Fabrication of Coaxial Electrospun Phase Change Cellulose Acetate/ Polyethylene Glycol Nanofibers toward Thermal Energy Storage

Document Type : Research Article

Authors
babak rezaei
ahmad mousavi shoushtari
reza Mahammad Ali Malek
mohsen askari
Faculty of Textile Engineering Amirkabir University of Technology, Tehran
/amnc.2012.2.7.2
Abstract
In this study, solution coaxial electrospinning technique has been studied to improve the performance and stability shape of phase change materials (PCMs). A well-known PCM; polyethylene glycol (PEG) as core and Cellulose Acetate (CA) as shell were electrospun by coaxial spinneret. Scanning electronic microscopy (SEM) for morphological investigations, Transmission electronic microscopy (TEM) for confirming the core-shell fornication and PCM encapsulation in the shell structure and Differential scanning calorimetry (OSC) for evaluating the thermal properties of core-shell nanofibers were applied. Furthermore, 100 thermal heating and cooling cycles on core-shell nanofibers were carried out, then their thermal stability and morphology performance by using DSC and SEM were studied. Obtained results confirmed the core-shell formation and also show that thermal stability of structure was not changed significantly while shell structure still can effectively support the core against thermal oxidation.
Keywords
Phase Change Materials (PCMs)
Coaxial Electrospinning
encapsulation
core-shell