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Electrospun carbon nanofiber-based flexible films for electric heating elements with adjustable resistance, ultrafast heating rate, and high infrared emissivity

Journal of materials science, 2021-09, Vol.56 (26), p.14542-14555 [Peer Reviewed Journal]

The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2021 ;COPYRIGHT 2021 Springer ;The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2021. ;ISSN: 0022-2461 ;EISSN: 1573-4803 ;DOI: 10.1007/s10853-021-06074-y

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Title:
Electrospun carbon nanofiber-based flexible films for electric heating elements with adjustable resistance, ultrafast heating rate, and high infrared emissivity
Author: Li, Zhenwei ; Lin, Zijia ; Han, Meisheng ; Mu, Yongbiao ; Yu, Jie
Subjects: Carbon fibers ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Classical Mechanics ; Composites & Nanocomposites ; Crystallography and Scattering Methods ; Electric heating ; Electric heating elements ; Electric properties ; Electrical conductivity ; Electrical resistivity ; Electrospinning ; Emissivity ; Equipment and supplies ; Flexibility ; Heat treatment ; Heating ; Heating elements ; Heating rate ; High resistance ; Infrared heating ; Materials Science ; Nanofibers ; Nanomaterials ; Polymer Sciences ; Silicone resins ; Silicones ; Solid Mechanics ; Stretchability ; Water resistance
Is Part Of: Journal of materials science, 2021-09, Vol.56 (26), p.14542-14555
Description: Carbon nanomaterials have shown great potential as electric heating elements in electrothermal applications. However, carbon-based heating elements with high flexibility, ultrafast electrothermal response, low driving voltage, high heating temperature, and stretchability are still lacking. Here, continuous electrospun carbon nanofiber films (CNFFs) and corresponding composite films additionally containing silicone (CSCFs) as electric heating elements are proposed. CNFFs were prepared by electrospinning and subsequent heat treatment, and CSCFs were prepared by composing CNFFs with silicone via hot-pressing procedure. Both of them have shown excellent performance as electrothermal films, such as ultrafast electrothermal response, high resistance adjustability, high flexibility, high operation stability, and high infrared emissivity. In particular, a temperature as high as 200 °C can be reached within 2 s at 8 V. Suitable robustness and flexibility allow CSCFs to bear various deformations, such as bending, twisting, folding, and even stretching by a factor of 1.3, without worsening electrothermal performance. Also, excellent water resistance has been confirmed. The superior electrothermal performance is mainly attributed to the high electrical conductivity, continuous fiber structure, high specific surface area, and adjustability of nanofiber stacking density and thickness of CNFFs. Graphical abstract
Publisher: New York: Springer US
Language: English
Identifier: ISSN: 0022-2461
EISSN: 1573-4803
DOI: 10.1007/s10853-021-06074-y
Source: ProQuest Central

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Electrospun carbon nanofiber-based flexible films for electric heating elements with adjustable resistance, ultrafast heating rate, and high infrared emissivity

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