Construction of ultra-long service life self-cleaning slippery surface on superhydrophobicity functionalized by ATRP treatment

Benefiting from its low surface energy, low surface tension and high efficiency of droplet mobility, Slippery liquid infused porous surfaces (SLIPS) are being applied in the fields like self-cleaning, anti-icing, thermal transfer etc . Nevertheless, the short service life and the complex preparation procedures are still hindering its further practical applications. In this work, with the combination of UV-curing technique and atom transfer radical polymerization (ATRP) treatment, superhydrophobic surface (SHS) with a chemical stability in a corrosive environment and an excellent mechanical resistance is prepared in a facile way. Profiting from the ultra-high affinity between SHS and lubricant oil, as-prepared SLIPS based on SHS exhibited an ultra-long service life. Compared with other commonly used SLIPS, the service life of resultant SLIPS in this work extends 50 times, which can bear a 3000 mL of continuous water droplet washing. As-prepared SLIPS is a promising candidate for the application in self-cleaning.