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High-performance environment-friendly water-based ship inner cabin coating

An environmentally friendly, high-performance technology, applied in epoxy resin coatings, anti-fouling/underwater coatings, anti-corrosion coatings, etc., can solve problems such as poor anti-corrosion performance and low surface energy performance, and achieve excellent surface mobility and performance Stable, easy-to-recoat effect

Active Publication Date: 2015-04-29
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Based on domestic and foreign inventions and literature, the preparation methods of emulsions for waterborne low surface energy coatings are mainly fluorocarbon-modified acrylic emulsions, fluorine / silicon-modified polyurethane emulsions, etc., which mainly utilize the excellent weather resistance and decorative properties of acrylic resins. The advantages of chemical bonding with fluorine, through chemical modification technology, endow low surface energy performance, but there are defects of poor anti-corrosion performance
At present, domestic and foreign patents and literatures have not introduced the preparation method of fluorine to modify the surface of epoxy resin emulsion and the relevant information on the application of water-based low surface energy coatings prepared by using it as a base material in ship interiors

Method used

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  • High-performance environment-friendly water-based ship inner cabin coating
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  • High-performance environment-friendly water-based ship inner cabin coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The first step: preparation of epoxy resin with fluoroalkyl segment in side chain

[0069] Add 6.40 parts of isophorone diisocyanate, 15.18 parts of perfluorodecyl ethyl alcohol, and 7.83 parts of butyl acetate into the reaction kettle in sequence, fill it with nitrogen or argon, stir at a constant speed, heat to 95°C, and wait until the materials are completely After dissolving, the reaction was incubated for 2 hours. 0.01 part of dibutyltin dilaurate was added, and the reaction was continued for 7 hours while stirring at 95°C. After cooling to 50°C, add 42.35 parts of epoxy resin E20 and 28.22 parts of butyl acetate to form a 60% epoxy resin E20 solution, add 0.01 part of dibutyltin dilaurate, heat up to 70°C, and continue the heat preservation reaction for 7 hours. The synthesized isocyanate-terminated fluorine-containing compound was grafted onto the side chain of bisphenol A epoxy resin E20. After the reaction, vacuumize for 3 hours, remove excess solvent under r...

Embodiment 2

[0104] The first step: preparation of epoxy resin with fluoroalkyl segment in side chain

[0105] Add 5.35 parts of isophorone diisocyanate, 12.75 parts of perfluorodecyl ethyl alcohol, and 10.41 parts of butyl acetate into the reaction kettle in sequence, fill it with nitrogen or argon, stir at a constant speed, heat to 95°C, and wait until the materials are completely After dissolving, the reaction was incubated for 2 hours. 0.015 parts of dibutyltin dilaurate was added, and the reaction was continued for 7 hours while stirring at 95°C. After cooling to 50°C, add 42.88 parts of epoxy resin E20 and 28.58 parts of butyl acetate to form a 60% epoxy resin E20 solution, add 0.015 parts of dibutyltin dilaurate, heat up to 70°C, and continue the heat preservation reaction for 7 hours. The synthesized isocyanate-terminated fluorine-containing compound was grafted onto the side chain of bisphenol A epoxy resin E20. After the reaction, vacuumize for 3 hours, remove excess solvent un...

Embodiment 3

[0145] The first step: preparation of epoxy resin with fluoroalkyl segment in side chain

[0146] Add 6.36 parts of isophorone diisocyanate, 15.12 parts of perfluorodecyl ethyl alcohol, and 7.66 parts of butyl acetate into the reaction kettle in sequence, fill it with nitrogen or argon, stir at a constant speed, heat to 95°C, and wait until the materials are completely After dissolving, the reaction was incubated for 2 hours. 0.01 part of dibutyltin dilaurate was added, and the reaction was continued for 7 hours while stirring at 95°C. After cooling to 50°C, add 42.50 parts of epoxy resin E20 and 28.34 parts of butyl acetate to form a 60% epoxy resin E20 solution, add 0.01 part of dibutyltin dilaurate, heat up to 70°C, and continue the heat preservation reaction for 7 hours. The synthesized isocyanate-terminated fluorine-containing compound was grafted onto the side chain of bisphenol A epoxy resin E20. After the reaction, vacuumize for 3 hours, remove excess solvent under r...

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Abstract

The invention discloses a preparation method and an application of a high-performance environment-friendly water-based ship inner cabin coating. According to the high-performance environment-friendly water-based ship inner cabin coating, a two-component modified epoxide resin emulsion coating system containing fluoroalkyl side chains is adopted, wherein a component A is a mixture taking a structure modified epoxide resin emulsion containing fluoroalkyl side chains as a base material, and a component B is a water-based amine curing agent consisting of epoxy-terminated polyether compounds and an amine addition product; the component A and the component B are proportionally and uniformly prepared for coating; the limited quantity of hazardous substances in a cured paint film meets the environmental protection standard of VOC (volatile organic compound) content smaller than or equal to 120 g / L, the water contact angle of the paint film is larger than 100 degrees and kept stable, recoating is easy, and the coating has excellent mould-proof, contamination-resisting and corrosion-resisting properties and is suitable for protective decoration of a ship inner cabin.

Description

technical field [0001] The invention relates to the field of polymer chemical coatings, in particular to an environment-friendly water-based interior cabin coating for ships with excellent anti-mildew, anti-fouling and anti-corrosion properties prepared by using fluorine-modified epoxy resin emulsion as a base material. Background technique [0002] Ship interior coatings are applied to the decoration and protection of interior steel plates and soft cladding surfaces. Traditional ship interior coatings are mostly solvent-based coatings, and the most widely used are: alkyd coatings, acrylic coatings and epoxy resin coatings. However, solvent-based inner cabin coatings are prone to fire, poisoning and other accidents during construction, especially in the construction of soft covering of the insulating layer. The soft covering cloth and insulating materials are porous materials, which absorb a large amount of paint. And it is easy to seal the organic solvent inside the porous ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12C09D5/16C09D5/08
CPCC08K3/22C08K3/30C08K3/32C08K3/34C08K13/02C08K2003/2241C08K2003/3045C08K2003/328C08L2205/025C09D5/084C09D5/1662C09D7/61C09D7/63C09D163/00C08L63/00
Inventor 万众卢敏高新华徐金文杨凯宁亮吴连锋王贤明
Owner MARINE CHEM RES INST
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