Polyethyleneglycol-containing fluorinated polysiloxane modification acrylic acid antifouling paint and preparing method thereof

A polyethylene glycol, fluorosilicon modification technology, applied in antifouling/underwater coatings, polyether coatings, paints containing biocides, etc., can solve the problems of quaternary ammonium salt toxicity, easy adsorption of active anions, etc. Easy to use, good anti-bioadhesion, long-term use effect

Inactive Publication Date: 2015-09-02
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, quaternary ammonium salts still have certain

Method used

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  • Polyethyleneglycol-containing fluorinated polysiloxane modification acrylic acid antifouling paint and preparing method thereof
  • Polyethyleneglycol-containing fluorinated polysiloxane modification acrylic acid antifouling paint and preparing method thereof
  • Polyethyleneglycol-containing fluorinated polysiloxane modification acrylic acid antifouling paint and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The present embodiment provides the synthetic method that contains PEG prepolymer A: 20 g dimethylbenzene and 20 g butyl acetate are joined in the there-necked flask that stirrer, constant pressure separatory funnel, reflux condenser are equipped with, be heated up to 85 °C. Weigh 20 g of xylene, 20 g of butyl acetate, 1.6 g of AIBN, 50 g of butyl acrylate, 40 g of methyl methacrylate, and 10 g of allyl polyethylene glycol, mix and dissolve them, and drop them slowly within 1.5 h. Put it into a three-necked flask, and continue to keep warm for 2 h after the dropwise addition. After the temperature was raised to 110 °C, 0.4 g of AIBN, 20 g of xylene, and 20 g of butyl acetate were mixed and dissolved, and then slowly dropped into a three-necked flask within 0.5 h. After the dropwise addition, the temperature was continued for 2 h. Cooling and discharging, the hydroxyacrylic acid prepolymer A containing PEG was obtained in a white emulsion state.

Embodiment 2

[0038] This embodiment provides the synthesis method of polydimethoxysilane oligomer B: 15.1870 g tetrahydrofuran and 15.0000 g hydroxyl silicone oil are added to a three-necked flask equipped with a stirrer, a constant pressure dropping funnel, and a reflux condenser. The heating bath was heated to 65 °C. Weigh again 5.1870 g of 3-isocyanatopropyltriethoxysilane and 0.0063 g of dibutyltin dilaurate, mix and dissolve, slowly drop them into a three-necked flask under vigorous stirring, continue to keep warm for 5 h after the dropwise addition, and cool down The α,ω-triethoxysilane-terminated polydimethylsilane oligomer B was obtained in the form of a colorless transparent oil.

Embodiment 3

[0040] This example provides the synthesis method of perfluoropolyether oligomer C: 12.6870 g tetrahydrofuran and 7.5000 g bishydroxypropyl perfluoropolyether are added to the three ports equipped with agitator, constant pressure dropping funnel and reflux condenser In the flask, the oil bath was heated to 65°C. Then take by weighing 5.1870 g 3-isocyanatopropyltriethoxysilane, 0.0063 g dibutyltin dilaurate, mix and dissolve, slowly drop into the three-necked flask under vigorous stirring within 10 minutes, continue to insulate for 2 hours after the dropwise addition is completed. h, the temperature was lowered and the material was discharged to obtain a -triethoxysilane-terminated perfluoropolyether oligomer, which was denoted as PFU, and was in the form of light yellow transparent oil.

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Abstract

The invention relates to a polyethyleneglycol-containing fluorinated polysiloxane modification acrylic acid antifouling paint and a preparing method of the paint. The paint consists of the following ingredients in percentage by weight: 84 to 96 percent of polyethyleneglycol-containing acrylic acid prepolymers, 2 to 14 percent of poly-dimethoxydimethylsilane oligomers and 2 to 14 percent of perfluoropolyether oligomers. The paint provided by the invention can be solidified into a film at the room temperature through polycondensation, the use is convenient, a heat source is not needed, the energy consumption is reduced, and in addition, the paint provided by the invention contains PEG (polyethylene glycol) chain segments with the protein-resistant and antibacterial characteristics, so that better anti-biological adhesion performance is realized.

Description

technical field [0001] The invention relates to an acrylic antifouling paint and a preparation method thereof, in particular to a fluorine silicon modified acrylic antifouling paint containing polyethylene glycol and a preparation method thereof. Background technique [0002] Ships submerged in seawater for long periods of time are subject to fouling by marine organisms. When the ship is attached to marine organisms, it will increase the surface frictional resistance, reduce the speed of the ship, increase fuel consumption, and cause unnecessary economic losses. There are many ways to solve marine biofouling, and the most effective way is to apply marine antifouling paint. [0003] Traditional marine antifouling coatings were eliminated due to their backward technology, heavy pollution and short action time. Although organotin self-polishing coatings have obvious antifouling effects, organotin exists stably in water and will accumulate, which can cause deformities in some ...

Claims

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Application Information

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IPC IPC(8): C09D5/16C09D151/08C09D183/06C09D171/00C08F290/00C08F220/18C08F220/14C08G77/388
CPCC08F290/00C08G77/388C08L2205/03C09D5/1675C09D151/08C08L83/06C08L71/00C08F220/1804
Inventor 孙小英程章施利毅杭建忠金鹿江翁斌
Owner SHANGHAI UNIV
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