Abstract：
Slippery liquid-infused porous surface (SLIPS) realized on commercial materials provides various functionalities, such as corrosion resistance, condensation heat transfer, anti-fouling, de/anti-icing, and self-cleaning. In particular, perfluorinated lubricants infused in fluorocarbon-coated porous structures have showed exceptional performances with durability; however, they caused several issues in safety, due to their difficulty in degradation and bio-accumulation. Here, we introduce a new approach to create the multifunctional lubricant-impregnated surface with edible oils and fatty acid, which are also safe to human body and degradable in nature. The edible oil-impregnated anodized nanoporous stainless steel surface shows a significantly low contact angle hysteresis and sliding angle, which is similar with general surface of fluorocarbon lubricant-infused systems. The edible oil impregnated in the hydrophobic nanoporous oxide surface also inhibits the direct contact of external aqueous solution to a solid surface structure. Due to such de-wetting property caused by a lubricating effect of edible oils, the edible oil-impregnated stainless steel surface shows enhanced corrosion resistance, anti-biofouling and condensation heat transfer with reduced ice adhesion.
摘要：
在商业材料上实现的光滑液体注入多孔表面（SLIPS）提供了各种功能，如耐腐蚀性，冷凝传热，防污,除冰/防冰，自我清洁。特别是,在氟碳涂覆的多孔结构中注入的全氟润滑剂显示出优异的性能和耐久性；然而，他们在安全方面造成了几个问题，由于它们难以降解和生物积累。这里,我们介绍了一种新的方法来创建多功能的润滑剂浸渍表面与食用油和脂肪酸，它们对人体也是安全的，在自然界中也是可降解的。食用油浸渍的阳极氧化纳米多孔不锈钢表面显示出显着低的接触角滞后和滑动角，这与氟碳润滑剂注入系统的一般表面相似。浸渍在疏水性纳米多孔氧化物表面中的食用油还抑制外部水溶液与固体表面结构的直接接触。由于由食用油的润滑作用引起的这种去润湿特性，食用油浸渍的不锈钢表面显示出增强的耐腐蚀性，抗生物污染和冷凝传热减少冰的附着力。
