Air-drying water-soluble acrylic resin and preparation method thereof

An acrylic resin, water-soluble technology, applied in the direction of coating, etc., can solve the problems of inability to prepare light-colored paint, easy peeling off of the coating film, and easy yellowing of alkyd resin, so as to promote adhesion stability, improve drying performance, and excellent The effect of water resistance

Active Publication Date: 2021-05-28
广东迪爱生彤德树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN201210560587.2 introduces an air-drying alkyd resin and its preparation method, but the alkyd resin has the disadvantages of easy yellowing, inability to prepare light-colored paints, and the coating film is brittle and easy to fall off under long-term high-temperature irradiation. Dry water-soluble acrylic resin becomes one of the best choices

Method used

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  • Air-drying water-soluble acrylic resin and preparation method thereof
  • Air-drying water-soluble acrylic resin and preparation method thereof
  • Air-drying water-soluble acrylic resin and preparation method thereof

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preparation example Construction

[0063] The second aspect of the present invention provides a method for preparing an air-dried water-soluble acrylic resin as described above, including: adding a monomer mixture, an initiator and a special monomer into a solvent, reacting, adding a neutralizer and deionized water , to obtain the acrylic resin.

[0064] In one embodiment, the preparation method of the air-dried water-soluble acrylic resin of the present invention includes: adding the monomer mixture, the initiator and the special monomer into the solvent for 3-4 hours under the protection of nitrogen, reacting, adding And agent, after mixing, add deionized water to obtain the acrylic resin.

[0065] In order to eliminate residual reactive monomers, additional initiators can be added during the reaction. In one embodiment, the reaction temperature of the present invention is 70-160°C, preferably 80-140°C, more preferably 85-125°C.

[0066]The method of adding monomer mixture, initiator and special monomer in ...

Embodiment 1

[0076] Example 1 also provides the preparation method of the above-mentioned acrylic resin, including: under a nitrogen atmosphere, the temperature of the solvent is raised to 125 ° C, after 3 hours, the monomer mixture is added dropwise, and after the special monomer is diluted with a solvent, 20- 30min, after 1h of heat preservation, add the mixture of initiator and solvent, and heat preservation for 3h again, add neutralizer, after stirring for 30min, add deionized water to obtain light yellow transparent viscous liquid.

Embodiment 2

[0077] Embodiment 2 also provides the preparation method of the above-mentioned acrylic resin, comprising: under a nitrogen atmosphere, the temperature of the solvent is raised to 90° C., 4 / 5 of the monomer mixture is added dropwise in 3 hours, and the remaining 1 / 5 of the monomer mixture and 20g of N-(butoxymethyl)-acrylamide was mixed and added dropwise for 1 hour. After 1 hour of heat preservation, the mixture of initiator and solvent was added, and again heat preservation of 3 hours was added. Neutralizing agent was added and stirred for 30 minutes. Deionized water was added to obtain Light yellow transparent viscous liquid.

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Abstract

The invention relates to the technical field of polymer preparation, in particular to air-drying water-soluble acrylic resin and a preparation method thereof; the air-drying water-soluble acrylic resin comprises 20-40 wt% of a solvent; 40-50 wt% of a monomer mixture; 0.5-5 wt% of a special monomer; 0.01-1 wt% of an initiator; 5-10 wt% of a neutralizer; and 5-15 wt% of deionized water. The water-soluble acrylic acid disclosed by the invention has excellent water resistance, has good adhesive force on substrates such as tinplate, galvanized steel, aluminum materials, glass, wood and the like, and can be used for preparing self-spraying paint and interior wall waterproof paint. According to the invention, special functional groups, such as phosphate group, amide group, carbamido group, carbamate group, siloxane group and epoxy group, are synthesized through free radical reaction; meanwhile, the material contains the macromolecules with hydrophilic groups such as carboxyl and hydroxyl; after neutralization by adding a neutralizer, air-drying water-soluble acrylic resin is obtained, and the acrylic resin has proper viscosity and can promote formation of a uniform coating on a base material and promote improvement of water resistance.

Description

technical field [0001] The invention relates to the technical field of polymer preparation, more specifically, the invention relates to an air-dried water-soluble acrylic resin and a preparation method thereof. Background technique [0002] Self-spray paint is a kind of paint that is processed by a special method and then filled with high pressure, which is convenient for spraying. It is also called hand-spray paint. Self-spray paint has a wide range of uses. Through economic development in recent years, the use has developed from the initial repair of paint film defects to molds, industrial machinery, toys, handicrafts, musical instruments, buildings, steel structures, advertising, publicity, signs, In various industries such as graffiti, farmers will also use different colors of self-painting to distinguish or number their own cattle and sheep. Therefore, self-painting must be water-based to reduce VOC emissions to the atmosphere. [0003] Because dairy-type and water-di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F218/10C08F220/06C08F220/20C08F220/18C08F212/08C08F218/08C08F220/58C08F220/28C08F230/08C08F222/38C08F220/34C09D131/02C09D125/14C09D131/04
CPCC08F218/10C08F212/08C08F218/08C09D131/02C09D125/14C09D131/04C08F220/06C08F220/20C08F220/1808C08F220/1812C08F220/58C08F220/283C08F230/085C08F222/385C08F220/34
Inventor 甄亚枝陈亚男陈鹏
Owner 广东迪爱生彤德树脂有限公司
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