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Epoxy blackboard paint

A technology of blackboard paint and epoxy, applied in the field of coatings, can solve the problems of dull color, rough surface, poor adhesion, etc., and achieve the effect of excellent writing performance, good mechanical properties, and strong adhesion

Inactive Publication Date: 2014-11-19
DRAGON FISH PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the multi-position solvent-based blackboard paint sold on the market will release harmful solvents that affect human health during construction and use; and the blackboard paint currently used has a fineness of about 10 μm, high gloss, and high gloss loss. The light rate is about 80%, which cannot be completely extinguished, which is harmful to the health of the eyes, and the surface is rough, not easy to wipe, the color is dull, the adhesion is poor, the flexibility is poor, it is not resistant to scrubbing, and it is not easy to write with an environmentally friendly pen; in addition, its anti-corrosion, anti-aging Weak

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The raw materials used are 40 kg of water-based epoxy emulsion, 0.1 kg of dispersant, 60 kg of titanium dioxide and calcium carbonate, 0.5 kg of polyether modified siloxane, 1.0 kg of film forming aid texnol, and 0.5 kg of acrylic acid as thickener. 60 kg of water;

[0019] The production steps are as follows:

[0020] A. Pour water into the reaction kettle first, start the mixer and add the dispersant and polyether modified siloxane at one time at a stirring speed of 400 rpm, and continue stirring for 20 minutes;

[0021] B. Continue to add titanium dioxide and calcium carbonate in sequence at a stirring speed of 400 rpm, then increase the speed to 1300 rpm, and continue stirring for more than 20 minutes;

[0022] C. Add the water-based epoxy emulsion to the resultant of step B, adjust the mixer speed to 600 rpm, and stir for more than 20 minutes;

[0023] D. Pump the material obtained in step C into a sand mill for grinding and dispersing, and grind until the fineness reaches ...

Embodiment 2

[0026] The raw materials used are 60 kg of water-based epoxy emulsion, 0.5 kg of dispersant, 40 kg of filler talc and barium sulfate, 0.1 kg of defoamer polyether modified siloxane, 2.0 kg of film-forming aid texnol, thickening Agent organic bentonite 1.0 kg, water 40 kg.

[0027] The production steps are as follows:

[0028] A. Pour water into the reaction kettle first, start the mixer to add the dispersant and polyether modified siloxane at a stirring speed of 600 rpm, and continue stirring for 20 minutes;

[0029] B. Continue to add talc and barium sulfate at a stirring speed of 600 rpm, then increase the speed to 1500 rpm and continue stirring for more than 20 minutes;

[0030] C. Add the water-based epoxy emulsion to the resultant of step B, adjust the mixer speed to 600 rpm, and stir for more than 20 minutes;

[0031] D. Pump the material obtained in step C into a sand mill for grinding and dispersing, and grind until the fineness reaches 45μm or less, then stop;

[0032] E. Pump ...

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PUM

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Abstract

The invention discloses epoxy blackboard paint and relates to the technical field of paint. The epoxy blackboard paint comprises following components, by weight: 40-60 parts of an aqueous epoxy emulsion, 0.1-0.5 parts of a dispersing agent, 40-60 parts of a pigment filling material, 0.1-0.5 parts of a foam-removing agent, 1.0-2.0 parts of film forming resin, 0.5-1.0 part of a thickening agent and 40-60 parts of water. The blackboard paint is excellent in dry writing performance, is high in hardness, is good in mechanical performances, is strong in adhesive force and is suitable for coating of various white boards specially used for teaching.

Description

Technical field [0001] The invention relates to the technical field of coatings, in particular to an epoxy blackboard paint. Background technique [0002] Traditionally, teachers use blackboards to teach students. The current blackboards occupies an important position in people's learning and life, especially when they are closely related to the learning and growth process of young people. The use of blackboard paint is related to the health of users. Many solvent-based paints for blackboard paints currently on the market release harmful solvents that affect human health during construction and use; and the currently used blackboard paints have a fineness of about 10μm, high gloss, high gloss loss, and loss. The light rate is about 80%, which can not be completely delustered, which is harmful to the health of the eyes, and the surface is rough, not easy to wipe, the color is dim, the adhesion is poor, the flexibility is poor, and it is not easy to write with environmentally frien...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/12
Inventor 韦光南刘湛光苏东荣
Owner DRAGON FISH PAINT
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