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Graphene modified electrostatic anti-fouling paint, and preparation method and applications thereof

A graphene-modified, anti-fouling coating technology, applied in anti-fouling/underwater coatings, conductive coatings, polyurea/polyurethane coatings, etc., can solve the problems of short anti-fouling time, large marine environmental pollution, and insignificant effects , to achieve the effects of long antifouling time, no toxic and side effects, and easy engineering preparation and construction

Active Publication Date: 2018-11-13
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems that the existing marine equipment needs to prevent marine biofouling, and the existing marine antifouling coatings have a large pollution to the marine environment, the effect of preventing marine biofouling is not significant, and the antifouling time limit is short, the present invention provides a The graphene-modified electrostatic antifouling coating and its preparation method and application not only have remarkable effect in preventing marine biofouling, have long antifouling effect, are environmentally friendly, have no toxic side effects, and do not pollute the marine environment, but also have a simple preparation method and are easy to engineer Preparation and construction, with good engineering and industrialization prospects

Method used

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  • Graphene modified electrostatic anti-fouling paint, and preparation method and applications thereof
  • Graphene modified electrostatic anti-fouling paint, and preparation method and applications thereof
  • Graphene modified electrostatic anti-fouling paint, and preparation method and applications thereof

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Experimental program
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Embodiment approach

[0024] (1) The positively charged antifouling functional group adopts at least one of positively charged micron particles and cationic polyacrylamide; the positively charged micron particles may be positively charged micron non-metallic particles It is also possible to use positively charged micron metal particles, for example, the positively charged micron particles can be positively charged micron flake aluminum powder particles.

[0025] (2) The graphene conductive reinforcing filler adopts at least one of single-layer graphene, double-layer graphene, or few-layer graphene. The few-layer graphene refers to 3-10 layer graphene. Such as figure 2 As shown, graphene is a monoatomic layer crystal with carbon atoms distributed on a two-dimensional honeycomb crystal lattice. It is a stable compound composed of a six-membered ring of carbon elements. The thickness of a layer of graphite is about 0.335nm; in the graphene crystal The CC bond bond length is 0.142nm, and 3 of the 4 val...

Embodiment 1

[0036] A graphene modified electrostatic antifouling coating, and its preparation method includes: using positively charged micron-level flake aluminum powder particles as the positively charged antifouling functional group, using single-layer graphene, double-layer graphene and few-layer graphite The mixture of olefins is used as graphene conductive reinforcing filler, acrylic resin is used as film-forming resin, isocyanate is used as curing agent, xylene is used as diluent, and polyamide wax of model P200X produced by British Haimingsi is used as anti-settling agent. Polyacrylic acid is used as the dispersant, and the weight ratio of each component is as follows:

[0037]

[0038] According to the weight ratio of the above components, add positively charged micron particles, graphene conductive reinforcing filler, and polyacrylic acid to xylene for ultrasonic dispersion, then add polyamide wax, acrylic resin, and isocyanate, and stir and mix Evenly, the graphene modified electr...

Embodiment 2

[0045] A graphene-modified electrostatic antifouling paint, and its preparation method includes: using a cationic polymer with a solid content of 90%, a molecular weight of 5-18 million, and a cation concentration of 20-80 produced by Wuxi Fengmin Environmental Protection Technology Co., Ltd. Acrylamide is used as a positive antifouling functional group, a mixture of single-layer graphene, double-layer graphene, and few-layer graphene is used as graphene conductive reinforcing filler, fluorocarbon resin is used as film-forming resin, isocyanate is used as curing agent, A mixed solution of xylene and butyl acetate is used as a diluent, a polyamide wax of model P200X produced by British Heimings is used as an anti-settling agent, and the cationic polyacrylamide is used as a dispersant, and each component The weight ratio of is as follows:

[0046]

[0047]

[0048] According to the weight ratio of the above components, add cationic polyacrylamide and graphene conductive reinforcing...

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Abstract

The invention discloses a graphene modified electrostatic anti-fouling paint, and a preparation method and applications thereof. The graphene modified electrostatic anti-fouling paint comprises following ingredients, by weight, 2.5 to 6 parts of an electropositive antifouling functional group, 0.2 to 2 parts of graphene electric conductivity enhancing filling material, 55 to 75 parts of a film forming resin, 10 to 15 parts of a curing agent, 15 to 20 parts of a diluent, 0.3 to 1 part of an anti-settling agent, and 2 to 5 parts of a dispersant. The electropositive antifouling functional group is composed of at least one ingredient selected from positively charged micron order particle, and cationic-type polyacrylamide. The graphene electric conductivity enhancing filling material is composed of at least one ingredient selected from single layer graphene, double layer graphene, or few layer graphene. The graphene modified electrostatic anti-fouling paint can be used for coating marine equipment, is excellent in marine organism fouling resistance, long in antifouling effect lasting period, is friendly to the environment; no toxic or side effect is caused; no marine environment pollution is caused; the preparation method is simple; engineering construction is convenient; and the industrialized prospect is promising.

Description

Technical field [0001] The invention relates to the technical field of marine equipment protection, in particular to a graphene modified electrostatic antifouling paint and a preparation method and application thereof. Background technique [0002] Marine equipment such as ships and marine structures have been immersed in seawater for a long time, so the surface of these marine equipment will suffer from seawater corrosion, marine organism attachment and fouling. Marine organisms attach to and foul the surface of the hull, which will increase the resistance of the ship and increase the energy consumption of navigation. Studies have shown that marine biological fouling has increased the energy consumption of ships worldwide by about 40%. Only the attachment of microorganisms on the hull surface will reduce the speed by 20% and increase fuel consumption by 18%. In addition, marine biofouling can also lead to increased hull corrosion and increased maintenance costs. During a voyage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D127/12C09D183/04C09D5/24C09D5/16C09D7/61C09D7/65C08G18/62
CPCC08G18/6225C08K2201/001C08K2201/014C08L2205/03C09D5/1662C09D5/1687C09D5/24C09D127/12C09D175/04C09D183/04C08L77/00C08L33/02C08K13/04C08K7/00C08K3/042C08L33/26
Inventor 豆照良刘峰斌
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY