A kind of graphene nickel-phosphorus electroless plating solution and its preparation method and application

Abstract

The invention discloses a graphene nickel-phosphorus plating solution and its preparation method and application. The graphene nickel-phosphorus plating solution consists of 0.25-1g of graphene, 20-25g of nickel sulfate, 15-20g of Sodium phosphate, 15g sodium acetate, 8-10g citric acid, 4ml lactic acid, 4ml propionic acid, 41mg compound stabilizer and the distilled water of remainder are formed; Described compound stabilizer is made up of thiourea, potassium iodate and potassium iodide, according to The mass ratio is calculated, that is, thiourea: potassium iodate: potassium iodide is 1:20:20. Its preparation method is to add graphene, nickel sulfate, sodium hypophosphite, sodium acetate, citric acid, lactic acid, propionic acid and composite stabilizer in order to dissolve in distilled water, and then adjust the pH value to 4.2-5.6 to obtain graphene nickel phosphorus chemical Plating solution. The graphene nickel-phosphorus plating solution is used for plating on the surface of steel alloy workpieces to form a nickel-phosphorus-graphene composite plating layer with good wear resistance and high hardness.

Description

technical field [0001] The invention relates to a graphene nickel-phosphorus electroless plating solution and a preparation method and application thereof, that is, a graphene-nickel-phosphorus composite plating layer is formed on the surface of a steel alloy. Background technique [0002] Electroless plating is the most economical means to enhance the corrosion resistance and wear resistance of materials and prolong the service life of materials. Electroless composite plating is a surface treatment process developed from the original single chemical plating, and has the comprehensive properties of both matrix metal and composite particles. Studies have shown that the added composite particles are beneficial to change the structure and performance of the coating, and different types of particles have different effects on the coating. Researchers have successively developed composite coatings with different particles, such as graphite, diamond, Al 2 o 3 wait. However, th...

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Problems solved by technology

[0004] However, there has been no research on electroless plating solutions containing graphene

[0005] Adding graphene to the electroless plating solution to make a composite coating, such as Hu Qinghua prepared Ni-graphene in nickel sulfate solution by using electroless nickel plating method, using graphene oxide flakes as the substrate, and after characterizing it, found that The mass fraction of Ni deposited on the surface of the graphene sheet is high and highly dispersed, but this method has not been extended to the co-deposition of Ni-graphene onto the substrate material

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