Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Coaxial Fibres Incorporated with Phase Change Material for Thermoregulation Applications

Nathalia Hammes
* ORCID logo ,
Claver Pinheiro
,
Iran Rocha Segundo
* ,
Natália Cândido Homem
,
M. M. Silva
ORCID logo ,
Helena P. Felgueiras
,
Graca M.B. Soares
,
Elisabete Freitas
ORCID logo ,
Manuel F. M. Costa
ORCID logo ,
Joaquim Alexandre O. Carneiro
* ORCID logo
Version 1 : Received: 21 February 2024 / Approved: 22 February 2024 / Online: 22 February 2024 (12:23:33 CET)

A peer-reviewed article of this Preprint also exists.

Hammes, N.; Pinheiro, C.; Segundo, I.R.; Homem, N.C.; Silva, M.M.; Felgueiras, H.P.; Soares, G.M.B.; Freitas, E.; Costa, M.F.M.; Carneiro, J.A.O. Coaxial Fibres Incorporated with Phase Change Materials for Thermoregulation Applications. Appl. Sci. 2024, 14, 2473. Hammes, N.; Pinheiro, C.; Segundo, I.R.; Homem, N.C.; Silva, M.M.; Felgueiras, H.P.; Soares, G.M.B.; Freitas, E.; Costa, M.F.M.; Carneiro, J.A.O. Coaxial Fibres Incorporated with Phase Change Materials for Thermoregulation Applications. Appl. Sci. 2024, 14, 2473.

Abstract

Nowadays, the growing concern about improving thermal comfort in textiles, asphalt pavements and buildings has stimulated research into phase change materials (PCMs). However, the incorporation of PCMs directly causes mechanical impacts. Therefore, this study herein reported focuses on designing coaxial phase change fibres using commercial cellulose acetate (CA) or recycled CA obtained from cotton fabrics (CAt) as a coating and polyethylene glycol (PEG) 2000 as a core. The phase change fibres (PCF) were produced by wet spinning, varying the parameters: (i) CA concentration, molecular weight and source (virgin versus recycled); and (ii) PEG concentration and ejection. For phase change recycled fibres (PCFt), PEG concentration and ejection were varied. The fibres were assessed for their optical, chemical, thermal and mechanical properties. Bright-field microscopy images and Scanning Electron Microscopy (SEM) micrographs proved the coaxial structure. Fourier Transform Infrared spectroscopy (FTIR) confirmed the presence of PEG in the core. Thermogravimetric Analysis (TGA) proved the ability of PCFs to tolerate high temperatures. Differential Scanning Calorimetry (DSC) attested to the presence of PEG2000 peaks, since their melting points were close to those of virgin PEG2000, with a slight change in the PCFs and PCFts caused by the protective sheath of CA and CAt.

Keywords

Phase Change Fibres; Core-Shell Fibres; Cellulose Acetate; Polyethylene Glycol 2000; Recycled Cellulose Acetate; Cooling Technologies; Wet Spinning

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Download PDF

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0
Get PDF Cite Share 0
Bookmark BibSonomy Mendeley Reddit Delicious
×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.