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Preparation method for antifouling paint matrix resin containing ionic liquid perssads

A technology for antifouling coatings and matrix resins, applied in antifouling/underwater coatings, biocide-containing paints, coatings, etc. To avoid problems such as poor biological attachment, to achieve good eco-friendliness, good antifouling activity, and the effect of inhibiting marine biological attachment

Active Publication Date: 2013-05-29
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In short, pure tin-free self-polishing antifouling coatings have a small static antifouling agent seepage rate, which is not enough to kill marine organisms that try to attach to the hull. It is necessary to introduce efficient bactericidal active groups into the main chain of the resin copolymer to improve the inhibition of marine organisms. Bio-adhesive ability; simple low surface energy antifouling coatings can only make the marine organisms not firmly attached, and external forces are needed to achieve the final cleaning of some attached organisms

Method used

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  • Preparation method for antifouling paint matrix resin containing ionic liquid perssads
  • Preparation method for antifouling paint matrix resin containing ionic liquid perssads
  • Preparation method for antifouling paint matrix resin containing ionic liquid perssads

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preparation example Construction

[0029] Preparation of hydrophobic ionic liquid monomer:

[0030] 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 water and ether and stored for later use.

Embodiment 1

[0032] First, 32 parts of toluene and n-butanol mixed solvent with a mass ratio of 4:1 were added to a reaction flask equipped with a condenser tube and a dropping funnel, and the temperature was controlled at 90°C. methyl acrylate, 17 parts of n-butyl acrylate, 6 parts of ethyl acrylate, 9 parts of acrylic acid, 3 parts of silicone monomer, 4 parts of hydrophobic ionic liquid monomer, 0.8 part of azobisisobutyronitrile, 0.5 part of ten The mixed solution of dithiol was controlled to be dripped within 1.5 hours, and was incubated for 2 hours. Then add 0.2 parts of remaining mixed solvent dissolved in azobisisobutyronitrile within 0.5 hour, and keep warm for 1 hour to obtain an acrylic acid prepolymer containing ionic liquid groups. Subsequently, 46 parts of acrylic acid prepolymers containing ionic liquid groups, 5.7 parts of zinc hydroxide, and 20 parts of xylene and butyl acetate mixed solvents with a mass ratio of 1; In the reaction bottle of the separator, dissolve 8 part...

Embodiment 2

[0034] The synthesis of the acrylic acid prepolymer containing ionic liquid groups in this example is the same as in Example 1. Add 45 parts of acrylic acid prepolymer 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; In the reaction bottle of the reactor, dissolve 12.4 parts of perfluorooctanoic acid and 3.2 parts of benzoic acid in 14 parts of mixed solvent, control the temperature at 95 ° C, and evenly add the above mixed solution of organic acids dropwise under nitrogen purging, and keep the reflux state until the reaction solution is transparent. Then heat up to 125°C for dehydration until the water is completely removed to obtain a transparent, clear, viscous antifouling coating matrix resin containing ionic liquid groups.

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Abstract

The invention discloses a preparation method for antifouling paint matrix resin containing ionic liquid perssads. The method comprises the following steps of: firstly synthetizing a hydrophobicity ionic liquid monomer, then polymerizing a crylic acid soft or hard monomer, a hydrophobicity ionic liquid monomer, crylic acid or methacrylic acid, and unsaturated organosilicone monomer in a solvent by an initiator through radical polymerization to obtain a crylic acid prepolymer containing ionic liquid perssads so as to be reacted with a mixture of zinc hydroxide (copper), perfluorinated organic acid and monovalence organic acid to obtain the antifouling paint matrix resin containing ionic liquid perssads. The resin also has a self polishing property and a low surface energy property.

Description

technical field [0001] The invention belongs to the technical field of antifouling coatings, and relates to a preparation method of an antifouling coating matrix resin, in particular to a preparation method of an antifouling coating matrix resin containing ionic liquid groups and having low surface energy and self-polishing characteristics. Background technique [0002] Marine biofouling has always been a worldwide problem that plagues people. Sea organisms adhere to increase the frictional resistance of ships, increase energy consumption, and aggravate hull corrosion. Applying antifouling paint is the most effective means of preventing biofouling. However, due to the regulations of the Marine Environmental Protection Committee of the International Maritime Organization (IMO), the use of antifouling paints containing organotin (TBT) has been banned since January 1, 2008, and a variety of new antifouling paint systems have been developed and introduced, especially Tin-free ...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F220/18C08F220/06C08F230/08C08F212/14C08F8/00C08F8/44C09D133/12C09D5/16
Inventor 裴小维周峰于波胡海媛薛群基刘维民
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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