Aqueous blackboard paint

A blackboard paint, water-based technology, applied in the field of blackboard paint, can solve the problem of solvent release and other problems, achieve the effects of high density, improve the compactness and salt spray resistance of the paint film, and the shape is complete and uniform

Active Publication Date: 2013-08-14
SHANXI HUABAO NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a water-based blackboard paint in order to solve the solvent release problem of the existing solvent-based blackboard paint

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Water-based blackboard paint, comprising each component of following parts by weight:

[0046] Water 260.0, dispersant 1.0, wetting agent 1.5, defoamer 1.0, pigment 200.0, filler 120.0, acrylic emulsion 200.0, coalescent 15.0, thickener 3.0;

[0047] Described film-forming aid is texnol; Described thickener is the acrylic acid thickener and organic bentonite of any proportion;

[0048] To prepare, follow these steps:

[0049] (1) First add water into the reaction kettle, then add wetting agent, dispersant, and defoamer in sequence at a stirring speed of 100 rpm, and continue stirring for 30 minutes;

[0050] (2) Add pigments and fillers while stirring, speed up the stirring speed to 600 rpm, and disperse at high speed for 60 minutes;

[0051] (3) Then add the emulsion, adjust the speed to 900 rpm, and stop stirring after 30 minutes;

[0052] (4) Pump the material into the grinder for grinding and dispersing, grind until the fineness reaches below 45 μm, and stop the ...

Embodiment 2

[0061] Water-based blackboard paint, comprising each component of following parts by weight:

[0062] Water 260.0, dispersant 1.0, wetting agent 1.5, defoamer 1.0, pigment 200.0, filler 120.0, water-based epoxy emulsion 200.0, film-forming aid 15.0, thickener 3.0;

[0063] Described film-forming aid is ethylene glycol butyl ether; Described thickener is acrylic acid thickener;

[0064] To prepare, follow these steps:

[0065] (1) First add water into the reaction kettle, then add wetting agent, dispersant, and defoamer in sequence at a stirring speed of 200 rpm, and continue stirring for 35 minutes;

[0066] (2) Add pigments and fillers while stirring, speed up the stirring speed to 800 rpm, and disperse at high speed for 80 minutes;

[0067] (3) Then add the emulsion, adjust the speed to 1000 rpm, and stop stirring after 30 minutes;

[0068] (4) Pump the material into the grinder for grinding and dispersing, grind until the fineness reaches below 45 μm, and stop the machin...

Embodiment 3

[0077] Water-based blackboard paint, comprising each component of following parts by weight:

[0078] Water 260.0, dispersant 1.0, wetting agent 1.5, defoamer 1.0, pigment 200.0, filler 120.0, water-based epoxy emulsion 200.0, film-forming aid 15.0, thickener 3.0;

[0079] The film-forming aid is propylene glycol monomethyl ether and dipropylene glycol methyl ether in any proportion, and the thickener is an acrylic acid thickener.

[0080] (1) Add water into the reaction kettle first, then add wetting agent, dispersant, and defoamer in sequence at a stirring speed of 300 rpm, and continue stirring for 40 minutes;

[0081] (2) Add pigments and fillers while stirring, speed up the stirring speed to 500 rpm, and disperse at high speed for 90 hours;

[0082] (3) Then add the emulsion, adjust the speed to 8000 rpm, and stop stirring after 30 minutes;

[0083] (4) Pump the material into the grinder for grinding and dispersing, grind until the fineness reaches below 45 μm, and stop...

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PUM

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Abstract

The invention discloses an aqueous blackboard paint which solves the problem of solvent release of existing solvent type blackboard paints. The aqueous blackboard paint comprises the following components in parts by mass: 260 parts of water, 1 part of dispersant, 1.5 parts of a wetting agent, 200 parts of emulsion, 1 part of a defoamer, 200 parts of pigment, 120 parts of filler, 15 parts of coalescing agents and 3 parts of thickener. The preparation method comprises the following steps of: during preparation, adding water into a reaction kettle, adding the wetting agent, the dispersant and the defoamer at 100-300 r/m, and stirring for 30-40 minutes; adding the pigment and filler under stirring, and dispersing for 1-1.5 hours at 500-800 r/m; then, adding the emulsion, and stirring for 30 minutes at 800-1000 r/min; pumping the materials to a grinding miller, and grinding the materials till the fineness is below 45 microns; and pumping the grinded materials to a proportioning kettle, adding the coalescing agents, the defoamer and the thickener, and adjusting the viscosity to discharge and package so as to obtain a finished product. According to the paint provided by the invention, various film forming matters in different performances are adopted to compound and modify, so that demands of the blackboard paint such as high hardness, scrubbing resistance, wear resistance and color residual prevention are satisfied.

Description

technical field [0001] The invention relates to a blackboard paint, in particular to a water-based blackboard paint. Background technique [0002] Blackboard plays an important role in people's learning and life, especially closely related to children's learning and growth process. The use of blackboard paint is also related to the health of users. Most of the existing blackboard paints on the market are solvent systems, which will release harmful solvents that affect human health during construction and use. [0003] In order to meet the needs of the market, it is urgent to develop a product that can replace solvent-based blackboard paint to meet the requirements of high hardness, scrub resistance, wear resistance, and color residue prevention of blackboard paint, while solving the problem of release of harmful substances. Contents of the invention [0004] The invention provides a water-based blackboard paint in order to solve the solvent release problem of the existing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C09D7/12C08F220/44C08F2/24C08F212/08C09D133/12C08F220/18
Inventor 王爱民
Owner SHANXI HUABAO NEW MATERIALS CO LTD
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