Nano conductive anti-corrosive paint for earth screen

Abstract

The invention provides nano conductive anti-corrosive paint for an earth screen and a method for preparing the same. The paint comprises the following components in percentage by weight: 30 to 50 percent of hydrophilic group-containing epoxy resin film-forming matrix, 10 to 20 percent of nano magnetic ferric oxide, 10 to 30 percent of curing agent and 20 to 50 percent of inert diluent, and the total weight of all components is 100 percent. The anti-corrosive paint of the invention has quite strong adhesive force, so that the paint can be compactly adhered onto the surface of the earth screen so as to prevent the direct contact between the surface of the earth screen and soil and improve the anti-corrosive property of the earth screen; the anti-corrosive paint also has quite high surface shockproof capability; because hydroxyl groups and carboxyl groups exist in hydrophilic group-containing epoxy resin, the paint has hydrophilicity high enough for the paint to better contact surface soil, and consequently the flow-diffusion capability of the earth screen is greatly improved; in addition, the paint also has the advantages of quite high conductive capability, low cost, quite high practicability and high popularization and application value.

Description

technical field [0001] The invention relates to the field of anti-corrosion materials, in particular to a nano-conductive anti-corrosion coating for ground nets and a preparation method thereof. Background technique [0002] As an important security measure to ensure the normal operation of the power system, the ground grid plays an important role in the operation of the power grid. However, because the ground grid is buried deep underground for a long time and the operating environment is special, it is often subject to various corrosions, including micro-battery corrosion, biological corrosion, and uneven corrosion of the medium. Therefore, it is necessary to strengthen the anti-corrosion of the ground grid. [0003] The anti-corrosion methods of the ground grid in the power system mainly include the sacrificial anode method, the forced current method and the method of spraying conductive paint. Operation experience shows that when the sacrificial anode method is used to...

AI Technical Summary

Problems solved by technology

However, the conductivity of carbon powder is not very good, and the expected effect is often not achieved in practical applications.

At the same time, most domestic conductive coatings use hydrophobic resin as the film-forming matrix. Due to the special working environment of the ground net, it has been in contact with the soil with high humidity under the ground for a long time. Soil affinity, so that the dispersion capacity of the ground net is reduced