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Vertical graphene oxide/degradable resin marine antifouling coating and preparation method thereof

A degradable resin and marine antifouling technology, which is applied in the direction of antifouling/underwater coatings, coatings, polyurea/polyurethane coatings, etc., can solve the problem of small relative flow velocity between seawater and marine equipment, small scouring force, and antifouling effect of marine equipment Bad question

Active Publication Date: 2021-04-30
JIAXING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The conditions of use of fouling-releasing marine antifouling coatings require a relatively high flow velocity between seawater and marine equipment, so it can be applied to the surface antifouling operations of marine equipment at high speeds in the ocean; and when marine equipment is at low speeds Or in a static state, the relative flow velocity between seawater and marine equipment is small, so that the seawater has a small scouring force on the surface of marine equipment, and the shedding speed of marine fouling organisms on the surface of marine equipment is easily lower than the attachment speed, so marine antifouling coatings The antifouling effect of the layer on marine equipment is poor

Method used

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  • Vertical graphene oxide/degradable resin marine antifouling coating and preparation method thereof
  • Vertical graphene oxide/degradable resin marine antifouling coating and preparation method thereof
  • Vertical graphene oxide/degradable resin marine antifouling coating and preparation method thereof

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preparation example Construction

[0026] figure 1 It is a method flowchart of a preparation method of a vertical graphene oxide / degradable resin marine antifouling coating shown according to an exemplary embodiment, such as figure 1 Shown, the preparation method of this vertical graphene oxide / degradable resin marine antifouling coating comprises:

[0027] Step 101: Put 1 part by weight of graphene oxide in the first preparation container filled with 100 parts by weight of solvent, disperse at high speed for 30-60 minutes, and then place it in an ultrasonic device for 20-30 minutes to continue dispersing, and then add to the first preparation container. Add 0.01~0.04 parts by weight of silane coupling agent and 0.1~0.2 parts by weight of acetic acid to the preparation container respectively, place the first preparation container at a reaction temperature of 60°C~80°C for 6~8 h, and then add Add 1 to 3 parts by weight of a graphene oxide dispersion aid to the first preparation container to prepare a finished g...

Embodiment 1

[0042] (1) Put 1 part by weight of graphene oxide in the first preparation container filled with 100 parts by weight of N,N-dimethylformamide, disperse at high speed for 30~60 minutes, and then put it in the After continuing to disperse in the kHz ultrasonic equipment for 20-30 min, respectively add 0.01 parts by weight of vinyltriethoxysilane and 0.1-0.2 parts by weight of acetic acid to the first preparation container, and place the first preparation container at 60 React at a reaction temperature of °C~80°C for 6~8 h, and then add 1 part by weight of graphene oxide dispersion aid to the first preparation container to prepare a finished graphene oxide dispersion with a mass fraction of 1%.

[0043] (2) Put 20 parts by weight of the graphene oxide dispersion, 30 parts by weight of degradable acrylic resin, and 50 parts by weight of N,N-dimethylformamide into the second preparation container, and disperse at high speed for 30-60 minutes to obtain The mixture is then placed und...

Embodiment 2

[0045] (1) Put 1 part by weight of graphene oxide in the first preparation container filled with 100 parts by weight of N,N-dimethylformamide, disperse at high speed for 30~60 minutes, and then put it in the After continuing to disperse in the kHz ultrasonic equipment for 20 to 30 minutes, add 0.04 parts by weight of ã-aminopropyltriethoxysilane and 0.1 to 0.2 parts by weight of acetic acid to the first preparation container respectively, and place the first preparation container Placed at a reaction temperature of 60°C to 80°C and reacted for 6 to 8 h, then added 2 parts by weight of a graphene oxide dispersion aid to the first preparation container to prepare a graphene oxide dispersion with a mass fraction of 1%. Liquid products.

[0046] (2) Put 30 parts by weight of the graphene oxide dispersion, 30 parts by weight of degradable polyurethane, and 80 parts by weight of N,N-dimethylformamide into the second preparation container, and disperse at high speed for 30-60 minutes...

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Abstract

The invention discloses a vertical graphene oxide / degradable resin marine antifouling coating and a preparation method thereof, and relates to the technical field of marine antifouling coatings. The present invention provides an upright graphene oxide / degradable resin marine antifouling coating and a preparation method thereof. The upright graphene oxide / degradable resin marine antifouling coating is prepared by using graphene oxide and degradable resin in a high temperature and strong magnetic environment. Fouling coating, the vertical graphene oxide / degradable resin marine anti-fouling coating has a surface vertical graphene oxide structure, which can physically destroy marine fouling biological cells, making marine fouling organisms inactive and lose adhesion. The degradation of the medium-degradable resin makes the vertical graphene oxide continuously form on the surface of the marine anti-fouling coating, which solves the technical problem that the marine anti-fouling coating has a low anti-fouling effect on marine equipment in a low-speed or calm sea environment and is not environmentally friendly. , to achieve the technical effect of long-term environmental protection and antifouling of marine equipment in low speed or calm sea environment.

Description

technical field [0001] The invention relates to the technical field of marine antifouling coatings, in particular to a vertical graphene oxide / degradable resin marine antifouling coating and a preparation method thereof. Background technique [0002] Marine biofouling is a phenomenon in which marine economic losses are caused by the attachment of marine fouling organisms to marine equipment. [0003] At present, the acrylic self-polishing antifouling coating is widely used in the field of marine antifouling. The antifouling coating mainly forms a water-soluble polymer with a carboxyl group through the hydrolysis of the acrylic resin, so that the antifouling agent in the antifouling coating is released. , so as to achieve the marine antifouling effect. However, the cuprous oxide contained in the antifouling agent has certain toxicity. With the increasing demand for environmental protection, the cuprous oxide antifouling coating will eventually be eliminated. [0004] In ord...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D175/04C09D5/16B05D5/08
CPCB05D5/08C09D5/1618C09D5/1662C09D5/1668C09D5/1687C09D133/00C09D175/04C08K9/00C08K9/06C08K9/04C08K3/042
Inventor 易杰吴莉莉张萌萌李书卿代正伟董军
Owner JIAXING UNIV