Self‐Supplying Liquidity Oil‐Adsorbed Slippery Smooth Surface for Both Liquid and Solid Repellency,Advanced Materials Interfaces

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Self‐Supplying Liquidity Oil‐Adsorbed Slippery Smooth Surface for Both Liquid and Solid Repellency
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2020-01-13 , DOI: 10.1002/admi.201901818
Kengo Manabe ₁ , Miki Nakano ₁ , Yuko Hibi ₁ , Koji Miyake ₁

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Inspired by pitcher‐plants, slippery liquid‐infused surfaces (LISs) comprised of a textured/smooth base‐layer and a liquid‐layer are an exciting emerging class of super‐repellent surfaces. Herein, a smooth LIS with a flat base‐layer is developed as a multifunctional tribosurface, which is termed a friction‐reducing liquidity oil‐adsorbed tribo‐surface (FLOAT). The FLOAT is constructed via a novel self‐supplying lubricant strategy from liquid‐adsorbed smooth surfaces based on π–COOH interactions at the interface between the solid base‐layer and the infused‐liquid‐layer, resulting in a drastic friction reduction. The FLOAT demonstrates a friction coefficient of 0.05 for loads less than the strength of the coating; for loads greater than or equal to the strength of the coating, a friction coefficient of 0.08 is achieved by holding the liquid‐layer between the FLOATs base‐layer and the friction object using a self‐supplying liquid‐layer based on the interactions of the phenyl groups at the selectively collapsing concaves of the coating. Furthermore, the FLOAT easily sheds off both viscous and viscoelastic materials, shows high transparency, and can be easily fabricated using a controllable patterning surface. The FLOAT demonstrated herein shows potential as a next‐generation tribosurface and provides new insights for the design of multifunctional liquid surfaces for various practical applications.

中文翻译：

具有液体和固体排斥性的自给流动性油吸附光滑表面

受捕虫草启发，光滑的液体注入表面（LIS）由带纹理的/光滑的基层和液体层组成，是令人兴奋的新兴超驱逐性表面。在此，开发了具有平坦基层的光滑LIS作为多功能摩擦表面，这被称为降低摩擦的流动性油吸附摩擦表面（FLOAT）。FLOAT是基于固体基础层和注入的液体层之间的界面处的π–COOH相互作用，通过一种从液体吸附的光滑表面上的新型自给润滑剂策略构造而成的，从而大大降低了摩擦。FLOAT的载荷小于涂层强度时的摩擦系数为0.05；对于大于或等于涂层强度的载荷，摩擦系数为0。通过基于涂料选择性塌陷的凹口处苯基的相互作用，使用自补液层将液体层保持在FLOATs基础层和摩擦对象之间，可以实现08。此外，FLOAT容易脱落粘性和粘弹性材料，显示高透明度，并且可以使用可控的图案化表面轻松制造。本文演示的FLOAT具有作为下一代摩擦表面的潜力，并为各种实际应用的多功能液体表面的设计提供了新的见识。FLOAT易于脱落粘性和粘弹性材料，显示高透明度，并且可以使用可控的图案化表面轻松制造。本文演示的FLOAT具有作为下一代摩擦表面的潜力，并为各种实际应用的多功能液体表面的设计提供了新的见识。FLOAT易于脱落粘性和粘弹性材料，显示高透明度，并且可以使用可控的图案化表面轻松制造。本文演示的FLOAT具有作为下一代摩擦表面的潜力，并为各种实际应用的多功能液体表面的设计提供了新的见识。

更新日期：2020-01-13

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