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Ultraviolet light curing anti-fouling paint and preparation method thereof

A technology of ultraviolet light and coatings, applied in the direction of antifouling/underwater coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of high cost, poor antifouling effect, poor antifouling durability, etc., and achieve durable antifouling Long-term resistance, improved mold resistance, and excellent compactness

Active Publication Date: 2015-07-22
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problems of high cost, poor anti-fouling effect and poor anti-fouling durability of UV-curable anti-fouling coatings in the prior art, and provide a UV-curable anti-fouling coating and its preparation method

Method used

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  • Ultraviolet light curing anti-fouling paint and preparation method thereof
  • Ultraviolet light curing anti-fouling paint and preparation method thereof
  • Ultraviolet light curing anti-fouling paint and preparation method thereof

Examples

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preparation example Construction

[0069] The preparation method of ultraviolet curing antifouling paint of the present invention comprises the following steps:

[0070] (1) Add multifunctional fluorine-containing silicon urethane acrylate, multifunctional urethane acrylate, leveling agent, and defoamer into a high-speed mixer, and stir at 800-1300rpm for 1-3h, preferably 900-1200rpm for 1.5-2h , to get a mixture;

[0071] (2) Add the mixture, photoinitiator and multifunctional acrylate diluent into a high-speed mixer, and stir at 1100-1500rpm for 10-45min, preferably at 1200-1400rpm for 25-35min, to obtain a UV-curable antifouling coating.

Embodiment 1

[0074] to combine figure 1 Illustrative Example 1

[0075] Preparation method of polyfunctional fluorine-containing silicon polyurethane acrylate:

[0076] (1) Add 150g of low molecular weight poly(carbonate-ether) glycol (molecular weight 1500 Daltons) into the three-necked flask, heat to 110°C, dehydrate at -0.98MPa for 1h, cool down to 75°C, under nitrogen protection, Add 12.4g of trimethylolpropane, add 87g of 2,4-toluene diisocyanate dropwise at a rate of 5ml / min, after the dropwise addition, react for 2.5h to obtain the first intermediate;

[0077] (2) The temperature is lowered to 70°C, and 0.09g of dibutyltin dilaurate and 8g of hydroxyl polydimethylsiloxane (molecular weight 1000 Daltons) are added dropwise to the first intermediate. After the addition is completed, react for 0.5h , to obtain the second intermediate;

[0078] (3) Add 12.6g trifluoroethanol to the second intermediate, heat up to 80°C, and react for 2h; Then, add 0.57g p-hydroxyanisole, add 113g pent...

Embodiment 2

[0081] Preparation method of polyfunctional fluorine-containing silicon polyurethane acrylate:

[0082] (1) Add 700g of low-molecular-weight poly(carbonate-ether) glycol (molecular weight: 7000 Daltons) into a three-necked flask, heat to 120°C, dehydrate at -0.98MPa for 3h, cool down to 80°C, under nitrogen protection , add 14.5g trimethylolpropane, add 158g diphenylmethane-4,4-diisocyanate dropwise at a rate of 12ml / min, after the dropwise addition, react for 4h to obtain the first intermediate;

[0083] (2) The temperature is lowered to 75°C, and 0.47g of stannous octoate and 17g of hydroxyl polydimethylsiloxane (molecular weight 4000 Daltons) are added dropwise to the first intermediate. After the addition is completed, react for 2 hours to obtain the first intermediate two intermediates;

[0084] (3) Add 18.7g trifluoroethanol to the second intermediate, heat up to 85°C, and react for 3h; then, add 0.82g hydroquinone, add 235g dipentaerythritol pentaacrylate dropwise at a...

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Abstract

The invention discloses an ultraviolet light curing anti-fouling paint and a preparation method thereof to solve the technical problems of high cost, poor anti-fouling effect and endurance of an ultraviolet light curing anti-fouling paint in the prior art. The curing anti-fouling paint provided by the invention comprises by weight 38-116 parts of multifunctional fluorine-containing fluorosilicone containing polyurethane acrylate, 3-8 parts of multifunctional polyurethane acrylate, 12-18 parts of a multifunctional acrylate diluent, 0.4-1.5 parts of a photoinitiator, 0.15-0.55 part of a leveling agent and 0.1-0.7 part of a defoaming agent. The film of the anti-fouling paint provided by the invention has excellent compactness, fungal resistance and low surface energy, strong stain resistance and good anti-fouling endurance.

Description

technical field [0001] The invention relates to an ultraviolet curing antifouling coating and a preparation method thereof, belonging to the technical field of antifouling coatings. technical background [0002] UV-curable antifouling coatings have the characteristics of excellent antifouling, energy saving, and high efficiency. In recent years, they have been extensively studied in the field of antifouling coatings. In the prior art, there are generally three methods for preparing UV-curable antifouling coatings: Method 1. Esterification of organic fluorine resins with strong antifouling ability and ultra-low surface energy with acrylic substances to prepare organic The UV-curable resin of fluororesin is used as the main resin to prepare UV-curable anti-fouling coatings. However, the resin contains organic fluororesin, so the cost of the obtained anti-fouling coatings is relatively high; method two, using UV-curable The organic silicon unsaturated resin is used as the main...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D7/12C09D5/16C08G18/67C08G18/65C08G18/48C08G18/44C08G18/61C08G18/32C08G18/12
Inventor 张红明刘年江孙杨王献红李季王佛松
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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