Cooling performance of a bioinspired micro-crystal-bars coated composite fabric with solar reflectance

Yuxiang Wang; Dahua Shou; Songmin Shang; Ka Lok Chiu; Shouxiang Jiang

doi:10.1016/j.coco.2021.100814

Cooling performance of a bioinspired micro-crystal-bars coated composite fabric with solar reflectance

Yuxiang Wang, Dahua Shou, Songmin Shang, Ka Lok Chiu, Shouxiang Jiang

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

Inspired by the cooling performance of the micro-hair from the Saharan silver ants (SSant), we fabricated a novel solar heat shielding fabric with synthesized zinc oxide (ZnO) micro-crystal-bar (MCB) composite. The ZnO MCB composite coating can significantly improve the solar reflectivity of fabric from 69% to 95% (0.4–1.8 μm). A cooling performance experiment reveals that the surface temperature of the modified fabric reduced by 7.6%–17.7% compared to that of an unmodified reference. Furthermore, the results also showed that the modified fabrics have a high far infrared emittance, which can promote effective long wavelength infrared (LWIR) radiation (5–14 μm) and lead to heat dissipation. More so, other important attributes, such as thermal conductivity, solar power intensity and transmittance, as well as mechanical property, also improved significantly after the treatment. In summary, this work provides a unique strategy for the design and fabrication of thermal management fabric for solar heat shielding.

Original language	English
Article number	100814
Journal	Composites Communications
Volume	27
DOIs	https://doi.org/10.1016/j.coco.2021.100814
Publication status	Published - Oct 2021

Keywords

Bioinspired textile
Saharan silver ant
Thermal management
ZnO micro-Crystal-bar

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Polymers and Plastics
Materials Chemistry

More information

10.1016/j.coco.2021.100814

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title = "Cooling performance of a bioinspired micro-crystal-bars coated composite fabric with solar reflectance",

abstract = "Inspired by the cooling performance of the micro-hair from the Saharan silver ants (SSant), we fabricated a novel solar heat shielding fabric with synthesized zinc oxide (ZnO) micro-crystal-bar (MCB) composite. The ZnO MCB composite coating can significantly improve the solar reflectivity of fabric from 69% to 95% (0.4–1.8 μm). A cooling performance experiment reveals that the surface temperature of the modified fabric reduced by 7.6%–17.7% compared to that of an unmodified reference. Furthermore, the results also showed that the modified fabrics have a high far infrared emittance, which can promote effective long wavelength infrared (LWIR) radiation (5–14 μm) and lead to heat dissipation. More so, other important attributes, such as thermal conductivity, solar power intensity and transmittance, as well as mechanical property, also improved significantly after the treatment. In summary, this work provides a unique strategy for the design and fabrication of thermal management fabric for solar heat shielding.",

keywords = "Bioinspired textile, Saharan silver ant, Thermal management, ZnO micro-Crystal-bar",

author = "Yuxiang Wang and Dahua Shou and Songmin Shang and Chiu, {Ka Lok} and Shouxiang Jiang",

note = "Funding Information: The work was supported by the General Research Fund (Project No. 15301017) of Hong Kong and The Innovation and Technology Fund (Project No. ITP/015/18TP) of Hong Kong. Also, the PhD scholarship received from the Hong Kong Polytechnic University is appreciated by Mr Wang Yuxiang. Funding Information: The work was supported by the General Research Fund (Project No. 15301017 ) of Hong Kong and The Innovation and Technology Fund (Project No. ITP/015/18TP ) of Hong Kong. Also, the PhD scholarship received from the Hong Kong Polytechnic University is appreciated by Mr Wang Yuxiang. Publisher Copyright: {\textcopyright} 2021",

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doi = "10.1016/j.coco.2021.100814",

language = "English",

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AU - Shou, Dahua

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AU - Chiu, Ka Lok

AU - Jiang, Shouxiang

N1 - Funding Information: The work was supported by the General Research Fund (Project No. 15301017) of Hong Kong and The Innovation and Technology Fund (Project No. ITP/015/18TP) of Hong Kong. Also, the PhD scholarship received from the Hong Kong Polytechnic University is appreciated by Mr Wang Yuxiang. Funding Information: The work was supported by the General Research Fund (Project No. 15301017 ) of Hong Kong and The Innovation and Technology Fund (Project No. ITP/015/18TP ) of Hong Kong. Also, the PhD scholarship received from the Hong Kong Polytechnic University is appreciated by Mr Wang Yuxiang. Publisher Copyright: © 2021

PY - 2021/10

Y1 - 2021/10

N2 - Inspired by the cooling performance of the micro-hair from the Saharan silver ants (SSant), we fabricated a novel solar heat shielding fabric with synthesized zinc oxide (ZnO) micro-crystal-bar (MCB) composite. The ZnO MCB composite coating can significantly improve the solar reflectivity of fabric from 69% to 95% (0.4–1.8 μm). A cooling performance experiment reveals that the surface temperature of the modified fabric reduced by 7.6%–17.7% compared to that of an unmodified reference. Furthermore, the results also showed that the modified fabrics have a high far infrared emittance, which can promote effective long wavelength infrared (LWIR) radiation (5–14 μm) and lead to heat dissipation. More so, other important attributes, such as thermal conductivity, solar power intensity and transmittance, as well as mechanical property, also improved significantly after the treatment. In summary, this work provides a unique strategy for the design and fabrication of thermal management fabric for solar heat shielding.

AB - Inspired by the cooling performance of the micro-hair from the Saharan silver ants (SSant), we fabricated a novel solar heat shielding fabric with synthesized zinc oxide (ZnO) micro-crystal-bar (MCB) composite. The ZnO MCB composite coating can significantly improve the solar reflectivity of fabric from 69% to 95% (0.4–1.8 μm). A cooling performance experiment reveals that the surface temperature of the modified fabric reduced by 7.6%–17.7% compared to that of an unmodified reference. Furthermore, the results also showed that the modified fabrics have a high far infrared emittance, which can promote effective long wavelength infrared (LWIR) radiation (5–14 μm) and lead to heat dissipation. More so, other important attributes, such as thermal conductivity, solar power intensity and transmittance, as well as mechanical property, also improved significantly after the treatment. In summary, this work provides a unique strategy for the design and fabrication of thermal management fabric for solar heat shielding.

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Cooling performance of a bioinspired micro-crystal-bars coated composite fabric with solar reflectance

Abstract

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ASJC Scopus subject areas

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