The invention provides a method for
coating the surface of an
underwater oleophobic net film with a nano-material. The method comprises the following steps of carrying out chemical
etching on a cleaned and dried stainless wire net film by a chemical
etching agent, carrying out ultrasonic cleaning and
drying, immersing the stainless wire net film in a cation precipitating agent solution so that
chemical modification is realized, taking out the stainless wire net film, carrying out washing by deionized water, carrying out blow-
drying by a
nitrogen flow, immersing the stainless wire net film in a
silicon dioxide dispersion liquid of
graphene oxide so that a
coating process is realized, taking out the treated stainless wire net film, carrying out washing by deionized water, repeating
chemical modification-
coating processes multiple times to obtain a coated stainless wire net film, carrying out
drying, carrying out
calcination at a temperature of 500-550 DEG C in a
nitrogen protective
atmosphere for 3-4h and carrying out cooling to obtain the stainless wire net film finished product. The method is carried out at a normal temperature, has simple processes and a low cost, utilizes an
etching agent and a modified agent with low environment
pollution and does not cause secondary
pollution. The stainless wire net film has strong
corrosion resistance, substantial oil-water separation effects, a long service life and good
escherichia coli inhibition effects.