Preparation method of polyindole modified graphene oxide/acrylic acid fluorine boron composite antifouling coating

Abstract

The invention discloses a preparation method of a polyindole modified graphene oxide / acrylic acid fluorine boron composite antifouling coating. Comprising the following steps: copolymerizing hexafluorobutyl methacrylate in a main chain of a polymer through free radical polymerization to prepare an acrylic fluoropolymer, and grafting TPBP in a side chain of the acrylic fluoropolymer through proton exchange reaction to prepare an acrylic fluorine-boron polymer (AFBP); gO is prepared through an improved Hummers method, indole is copolymerized on the surface of graphene oxide through an in-situ chemical oxidation method, the surface of the graphene oxide is coated with the indole, and the polyindole modified graphene oxide (PGO) nanofiller is prepared. And carrying out ultrasonic dispersion and spin coating to obtain the polyindole modified graphene oxide / acrylic acid fluorine boron composite antifouling coating. The method has the advantage that the water resistance of the coating is improved. The hydrophobicity of the coating is enhanced, the antifouling property of the coating is improved, and the coating has the characteristic of environmental friendliness.

Description

technical field [0001] The invention relates to the technical field of antifouling coatings, in particular to a preparation method of a polybenzdole modified graphene oxide / acrylic acid fluoride boron composite antifouling coating. Background technique [0002] Currently, around 4,000 marine fouling organisms have been identified worldwide, and these fouling organisms are the main cause of marine fouling. Generally speaking, marine fouling organisms can be divided into two broad categories: microscopic organisms and macrofouling organisms. Microorganisms mainly include bacteria, diatoms and algae spores; macrofouling organisms refer to barnacles, mussels, tubeworms, bryozoans and algae, among which barnacles are the most common macrofouling organisms that cause marine fouling , mature barnacles are encased in a hard, calcareous shell that adheres tightly to the surfaces of facilities exposed to the marine environment; diatoms are also largely biofouling because they contain...

AI Technical Summary

Problems solved by technology

[0005] (1) Due to the marine organisms attached to the surface of the hull, the surface roughness of the hull is increased, resulting in an increase in the weight of the hull and a decrease in sailing speed. Increasing the sailing speed requires higher fuel consumption, which will increase fuel costs and aggravate the emission of harmful gases

[0006] (2) In order to clean up the biofouling on the surface of the hull, the operation frequency of the dry dock will be increased, resulting in the loss of manpower, machinery and time, and the discharge of harmful waste into the seawater

[0007] (3) Accelerate the corrosion of the hull surface, discoloration and deterioration of the coating

The dispersibility of graphene oxide in organic solvents is not ideal, therefore, it is necessary to study the modification of graphene oxide

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