Main chain degradation type zinc polyacrylate resin prepared by post-grafting method, and method and application of main chain degradation type zinc polyacrylate resin

A technology of zinc polyacrylate, chain degradation, applied in biocide-containing paints, coatings, antifouling/underwater coatings, etc., can solve problems such as marine microplastic pollution, achieve thorough polishing, meet antifouling requirements, and solve The effect of pollution

Inactive Publication Date: 2017-07-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resin can not only meet the static antifouling requirements of the ocean, but also solve the problem of marine microplastic pollution. It is a main chain degradable zinc polyacrylate resin

Method used

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  • Main chain degradation type zinc polyacrylate resin prepared by post-grafting method, and method and application of main chain degradation type zinc polyacrylate resin
  • Main chain degradation type zinc polyacrylate resin prepared by post-grafting method, and method and application of main chain degradation type zinc polyacrylate resin
  • Main chain degradation type zinc polyacrylate resin prepared by post-grafting method, and method and application of main chain degradation type zinc polyacrylate resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A preparation method of main chain degradable polyacrylic acid zinc resin, specifically comprising the following steps:

[0059] (1) Synthesis of acrylate prepolymer:

[0060] Add 64g of xylene and 16g of n-butanol to the reaction vessel, heat to 90°C under a nitrogen atmosphere, and dropwise add 40g of 4-methylcyclohexyl acrylate, 40g of methyl methacrylate, 10g of 2-chloro – ε-caprolactone, 10 g parts of acrylic acid, 0.1 g ethanol, and 70 μL of t-BuP 4 n-hexane solution (containing 0.04g of t-BuP 4 ) formed mixture, after the dropwise addition was completed, it was incubated for 2 hours to obtain an acrylate prepolymer;

[0061] (2) Synthesis of zinc polyacrylate resin:

[0062] Add 25.2g zinc acetate, 47.2g naphthenic acid (acid value 165) and 100g dimethylbenzene in the acrylate prepolymer of step (1), react in 130 ℃ for 8 hours, obtain polyacrylic acid zinc resin (brown transparent resin solution .)

[0063] Resin number average molecular weight M in the pres...

Embodiment 2

[0065] A preparation method of main chain degradable polyacrylic acid zinc resin, specifically comprising the following steps:

[0066] (1) Synthesis of acrylate prepolymer:

[0067] Add 64g of xylene and 16g of propylene glycol methyl ether to the reaction vessel, heat to 95°C under nitrogen atmosphere, and dropwise add 20g of 4-tert-butylcyclohexyl methacrylate, 40g of ethyl acrylate, 25g of 2-methylene Base-1,3-dioxane, 15g of methacrylic acid, 2g of azobisisobutyronitrile and 0.5g of tert-dodecylmercaptan, after the dropwise addition, keep warm for 2 hours to obtain acrylate prepolymer;

[0068] (2) Synthesis of polyacrylic acid zinc resin: add 14.2g zinc oxide, 5g deionized water and 30g xylene in the acrylate prepolymer of step (1), in 140 ℃ of reactions 8 hours, obtain polyacrylic acid zinc resin ( colorless transparent resin solution).

[0069] Resin number average molecular weight M in the present embodiment n 2.0×10 4 g / mol, the zinc content is 5.1%, and the aci...

Embodiment 3

[0071] A preparation method of main chain degradable polyacrylic acid zinc resin, specifically comprising the following steps:

[0072] (1) Synthesis of acrylate prepolymer:

[0073] Add 80g of xylene to the reaction vessel, heat to 100°C under nitrogen atmosphere, dropwise add 10g of polyethylene glycol methacrylate (polymerization degree: 9), 10g of hydroxypropyl methacrylate, 60g of isoacrylate A mixture of octyl esters, 10g 2-methylene-1,3-dioxo-5-cycloheptene, 10g methacrylic acid, 2.5g azobisisovaleronitrile and 0.5g α-methylstyrene dimer , after the dropwise addition was completed, the insulation was kept for 2 hours to obtain an acrylate prepolymer;

[0074] (2) Synthesis of zinc polyacrylate resin: add 11.5g zinc hydroxide, 35.2g abietic acid and 80g xylene to the acrylate prepolymer of step (1), and react at 140°C for 8 hours to obtain zinc polyacrylate resin (yellow transparent resin solution).

[0075] Resin number average molecular weight M in the present embod...

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Abstract

The invention belongs to the technical field of marine antifouling materials, and discloses main chain degradation type zinc polyacrylate resin prepared by a post-grafting method, and a method and application of the main chain degradation type zinc polyacrylate resin. The zinc polyacrylate resin is mainly prepared from the following ingredients in parts by weight: 100 parts of acrylic ester prepolymers, 5 to 50 parts of zinc-containing compounds, 0 to 50 parts of monocarboxylic acid and 5 to 150 parts of organic solvents, wherein the weight parts of the acrylic ester prepolymers are metered by the total weight of monomers reacting in the acrylic ester prepolymers. Resin side chain zinc ester keys and main chain polyester chain segments can be hydrolysed through seawater attack; the problem of the dependence of a traditional self-polishing material on the navigation speed is solved; a coating surface is self-updated through the hydrolysis degradation effect in static seawater; an anti-fouling agent is effectively regulated and controlled to be released at a constant speed rate; the anti-fouling requirements of low-navigation-speed ships and facilities such as offshore production platforms are met; the excellent anti-drag performance is realized. The resin is used for the marine antifouling materials.

Description

technical field [0001] The invention belongs to the technical field of marine antifouling materials, and relates to a zinc polyacrylate resin for marine antifouling coatings, in particular to a main chain degradable zinc polyacrylate resin prepared by a post-grafting method and its method and application; The resin is used in the preparation of marine antifouling coatings. Background technique [0002] Marine biofouling refers to the biofouling formed by marine organisms attaching and growing on surfaces immersed in seawater. It causes immeasurable harm to marine aquaculture, transportation and marine engineering, which is directly reflected in huge economic losses. For example: marine biofouling will block the mesh of the breeding box, causing fish to die due to hypoxia and reduce production; increase the ship's weight and navigation resistance, indirectly lead to a decline in maneuverability and combat capability, and increase fuel consumption and greenhouse gas emissions...

Claims

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Application Information

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IPC IPC(8): C08F283/02C08F283/06C08F220/18C08F220/14C08F220/06C08F220/28C08F8/44C09D151/08C09D5/16C08G63/682C08G65/16
CPCC08F8/44C08F283/02C08F283/06C08F283/065C08G63/682C08G65/16C09D5/1662C09D151/08C08F220/18C08F220/14C08F220/1808
Inventor 张广照马春风潘健森
Owner SOUTH CHINA UNIV OF TECH
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