▎ 摘　　要

NOVELTY - A superhydrophobic conductive coating is obtained by mixing superhydrophobic material (A) containing 15-25 pts. wt. graphene, 55-75 pts. wt. sodium silicate solution, 10-15 pts. wt. 10% sodium hydroxide, 25-45 pts. wt. silanization reagent and 8-15 pts. wt. deionized water, and polymeric emulsion (B) containing 35-55 pts. wt. hard monomer, 35-55 pts. wt. soft monomer, 2-5 pts. wt. functional monomer, 2-10 pts. wt. superhydrophobic material and 1-5 pts. wt. film forming additive. USE - Superhydrophobic conductive coating (claimed). ADVANTAGE - The superhydrophobic conductive coating has uniform waterproofness. DETAILED DESCRIPTION - A superhydrophobic conductive coating comprises superhydrophobic material (A) and polymeric emulsion (B). The superhydrophobic material (A) comprises 15-25 pts. wt. graphene, 2.5-6 pts. wt. water-soluble cationic surfactant, 55-75 pts. wt. sodium silicate solution, 10-15 pts. wt. 10% sodium hydroxide, 25-45 pts. wt. silanization reagent, and 8-15 pts. wt. deionized water. The polymeric emulsion (B) comprises 35-55 pts. wt. hard monomer, 35-55 pts. wt. soft monomer, 2-5 pts. wt. functional monomer, 2-10 pts. wt. superhydrophobic material, 1-5 pts. wt. film forming additive, 1-5 pts. wt. plasticizer, 0.8-1.5 pts. wt. emulsifier, 0.5-1 pt. wt. dispersant, 0.5-1 pt. wt. preservative, 0.05-1 pt. wt. defoaming agent and 0.05-0.1 pt. wt. initiator. The superhydrophobic material (A) is obtained by degrading graphene with deionized water for 25-40 minutes, placing in drying oven at 65-80 degrees C for 4.5-6 hours, adding 2.5-6 pts. wt. water-soluble cationic surfactant to 8-15 pts. wt. deionized water, stirring, adding 15-25 pts. wt. graphene, magnetically stirring for 5-10 minutes, maintaining, cleaning, drying, passing 55-75 pts. wt. sodium silicate solution through cationic resin exchange column with weakly alkaline anion resin exchange column, obtaining silicic acid gel dilute solution, adjusting the pH of the solution to 7-8 using 10% sodium hydroxide solution, adding one-fifth of silicate gel solution into pressure reducer in decompression concentration, gradually adding remaining silicate solution dilute solution, concentrating under reduced pressure at 75-80 degrees C for 20-30 minutes, preparing sodium silicate solution of one half of the mass of the sodium orthosilicate solution, adding graphene to silica-nano sol, ultrasonically processing at 35-50 degrees C for 6-8.5 hours, removing graphene, washing using deionized water, drying at room temperature for 12-24 hours, adding 25-45 pts. wt. silanization reagent, stirring at 20-35 degrees C for 4.5-6 hours, removing graphene, washing using absolute ethanol to the pH of 6.8-7.2, and vacuum-drying at 60 degrees C for 6 hours. The polymeric emulsion is obtained by adding 35-55 pts. wt. hard monomer, 35-55 pts. wt. soft monomer, 2-5 pts. wt. functional monomer and 0.8-1.5 pts. wt. emulsifier to deionized water, homogeneously stirring for 20-35 minutes, obtaining pre-emulsion, stirring pre-emulsion, adding initiator, stirring at 80 degrees C, obtaining emulsion with blue luster, dripping remaining pre-emulsion and initiator, maintaining the temperature at 80-85 degrees C in the stirring speed of 100 rpm, continuously adding 1-5 pts. wt. film forming additive, 1-5 pts. wt. plasticizer, half of dispersant, 0.05-1 pt. wt. defoaming agent and 0.5-1 pt. wt. preservative, stirring at the speed of 80 rpm for 15-30 minutes, and filtering. The obtained polymeric emulsion is maintained for 25-30 minutes, mechanically stirred for 0.5-1.5 minutes, and remaining dispersant and superhydrophobic material are added and continuously stirred for 15-20 minutes at the speed of 100 rpm. The resultant mixture is placed in ultrasonic disperser for dispersion, ultrasonic dispersion is carried out in the ultrasonic power of 300 W for 8-12 minutes at 18-25 degrees C, and the resultant mixture is then maintained for 35-45 minutes to obtain superhydrophobic conductive coating.