Durable solid slippery coating for ice adhesion Reduction via room temperature curing

•Addressing durability challenge of slippery surfaces, which excel in anti-icing but face issues under physical stress.•Merged polysiloxane and perfluoropolyether to create a coating that cures at ambient conditions, enhancing practicality.•Highly water-repellent with a contact angle of 105° and a s...

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Veröffentlicht in:Materials letters 2025-03, Vol.383, p.137948, Article 137948
Hauptverfasser: Xu, Wenting, Shen, Jiayi, Chini, Seyed Farshid, Ou, Junfei
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Sprache:eng
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Zusammenfassung:•Addressing durability challenge of slippery surfaces, which excel in anti-icing but face issues under physical stress.•Merged polysiloxane and perfluoropolyether to create a coating that cures at ambient conditions, enhancing practicality.•Highly water-repellent with a contact angle of 105° and a sliding angle of 20°.•Highly transparent with a mean visible light transmission rate up to 90%.•Retained hydrophobic properties after 200 abrasions, slashing ice adhesion on aluminum by 96%. Slippery liquid-infused porous surfaces (SLIPS) have garnered significant attention for their potential in anti-icing and anti-fouling applications. However, these surfaces often struggle to maintain integrity under physical stress. Herein, we engineered a durable coating by combining polysiloxane with perfluoropolyether alcohol. The resulting clear solution can be uniformly applied to various materials, followed by room temperature curing. The coating achieves a contact angle of about 105° and a sliding angle of 20°. It also retains high transparency, with up to 90 % visible light transmission. The coating’s durability is evident in its ability to maintain a water contact angle of around 95° after 200 abrasion cycles. It significantly reduces ice adhesion on glass from 410 kPa to 15 kPa and remains effective even after 100 icing-deicing cycles, with ice adhesion stabilizing at approximately 50 kPa.
ISSN:0167-577X
DOI:10.1016/j.matlet.2024.137948