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Highly environment-friendly coating and preparation method thereof

An environmentally friendly coating and modification technology, applied in the field of coatings, can solve problems such as uneven coating film, easy yellowing of coatings, and high construction costs, and achieve uniform gloss, convenient construction and drying, and reduce construction costs.

Inactive Publication Date: 2020-02-04
恒昌涂料(惠阳)有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-environmental protection coating and a preparation method thereof, which overcomes the problems of existing coatings such as easy yellowing after use, uneven coating film and other surface defects, low gloss, toxicity, and high construction cost.

Method used

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  • Highly environment-friendly coating and preparation method thereof
  • Highly environment-friendly coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Include the following steps:

[0030] a. To prepare varnish, add cellulose acetate butyrate, polyurethane resin or modified polyurethane resin while stirring the mixed solvent, stir at a stirring speed of 700RPM / min until completely dissolved, and the stirring time is 50 minutes, for production and later deployment And it is easy to operate and prepare into varnish first;

[0031] b. To prepare high-environmental protection paint, add varnish while stirring the mixed solvent, stir at a stirring speed of 700RPM / min until completely dissolved, and stir for 50 minutes; Stir at a stirring speed of 10 minutes for 15 minutes and disperse for 2 hours. While stirring, use a three-roller grinder to grind, and use the huge shear force generated between the two rolls running at different speeds between the three-roller grinders to make the color paste fineness reach 3-10µm, so that the resin and toner can be fully moistened, and the coloring power and hiding power of the toner ca...

Embodiment 2

[0033] Include the following steps:

[0034] a. To prepare varnish, add cellulose acetate butyrate and polyurethane resin or modified polyurethane resin while stirring the mixed solvent, and stir at a stirring speed of 800RPM / min until it is completely dissolved. The stirring time is 45 minutes, for production and later deployment And it is easy to operate and prepare into varnish first;

[0035] b. To prepare high-environmental protection paint, add varnish while stirring the mixed solvent, stir until completely dissolved at a stirring speed of 800RPM / min, and stir for 45 minutes; Stir at a stirring speed of 12 minutes for 12 minutes and disperse for 2 hours. While stirring, use a three-roller grinder to grind, and use the huge shear force generated between the two rolls running at different speeds between the three-roller grinders to make the color paste fineness reach 3-10µm, so that the resin and toner can be fully moistened, and the coloring power and hiding power of the...

Embodiment 3

[0037] Include the following steps:

[0038] a. Prepare varnish, add cellulose acetate butyrate, and polyurethane resin or modified polyurethane resin while stirring the mixed solvent, stir at a stirring speed of 900RPM / min until completely dissolved, and the stirring time is 40 minutes, for production and later deployment And it is easy to operate and prepare into varnish first;

[0039]b. Prepare high environmental protection paint, add varnish while stirring the mixed solvent, stir until completely dissolved at a stirring speed of 900RPM / min, and stir for 40 minutes; Stir at a stirring speed of 10 minutes for 10 minutes and disperse for 2 hours. While stirring, use a three-roller grinder to grind, and use the huge shear force generated between the two rolls running at different speeds between the three-roller grinders to make the color paste fineness reach 3-10µm, so that the resin and toner can be fully moistened, and the coloring power and hiding power of the toner can b...

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Abstract

The invention provides highly environment-friendly coating and a preparation method thereof. The highly environment-friendly coating is prepared from the following components in percentage by mass: 25-35% of polyurethane resin or modified polyurethane resin, 5-10% of cellulose acetate butyrate, 40-50% of a mixed solvent, 10-18% of toner, 0.5-1% of a leveling agent, and 1-2% of a wetting agent. Onthe surface of a polystyrene foam substrate, the coating has excellent adhesive force, has good chemical drug resistance, resists acid, alkali and salt, and is good in after-tack resisting property, the appearance of a coating film is bright in color, the coating film is uniform and flat in gloss, surface defects are avoided, water resistance and yellowing resistance are high, and storage stability is good; and the coating is coated on the surfaces of simulated food toys, thus the simulated food toys achieve the vivid sensory effect, and the coating can be used on the surfaces of child early education and intelligence toys, and is environmentally friendly and free of toxicity.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-environmental protection coating and a preparation method thereof. Background technique [0002] The simulated food toys with styrofoam substrates have a certain degree of softness and can quickly return to their original shape after being compressed and deformed. They are favored by consumers. However, there are relatively few studies on the surface coatings of simulated food toys with styrofoam substrates. The performance of this type of coating on the toy is relatively poor, and there are problems such as uneven coating film, easy yellowing, and low gloss, resulting in poor appearance of the toy. In addition, when young children put toys in contact with or in their mouths, the paint needs to meet certain environmental toxicity standards, such as the European EN71-3 environmental protection standard, and REACH’s regulations on plasticizer phthalates and polycyclic aroma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/14C09D7/61C09D7/65
CPCC08L2205/025C08L2205/035C09D175/04C09D175/14C09D7/61C09D7/65C08L1/14C08L83/04C08L75/04C08L67/04C08K3/36
Inventor 陆静钦宋聪
Owner 恒昌涂料(惠阳)有限公司