Development of heat storing poly(acrylonitrile) nanofibers by coaxial electrospinning

Ezgi C.B. Noyan, Emel Onder*, Nihal Sarier, Refik Arat

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

New thermal energy storage materials were developed as poly(acrylonitrile) (PAN) nanofibers with encapsulated phase change materials (PCMs). Sixteen samples composed of PAN shells and PEG or PEGME cores, and one control sample composed of only a PAN shell, were manufactured by coaxial electrospinning. SEM images revealed the formation of randomly distributed, distinct nanofibers with smooth surfaces and cylindrical shapes along their lengths. FTIR results confirmed bicomponent nanofiber structures and TGA results demonstrated their thermal stabilities. Phase change performances of nanofibers were repeatedly examined by DSC analyzes; heating enthalpies ranged from 38 to 133 J g−1 and from 29 to 60 J g−1 for PAN-PEGs and PAN-PEGME samples, respectively, corresponding to good encapsulation efficiencies. These remarkable thermal energy storages were achieved at different melting temperatures (−1 to 60 °C). Textile based sandwich structures containing three different types of PAN-PCM nanowebs demonstrated enhanced thermal properties and buffering function against temperature changes in surrounding.

Original languageEnglish
Pages (from-to)135-148
Number of pages14
JournalThermochimica Acta
Volume662
DOIs
Publication statusPublished - 10 Apr 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

Funding

This work was supported by the Scientific & Technological Research Council of Turkey [TUBITAK213M281], Istanbul Technical University and Istanbul Kültür University. We wish to thank Arçelik A.Ş for their thermal conductivity measurements. This work was supported by the Scientific & Technological Research Council of Turkey [ TUBITAK213M281 ], Istanbul Technical University and Istanbul Kültür University . We wish to thank Arçelik A.Ş for their thermal conductivity measurements.

FundersFunder number
Scientific & Technological Research Council of Turkey
Türkiye Bilimsel ve Teknolojik Araştirma KurumuTUBITAK213M281
T.C. İstanbul Kültür Üniversitesi
Istanbul Teknik Üniversitesi

    Keywords

    • Electrospinning
    • Energy materials
    • Nanocomposites
    • Thermal properties

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