Endogenous Ionic‐Liquid‐Infused Coatings by Phase Separation for Anti‐Icing and Anti‐Bacterial Applications

Abstract

Slippery liquid‐infused porous surfaces have received great attention in anti‐adhesion applications, and ionic liquids are selected as the infiltrated liquid in recent research due to their non‐volatility. Beyond the complicated steps, infiltrating the viscous ionic liquid within a porous structure is challenging during the conventional fabrication process. Herein, a facile method is proposed to fabricate polyurethane‐based slippery ionic‐liquid‐infused coatings in one step through a phase separation process. The solid structure grows from the ionic liquid through a liquid–liquid phases separation process. The coatings perform excellent anti‐bacterial and anti‐icing properties owing to the biocide nature, lubricity, and low freezing point of ionic liquids.

Modification strategy of siloxane antifouling coating: adhesion strength, static antifouling, and self-healing properties

“…It is a basic bionic modification method to structurally modify the surface structure of the siloxane coating and prevent the adhesion of algae and other provincial committees on the surface of the coating from a microscopic distance [96]. Another bionic strategy for antifouling coatings involves slippery liquid-infused porous surface, wherein lubricating antifouling agents like silicone oil are encapsulated within the coating, gradually releasing and ensuring short-term antifouling effects on the coated surface [97]. However, controversies persist regarding bionic antifouling coatings.…”

A Tough and Reusable Ionogel Adhesive for Flexible Strain Sensor

“…11−14 An ionic liquid (IL) is a type of ion compound composed of cations and anions. 15−19 It is characterized by the distinctive chemical structure which imparts several advantageous properties including high ionic conductivity, 20 good thermal stability, 21,22 excellent chemical stability, 23 nonvolatility, 24 low melting point, and low vapor pressure. 15,25,26 These attributes facilitate rich cation−anion interactions within ionogels prepared from ionic liquid or polyelectrolyte liquids, enabling electrostatic interactions with substrate surfaces 27,28 as well as various noncovalent interactions such as ion−dipole interactions.…”

“…An ionic liquid (IL) is a type of ion compound composed of cations and anions. − It is characterized by the distinctive chemical structure which imparts several advantageous properties including high ionic conductivity, good thermal stability, , excellent chemical stability, nonvolatility, low melting point, and low vapor pressure. ,, These attributes facilitate rich cation–anion interactions within ionogels prepared from ionic liquid or polyelectrolyte liquids, enabling electrostatic interactions with substrate surfaces , as well as various noncovalent interactions such as ion–dipole interactions. , Moreover, a diverse range of cations and anions can be employed to engineer ionic liquids with distinctive chemical structures, thereby conferring upon ionogels high ionic liquid content and unique properties such as ionic conductivity, thermal stability, and a broad electrochemical window. , These attributes render high-ionic-liquid-content ionogels promising candidates as a generation of multifunctional, high-performance adhesives. − Rong et al designed an ionogel adhesive prepared using 1-vinyl-3-butylimidazole bis­(trifluoro­methyl­sulfonyl)­imide as a polymeric monomer can adhere stably, with an adhesion force of up to 0.4 MPa and an ion conductivity of 1 × 10 –5 S/m . Wu et al used fluorinated ionic polymer to prepare an ionogel adhesive that can realize underwater self-healing, and its adhesion force reached 0.7 MPa .…”

Room-temperature endogenous lubricant-infused slippery surfaces by evaporation induced phase separation

“…The formation of the eSLIPS involves the in situ growth of a porous structure within the lubricant itself, eliminating the need for the multi-step processes of infiltrating the lubricant into a preprepared porous structure. [21][22][23] The polypropylene-based eSLIPS was fabricated through a thermally induced phase separation process, in which the lubricant also served as the diluent that could dissolve the polymer at an elevated temperature while becoming immiscible upon cooling. Therefore, the eSLIPS can be facilely constructed by casting the polymer/lubricant mixture onto various supports followed by natural cooling.…”