Open AccessA Green Route to Prepare Semitransparent Superhydrophobic-Oleophobic Coatings
Author(s) -
Sizhe He,
Xuemei He,
Xuan Cheng,
Lin Huang
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/678/1/012156
Subject(s) - sandpaper , materials science , contact angle , coating , superhydrophobic coating , transmittance , abrasive , composite material , epoxy , atomic force microscopy , nanotechnology , optoelectronics
A series of coating samples were prepared with various combinations of solvents being tested via a two-step dip-coating route. The surface hydrophobicity was studied by measuring water and oil contact angles. Furthermore, the surface topography, optical and abrasive properties of the selected 4 coating samples were examined by atomic force microscopy (AFM), ultraviolet-visible spectrophotometer and friction cycle test, respectively. The best overall properties were achieved with the coating sample prepared by nontoxic epoxy resin-ethanol (Step 1) and isopropanol (Step 2). The water and oil contact angles reached 152.0° and 112.7°, respectively, and water contact angle remained 150.2° upon 5 cycles of the friction test with sandpaper. The transmittance of 80% was obtained in the wavelength ranging from 400 to 800 nm.