Economics at your fingertips  

Fabrication and characterization of phase change material composite fibers with wide phase-transition temperature range by co-electrospinning method

S.I. Golestaneh, A. Mosallanejad, G. Karimi, M. Khorram and M. Khashi

Applied Energy, 2016, vol. 182, issue C, 409-417

Abstract: An innovative electrospun form-stable phase change composite material is fabricated by combining binary fatty acid eutectics of capric-lauric acid (CA-LA) and capric-palmitic acid (CA-PA) as the phase change materials (PCMs) and polyethylene terephthalate (PET) as the supporting matrix. The encapsulated PCM composite fibers are produced by co-electrospinning of different fibers at various PCM-to-PET ratios of 50/100, 70/100, 100/100 and 120/100. Thermal behavior and characteristics of individual fatty acids, fatty acid eutectics and composite fibers as well as the structural morphology of the composite fibers are characterized by differential scanning calorimetry (DSC), thermogravimetric analyses (TGA), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR). Scanning electron microscopy images revealed that the average diameter of the composite fibers is slightly increased by increasing the PCM contents. Comparison of FT-IR plots for fatty acids and PET with those of composite fibers containing PCMs clearly indicates that no chemical reaction occurred between PCM and PET matrices. In addition, thermogravimetric analysis results have shown that composite fibers have two steps of degradation which correspond to decomposition of PCM molecular chains and PET structure, respectively. Moreover, DSC results have indicated that enthalpy of composite fibers is improved by increasing PCM contents while no considerable change is observed in phase-transition temperature. Compared to previous studies, the present fabricated co-electrospun composite fibers offer wider phase-transition temperature range (−9 to 34°C) and higher enthalpy values even with lower amounts of PCM. Therefore, these composite fibers are very promising for use in near ambient storage and retrieval energy systems.

Keywords: Fatty acid eutectics; Composite phase change material (PCM); Co-electrospinning; Thermal energy storage/retrieval; Fiber (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations View citations in EconPapers (2) Track citations by RSS feed

Downloads: (external link)
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link:

Ordering information: This journal article can be ordered from
http://www.elsevier. ... 405891/bibliographic

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Series data maintained by Dana Niculescu ().

Page updated 2018-02-24
Handle: RePEc:eee:appene:v:182:y:2016:i:c:p:409-417