Robust TiN-based photothermal superhydrophobic coating with sandwich structure for effective anti−/de-icing applications

Photothermal superhydrophobic surfaces are prospective to become ideal anti−/de-icing surfaces because of their icing delay and rapid photothermal deicing property. Herein, a universal photothermal superhydrophobic composite coating (PSCC) was robustly sandwiched a photothermal layer based on hydrop...

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Bibliographic Details
Published in:Progress in organic coatings 2024-12, Vol.197, p.108816, Article 108816
Main Authors: Wang, Lei, Ding, Siping, Wang, Xuefen
Format: Article
Language:English
Subjects:
Anti−/de-icing
Multi-layer design
Photothermal conversion
Self-cleaning
Superhydrophobic coating
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Summary:Photothermal superhydrophobic surfaces are prospective to become ideal anti−/de-icing surfaces because of their icing delay and rapid photothermal deicing property. Herein, a universal photothermal superhydrophobic composite coating (PSCC) was robustly sandwiched a photothermal layer based on hydrophobically modified titanium nitride (TiN) composite spherical nanoparticles (TiN@SiO2@OTES) between polydimethylsiloxane (PDMS) double layers (the top layer acting for protection and the bottom for thermal insulation and adhesion with the substrate). Due to the high photothermal conversion efficiency (66.0 %) of TiN nanoparticles, the composite coating demonstrated a satisfactory anti−/de-icing efficiency with a stable icing delay time (690 s at 1 sun and − 10 °C) and a fast photothermal de-icing capability (120 s under 1 sun and − 10 °C). In addition, the coating could maintain super-hydrophobicity exhibiting good durability and stability in the lash of sand and water due to the multi-layer design reinforced by PDMS, which was also favorable for residue-free removal of surface to achieve the self-cleaning. Overall, the robust corrosion-resistant photothermal superhydrophobic coating showed a potential for anti−/de-icing application. [Display omitted] •Core-shell structured TiN@SiO2@OTES microspheres were synthesized for photothermal function in composite coatings.•Sandwich structure was designed to ensure the robustness and corrosion resistance of the coating.•The light-heat conversion efficiency of the functional coating was up to 66.0 %.•The composite coating possessed high anti-icing/de-icing capability.
ISSN:0300-9440
DOI:10.1016/j.porgcoat.2024.108816