The invention discloses insulator anti-
icing coating and a preparation method thereof. The anti-
icing coating is prepared from the following components in parts by
mass: 35-45 parts of fluorosiliconeresin, 4-5.5 parts of aluminum
oxide, 6-8 parts of
silicon dioxide, 2-3 parts of
titanium dioxide, 0.3-0.8 part of dispersing agent, 0.4-0.9 part of surfactant, 0.2-0.9 part of de-
foaming agent, 0.1-0.5 part of catalyst, 0.02-0.08 part of anti-oxidant, 0.2-0.8 part of curing agent and 30-50 parts of
solvent PMA. The preparation method comprises the following steps: separately adding aluminum
oxide,
silicon dioxide and
titanium dioxide into the surfactant, adding absolute ethyl
alcohol, stirring until completely wet while adding, ultrasonically stirring and dispersing,
drying,
wetting and
drying by distilling through PMA, stirring and dispersing after mixing fluorosilicone resin with residual PMA, pouring all
system solution into a grinder to
grind, pouring the de-
foaming agent, the anti-oxidant and the catalyst into the grinder to disperse, adding the curing agent to disperse, thereby obtaining anti-
icing coating. The anti-icing coating is remarkably improved in hydrophobicity performance, is good in anti-ice effect on a
power transmission line, and has surface-
drying time, volume resistivity and
dielectric strength, which meet standards.