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A kind of matte transparent dustproof cover paint and preparation method thereof
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A dust-proof and transparent technology, applied in the coating and other directions, can solve the problems of high cost, short product shelf life, and easy floating of glass powder and inhaled by the human body.
Active Publication Date: 2020-04-21
SHANGHAI CARPOLY PAINT
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Problems solved by technology
[0003] The traditional matte dust-proof topcoat is to add glass powder to make the surface of the paint rough, so as to obtain a matte effect of diffuse reflection. However, this method has many defects. First, the glass powder will reduce the transparency of the dust-proof topcoat, affecting The display of the color of the middle coating, uneven construction thickness can easily cause blooming; secondly, glass powder is very easy to precipitate and flocculate, once this happens, the paint film may turn white, so the shelf life of the product is extremely short; in addition, glass powder is easy to float and be Human body inhalation poses a greater threat to production workers and has certain environmental hazards
These defects limit the promotion of products
[0004] In recent years, although there are other matte dust-proof topcoat technologies, such as the use of matte emulsion with excellent particle size matching, which can overcome most of the above-mentioned defects, but the cost is high, the gloss of the emulsion is not stable enough, and the formulation design space of paint companies is limited. also very obvious
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Embodiment 1
[0027] The preparation method of matte transparent dustproof cover paint, comprises the steps:
[0028] (1) Mix 40 parts of water, 2 parts of ethylene glycol, 2 parts of dodecyl alcohol ester, 0.2 part of emulsifier, 0.1 part of defoamer, and 0.2 part of bactericide, and stir with a disperser for 10-12 minutes to make a liquid Emulsified suspension with a particle size of 10-20 μm;
[0029] (2) Add 50 parts of silicone emulsion to the emulsified suspension prepared in step (1) and stir evenly;
[0030] (3) Add 0.5 part of polyurethane thickener, 0.5 part of hydrophobic modified alkali swelling thickener, 0.1 part of pH regulator, and 4.4 parts of water to adjust the viscosity to 70KU and pH value to 8 to obtain a matte transparent dustproof finish paint .
Embodiment 2
[0032] The preparation method of matte transparent dustproof cover paint, comprises the steps:
[0033] (1) Mix 40 parts of water, 1.8 parts of ethylene glycol, 2 parts of dodecyl alcohol ester, 0.2 part of emulsifier, 0.1 part of defoamer, and 0.2 part of fungicide, and stir with a disperser for 10-12 minutes to make droplets Emulsified suspension with a particle size of 10-20 μm;
[0034] (2) Add 45 parts of silicone emulsion to the emulsified suspension prepared in step (1) and stir evenly;
[0035] (3) Add 0.5 part of polyurethane thickener, 0.7 part of hydrophobically modified alkali swelling thickener, 0.1 part of pH regulator, 9.4 parts of water to adjust viscosity to 70KU and pH value to 8 to obtain matte transparent dustproof finish paint .
Embodiment 3
[0037] The preparation method of matte transparent dustproof cover paint, comprises the steps:
[0038] (1) Mix 37 parts of water, 2 parts of ethylene glycol, 3 parts of dodecyl alcohol ester, 0.25 parts of emulsifier, 0.1 part of defoamer, and 0.2 parts of fungicide, and stir with a disperser for 10-12 minutes to make a liquid Emulsified suspension with a particle size of 10-20 μm;
[0039] (2) Add 55 parts of silicone emulsion to the emulsified suspension prepared in step (1) and stir evenly;
[0040] (3) Add 0.45 part of polyurethane thickener, 0.4 part of hydrophobically modified alkali swelling thickener, 0.1 part of pH regulator, 1.5 part of water to adjust viscosity to 70KU and pH value to 8 to obtain matte transparent dustproof finish paint .
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Abstract
The invention discloses matte and transparent dustproof cover finish paint. The matte and transparent dustproof cover finish paint is prepared from organic silicone emulsion, a polyurethane thickener, a hydrophobically modified alkali solution swelling thickener, an emulsifier, a de-foaming agent, a fungicide, a pH (Potential of Hydrogen) regulator, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, ethylene glycol and water. The invention further discloses a preparation method of the matte and transparent dustproof cover finish paint. The key step of the preparation method is to prepare the 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and the ethylene glycol into milky suspension liquid with the grain diameter of 10mum to 20mum; dispersed small liquid drops are uniformly distributed in a paint film in a coating construction process; in a drying process, the small liquid drops close to a surface gradually protrude out of the surface of the paint film under the action of surface tension; the volatilization speed of the small liquid drops is slower than that of water, so that a plurality of concave pits are formed in the surface of the paint film after the paint film is dried, and furthermore, a matte effect is obtained on the surface of the paint film through diffuse reflection of light.
Description
technical field [0001] The invention relates to the technical field of paint preparation, in particular to a matte transparent dustproof finish paint and a preparation method thereof Background technique [0002] Transparent dustproof topcoat is a kind of coating widely used in the construction field, which is used to protect the middle coating from environmental erosion and improve the weather resistance and stain resistance of architectural coatings. Transparent dust-proof topcoats usually have two types: matte and glossy. Because matte dustproof topcoats have the characteristics of covering uneven defects on the wall and more fully displaying the color of the middle coating, they are used more than glossy dustproof topcoats. [0003] The traditional matte dust-proof topcoat is to add glass powder to make the surface of the paint rough, so as to obtain a matte effect of diffuse reflection. However, this method has many defects. First, the glass powder will reduce the trans...
Claims
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Application Information
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