A kind of highly dispersed modified graphene oxide, its preparation method and anti-corrosion coating

Abstract

The invention discloses high-dispersion modified graphene oxide, a preparation method thereof and anticorrosive paint prepared from high-dispersion modified graphene oxide. The method comprises the following steps: 3-aminobenzeneboronic acid modified graphene oxide is prepared from graphene oxide and 3-aminobenzeneboronic acid through a reaction; high-dispersion modified graphene oxide is preparedfrom triglycidyl isocyanurate and 3-aminobenzeneboronic acid modified graphene oxide through a reaction. Modified graphene oxide has good stability and high dispersion. High-dispersion modified graphene oxide is further uniformly dispersed with matrix resin, a leveling agent, an antifoaming agent, a dispersing agent, a coalescing agent and a diluent, and the anticorrosive paint is obtained and isgood in anticorrosive performance and long in service life. The process is simple, environmentally friendly, efficient and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of paint preparation, and provides a highly dispersed modified graphene oxide, a preparation method thereof and an anti-corrosion paint. Background technique [0002] Corrosion protection plays a prominent role in the modern metalworking industry. A large amount of data shows that corrosion has caused great losses to the national economy and industrialization development. Among them, marine ship corrosion accounts for a large part. Ship corrosion causes a lot of waste to the hull and becomes a potential safety hazard. As a new type of two-dimensional material, graphene has attracted widespread attention due to its excellent physical and chemical properties. Graphene's large specific surface area, excellent electrical and optical properties make it an attractive prospect in various fields. When graphene is applied to anti-corrosion coatings, graphene has the functions of physical isolation and electronic co...

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Problems solved by technology

[0003] The Chinese patent application with the application number 201610878263.1 increases the stability of graphene through secondary oxidation modification of graphene, which is conducive to maximizing the corrosion resistance of graphene itself, so that the prepared coating has excellent adhesion, Hardness, wear resistance and neutral salt spray corrosion resistance, but this method requires more materials, the preparation process is complicated, the cost is high, and the dispersion and acid and alkali resistance are not good

[0004] At present, the way graphene is applied to coatings is mostly to add graphene as a functional filler, which brings about a key problem is how to solve the problem of graphene dispersion stability, which requires modification of graphene

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