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Ionic liquid modified marine antifouling paint

A technology of marine antifouling and antifouling coatings, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problem of low surface energy, achieve low surface energy, and enhance the antifouling period effect , Excellent long-term antifouling performance

Active Publication Date: 2013-05-29
YANTAI ZHONGKE RES INST OF ADVANCED MATERIALS & GREEN CHEM ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the existing low surface energy antifouling coatings have poor adhesion, short antifouling cycle, fast antifouling effect failure and poor static antifouling performance of tin-free self-polishing antifouling coatings. For the above problems, The purpose of the present invention is to overcome the shortcomings of the prior art and seek to provide a method for preparing marine antifouling coatings that is environmentally friendly, low in surface energy, stable in self-polishing, and durable in antifouling effect

Method used

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  • Ionic liquid modified marine antifouling paint
  • Ionic liquid modified marine antifouling paint
  • Ionic liquid modified marine antifouling paint

Examples

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preparation example Construction

[0034] The preparation of hydrophobic ionic liquid monomer among the present invention is as follows:

[0035] Add 82 grams of N-methylimidazole, 165 grams of chloromethylstyrene, and 0.5 grams of polymerization inhibitor 2,6-di-tert-butyl-p-cresol (DBMP) into a reaction flask. Under the protection of nitrogen, stir at a constant temperature of 35°C for 24 hours to form a yellowish viscous liquid, wash with ether, and dry under vacuum at room temperature overnight to obtain a transparent, viscous liquid 1-(4-vinylbenzyl-)-3-methylimidazole chlorine. Then 18 grams of ammonium hexafluorophosphate or 12.1 grams of sodium tetrafluoroborate and 100 ml of acetone were mixed evenly and then added to 27.6 grams of 1-(4-vinylbenzyl-)-3-methylimidazole chloride, 0.2 grams of polymerization inhibitor DBMP , 100ml of acetone, stirred at 30°C for 24 hours, then filtered, and the filtrate was distilled under reduced pressure to obtain a white waxy solid. The crude product was washed with w...

Embodiment 1

[0039] (1) 46 parts of acrylic acid prepolymers containing ionic liquid groups, 5.7 parts of zinc hydroxide, 20 parts of xylene and butyl acetate mixed solvent with a mass ratio of 1; 1 were added to the reaction flask, and 8 parts of perfluorooctanoic acid, Dissolve 4.7 parts of benzoic acid in 15.6 parts of mixed solvent, add the above organic acid mixed solution dropwise at 95°C under nitrogen purging, keep the reflux state until the reaction solution is transparent, then raise the temperature to 125°C for dehydration until the water is completely removed, and a transparent, Viscous base resin for antifouling coatings containing ionic liquid groups.

[0040] (2) Add the above-mentioned antifouling coating matrix resin containing ionic liquid groups, wetting and dispersing agent and mixed solvent into the dispersion tank, fully disperse for 10 minutes, then add composite antifouling agent, pigment and filler, leveling agent, defoaming agent in sequence The anti-sedimentation...

Embodiment 2

[0050] (1) 45 parts of acrylic acid prepolymers containing ionic liquid groups, 5.5 parts of zinc hydroxide, 20 parts of xylene and butyl acetate mixed solvent with a mass ratio of 1; 1 are added to the reaction flask, and 12.4 parts of perfluorooctanoic acid 1. Dissolve 3.2 parts of benzoic acid in 14 parts of mixed solvent, add the above organic acid mixed solution dropwise at 95°C under nitrogen purging, keep the reflux state until the reaction solution is transparent, then raise the temperature to 125°C for dehydration, until the water is completely released, and a transparent , viscous antifouling coating matrix resin containing ionic liquid groups.

[0051] (2) The preparation process of the present example marine antifouling paint is the same as in Example 1.

[0052] The composition ratio of marine antifouling paint in this example is as follows:

[0053] Antifouling coating matrix resin containing ionic liquid groups: 30 grams

[0054] Composite antifouling agent: 1...

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Abstract

The invention discloses ionic liquid marine antifouling paint, which comprises an antifouling paint matrix resin containing ionic liquid groups, an antifouling agent, a pigment filling material, an aiding agent and an organic solvent. The antifouling paint is mainly applied to the antifouling of a ship. In the ocean, based on the characteristic of the low surface energy of the paint, the adhering of marine organisms is effectively inhibited; an acrylic copolymer on the surface of the coating are hydrolyzed to release organic acid zinc or copper and the antifouling agent, so that the self polishing of the surface of the coating is realized; and the main chain of the hydrolyzed acrylic copolymer contains the ionic liquid groups with bactericidal activities, so that the efficient antifouling activity of the coating is maintained continuously, and the adhering of the marine organisms is prevented. Thus, the antifouling paint provided by the invention has the excellent long-term antifouling performance.

Description

technical field [0001] The invention belongs to the technical field of antifouling coatings, and relates to a marine antifouling coating, in particular to an ionic liquid modified marine antifouling coating, which is used for antifouling of ocean-going ships. Background technique [0002] The marine environment is closely related to human activities, and the problem of marine biofouling has always been a major problem restricting the development and utilization of marine resources. Sea organisms adhere to increase the frictional resistance of ships, which affects the speed of ships and increases energy consumption. At the same time, marine biofouling can accelerate the aging of the paint film and aggravate the corrosion of the hull, which is extremely harmful. The most effective way to prevent biofouling is to apply antifouling coatings, so various antifouling coatings for ships have emerged as the times require. Among the many antifouling approaches, self-polishing antifo...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D5/16C09D7/12C08F220/14C08F220/18C08F220/06C08F230/08C08F212/14C08F8/00C08F8/44
Inventor 裴小维周峰于波胡海媛薛群基刘维民
Owner YANTAI ZHONGKE RES INST OF ADVANCED MATERIALS & GREEN CHEM ENG
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