| abstract |
A method for preparing an insulating coating specific for high voltage wires, comprises: (1) feeding tungsten carbide, organic modified bentonite and titanium dioxide in weight parts into a ball mill to milling into powder having a particle diameter of 300 mesh or more, and mixing and stirring the powder and water glass to obtain a mixture; (2) successively putting a polytetrafluoroethylene resin, a vinyl chloride-vinyl acetate resin, an organic silicone modified epoxy resin, hexane diisocyanate, decabromodiphenyl ethane, an acrylate-styrene-vinyl acetate terpolymer, and deionized water into a reactor, keeping the reactor at a constant temperature of 80-100 °C, mixing and stirring for 40 to 60 minutes, leaving the reactor unattended at a room temperature for 4-6 hours; (3) adding styrene, carbon nanotube, nanometer magnesium hydroxide, glycerol, hydroxyethyl cellulose, polyvinyl alcohol, butyl acetate and the mixture prepared in step (1) to the reactor, and after completion of the mixing,discharging the mixture out of the reactor to give the coating product. |