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Open AccessArticle

Transport Properties of Electro-Sprayed Polytetrafluoroethylene Fibrous Layer Filled with Aerogels/Phase Change Materials

1
Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, 46117 Liberec, Czech Republic
2
Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, 46117 Liberec, Czech Republic
3
School of Material Science and Engineering, Zhejiang Sci-Tech University, Xiasha Higher Education Zone, Hangzhou 310018, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(10), 2042; https://doi.org/10.3390/nano10102042
Received: 7 September 2020 / Revised: 7 October 2020 / Accepted: 14 October 2020 / Published: 16 October 2020
This work is the first attempt to prepare microporous polytetrafluoroethylene (PTFE) fibrous layers embedded with aerogels/phase change materials. For preparation of this layer, the needle-less electrospray technology of water dispersion of individual components is used. Microstructure characteristics, including surface morphology and particle size distribution, and various properties of the prepared materials were investigated and explained. Transport performance of the fibrous layers embedded with aerogels/phase change materials, such as the transmission of heat, air, and water vapor was evaluated and discussed in details. It was found that the electro-sprayed materials composed by spherical particles with rough surface had compact disordered stacking structure. Aerogels and phase change materials (PCMs) play different roles in determining structural parameters and transport properties of the materials. Those parameters and properties could be flexibly adjusted by optimizing the spinning parameters, changing the content or proportion of the fillers to meet specific requirements. View Full-Text
Keywords: polytetrafluoroethylene; silica aerogel; phase change material; electrospray; thermal properties; water vapor permeability polytetrafluoroethylene; silica aerogel; phase change material; electrospray; thermal properties; water vapor permeability
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MDPI and ACS Style

Xiong, X.; Venkataraman, M.; Yang, T.; Kucerova, K.; Militký, J.; Yang, K.; Zhu, G.; Yao, J. Transport Properties of Electro-Sprayed Polytetrafluoroethylene Fibrous Layer Filled with Aerogels/Phase Change Materials. Nanomaterials 2020, 10, 2042.

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