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Sandwich Fibrous PEG Encapsulations for Thermal Energy Storage |
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| Authors: | Kai Yang Xiuling Zhang Dr Mohanapriya Venkataraman Prof Dr Jakub Wiener Xiaodong Tan Prof Dr Guocheng Zhu Prof Dr Juming Yao Prof Dr Jiri Militky |
| Institution: | 1. Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, Studentska, 1402/2, Liberec, Czech Republic;2. Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, Studentska, 1402/2, Liberec, Czech Republic
Contribution: Data curation (supporting), Formal analysis (supporting), Investigation (supporting), Methodology (supporting), Writing - original draft (supporting);3. Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, Studentska, 1402/2, Liberec, Czech Republic Contribution: Funding acquisition (lead), Project administration (equal), Writing - review & editing (lead);4. Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, Studentska, 1402/2, Liberec, Czech Republic Contribution: Conceptualization (supporting), Investigation (equal), Resources (lead);5. Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, Studentska, 1402/2, Liberec, Czech Republic Contribution: Data curation (supporting), Formal analysis (supporting), Methodology (equal), Software (equal), Validation (equal);6. College of Textiles and Engineering, Zhejiang Sci-tech University, No. 5, Second Avenue, Xiasha Education Park, Hangzhou City, P.R. China Zhejiang-Czech Joint Laboratory of Advanced Fiber Materials, Zhejiang Sci-tech University, No. 5, Second Avenue, Xiasha Education Park, Hangzhou City, P.R. China Contribution: Project administration (supporting), Resources (supporting), Supervision (supporting), Validation (supporting);7. School of Materials and Engineering, Zhejiang Sci-tech University, No. 5, Second Avenue, Xiasha Education Park, Hangzhou City, P.R. China School of Materials Science and Chemical Engineering, Ningbo University, No. 8181, Fenghua Road, Jiangbei District, Ningbo City, P.R. China Zhejiang-Czech Joint Laboratory of Advanced Fiber Materials, Zhejiang Sci-tech University, No. 5, Second Avenue, Xiasha Education Park, Hangzhou City, P.R. China Contribution: Resources (supporting), Supervision (supporting), Validation (supporting);8. Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, Studentska, 1402/2, Liberec, Czech Republic Contribution: Funding acquisition (equal), Project administration (equal), Supervision (lead), Validation (lead), Writing - review & editing (equal) |
| Abstract: | Phase change materials (PCMs) textiles have been developed for personal thermal management (PTM) while limited loading amount of PCMs in textiles reduced thermal buffering effect. In this work, we proposed a sandwich fibrous encapsulation to store polyethylene glycol (PEG) with PEG loading amount of 45 wt %, which consisted of polyester (PET) fabrics with hydrophobic coating as protection layers, polyurethane (PU) nanofibrous membranes as barrier layers and PEG-loaded viscose fabric as a PCM-loaded layer. The leakage was totally avoided by controlling weak interfacial adhesion between protection layer and melting PEG. The sandwich fibrous PEG encapsulations had an overall melting enthalpy value ranging from 50 J/g to 78 J/g and melting points ranging from 20 °C to 63 °C by using different PEGs. Besides, introduction of Fe microparticles in PCM-loaded layer enhanced thermal energy storage efficiency. We believe that the sandwich fibrous PEG encapsulation has a great potential in various fields. |
| Keywords: | energy conversion fibrous materials interfaces PEG thermal behavior |