Emulsion of sunlight irradiation crosslinking hud polymer, preparation method and application

A technology of polymer emulsion and sunlight, applied in the direction of latex paint, etc., can solve the problems of inaccurate preparation ratio, short pot life of two-component paint, high toxicity of raw materials, etc., and achieve outstanding environmental protection performance, good blocking resistance, drying fast effect

Inactive Publication Date: 2007-12-26
周伯涛 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

U.S. Patent No. 7,091,278 (2006.8.15) uses water-based hydroxyacrylic resin and isocyanate crosslinking agent to prepare two-component water-based coatings, but the two-component coatings have short pot life, need to be ...

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  • Emulsion of sunlight irradiation crosslinking hud polymer, preparation method and application
  • Emulsion of sunlight irradiation crosslinking hud polymer, preparation method and application

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Embodiment 1

[0033]The components of the solar radiation crosslinked core-shell polymer emulsion of embodiment one, embodiment two, embodiment three are shown in the following table:

[0034] Table 1

[0035]

[0036] Methyl methacrylate

[0037] The preparation device of solar radiation crosslinked core-shell polymer emulsion is shown in Figure 1, including polymerization kettle 1, jacket 2, agitator 3, condenser 4, initiator header tank 5, regulator header tank 6, unit Body height tank 7, vacuum pump 8, when specifically preparing sunlight irradiation cross-linked core-shell polymer emulsion, the core emulsion is prepared first: add deionized water required for the formula into polymerization kettle 1, and mix the total amount of monomers by 1.0 to 5.0 % of the emulsifier, 0.1-1.0% of the buffering agent of the total amount of mixed monomers are put into the polymerization kettle 1 to dissolve, and the temperature is raised to 50-90° C., and 50% of the total amount of...

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Abstract

This invention relates to an acrylate copolymer, more specifically, a sunlight radiation-crosslinked polymer emulsion, its preparation method and its application. The polymer emulsion is composed of: water 50-70 wt.%, emulsifier 0.5-5.0 wt.%,, initiator 0.2-1.0 wt.%, alkyl acrylate 3-40 wt.%, alkyl methacrylate 3-40 wt.%, hydroxyalkyl (meth)acrylate 1.0-10 wt.%, alkyl acrylic acid 0.5-10 wt.%, other acrylate functional monomers 0.5-10 wt.%,, and self-crosslinking monomer 0.5-5.0 wt.%. The self-crosslinked core-shell emulsion is composed of cores with a higher glass transition temperature, and shells with a lower glass transition temperature. The emulsion has such advantages as low film-forming temperature, low film-forming aid consumption, and high hardness of the film, and is environmentally friendly.

Description

technical field [0001] The invention relates to an acrylate copolymer, in particular to a solar radiation crosslinked core-shell polymer emulsion and its preparation method and application. Background technique [0002] Compared with traditional solvent-based coatings, acrylic water-based coatings use water as the dispersion medium, so they have the advantages of saving resources and energy, not polluting the environment, non-toxic, non-flammable, and low cost, and can be widely used in construction, metal, etc. and wood surface coating. The homogeneous polymers obtained by ordinary emulsion polymers are contradictory in the hardness of the coating film and the film-forming temperature. To obtain a high-hardness coating film, a polymer with a high glass transition temperature is required, and it is necessary to increase the film-forming temperature when forming a film. The amount of additives will increase the VOC of water-based coatings, which is not conducive to environme...

Claims

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Application Information

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IPC IPC(8): C08F220/10C08F220/18C08F2/24C08F4/30C08F2/48C08F2/38C09D133/08C09D5/02
Inventor 周伯涛胡新华
Owner 周伯涛
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