2015/03/05 by Yao Lu, Sanjayan Sathasivam, Jinlong Song +3 · 2 citations
Materials Science · Engineering · #Surface Modification and Superhydrophobicity #Fluid Dynamics and Heat Transfer #Electrohydrodynamics and Fluid Dynamics
paper · doi:10.1126/science.aaa0946
openalex publication_date 2015/03/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
Superhydrophobic self-cleaning surfaces are based on the surface micro/nanomorphologies; however, such surfaces are mechanically weak and stop functioning when exposed to oil. We have created an ethanolic suspension of perfluorosilane-coated titanium dioxide nanoparticles that forms a paint that can be sprayed, dipped, or extruded onto both hard and soft materials to create a self-cleaning surface that functions even upon emersion in oil. Commercial adhesives were used to bond the paint to various substrates and promote robustness. These surfaces maintained their water repellency after finger-wipe, knife-scratch, and even 40 abrasion cycles with sandpaper. The formulations developed can be used on clothes, paper, glass, and steel for a myriad of self-cleaning applications.