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Efficient formaldehyde purification water-based sepiolite paint and preparation method thereof

A technology of sepiolite and aldehyde-free type, which is applied in the field of high-efficiency aldehyde-free water-based sepiolite coatings. It can solve problems such as pore blockage, collapse, and difficulty in ensuring adsorption effects, and achieve anti-formaldehyde heat storage stability and adsorption capacity. high effect

Inactive Publication Date: 2019-05-31
湘潭海泡石科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic functional water-based coating products, such as water-based diatom coatings, use calcined diatom earth as the functional material, but in order to improve the whiteness and hiding power of calcined diatom earth, a flux is added to the original diatom earth for high-temperature calcination. The channels are almost completely collapsed, and the composition is amorphous SiO 2 Mainly, the specific surface area is close to 0, and the structure is bulky. After adding a large amount of adhesive materials such as emulsion, the pores are seriously blocked, and the adsorption effect is difficult to guarantee.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-efficiency net aldehyde-type water-based sepiolite coating, comprising the following components: 15 parts of deionized water, 5 parts of sepiolite, 1.0 parts of surface modifier, 50 parts of inorganic mineral filler, magnesium aluminum silicate inorganic gel 0.5 parts, 2.0 parts of functional additives, 1.0 parts of anti-mildew and antibacterial materials, 19 parts of adhesive materials, 5 parts of titanium dioxide, 1.0 parts of pigments, and 0.5 parts of cellulose.

[0028] Wherein, the particle size of the sepiolite is 500 mesh, the sepiolite grade is 80%, and the specific surface area is 200 m 2 / g, whiteness 50%. The surface modifier is a silane coupling agent. The inorganic mineral filler is a mixture of calcium carbonate and kaolin, the particle size is 400 or 800 mesh, and the whiteness is not less than 85%. The functional additives are defoamers, dispersants, thickeners and pH regulators. The anti-mildew and antibacterial materials are tetrapod-like na...

Embodiment 2

[0035] A high-efficiency net aldehyde-type water-based sepiolite coating, comprising the following components: 15 parts of deionized water, 10 parts of sepiolite, 2.0 parts of surface modifier, 45 parts of inorganic mineral filler, magnesium aluminum silicate inorganic gel 1.0 parts, 2.0 parts of functional additives, 2.5 parts of anti-mildew and antibacterial materials, 10 parts of adhesive materials, 10 parts of titanium dioxide, 2.0 parts of pigments, and 0.5 parts of cellulose.

[0036] Wherein, the particle size of the sepiolite is 800 mesh, the grade of sepiolite is 85%, and the specific surface area is 220 m 2 / g, whiteness 53%. The surface modifier is a mixture of silane coupling agent and titanium tetrachloride. The inorganic mineral filler is a mixture of calcium carbonate, talcum powder, diatomaceous earth and kaolin, the particle sizes are 400, 800, 500 and 4000 mesh in turn, and the whiteness is not less than 80%. The functional additives are defoamers, dispersa...

Embodiment 3

[0043] A high-efficiency net aldehyde-type water-based sepiolite coating, including the following components: 20 parts of deionized water, 15 parts of sepiolite, 0.4 parts of surface modifier, 20 parts of inorganic mineral filler, magnesium aluminum silicate inorganic gel 2.0 parts, 5.0 parts of functional additives, 1.0 parts of anti-mildew and antibacterial materials, 25 parts of adhesive materials, 10 parts of titanium dioxide, 1.0 parts of pigments, and 0.6 parts of cellulose.

[0044] Wherein, the particle size of the sepiolite is 1000 mesh, the sepiolite grade is 86%, and the specific surface area is 270 m 2 / g, whiteness 56%. The surface modifier is a mixture of silane coupling agent and polyacrylate. The inorganic mineral filler is a mixture of calcium carbonate, zeolite, mica powder and wollastonite, with a particle size of 800, 400, 1250 and 800 mesh, and a whiteness of not less than 81%. The functional additives are defoamers, dispersants, thickeners, and pH regul...

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Abstract

The invention discloses efficient formaldehyde purification water-based sepiolite paint which is prepared from, by weight, 15-25 parts of deionized water, 5-25 parts of sepiolite, 0.1-5.0 parts of surface modifying agents, 10-50 parts of inorganic mineral fillers, 0.5-5.0 parts of magnesium aluminum silicate inorganic gel, 0.5-5.0 parts of function additives, 0.5-5.0 parts of anti-mildew and antibacterial materials, 5-25 parts of bonding materials, 5-25 parts of titanium dioxide, 0.1-5.0 parts of pigments and 0.2-1.0 part of cellulose. The preparation method includes the steps: 1) preparing suspension liquid from sepiolite and deionized water, dispersing the suspension liquid at high speed to form gel-like substances, and heating mixture to reach the temperature of 60-70 DEG C, and addingthe surface modifying agents; 2) preparing suspension liquid from magnesium aluminum silicate inorganic gel, and dispersing the suspension liquid to prepare pregel; 3) adding the function additives into the deionized water to stir mixture, adding the inorganic mineral fillers, the titanium dioxide, the sepiolite prepared in the step 1), the magnesium aluminum silicate inorganic gel prepared in thestep 2) and the cellulose to stir mixture, and adding the bonding materials, the anti-mildew and antibacterial materials and the pigments. The paint removes odor and is environmentally friendly, resistant to formaldehyde and excellent in heat storage stability.

Description

technical field [0001] The invention relates to a water-based paint for building interior walls, in particular to a high-efficiency aldehyde-cleaning water-based sepiolite paint. Background technique [0002] Sepiolite is a clay-like inorganic mineral material, β-type, monoclinic crystal system, a natural hydrous magnesium-rich silicate mineral, with a layered chain crystal structure. The general chemical formula is Mg 8 (OH 2 ) 4 [Si 6 o 15 ] 2 (OH) 4. 8H 2 O. The appearance is off-white, and the whiteness varies according to the grade, impurity content and type, generally 30-60%. Because of its surface negative charge and unique silicon-oxygen tetrahedron and magnesium-oxygen octahedral structure, it has polar adsorption properties, rheological properties and ion exchange properties. Compared with traditional non-metallic mineral materials, it is used in air purification, especially in building interiors The field of air purification has broad application prospec...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D1/04C09D131/04C09D125/14C09D1/00C09D5/14C09D7/62C09D7/65C09D7/61
Inventor 程琪林曾召刚陈丽昆吴婷杨婧源龙臻彦杨少敏
Owner 湘潭海泡石科技有限公司
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