CN110669367B - Easily-colored inorganic wall coating and preparation method thereof - Google Patents
Easily-colored inorganic wall coating and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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Abstract
The invention provides an easy-to-color inorganic wall paint which is prepared by mixing the following components in parts by weight: 100 parts of basic white paint, 0.5-0.7 part of fatty acid derivative surfactant and 0.5-1 part of color paste; the basic white paint is prepared by mixing the following components in parts by weight: 25.8-27.8 parts of water, 0.2-0.4 part of ethyl hydroxyethyl cellulose, 0.8-1.0 part of dispersion stabilizer, 0.2-0.4 part of defoamer A, 12-16 parts of rutile titanium dioxide, 12-14 parts of calcium carbonate, 7-11 parts of calcined kaolin, 22-28 parts of inorganic potassium silicate solution, 2-4 parts of acrylic thickening protective adhesive, 5-9 parts of acrylic emulsion, 0.15-0.25 part of preservative, 0.15-0.25 part of defoamer B and 0.2-0.4 part of thickener.
Description
Technical Field
The invention relates to the technical field of building decoration functional coatings, in particular to an inorganic wall coating easy to tone and a preparation method thereof.
Background
The inorganic paint is prepared with alkali metal silicate or silica sol as main adhesive, small amount of synthetic resin emulsion, pigment, stuffing, assistant, etc. The decoration material has excellent non-inflammability, mildew and algae resistance, environment friendship, air permeability, alkali resistance and ageing resistance, so that it is used widely in indoor and outdoor wall decoration.
However, the inorganic binder used in the inorganic coating has strong basicity (the pH value is generally over 13), so that the pH value of the inorganic coating product is also higher and can reach 11-12. However, the color paste used in the architectural paint product system generally requires that the pH value environment of the product system used by the color paste is 8-9, if the color paste is directly used in an inorganic product system with a higher pH value without adjustment, alkali metal silicate in the system can destroy a wetting dispersant layer coated on the periphery of color paste pigment particles, so that the pigment particles are directly exposed, the pigment particles are flocculated, the stable system of the color paste is destroyed, the hue index of the color can be slowly changed, the problems of flooding, floating and color change are caused, and the color mixing property is extremely poor.
In the prior art, colored paste manufacturers begin to put forward special color paste systems for inorganic coatings, but most of the systems are inorganic color systems, no good solution is provided for organic color systems such as phthalocyanine blue and phthalocyanine green, and the special color paste for inorganic coatings is high in price.
The factors greatly restrict the popularization of the inorganic wall paint and also greatly limit the color selection range of terminal customers.
Disclosure of Invention
The invention aims to solve the technical problem of providing an easy-to-color-mixing inorganic wall coating and a preparation method thereof, solves the problems of easy color migration and poor color mixing property of the existing inorganic coating after color mixing by using common color paste, ensures the stability of a color system and the final use effect of a product, meets the personalized color mixing requirement of a customer, simultaneously solves the problem of high price of inorganic special color paste, and promotes the application of the inorganic coating in the field of wall decoration.
In order to solve the technical problem, the invention provides an easily-toning inorganic wall paint which is prepared by mixing and modulating the following components in parts by weight:
100 parts of basic white paint, 0.5-0.7 part of fatty acid derivative surfactant and 0.5-1 part of color paste;
the basic white paint is prepared by mixing and blending the following components in parts by weight:
25.8-27.8 parts of water, 0.2-0.4 part of ethyl hydroxyethyl cellulose, 0.8-1.0 part of a dispersion stabilizer, 0.2-0.4 part of a defoaming agent A, 12-16 parts of rutile titanium dioxide, 12-14 parts of calcium carbonate, 7-11 parts of calcined kaolin, 22-28 parts of an inorganic potassium silicate solution, 2-4 parts of an acrylic acid-like thickening protective adhesive, 5-9 parts of an acrylic emulsion, 0.15-0.25 part of a preservative, 0.15-0.25 part of a defoaming agent B and 0.2-0.4 part of a thickening agent.
Preferably, the composition is prepared by mixing the following components in parts by weight:
100 parts of basic white paint, 0.6 part of fatty acid derivative surfactant and 0.75 part of color paste;
the basic white paint is prepared by mixing and blending the following components in parts by weight:
26.8 parts of water, 0.3 part of ethyl hydroxyethyl cellulose, 0.9 part of a dispersion stabilizer, 0.3 part of a defoaming agent A, 14 parts of rutile titanium dioxide, 13 parts of calcium carbonate, 9 parts of calcined kaolin, 25 parts of an inorganic potassium silicate solution, 3 parts of an acrylic acid-like thickening protective adhesive, 7 parts of an acrylic emulsion, 0.2 part of a preservative, 0.2 part of a defoaming agent B and 0.3 part of a thickening agent.
Preferably, the appearance of the acrylic acid type thickening protective glue is light blue transparent colloid, the active ingredient is 20 percent, and the specific gravity of the acrylic acid type thickening protective glue can be dispersed in water and is 1.1 +/-0.1 g/ml; fatty acid derivative surfactant is brown liquid with effective component content of 100% and specific gravity of 1.04g/cm at 25 deg.C3Viscosity at 25 ℃ of 260 mPa.s; the ethyl hydroxyethyl cellulose is white powder in appearance, and the particle size of the ethyl hydroxyethyl cellulose is 98 percent<500 μm, water content<4% of salt content<5%, the pH value of the 1% aqueous solution is 5-7, and the viscosity of the 1% aqueous solution at 20 ℃ is 3000-4000 mPa.s.
The invention also provides a preparation method of the easily-discolored inorganic wall paint, which comprises the following steps:
firstly, preparing inorganic wall finish foundation white paint;
adding 25.8-27.8 kg of water into a production cylinder, then adding 0.2-0.4 kg of ethyl hydroxyethyl cellulose under stirring, dispersing for 30min at the rotating speed of 400 revolutions per minute, then sequentially adding 0.8-1.0 kg of dispersion stabilizer, 0.2-0.4 kg of defoamer A, 12-16 kg of rutile titanium dioxide, 12-14 kg of calcium carbonate and 7-11 kg of calcined kaolin under stirring, increasing the stirring speed to 1500 revolutions per minute after the addition, and dispersing for 30min at a high speed. And after the dispersion is finished, reducing the rotating speed to 800 revolutions per minute, sequentially adding 22-28 kg of inorganic potassium silicate solution and 2-4 kg of acrylic acid-like thickening protective adhesive, and stirring and mixing for 10-15 min at 800 revolutions per minute after the addition is finished. After uniformly mixing, adding 5-9 kg of acrylic emulsion, 0.15-0.25 kg of preservative, 0.15-0.25 kg of defoaming agent B and 0.2-0.4 kg of thickening agent in turn under stirring, and stirring for 10-15 min at 800 rpm after adding until the mixture is uniform for color mixing in the second step.
Step two, preparing the inorganic wall paint easy to color;
adding 100kg of the basic white paint prepared in the first step in the embodiment into a toning cylinder, starting stirring, adding 0.5-0.7 kg of fatty acid derivative, and mixing for 10-15 min under the stirring of 500 revolutions per minute after the addition is finished. Then adding 0.5-1 kg of water-based wall paint color paste, uniformly stirring, and modulating into a target color according to the CBCC Chinese building color card.
The invention relates to an easy-to-color inorganic wall coating and a preparation method thereof, compared with the prior design, the easy-to-color inorganic wall coating has the advantages that: when the basic white paint is manufactured, the acrylic acid-like thickening protective glue and the ethyl hydroxyethyl cellulose ether are hydrated together to form a solid cross-linked network structure, so that the alkali metal silicate or silica sol is well coated while the thickening effect is provided, a reaction channel between the alkali metal silicate or silica sol and the common color paste added during color mixing is isolated, the damage effect of the alkali metal silicate or silica sol on an inherent charge layer at the periphery of color paste particles is prevented, and the stability of the common color paste in a strong alkaline system is improved; meanwhile, when the basic white paint is used for color mixing, the characteristic that the fatty acid derivative surfactant can resist strong alkali is utilized, the surfactant is quickly adsorbed on the surfaces of the color paste particles added into an inorganic coating system, the inherent charge layer at the periphery of the color paste particles is prevented from being damaged, and the stability of the common color paste in the strong alkali system is further enhanced. Therefore, the problems of easy color migration and poor color matching performance of the inorganic coating after being mixed with colors by using common color paste are effectively solved, the stability of a color system and the final using effect of a product are ensured, the individualized color matching requirement of a customer is met, meanwhile, the cost is lower, and the application of the inorganic coating in the field of wall decoration is promoted.
Detailed Description
The technical solution of the present invention will be further described below by way of examples, and each example is only a preferred embodiment to describe the technical solution of the present invention, and is not to be construed as limiting the present invention.
The components of the invention are all the products which are commercially available.
The invention provides an easy-to-color inorganic wall paint which is prepared by mixing and modulating the following components in parts by weight:
100 parts of basic white paint, 0.5-0.7 part of fatty acid derivative surfactant and 0.5-1 part of color paste.
The basic white paint is prepared by mixing and blending the following components in parts by weight:
25.8-27.8 parts of water, 0.2-0.4 part of ethyl hydroxyethyl cellulose, 0.8-1.0 part of a dispersion stabilizer, 0.2-0.4 part of a defoaming agent A, 12-16 parts of rutile titanium dioxide, 12-14 parts of calcium carbonate, 7-11 parts of calcined kaolin, 22-28 parts of an inorganic potassium silicate solution, 2-4 parts of an acrylic acid-like thickening protective adhesive, 5-9 parts of an acrylic emulsion, 0.15-0.25 part of a preservative, 0.15-0.25 part of a defoaming agent B and 0.2-0.4 part of a thickening agent.
In order to ensure that the inorganic wall paint after color mixing does not have the problems of floating color, floating color and color change, preferably, the thickening protective adhesive is an acrylic acid-like transparent colloid with light blue appearance, 20 percent of active ingredients can be dispersed in water, and the specific gravity is 1.1 +/-0.1 g/ml; preferably, the surfactant is brown liquid with effective component content of 100%, and specific gravity of 1.04g/cm at 25 deg.C3Viscosity at 25 ℃ of 260 mPa.s; the ethyl hydroxyethyl cellulose is white powder in appearance, and the particle size of the ethyl hydroxyethyl cellulose is 98 percent<500 μm, water content<4% of salt content<5%, pH value (1% water solution) of 5-7, and viscosity (1% water solution) of 3000-4000 mPa.s at 20 ℃; the dispersion stabilizer is an anionic amine derivative, the solid content is 45%, the pH value is 7.5, and the viscosity is 450mpa.s at 25 ℃; the defoaming agent A is anion modified organic silicon, is colorless to grey-white slightly turbid liquid in appearance, and has viscosity at 20 DEG C<1000 cps; TiO of the rutile titanium dioxide2Content (wt.)>90 percent, the pH value of the aqueous suspension is 7.0-8.5, and the oil absorption is less than or equal to 20g/100 g; the calcium carbonate is white powder in appearance and whiteness>94 percent and oil absorption of 22.0 to 28.0; the calciningThe appearance of the calcined kaolin is white powder, 4000 meshes and the content of silicon dioxide is 52 percent; the potassium silicate solution is a colorless to yellowish transparent or semitransparent viscous liquid, the Baume degree Be (20 ℃) is 28.0-31.0, and the potassium oxide (K)2O) is not less than 7.5 percent, and silicon dioxide (SiO)2) More than or equal to 18.0 percent, and the modulus is 3.75-4.15; the acrylic emulsion is milky white liquid in appearance, has the solid content of 50 percent, the pH value of 6.0-7.5, the viscosity of 200-2000 cps and the specific gravity of 1.02g/cm3The lowest film forming temperature is 5 ℃; the preservative is benzisothiazolinone, the appearance is light yellow to amber transparent liquid, the content of active substances is more than 9.5 percent, and the pH value is 9-10; the defoaming agent B is polyether siloxane copolymer emulsion, the appearance of the polyether siloxane copolymer emulsion is white thixotropic liquid, the nonvolatile content of the liquid is 22.0-26.0%, the viscosity of the liquid is 50-150 mPa.s at 25 ℃, and the pH value of the liquid is 7-9; the thickener is associated hydrophobic modified polyurethane, is a gray-white to beige turbid viscous liquid with the appearance, the solid content of 19-21 percent, the pH value of 5.0-8.0 and the density of 1.02-1.08 g/cm3Viscosity of<10000 cps; the color paste is color paste for commercial common building coating emulsion paint.
Particularly, the acrylic acid type thickening protective glue is a product sold by Fossilia chinensis chemical company and with the model number of WJ-01; the fatty acid derivative surfactant is a product of MT200 produced by Clariant company; the ethyl hydroxyethyl cellulose is a product of EBS451FQ made by Aksu corporation; the dispersion stabilizer is a product sold by Beijing Australian Han chemical industry and with the model number of Lopon 827; the antifoaming agent A is a product sold by Shenzhen Hairun company and having a model number of CF-1829; the rutile titanium dioxide is a product with the model of R-2195 produced by Shandong Daien company; the calcium carbonate is a product with the model number of CC700 produced by Guangfu Jian materials company; the calcined kaolin is a product with a model number of DB-80 produced by Shanxi Jinyu science and technology company; the potassium silicate solution is a product sold by the Beijing Australian Han chemical industry and with the model number of AH-K2; the acrylic emulsion is a product of model Eco502ap produced by BASF corporation; the preservative is a BT-type product produced by Hofmann chemical company; the defoaming agent B is a product which is produced by Digao company and has the model of Airex 902 w; the thickener is a product sold by Shenzhen Shanghai Run company with model number TU 2881; the color paste is a 'Haide' series product of Hibeshi company.
The components, weights and amounts of each component of examples 1-3 and comparative examples 1-3 are shown in table one; in comparative example 1, acrylic acid-like thickening protective gel WJ-01 was used, and fatty acid derivative surfactant MT200 was not used; comparative example 2 no acrylic-like thickening protective gel WJ-01 was used, and a fatty acid derivative surfactant MT200 was used; comparative example 3 no acrylic-like thickening protective gel WJ-01 and no fatty acid derivative surfactant MT200 were used.
The test results of examples 1 to 3 and comparative examples 1 to 3 are shown in Table two.
Watch 1
Example 1
The embodiment provides a method for manufacturing an easily-discolored inorganic wall paint, which comprises the following steps:
firstly, preparing inorganic wall finish foundation white paint;
adding 25.8kg of water into a production cylinder, then adding 0.2kg of ethyl hydroxyethyl cellulose under stirring, dispersing for 30min at the rotating speed of 400 r/min, then sequentially adding 1.0kg of dispersion stabilizer, 0.2kg of defoamer, 12.0kg of rutile titanium dioxide, 14.0kg of calcium carbonate and 11.0kg of calcined kaolin under stirring, increasing the stirring speed to 1500 r/min after the addition is finished, and dispersing for 30min at a high speed. And after the dispersion is finished, reducing the rotating speed to 800 revolutions per minute, sequentially adding 28.0kg of potassium silicate solution and 2.0kg of acrylic acid-like thickening protective glue, and stirring and mixing for 10-15 min at 800 revolutions per minute after the addition is finished. After uniformly mixing, adding 5.0kg of acrylic emulsion, 0.15kg of preservative, 0.25kg of defoaming agent B and 0.4kg of thickening agent in turn under stirring, and stirring for 10-15 min at 800 rpm after adding until uniformly mixing for the second step.
Step two, preparing the inorganic wall paint easy to color;
adding 100kg of the basic white paint prepared in the first step in the embodiment into a toning cylinder, starting stirring, adding 0.7kg of fatty acid derivative, and mixing for 10-15 min under the stirring of 500 revolutions per minute after the addition is finished. Then 0.5kg of water-based wall paint color paste is added and evenly stirred, and the mixture is respectively modulated into 1216 blue, 1172 green and 0625 gray according to CBCC Chinese building color cards. The prepared colored paint is used for testing.
Example 2
The embodiment provides a method for manufacturing an easily-discolored inorganic wall paint, which comprises the following steps:
firstly, preparing inorganic wall finish foundation white paint;
26.8kg of water is added into a production cylinder, 0.3kg of ethyl hydroxyethyl cellulose is added under stirring, the mixture is dispersed for 30min at the rotating speed of 400 r/min, then 0.9kg of dispersion stabilizer, 0.3kg of defoamer, 14.0kg of rutile titanium dioxide, 13.0kg of calcium carbonate and 9.0kg of calcined kaolin are sequentially added under stirring, the stirring speed is increased to 1500 r/min after the addition, and the mixture is dispersed for 30min at a high speed. After the dispersion is finished, the rotating speed is reduced to 800 revolutions per minute, 25.0kg of potassium silicate solution and 3.0kg of acrylic acid-like thickening protective glue are sequentially added, and the mixture is stirred and mixed for 10-15 min at 800 revolutions per minute after the addition is finished. After the mixture is uniformly mixed, 7.0kg of acrylic emulsion, 0.2kg of preservative, 0.2kg of defoaming agent B and 0.3kg of thickening agent are sequentially added under stirring, and the mixture is uniformly mixed for the second step of color mixing after being added and stirred for 10-15 min at 800 revolutions per minute.
Step two, preparing the inorganic wall paint easy to color;
adding 100kg of the basic white paint prepared in the first step in the embodiment into a toning cylinder, starting stirring, adding 0.6kg of fatty acid derivative, and mixing for 10-15 min under the stirring of 500 revolutions per minute after the addition is finished. Then 0.75kg of water-based wall paint color paste is added and evenly stirred, and the mixture is respectively modulated into 1216 blue, 1172 green and 0625 gray according to CBCC Chinese building color cards. The prepared colored paint is used for testing.
Example 3
The embodiment provides a method for manufacturing an easily-discolored inorganic wall paint, which comprises the following steps:
firstly, preparing inorganic wall finish foundation white paint;
adding 27.8kg of water into a production cylinder, then adding 0.4kg of ethyl hydroxyethyl cellulose under stirring, dispersing for 30min at the rotating speed of 400 r/min, then sequentially adding 0.8kg of dispersion stabilizer, 0.4kg of defoamer A, 16.0kg of rutile titanium dioxide, 12.0kg of calcium carbonate and 7.0kg of calcined kaolin under stirring, increasing the stirring speed to 1500 r/min after the addition is finished, and dispersing for 30min at a high speed. And after the dispersion is finished, reducing the rotating speed to 800 revolutions per minute, sequentially adding 22.0kg of potassium silicate solution and 4.0kg of acrylic acid-like thickening protective glue, and stirring and mixing for 10-15 min at 800 revolutions per minute after the addition is finished. After uniformly mixing, sequentially adding 9.0kg of acrylic emulsion, 0.25kg of preservative, 0.15kg of defoaming agent B and 0.2kg of thickening agent under stirring, and stirring for 10-15 min at 800 rpm after adding until the mixture is uniformly mixed for the second step of color matching.
Step two, preparing the inorganic wall paint easy to color;
adding 100kg of the basic white paint prepared in the first step in the embodiment into a toning cylinder, starting stirring, adding 0.5kg of fatty acid derivative, and mixing for 10-15 min under the stirring of 500 revolutions per minute after the addition is finished. Then adding 1kg of water-based wall paint color paste, uniformly stirring, and respectively modulating into 1216 blue, 1172 green and 0625 gray according to CBCC Chinese building color cards. The prepared colored paint is used for testing.
Comparative example 1
Firstly, preparing inorganic wall finish foundation white paint;
26.8kg of water is added into a production cylinder, 0.3kg of ethyl hydroxyethyl cellulose is added under stirring, the mixture is dispersed for 30min at the rotating speed of 400 r/min, then 0.9kg of dispersion stabilizer, 0.3kg of defoamer A, 14.0kg of rutile titanium dioxide, 13.0kg of calcium carbonate and 9.0kg of calcined kaolin are added under stirring in turn, the stirring speed is increased to 1500 r/min after the addition, and the mixture is dispersed for 30min at a high speed. After the dispersion is finished, the rotating speed is reduced to 800 revolutions per minute, 25.0kg of potassium silicate solution and 3.0kg of acrylic acid-like thickening protective glue are sequentially added, and the mixture is stirred and mixed for 10-15 min at 800 revolutions per minute after the addition is finished. After the mixture is uniformly mixed, 7.0kg of acrylic emulsion, 0.2kg of preservative, 0.2kg of defoaming agent B and 0.3kg of thickening agent are sequentially added under stirring, and the mixture is uniformly mixed for the second step of color mixing after being added and stirred for 10-15 min at 800 revolutions per minute.
Step two, manufacturing inorganic wall paint;
100kg of white base paint prepared in the first step of the embodiment is added into a color matching cylinder, stirring is started, 0.75kg of water-based wall paint color paste is added under the stirring of 500 revolutions per minute, the mixture is uniformly stirred, and the mixture is respectively modulated into 1216 blue, 1172 green and 0625 gray according to CBCC Chinese building color cards. The prepared colored paint is used for testing.
Comparative example 2
Firstly, preparing inorganic wall finish foundation white paint;
adding 29.8kg of water into a production cylinder, then adding 0.3kg of ethyl hydroxyethyl cellulose under stirring, dispersing for 30min at the rotating speed of 400 r/min, then sequentially adding 0.9kg of dispersion stabilizer, 0.3kg of defoamer A, 14.0kg of rutile titanium dioxide, 13.0kg of calcium carbonate and 9.0kg of calcined kaolin under stirring, increasing the stirring speed to 1500 r/min after the addition is finished, and dispersing for 30min at a high speed. After the dispersion is finished, the rotating speed is reduced to 800 r/min, 25.0kg of potassium silicate solution, 7.0kg of acrylic emulsion, 0.2kg of preservative, 0.2kg of defoaming agent B and 0.3kg of thickening agent are sequentially added, and after the addition is finished, the mixture is stirred at 800 r/min for 10-15 min until the mixture is uniformly mixed for use in the second step.
Step two, manufacturing inorganic wall paint;
adding 100kg of the white base paint prepared in the first step in the embodiment into a toning cylinder, starting stirring, adding 0.6kg of fatty acid derivative, and mixing for 10-15 min under the stirring of 500 revolutions per minute after the addition is finished. Then 0.75kg of water-based wall paint color paste is added and evenly stirred, and the mixture is respectively modulated into 1216 blue, 1172 green and 0625 gray according to CBCC Chinese building color cards. The prepared colored paint is used for testing.
Comparative example 3
Firstly, preparing inorganic wall finish foundation white paint;
adding 29.8kg of water into a production cylinder, then adding 0.3kg of ethyl hydroxyethyl cellulose under stirring, dispersing for 30min at the rotating speed of 400 r/min, then sequentially adding 0.9kg of dispersion stabilizer, 0.3kg of defoamer A, 14.0kg of rutile titanium dioxide, 13.0kg of calcium carbonate and 9.0kg of calcined kaolin under stirring, increasing the stirring speed to 1500 r/min after the addition is finished, and dispersing for 30min at a high speed. After the dispersion is finished, the rotating speed is reduced to 800 r/min, 25.0kg of potassium silicate solution, 7.0kg of acrylic emulsion, 0.2kg of preservative, 0.2kg of defoaming agent B and 0.3kg of thickening agent are sequentially added, and after the addition is finished, the mixture is stirred at 800 r/min for 10-15 min until the mixture is uniformly mixed for use in the second step.
Step two, manufacturing inorganic wall paint;
100kg of white base paint prepared in the first step of the embodiment is added into a color matching cylinder, stirring is started, 0.75kg of water-based wall paint color paste is added under the stirring of 500 revolutions per minute, the mixture is uniformly stirred, and the mixture is respectively modulated into 1216 blue, 1172 green and 0625 gray according to CBCC Chinese building color cards. The prepared colored paint is used for testing.
Watch two
Note: delta E refers to the color difference value between the measured sample and the standard sample, and when delta E is less than 1, the color difference between the measured sample and the standard sample is not obvious and can not be distinguished by naked eyes; 1< Δ E < 2. there is a certain small range of color difference between the measured sample and the standard sample; the chromatic aberration is obvious when the value is 2< delta E and can be obviously distinguished by naked eyes.
As can be seen from the results in Table II, the inorganic wall coating base white paint prepared by the invention has good storage stability. According to the easy-to-color-mixing inorganic wall paint prepared by the technology, compared with the comparative example 1, the comparative example 2 and the comparative example 3, when the basic white paint is prepared, the acrylic acid-like thickening protective adhesive and the ethyl hydroxyethyl cellulose ether are hydrated together to form a three-dimensional cross-linked network structure, so that the alkali metal silicate or silica sol is well coated, and a reaction channel between the alkali metal silicate or silica sol and a common color paste added during color mixing is isolated; meanwhile, when the basic white paint is used for color mixing, the characteristic that the fatty acid derivative surfactant can resist strong alkali is utilized, the surfactant is quickly adsorbed on the surfaces of the color paste particles added into an inorganic coating system, the inherent charge layer on the periphery of the color paste particles is prevented from being damaged, and the stability of the common color paste in the strong alkali system is further enhanced. Therefore, the problems of easy color migration and poor color matching performance of the inorganic coating after being color-matched by using common color paste are effectively solved, and the stability of a color system and the final using effect of a product are ensured.
Claims (4)
1. The preparation method of the easy-to-tone inorganic wall coating is characterized by comprising the following steps of:
firstly, preparing inorganic wall finish foundation white paint;
adding 25.8-27.8 kg of water into a production cylinder, then adding 0.2-0.4 kg of ethyl hydroxyethyl cellulose under stirring, dispersing for 30min at the rotating speed of 400 revolutions per minute, then sequentially adding 0.8-1.0 kg of dispersion stabilizer, 0.2-0.4 kg of defoamer A, 12-16 kg of rutile titanium dioxide, 12-14 kg of calcium carbonate and 7-11 kg of calcined kaolin under stirring, increasing the stirring speed to 1500 revolutions per minute after the addition is finished, and dispersing for 30min at a high speed; after the dispersion is finished, reducing the rotating speed to 800 revolutions per minute, sequentially adding 22-28 kg of inorganic potassium silicate solution and 2-4 kg of acrylic acid-like thickening protective adhesive, and stirring and mixing for 10-15 min at 800 revolutions per minute after the addition is finished; after uniformly mixing, sequentially adding 5-9 kg of acrylic emulsion, 0.15-0.25 kg of preservative, 0.15-0.25 kg of defoaming agent B and 0.2-0.4 kg of thickening agent under stirring, and stirring for 10-15 min at 800 rpm after adding until the mixture is uniformly mixed for the second step;
the basic white paint is prepared by mixing and blending the following components in parts by weight:
25.8-27.8 parts of water, 0.2-0.4 part of ethyl hydroxyethyl cellulose, 0.8-1.0 part of a dispersion stabilizer, 0.2-0.4 part of a defoaming agent A, 12-16 parts of rutile titanium dioxide, 12-14 parts of calcium carbonate, 7-11 parts of calcined kaolin, 22-28 parts of an inorganic potassium silicate solution, 2-4 parts of an acrylic acid-like thickening protective adhesive, 5-9 parts of an acrylic emulsion, 0.15-0.25 part of a preservative, 0.15-0.25 part of a defoaming agent B and 0.2-0.4 part of a thickening agent;
step two, preparing the inorganic wall paint easy to color;
adding 100kg of the basic white paint prepared in the first step in the embodiment into a toning cylinder, starting stirring, adding 0.5-0.7 kg of fatty acid derivative, and mixing for 10-15 min under the stirring of 500 revolutions per minute after the addition is finished; then adding 0.5-1 kg of water-based wall paint color paste, uniformly stirring, and modulating into a target color according to the CBCC Chinese building color card.
2. An easily-toning inorganic wall paint, which is characterized by being prepared by the method of claim 1 and prepared by mixing the following components in parts by weight:
100 parts of basic white paint, 0.5-0.7 part of fatty acid derivative surfactant and 0.5-1 part of color paste.
3. The easily-tintable inorganic wall paint as claimed in claim 2, which is prepared by mixing the following components in parts by weight:
100 parts of basic white paint, 0.6 part of fatty acid derivative surfactant and 0.75 part of color paste;
the basic white paint is prepared by mixing and blending the following components in parts by weight:
26.8 parts of water, 0.3 part of ethyl hydroxyethyl cellulose, 0.9 part of a dispersion stabilizer, 0.3 part of a defoaming agent A, 14 parts of rutile titanium dioxide, 13 parts of calcium carbonate, 9 parts of calcined kaolin, 25 parts of an inorganic potassium silicate solution, 3 parts of an acrylic acid-like thickening protective adhesive, 7 parts of an acrylic emulsion, 0.2 part of a preservative, 0.2 part of a defoaming agent B and 0.3 part of a thickening agent.
4. The easy-to-tone inorganic wall coating according to claim 2 or 3, wherein the appearance of the acrylic thickening protective adhesive is light blue transparent colloid, the active ingredient is 20 percent, the active ingredient can be dispersed in water, and the specific gravity is 1.1 +/-0.1 g/ml; the fatty acid derivative surfactant is brown liquid in appearance, contains 100% of effective substances, has a specific gravity of 1.04g/cm3 at 25 ℃, and has a viscosity of 260mPa.s at 25 ℃; the ethyl hydroxyethyl cellulose is white powder in appearance, the particle size of the particles is 98% <500 mu m, the water content is <4%, the salt content is <5%, the pH value of a 1% aqueous solution is 5-7, and the viscosity of the 1% aqueous solution at 20 ℃ is 3000-4000 mPa.s.
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| CN113667332A (en) * | 2021-09-03 | 2021-11-19 | 福建省三棵树新材料有限公司 | Liquid inorganic silicate paint for color-adjustable inner wall and preparation method thereof |
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