The invention discloses an anti-
corrosion composite coating for steel rail
fastener elastic strips and bolt spikes and a preparation method and a
coating method thereof. The
composite coating comprises a bottom layer and a
surface layer, wherein the bottom layer is modified
silicone rubber, and the
surface layer is
fluorine-
silicone-modified
acrylic resin. The preparation method comprises the following steps: (1) preparing a bottom layer
coating: heating and mixing the base rubber, the
plasticizer and the filler, adding the modified resin and the antirust agent, performing stirring and cooling, and sequentially adding the cross-linking agent and the catalyst to obtain the modified
silicone rubber; and (2) preparing a
surface layer coating: the
fluorine-
silicon-modified
acrylic resin is prepared by carrying out
silicon modification on
acrylic resin and then carrying out
fluorine modification on the acrylic resin. The coating method is rusty coating. The coating is coated with two
layers of materials; the bottom layer achieves anti-
corrosion performance, and the
adhesive force with the surface of the steel rail is improved; the surface layer realizes hydrophobic self-cleaning and anti-
ultraviolet performance of the surface of the coating; the bottom layer and the surface layer are compatible, have layered migration performance, can be firmly attached to the surface of the track and are good in anti-
corrosion effect; and the coating process is simple, and the coating
workload is reduced.