Preparation method of resinified graphene anticorrosive paint based on high-temperature mechanochemistry

Abstract

The invention discloses a preparation method of resinified graphene anticorrosive paint based on high-temperature mechanochemistry. The preparation method comprises the following steps: taking graphene or graphene oxide, and adding phenylenediamine into a graphene or graphene oxide aqueous solution for modification pretreatment; adding an organic resin and a solvent, adopting high-temperature mechanochemical method for treatment, and subjecting an obtained solution to centrifugation, suction filtration and drying to obtain a resinified graphene; mixing the resinified graphene with an organic resin, a diluent and an additive, and mechanically stirring to obtain a component A; and uniformly mixing the component A with a component B curing agent to obtain the resinified graphene anticorrosivepaint. According to the invention, the chemical reaction of graphene and the organic resin can be realized through a high-temperature mechanochemical technology; the resinified graphene can be uniformly dispersed in the organic resin, the bonding strength with a film-forming substance is higher, hole defects in a coating are reduced, and the barrier property and mechanical properties of the coating are improved, so that better corrosion resistance is achieved.

Description

technical field [0001] The invention relates to the field of organic anticorrosion coatings, in particular to a method for preparing resinized graphene anticorrosion coatings based on high-temperature mechanochemistry. Background technique [0002] Graphene has become a new choice for shielding fillers in anti-corrosion coatings due to its high specific surface area, excellent permeability resistance, and good thermal stability, which has attracted extensive attention from researchers in the anti-corrosion field. However, the high surface energy makes graphene fillers easy to agglomerate and has poor compatibility with oily organic coatings. Graphene anti-corrosion coatings often fail to achieve the expected use effect and protection ability. [0003] At present, most of the research on the modification of graphene and graphene oxide adopts the chemical grafting method, and graphene and organic substances are connected by covalent or non-covalent bonds through some kind of "...

AI Technical Summary

Problems solved by technology

However, the high surface energy makes graphene fillers easy to agglomerate and has poor compatibility with oily organic coatings. Graphene anti-corrosion coatings often fail to achieve the expected use effect and protection ability

[0003] At present, most of the research on the modification of graphene and graphene oxide adopts the chemical grafting method, and graphene and organic substances are connected by covalent or non-covalent bonds through some kind of "bridging agent" to improve the quality of graphene. Dispersion and its compatibility with organic coatings, complex operations are often difficult to use in actual production

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