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A linear self-polishing antifouling resin rich in biocides and copper-free marine antifouling coatings comprising the resin

A bio-fungicide and antifouling resin technology, applied in the field of coatings, can solve the problems of unstable antifouling performance and slow release rate of Cu ions.

Active Publication Date: 2021-01-01
ZHEJIANG MARINE DEV RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the traditional self-polishing antifouling coating system, the release rate of Cu ions is fast in the early stage and slow in the later stage, and the antifouling performance is unstable.

Method used

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  • A linear self-polishing antifouling resin rich in biocides and copper-free marine antifouling coatings comprising the resin
  • A linear self-polishing antifouling resin rich in biocides and copper-free marine antifouling coatings comprising the resin
  • A linear self-polishing antifouling resin rich in biocides and copper-free marine antifouling coatings comprising the resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0273] Synthesis of isobornyl methacrylate / butyl methacrylate binary copolymer resin:

[0274] (1) Synthesis of resin 1A: add 0.3g of azobisisobutyronitrile (AIBN), 0.2g of 3-mercaptopropionic acid, 0.2 g ethyl 3-mercaptopropionate, 187g xylene, 10g propylene glycol monomethyl ether, heat up to 100°C, then weigh 160g butyl methacrylate, 40g isobornyl methacrylate, 1.2g AIBN, 1.0g mercaptopropyl For the mixed solution of acid, after 2 hours of constant-speed dripping with a needle propeller, turn off the heating temperature, and continue to use the needle-type propeller to drop at a constant speed for 1 hour, then add 0.1g of tert-amyl peroxyacetate (TAPV) , and then slowly raised the temperature to 110° C., kept the temperature for 2.5 hours, and then cooled to room temperature to complete the reaction.

[0275] According to the GPC test, the number average molecular weight of the resin is 9544, the weight average molecular weight is 17405, and the dispersion degree is 1.824....

Embodiment 2

[0283] Synthesis of p-chloromethylstyrene / butyl methacrylate binary copolymer resin grafted with methyl nicotinate pyridinium salt:

[0284] Preparation of resin 2A: add 0.3g azobisisobutyronitrile (AIBN), 0.2g 3-mercaptopropionic acid, 0.2g 3- Ethyl mercaptopropionate, 187g xylene, 10g propylene glycol monomethyl ether, heat up to 100°C, then weigh the mixture containing 40g p-chloromethylstyrene, 160g butyl methacrylate, 1.2g AIBN, 1.0g mercaptopropionic acid Liquid, after 2 hours of constant-velocity dripping with a needle-type propeller, turn off the heating temperature, continue to use a needle-type propeller to drop at a constant speed for 1 hour and complete, add 0.1g tert-amyl peroxyacetate (TAPV), and then slowly Raise the temperature to 110°C, keep it warm for 2.5 hours, then cool to 45°C, add 36g of methyl nicotinate and 64g of dimethylformamide, keep it warm for 18h, then cool to room temperature to complete the reaction.

[0285] According to the GPC test, the nu...

Embodiment 3

[0287] Synthesis of p-chloromethylstyrene / butyl methacrylate / isobornyl methacrylate terpolymer resin grafted with methyl nicotinate pyridinium salt:

[0288] Preparation of 3A: Add 0.3g azobisisobutyronitrile (AIBN), 0.2g 3-mercaptopropionic acid, 0.2g 3-mercapto Ethyl propionate, 187g of xylene, 10g of propylene glycol monomethyl ether, heated up to 100°C, and then weighed 40g of p-chloromethylstyrene, 110g of butyl methacrylate, 50g of isobornyl methacrylate, 1.2g of AIBN, 1.0g of the mixed solution of mercaptopropionic acid was added dropwise at a constant speed for 2 hours with a needle propeller, then the heating temperature was turned off, and continued to be added dropwise with a needle propeller at a constant speed for 1 hour, and 0.1 g of tert-amyl peroxyacetate was added. ester (TAPV), and then slowly raised the temperature to 110°C, kept warm for 2.5h, cooled to 45°C, added 36g of methyl nicotinate, 64g of dimethylformamide, kept warm for 18h, cooled to room tempera...

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Abstract

The invention relates to the field of coating, and discloses a linear self-polishing antifouling resin rich in a biological bactericide, and copper-free marine antifouling coating containing the linear self-polishing antifouling resin. The linear self-polishing antifouling resin contains eight different types of corresponding synthetic routes, the synthetic process route of the linear self-polishing antifouling resin is easier to control and lower in cost, and the molecular weight of the obtained resin is stable and narrower in distribution and has the good linear polishing ability; and afterthe copper-free marine antifouling coating is prepared from the linear self-polishing antifouling resin, the antibacterial property, the antifouling property, the adhesion capability and the weather resistance are good, and the copper-free marine antifouling coating is suitable for application of long-lasting antifouling coating systems of ships.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a linear self-polishing antifouling resin rich in biocides and a copper-free marine antifouling coating containing the resin. Background technique [0002] In the course of the development of marine economy and shipping industry, the problem of marine fouling and adhesion continues to plague people. Marine fouling will not only increase the resistance of ships sailing and fuel consumption, accelerate the corrosion and degradation of hull materials, but also destroy the ecological balance of waters. The British International Paint Company has made statistics on the increase of ship bottom fouling and fuel consumption: if the ship bottom is fouled by 5%, the fuel consumption will increase by 10%; if the ship bottom fouling is greater than 50%, the fuel consumption will increase by more than 40%. [0003] Self-polishing paint is a kind of antifouling paint for ships, and its coating film ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F212/14C08F8/30C08F283/06C08F230/08C09D133/10C09D171/00C09D5/14C09D5/16
Inventor 胡建坤
Owner ZHEJIANG MARINE DEV RES INST
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