Antifouling material and preparation method thereof

An antifouling and coating technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve problems such as poor antifouling performance, improve fouling release performance, and meet long-term antifouling demand, the effect of improving static antifouling performance

Active Publication Date: 2020-06-05
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, environmentally friendly antifouling coatings prepared only through surface microstructure, low surface energy, or hydrophilic gels still face the problem of poor antifouling performance at static or low flow rates during application, and the coupling of multiple antifouling properties Design is the main idea to solve this problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013]The specific process of the preparation method of the anti-fouling material involved in this example is as follows: 80 parts by mass of hydroxyl-terminated polydimethylsiloxane with a viscosity of 300 centipoise and 5 parts by mass of surface microstructure adjustment components are sequentially added to the stirring tank The organosilicon resin containing acrylonitrile structure and the molar ratio of the two polymer segments before and after 5 parts by mass are terminal trimethoxypolydimethylsiloxane-polyethylene glycol block copolymer ( PDMS-PEG), after grinding for 1h, add 10 mass parts of stannous octoate mixed with silicon 40 to form a compound and the water-soluble organic amine (tetraethylenepentamine) in the surface microstructure adjustment component, the quality of tetraethylenepentamine 3% of the total mass of the antifouling material, quickly disperse to form a coating, add 1 mass part of xylene, mix thoroughly and apply it on the surface of the substrate. Af...

Embodiment 2

[0015] The specific process of the preparation method of the anti-fouling material involved in this example is as follows: 65 parts by mass of hydroxyl-terminated polydimethylsiloxane with a viscosity of 5000 centipoise and 30 parts by mass of surface microstructure adjustment components are sequentially added to the stirring tank The organosilicon resin containing acrylonitrile structure and 1 mass part of dimethylsiloxane-polysulfobetaine block copolymer (PDMS-PSBMA ), after grinding for 3 hours, add 4 mass parts of stannous octoate mixed with silicon 40 to form a compound and the water-soluble organic amine (ethylenediamine) in the surface microstructure adjustment component, and the quality of ethylenediamine is the total amount of antifouling material 1% by mass, quickly disperse to form a coating, add 10 parts by mass of xylene, mix thoroughly and apply on the surface of the substrate. After the coating is cured, an antifouling material with synergistic effects of multipl...

Embodiment 3

[0017] The specific process of the preparation method of the anti-fouling material involved in this example is as follows: 75 parts by mass of hydroxyl-terminated polydimethylsiloxane with a viscosity of 150,000 centipoise and 14 parts by mass of surface microstructure adjustment components are sequentially added to the stirred tank The organosilicon resin containing acrylonitrile structure and 3 parts by mass of the terminal triethoxy polydimethylsiloxane-polyfluorinated block copolymer (PDMS -PF), after grinding for 2 hours, add 8 parts by mass of dibutyltin dilaurate mixed with triethoxysilane to form a compound and the water-soluble organic amine (diethylenetriamine) in the surface microstructure adjustment component, diethylene The mass of triamine is 2% of the total mass of the antifouling material. It is quickly dispersed to form a coating. Add 20 parts by mass of xylene, mix thoroughly and apply it on the surface of the substrate. After the coating is cured, an antifoul...

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Abstract

The invention belongs to the technical field of marine organism fouling protection. The invention relates to an antifouling material and a preparation method thereof. The antifouling material is prepared from polydimethylsiloxane, a surface microstructure adjusting component, a surface chemical property adjusting component and a curing component. A specific technological process of the preparationmethod of the antifouling material is as follows: sequentially adding polydimethylsiloxane, the surface microstructure adjusting component acrylonitrile structure-containing organic silicon resin, and the surface chemical property adjusting component into a stirring kettle, grinding the components, adding a curing component to form a coating, and coating the surface of a base material with the coating diluted by xylene to obtain the antifouling material with a synergistic effect of multiple antifouling properties. Compared with the prior art, no antifouling agent such as cuprous oxide, cuprous thiocyanate and organic tin is used, so that no destructive influence is caused to the marine ecological environment, the antifouling period can reach 5 years or longer, and the antifouling agent can be widely applied to surface marine organism fouling protection of marine engineering facilities and structures such as docks, drilling platforms, piers and piles and has good potential economic benefits.

Description

Technical field: [0001] The invention belongs to the technical field of marine biofouling protection, and specifically relates to an antifouling material and a preparation method thereof. Based on the characteristics of the raw material itself, the fouling organisms can be constructed through the coupling regulation of the surface microstructure, surface chemical properties and elastic modulus of the material. Difficult or poorly adhered stain-resistant surfaces. Background technique: [0002] Marine fouling organisms are the general term for microorganisms, plants and animals that grow on the bottom of ships and on the surface of all facilities in the sea. Marine antifouling coatings have experienced a development process from toxic to environmentally friendly, short-term to long-term. At present, there are mainly three types of commercial antifouling coatings: one is abrasive antifouling coatings composed of non-polishing film-forming substances such as chlorinated rubber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D183/08C09D183/12C09D183/10C09D5/16
CPCC08L2205/02C08L2205/03C09D5/1675C09D5/1687C09D183/04C08L83/08C08L83/12C08K5/17C08L83/10
Inventor 蔺存国王利张金伟郑纪勇孙智勇
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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