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Silicone modified acrylic resin and application

A technology of silicon-modified acrylic acid and resin, applied in the field of resin manufacturing, can solve the problems of low surface performance, poor dispersion stability, low hydrolysis rate of polymer film, etc.

Active Publication Date: 2020-08-14
上海亿祺化工技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the preparation of organosilicon-modified hydroxyacrylic resin is mainly prepared by emulsion polymerization. The particle size range of the organosilicon-modified hydroxyacrylic emulsion prepared by this preparation method is 30-500nm, and the appearance of the coating film is generally poor. poor gloss
People also have attempts to adopt vinyl-containing siloxane monomers and vinyl polymer monomers to carry out solution polymerization, as US5795374 discloses a polymer containing triorganosilyl groups used for ship antifouling coatings, but the prepared polymerization The hydrolysis rate of the film is very low, so it cannot be applied to "high pollution environment", such as inland sea or the sea area of ​​the country that allows the ship to park in this environment, or the sea area of ​​the country where the ship is frequently park

Method used

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  • Silicone modified acrylic resin and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Put xylene and butanol (80mL, 3:1) into the reaction kettle, heat up to 100°C, add dropwise a mixed monomer containing 0.4g of dibenzoyl peroxide, the mixed monomer is ethyl methacrylate ( 53g), isooctyl acrylate (3g), KH570 (15g), styrene ethyltrimethoxysilane (10g), Bisomer PEM63P HD (19g); Formyl 0.05g, until the monomer conversion rate is more than 99%, the resin A1 is obtained.

Embodiment 2

[0051] Put xylene and butanol (80mL, 3:1) into the reaction kettle, raise the temperature to 100°C, add dropwise a mixed monomer in which 0.4g of dibenzoyl peroxide is dissolved, the mixed monomer is butyl methacrylate ( 66g), isobornyl acrylate (3.4g), KH570 (15g), styrene ethyltrimethoxysilane (10g), Bisomer PEM63P HD (19g); after the dropwise addition, keep at the same temperature for 2h, then add diperoxide Benzoyl 0.05g, the resin meter A2 is obtained until the monomer conversion rate is more than 99%.

Embodiment 3

[0053] Put xylene and butanol (80mL, 3:1) into the reaction kettle, raise the temperature to 100°C, add dropwise a mixed monomer in which 0.4g of dibenzoyl peroxide is dissolved, the mixed monomer is butyl methacrylate ( 66g), isobornyl acrylate (3.4g), KH570 (15g), styrene ethyltrimethoxysilane (10g), Bisomer PPM5 LI (14g); after the dropwise addition, keep at the same temperature for 2h, then add diperoxide Benzoyl 0.05g, the resin meter A3 is obtained to the monomer conversion rate above 99%.

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PUM

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Abstract

The invention relates to the technical field of resin manufacturing, in particular to silicone modified acrylic resin and application. The silicone modified acrylic resin is prepared by taking a vinylpolymerization monomer as a main body and carrying out graft copolymerization on a silicon-containing monomer in the presence of a hydrophilic monomer, wherein the number-average molecular weight ofthe silicone modified acrylic resin is 10000-30000, and the glass transition temperature of the silicone modified acrylic resin is 30-45 DEG C. The silicon-containing monomer is subjected to graft copolymerization in the presence of the hydrophilic monomer by taking the vinyl polymerization monomer as a main body, and the prepared resin can be stably hydrolyzed and provides long-acting self-polishing property, so that a good and long-term antifouling agent release property is obtained.

Description

technical field [0001] The invention relates to the technical field of resin production, and more specifically relates to a silicon-modified acrylic resin and its application. Background technique [0002] There are many types of marine antifouling coatings, but at present, marine antifouling coatings are the most widely used and the most effective antifouling coatings are self-polishing antifouling coatings. Among the components of self-polishing antifouling coatings, film-forming resin is the most critical technology, and the polishing effect of self-polishing coatings is produced by the hydrolysis of film-forming resins. Therefore, how to synthesize the resin has also become a research hotspot. Generally, acrylic resins modified by zinc, copper, and silicon are the main directions. Among them, silicon modification has the best effect and best timeliness, but it is also the most difficult to control and the highest cost. [0003] At present, the preparation of organosili...

Claims

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Application Information

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IPC IPC(8): C08F283/06C08F220/18C08F230/08C09D133/08C09D151/06C09D5/16
CPCC08F283/065C08F220/1802C08F220/1804C09D143/04C09D151/06C09D5/1662C09D5/1668C09D5/1687C09D5/1625C08K2003/2272C08K2003/2248C08F220/1808C08F230/085C08F220/1811C08K13/06C08K3/346C08K3/22C08K5/0091
Inventor 黄雪萍卫贤华
Owner 上海亿祺化工技术有限公司
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