Steel surface corrosion-resistant hydrophobic treatment fluid for marine equipment, and preparation method and application thereof

Abstract

The invention discloses a steel surface corrosion-resistant hydrophobic treatment fluid for marine equipment. The treatment fluid is characterized by comprising the following components at respective concentration: a solvent of a mixture of N-polyvinylpyrrolidone and epoxy resin, nano-poly tetrafluoroethylene with the concentration of 3.0-4.0g / L, nano-graphene with the concentration of 1.5-2.5g / L, and nano-silicon carbide with the concentration of 0.5-1.5g / L. The present invention provides a treatment method using the steel surface corrosion-resistant hydrophobic treatment fluid for marine equipment. The treatment method is as below: forming a randomly distributed bionic texture by using the thermal shock effect generated by micro-arc plasma in a solution; and then forming a wear-resistant corrosion-resistant hydrophobic layer on the steel surface by utilizing a sol-gel method. The invention solves the problems of seawater corrosion and marine microbial corrosion caused by direct contact of the steel surface with water; the steel parts can be processed directly; and the process is simple, and reduces cost.

Description

technical field [0001] The invention relates to a treatment method for wear-resistant, corrosion-resistant and hydrophobic treatment of steel surfaces in seawater, in particular to a treatment method for wear-resistant, corrosion-resistant and hydrophobic treatment of steel surfaces in marine equipment, and belongs to the technical field of metal surface treatment. Background technique [0002] Corrosion protection of steel surfaces in seawater due to chloride ion corrosion and marine microbial corrosion. In order to reduce chloride ion corrosion and reduce marine microbial corrosion, different methods have been used in production and practical application. The wear-resistant, corrosion-resistant and hydrophobic treatment of steel surfaces can achieve the above effects. The patent (Zhu Houxin, Zhang Jun, a self-cleaning waterproof coating and its preparation method, CN201410590728.4) and the patent (Huang Jiangyi, a super-oleophobic and hydrophobic coating and its processing...

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Problems solved by technology

The patent (Zhu Houxin, Zhang Jun, a self-cleaning waterproof coating and its preparation method, CN201410590728.4) and the patent (Huang Jiangyi, a super-oleophobic and hydrophobic coating and its processing method, CN201410421030.X) describe inorganic materials and organic materials respectively. Waterproof coating of materials, but it has problems such as deformation, poor wear resistance and corrosion resistance, which can easily lead to corrosion and damage of steel parts in seawater