Epidermal gland inspired self-repairing slippery lubricant-infused porous coatings with durable low ice adhesion

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Abstract

The limited durability of slippery lubricant-infused porous surfaces (SLIPS) restricts their practical applications. Inspired by the epidermal glands of skins, we developed a facile approach to durable SLIPS with gland-like storage and release functions for icephobicity. By introducing a hybrid surfactant as a lubricant into the polydimethylsiloxane (PDMS) matrix, lubricant capsules were formed and mono-dispersed in the matrix, working as gland-like structures to release lubricant. The obtained SLIPS showed durable low ice adhesion strength and thermal durability simultaneously. In detail, the enhanced durability for icephobicity was demonstrated by 20 icing/deicing tests, in which the lubricant remains on the surface; the coatings showed negligible weight loss when stored at 100 °C for 60 h, displaying pronounced thermal durability of the slippery effect. Our current strategy sheds new light on a facile fabrication of mechanically and thermally durable SLIPS for icephobicity.

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Li, T., Zhuo, Y., Håkonsen, V., Rønneberg, S., He, J., & Zhang, Z. (2019). Epidermal gland inspired self-repairing slippery lubricant-infused porous coatings with durable low ice adhesion. Coatings, 9(10). https://doi.org/10.3390/coatings9100602

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