A robust membrane with dual superlyophobicity for solving water-caused lubricant deterioration and water contamination

Abstract Lubricants are often contaminated by water in different ways. Water-polluted lubricants extremely accelerate wear corrosion, leading to the deterioration of lubricity performance. Recently, multiphase media superwettability has been developed endow one surface with compatible functions, such as on-demand separation oily wastewater. However, realizing robustness dual superlyophobic solve water-caused lubricant and contamination needed remains challenges. Herein, a robust membrane is presented realize for various lubricant—water emulsions. Compared pure lubricants, purified have equivalent tribology performance, which much better than that water-polluted lubricants. The as-prepared maintains superlyophobicity, high-efficient or purification, excellent performance lubricant, even after immersion hot liquids 24 h, multicycle separation, sandpaper abrasion 50 cycles. accelerates corrosion promote catalytic dehydrogenation generating too harmful carbon-based debris. This work shows great guiding significance recovering purifying membrane.