The research article “Effect of halloysite nanotubes on multifunctional properties of coaxially electrospun poly(ethylene glycol)/polyamide-6 nanofibrous thermal energy storage materials”, co-authored by METU member Prof. Göknur Bayram, has been published in Thermochimica Acta.
Coaxial electrospinning of poly(ethylene glycol) (PEG)/polyamide 6 (PA6) was successfully used in development of nanofibrous thermal energy storage (TES) material. Halloysite nanotubes (HNTs) were introduced into the core/shell structured TES materials at various concentrations (0.5, 1, 3 and 5 wt. %). Surface activation of HNT was also conducted by piranha etching in order to increase the affinity between piranha-etched nanotubes (HNT-P) and PEG. The core/shell structured materials were characterized using SEM, FTIR, TGA, DSC, tensile and thermal cyclic tests. With incorporation of 3 wt. % HNT-P into the core/shell nanofibers, tensile modulus and latent heat of melting values were increased by 25 % and 21 %, respectively. Additionally, PEG encapsulation efficiency of the neat core/shell nanofibers was increased from 78 % to 96 % with 3 wt. % HNT-P addition. The neat core/shell samples preserved 88 %, whereas 3 wt. % HNT and HNT-P added nanofibrous samples preserved 94 % of their initial melting enthalpies.
Yilmaz, R. B., Bayram, G., & Yilmazer, U. (2020). Effect of halloysite nanotubes on multifunctional properties of coaxially electrospun poly(ethylene glycol)/polyamide-6 nanofibrous thermal energy storage materials. Thermochimica Acta, 690 doi:10.1016/j.tca.2020.178673
Prof. Göknur Bayram
|Web of Science/Publons Researcher ID: ABA-5217-2020|
|firstname.lastname@example.org||Scopus Author ID: 55956248500|
|About the author||ORCID: 0000-0001-7169-8344|
Coaxial electrospinning; Composite nanofibers; Halloysite nanotubes; Nanoencapsulated phase change material; Poly(ethylene glycol)/polyamide-6 core/shell nanofibers; Thermal energy storage material
Yilmaz, R.B. (METU), & Yilmazer, U. (METU)
This study was financially supported by the Middle East Technical University (Research Project Number: YLT-304-2018-3577) and the Scientific and Technological Research Council of Turkey (TUBITAK) ( BIDEP 2210-C ).