy management

“…13 Form-stable PCMs can be manufactured through electrospinning, composite spinning, microcapsule spinning, coating, or other methods. 14 Electrospinning is simple, low cost and versatile method for production of PCM composites incorporated into/within polymer nanofibers with outstanding properties such as high specific surface area and porosity. 15 In order to encapsulate PCMs through electrospinning, there are two main electrospinning techniques including coaxial electrospinning in form of core-shell fibers and single nozzle electrospinning containing PCMs and polymers in single-phase form.…”

“…In this regard, as an effective solution, such organic PCMs can be added to a polymer or textile support in order to make form‐stable PCM fibrous composites avoiding liquid leakage during thermal cycling 13 . Form‐stable PCMs can be manufactured through electrospinning, composite spinning, microcapsule spinning, coating, or other methods 14 . Electrospinning is simple, low cost and versatile method for production of PCM composites incorporated into/within polymer nanofibers with outstanding properties such as high specific surface area and porosity 15 .…”