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Self-polishing antifouling fluorosilicone acrylate resin and preparation method thereof

A technology of fluorosilicone acrylic and antifouling resin, which is applied in the direction of antifouling/underwater coatings, coatings, paints containing biocide, etc., and can solve the problem of uncertain distribution of fluorosilicone, self-polishing characteristics and complex preparation process etc. to achieve the effects of uniform hydrolysis/degradation, anti-pollution, environmental friendliness, and simple preparation method

Active Publication Date: 2015-04-15
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

The synthesis of the above resins and antifouling coatings all use silicon monomers and fluorine monomers to polymerize with acrylic monomers respectively, or use siloxane polymer chains to cross-link carbon polymer chains to form polymers, and the distribution of fluorine and silicon in the polymers The state is uncertain, the preparation process is complicated, and the self-polishing characteristics are not taken into account

Method used

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  • Self-polishing antifouling fluorosilicone acrylate resin and preparation method thereof
  • Self-polishing antifouling fluorosilicone acrylate resin and preparation method thereof
  • Self-polishing antifouling fluorosilicone acrylate resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Preparation of Fluorosilicone Acrylic Acid Monomer

[0018] First mix 12.4g of potassium methacrylate with 90ml of toluene, add 0.1g of 18-crown-6, stir evenly, put it into a round-bottom three-port reactor and place it in a water bath at 25°C; add 10.6g of trifluoropropylmethyl di Mix chlorosilane and 10.6g toluene evenly, put it into a constant pressure dropping funnel, drop it into a three-port reactor for 2 hours at a constant speed, and react for 24 hours to obtain a fluorosilicone acrylic acid monomer; its molecular structure is:

[0019]

Embodiment 2

[0020] Example 2: Infrared Characterization of Fluorosilicone Acrylic Acid Monomer

[0021] Using red light spectrum test, the results are shown in the attached figure 1 : The methyl stretching vibration peak at 2954cm-1, the stretching vibration peak of methylene at 2876cm-1, the strong absorption peak at 1725cm-1 is the characteristic peak of the C=O double bond, and the strong absorption peak at 1635cm-1 C=C double bond characteristic absorption peak at 1262cm-1, Si-CH3 bond characteristic absorption peak at 1179cm-1, C-F stretching vibration peak at 1065cm-1, C-O bond characteristic absorption peak at 1065cm-1, There is a characteristic absorption peak of Si-O bond at 1022cm-1, an asymmetric stretching vibration absorption peak of Si-C bond and a characteristic absorption peak of -CH3 at 803cm-1.

Embodiment 3

[0022] Example 3: Preparation of Fluorosilicone Acrylic Hydrolyzable / Degradable Self-Polishing Antifouling Resin

[0023] Stir and mix 2 g of the fluorosilicon acrylic acid monomer obtained in Example 1, 2 g of methyl methacrylate, 6 g of butyl acrylate and 40 g of toluene, add 0.1 g of azobisisobutyronitrile, and stir the reaction at a temperature of 85°C After 4 hours, a colorless and transparent fluorosilicone acrylic acid hydrolyzable / degradable self-polishing antifouling resin was obtained, and its molecular structural formula is:

[0024]

[0025] The glass transition temperature was -5°C tested by TG-DSC thermogravimetric analysis, and the molecular weight distribution was tested by GPC. The mass average relative molecular mass Mw was 8800, the number average relative molecular mass Mn was 4800, and the dispersion coefficient Mw / Mn was 1.84.

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Abstract

The invention belongs to the technical field of ocean pollution prevention, and relates to a self-polishing antifouling fluorosilicone acrylate resin and a preparation method thereof. The self-polishing antifouling fluorosilicone acrylate resin adopts a net structure formed by enabling fluorosilicone acrylate monomer to react with R3 and R4 groups containing acrylate monomer, wherein the fluorosilicone acrylate monomer is acrylic monomer containing a fluorosilicone group; the molecular structure comprises two acrylates and one fluorine-containing siloxane; the acrylate monomers are 1-4 free radical polymerization monomers containing R3 and R4 groups and comprise acrylic acid, (methyl) acrylate, (methyl) ethyl acrylate and (methyl) butyl acrylate. The preparation technology comprises the following steps: firstly selecting fluorosilicone acrylate monomer, acrylate monomer, azodiisobutyronitrile and methylbenzene, placing the selected substances into a reaction vessel to be mixed uniformly, and then stirring the mixture to obtain colorless transparent fluorosilicone acrylate self-polishing antifouling resin. The preparation method is simple; the raw materials are accessible; the self-polishing antifouling fluorosilicone acrylate resin is easy to produce in a large scale, antifouling, and environment-friendly, and has a good potential application prospect.

Description

Technical field: [0001] The invention belongs to the technical field of marine antifouling, and relates to a surface fouling protection technology for solid facilities in the marine environment, in particular to a self-polishing antifouling self-polishing antifouling that can be hydrolyzed / degradable by cross-linking and copolymerizing segments of fluorine-containing siloxane and acrylate The resin and its preparation method are used for preventing fouling organisms attached to the surface of ships and other underwater facilities. Background technique: [0002] Marine biofouling is a phenomenon in which fouling organisms attach to the surface of marine structures and cause adverse effects. Biofouling is extremely harmful, such as increasing the navigation resistance of ships, blocking sea pipelines, reducing the thermal conductivity of thermoelectric cooling equipment, and causing fish catches in aquaculture. production reduction, etc. The most convenient and effective way ...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F230/08C08F220/14C09D133/08C09D5/16
Inventor 郑纪勇蔺存国张华禄
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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