CN112341889A - Texture coating and preparation method and application thereof - Google Patents
Texture coating and preparation method and application thereof Download PDFInfo
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- CN112341889A CN112341889A CN202011380794.0A CN202011380794A CN112341889A CN 112341889 A CN112341889 A CN 112341889A CN 202011380794 A CN202011380794 A CN 202011380794A CN 112341889 A CN112341889 A CN 112341889A
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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
- C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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Abstract
The invention relates to a texture coating and a preparation method and application thereof, wherein the texture coating comprises the following components in parts by weight: 7-12 parts of water, 12-25 parts of silicone-acrylate emulsion, 2-5 parts of silica sol, 20-75 parts of sand, 0.1-25.5 parts of filler and 0.1-3.6 parts of auxiliary agent. The texture coating has good weather resistance, has stone-like texture in effect, combines three products of putty, transparent primer and solid color primer into one product, and saves construction procedures.
Description
Technical Field
The invention relates to the field of building materials, in particular to a texture coating and a preparation method and application thereof, and particularly relates to a three-in-one texture coating matched with sand-in-water, and a preparation method and application thereof.
Background
With the development of times and social progress, people have higher and higher pursuits on living quality, the stone materials such as granite, marble and the like are durable and have heavy texture, and the texture coating is popular in the market with higher stone imitation effect.
CN111234570A discloses an inorganic sand-in-water multicolor paint and a preparation method thereof, wherein the disclosed inorganic sand-in-water multicolor paint is prepared by mixing a protective glue solution, a granulation base paint and a continuous phase, wherein the protective glue solution comprises 90-100 parts by mass of deionized water, 0.1-1 part by mass of an anti-settling agent and 1-10 parts by mass of protective glue powder; the granulation base paint comprises 25-35 parts of deionized water, 0.5-1.5 parts of cellulose ether, 1-10 parts of kaolin, 0.1-1 part of titanium dioxide, 10-30 parts of inorganic resin, 1-5 parts of protective rubber powder, 0.1-0.5 part of color paste and 30-50 parts of 80-120-mesh snowflake white; the continuous phase comprises 40-70 parts of inorganic resin, 30-50 parts of deionized water, 0.1-1 part of multifunctional additive and 0.5-1 part of thickening agent. Although the disclosed inorganic sand-in-water multicolor paint has excellent hardness, weather resistance, water resistance, alkali resistance and storage stability, the sand-in-water product has high construction cost.
CN107227111A discloses a novel sand-in-water paint and a preparation method thereof, wherein the disclosed sand-in-water paint is prepared from a component A, a component B and a component C, the component A comprises water, cellulose, a water-based auxiliary agent, a pigment filler, an elastic emulsion, a water-based fluorine-silicon emulsion, a modified synthetic sheet silicate and a composite thickening agent, the component B comprises water and the modified synthetic sheet silicate, and the component C comprises water, a film-forming auxiliary agent, an antifreezing agent, a preservative, a pH regulator, a fluorine-silicon emulsion and a composite thickening agent. Although the disclosed sand-in-water coating has the texture of imitation stone, the coating is formed by one-time spraying. But the water-coated sand coating has higher usage amount and higher cost in the construction process.
In summary, it is important to develop a texture paint having both texture and simple process in the application process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a texture coating and a preparation method and application thereof, in particular to a three-in-one functional coating for sand-in-water priming, a preparation method and application thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides a texture coating, which comprises the following components in parts by weight:
according to the invention, the silicone acrylic emulsion, the silica sol and the sand in a specific ratio are added into the formula, and the silicone acrylic emulsion, the silica sol and the sand have a synergistic effect, so that the texture coating has stone-like texture on the whole effect and has better weather resistance. The texture coating combines three products of putty, transparent primer and solid color primer into one product, and saves construction procedures.
The water is present in an amount of 7 to 12 parts by weight, for example 8 parts by weight, 9 parts by weight, 10 parts by weight, 11 parts by weight, and the like.
The weight portion of the silicone acrylic emulsion is 12-15 weight portions, such as 12 weight portions, 13 weight portions, 14 weight portions and the like.
The silica sol is present in an amount of 2 to 5 parts by weight, for example 3 parts by weight, 4 parts by weight, 5 parts by weight, etc.
The sand is present in an amount of 20 to 75 parts by weight, for example 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight, 50 parts by weight, 55 parts by weight, 60 parts by weight, 65 parts by weight, 70 parts by weight, etc.
The filler is present in an amount of 0.1 to 25.5 parts by weight, for example 0.5 parts by weight, 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 10 parts by weight, 15 parts by weight, 20 parts by weight, 25 parts by weight, and the like.
The weight parts of the auxiliary agent are 0.1 to 3.6 parts, such as 0.4 part, 0.8 part, 1.2 parts, 1.6 parts, 2.0 parts, 2.4 parts, 2.8 parts, 3.2 parts, etc.
Preferably, the sand comprises a first snowflake and/or a second snowflake.
Preferably, the particle size of the first snowflake white is 80-120 meshes, such as 80-85 meshes, 80-90 meshes, 95-105 meshes, 105-110 meshes, 115-120 meshes and the like. The snowflake white sold in the field is mixed by different particle sizes, and is not a single particle size, so that the particle size range is only specified in the invention.
Preferably, the particle size of the second snowflake is 100-200 meshes, such as 100-130 meshes, 100-140 meshes, 125-150 meshes, 135-160 meshes, 145-170 meshes, 115-180 meshes, 105-190 meshes, and the like.
Preferably, the particle size of the first snowflake white is 80-120 meshes, and the particle size of the second snowflake white is 100-200 meshes.
According to the invention, the two kinds of snowflake white with specific particle sizes are preferably compounded, the two kinds of snowflake white are compounded to provide the required texture well, and meanwhile, the surface effect is compact without large gaps, so that the natural texture effect of the imitation stone can be provided.
Preferably, the first snowflake white is added in an amount of 20 to 25 parts by weight, such as 21 parts by weight, 22 parts by weight, 23 parts by weight, 24 parts by weight, 25 parts by weight, and the like.
Preferably, the second snowflake white is added in an amount of 30-50 parts by weight, such as 32 parts by weight, 34 parts by weight, 36 parts by weight, 38 parts by weight, 40 parts by weight, 42 parts by weight, 44 parts by weight, 46 parts by weight, 48 parts by weight, and the like.
Preferably, the filler comprises any one of kaolin, heavy calcium, diatomaceous earth, titanium dioxide or bentonite, or a combination of at least two of these, with typical but non-limiting combinations including: a combination of kaolin and coarse whiting, a combination of kaolin, coarse whiting and diatomite, a combination of coarse whiting, diatomite, titanium dioxide and bentonite, a combination of kaolin, coarse whiting, diatomite, titanium dioxide and bentonite, and the like.
Preferably, the particle size of the kaolin is 1000-1500 meshes, such as 1050 meshes, 1100 meshes, 1150 meshes, 1200 meshes, 1250 meshes, 1300 meshes, 1350 meshes, 1400 meshes, 1450 meshes and the like, preferably 1250 meshes.
Preferably, the particle size of the heavy calcium carbonate is 200-500 meshes, such as 225 meshes, 250 meshes, 275 meshes, 300 meshes, 325 meshes, 350 meshes, 375 meshes, 400 meshes, 425 meshes, 450 meshes, 475 meshes and the like, preferably 325 meshes.
Preferably, the kaolin is added in an amount of 1 to 3 parts by weight, such as 1.2 parts by weight, 1.4 parts by weight, 1.6 parts by weight, 1.8 parts by weight, 2.0 parts by weight, 2.2 parts by weight, 2.4 parts by weight, 2.6 parts by weight, 2.8 parts by weight, and the like.
Preferably, the heavy calcium is added in an amount of 8 to 12 parts by weight, such as 8.5 parts by weight, 9 parts by weight, 9.5 parts by weight, 10 parts by weight, 10.5 parts by weight, 11 parts by weight, 11.5 parts by weight, and the like.
Preferably, the diatomaceous earth is added in an amount of 0.1 to 0.5 parts by weight, such as 0.2 parts by weight, 0.3 parts by weight, 0.4 parts by weight, and the like.
Preferably, the titanium dioxide is added in an amount of 2 to 5 parts by weight, such as 2.5 parts by weight, 3 parts by weight, 3.5 parts by weight, 4 parts by weight, 4.5 parts by weight, and the like.
Preferably, the bentonite is added in an amount of 2 to 5 parts by weight, such as 2.5 parts by weight, 3 parts by weight, 3.5 parts by weight, 4 parts by weight, 4.5 parts by weight, and the like.
The bentonite is special for the texture coating, can improve the construction smoothness of the texture coating, and can provide certain viscosity.
Preferably, the adjuvant comprises any one or a combination of at least two of a film forming adjuvant, an anti-settling agent, a dispersant, a wetting agent or a thickener, wherein typical but non-limiting combinations include: the combination of a film-forming aid and an anti-settling agent, the combination of a film-forming aid, an anti-settling agent and a dispersant, the combination of a film-forming aid, an anti-settling agent, a dispersant and a wetting agent, the combination of a film-forming aid, an anti-settling agent, a dispersant, a wetting agent and a thickening agent, and the like.
Preferably, the coalescent includes a dodecyl alcohol ester and/or a propylene glycol phenyl ether.
Preferably, the anti-settling agent comprises magnesium aluminum silicate.
The magnesium aluminum silicate provided by the invention can be used as an anti-settling agent to effectively provide the overall storage stability of texture coating products.
Preferably, the dispersant comprises an ammonium salt dispersant and/or a sodium salt dispersant.
Preferably, the wetting agent comprises a non-ionic wetting agent and/or an anionic wetting agent.
Preferably, the thickener comprises a polyurethane thickener and/or an alkali swelling thickener. The thickening agent is an alkali swelling thickening agent with unobvious post-thickening.
Preferably, the coalescing agent is added in an amount of 0.7 to 1.5 parts by weight, such as 0.8 parts by weight, 0.9 parts by weight, 1.0 parts by weight, 1.1 parts by weight, 1.2 parts by weight, 1.3 parts by weight, 1.4 parts by weight, and the like.
Preferably, the anti-settling agent is added in an amount of 0.2 to 0.8 parts by weight, such as 0.3 parts by weight, 0.4 parts by weight, 0.5 parts by weight, 0.6 parts by weight, 0.7 parts by weight, and the like.
The addition amount of the anti-settling agent is 0.2-0.8 part by weight, the storage of the product is unstable due to too small addition amount of the anti-settling agent, and the construction performance of the whole product is affected due to too much addition amount of the anti-settling agent.
Preferably, the dispersant is added in an amount of 0.2 to 0.5 parts by weight, such as 0.3 parts by weight, 0.4 parts by weight, and the like.
Preferably, the wetting agent is added in an amount of 0.1 to 0.3 parts by weight, such as 0.1 parts by weight, 0.2 parts by weight, and the like.
Preferably, the thickener is added in an amount of 0.2 to 0.5 parts by weight, such as 0.3 parts by weight, 0.4 parts by weight, and the like.
As a preferable technical scheme, the texture paint comprises the following components in parts by weight:
in a second aspect, the present invention provides a method of preparing a textured coating according to the first aspect, the method comprising: dispersing water, silicone-acrylate emulsion, silica sol, sand, a filler and an auxiliary agent according to parts by weight, mixing and dissolving to obtain the texture coating.
Preferably, the preparation method comprises the following steps:
(1) dispersing and dissolving the anti-settling agent in water for the first time;
(2) adding bentonite into the solution obtained in the step (1) for second dispersion;
(3) sequentially adding kaolin, coarse whiting, diatomite, titanium dioxide, a dispersing agent and a wetting agent into the solution obtained in the step (2) for third dispersion;
(4) and (3) sequentially adding the silicone-acrylic emulsion, the film-forming aid, the first snowflake white, the second snowflake white, the silica sol and the thickening agent into the solution obtained in the step (3), and dispersing for the fourth time to obtain the texture coating.
Preferably, the first dispersing, the second dispersing, the third dispersing and the fourth dispersing in the steps (1) to (4) are all performed in a dispersing machine.
Preferably, the first dispersing is performed at a speed of 300-500 rpm, such as 320 rpm, 350 rpm, 380 rpm, 400 rpm, 420 rpm, 450 rpm, 475 rpm, etc.
Preferably, the step (1) specifically comprises: adding 7-12 parts by weight of water into a dispersion machine, adjusting the rotating speed to 300-500 r/min, and adding 0.2-0.8 part by weight of anti-settling agent for first dispersion and dissolution.
Preferably, the step (2) further comprises the step of rotating the high dispersing machine at 400-600 rpm before adding the bentonite, such as 425 rpm, 450 rpm, 475 rpm, 500 rpm, 525 rpm, 550 rpm, 575 rpm and the like.
Preferably, the second dispersion is performed at a speed of 800-1500 rpm, such as 900 rpm, 1000 rpm, 1100 rpm, 1200 rpm, 1300 rpm, 1400 rpm, etc.
Preferably, the time for the second dispersion is 15 to 20 minutes, such as 16 minutes, 17 minutes, 18 minutes, 19 minutes, and the like.
Preferably, the step (2) specifically comprises: increasing the rotation speed of the dispersion machine to 400-600 r/min, adding 2-5 parts by weight of bentonite into the solution obtained in the step (1), and increasing the rotation speed to 800-1500 r/min for secondary dispersion for 15-20 min.
Preferably, the third dispersion is performed at a rotation speed of 1500-.
Preferably, the time for the third dispersion is 20 to 30 minutes, such as 21 minutes, 22 minutes, 23 minutes, 24 minutes, 25 minutes, 26 minutes, 27 minutes, 28 minutes, 29 minutes, and the like.
Preferably, the step (3) specifically comprises: sequentially adding 1-3 parts by weight of kaolin, 8-12 parts by weight of heavy calcium, 0.1-0.5 part by weight of diatomite, 2-5 parts by weight of titanium dioxide, 0.2-0.5 part by weight of dispersing agent and 0.1-0.3 part by weight of wetting agent into the solution obtained in the step (2) according to parts by weight, adjusting the rotating speed to 1500 plus 2500 revolutions per minute, and carrying out third dispersion for 20-30 minutes.
Preferably, the step (4) further comprises adjusting the rotation speed of the dispersing machine to 800-1500 rpm, such as 900 rpm, 1000 rpm, 1100 rpm, 1200 rpm, 1300 rpm, 1400 rpm and the like, before adding the silicone-acrylic emulsion.
Preferably, the fourth dispersion is performed at a speed of 800-1500 rpm, 900 rpm, 1000 rpm, 1100 rpm, 1200 rpm, 1300 rpm, 1400 rpm, etc.
Preferably, the fourth dispersion time is 10-15 minutes, such as 16 minutes, 17 minutes, 18 minutes, 19 minutes, and the like.
Preferably, the step (4) specifically comprises: and (3) regulating the rotating speed of the dispersion machine to be 800-1500 rpm, sequentially adding 12-25 parts by weight of silicone-acrylic emulsion, 0.7-1.5 parts by weight of film-forming aid, 30-50 parts by weight of first snowflake white, 20-25 parts by weight of second snowflake white, 2-5 parts by weight of silica sol and 0.2-0.5 part by weight of thickening agent into the solution obtained in the step (3), and dispersing for 10-15 minutes for the fourth time to obtain the texture coating.
As a preferred technical scheme, the preparation method comprises the following steps:
(1) adding 7-12 parts by weight of water into a dispersion machine, adjusting the rotating speed of the dispersion machine to 300-500 rpm, and adding 0.2-0.8 part by weight of an anti-settling agent for primary dispersion and dissolution;
(2) increasing the rotation speed to 400-1500 rpm, adding 2-5 parts by weight of bentonite into the solution obtained in the step (1), increasing the rotation speed to 800-1500 rpm, and performing secondary dispersion for 15-20 minutes;
(3) sequentially adding 1-3 parts by weight of kaolin, 8-12 parts by weight of heavy calcium, 0.1-0.5 part by weight of diatomite, 2-5 parts by weight of titanium dioxide, 0.2-0.5 part by weight of dispersing agent and 0.1-0.3 part by weight of wetting agent into the solution obtained in the step (2) according to parts by weight, adjusting the rotating speed to 1500-;
(4) and (3) regulating the rotation speed to be 800-1500 rpm, sequentially adding 12-25 parts by weight of silicone-acrylic emulsion, 0.7-1.5 parts by weight of film-forming aid, 30-50 parts by weight of first snowflake white, 20-25 parts by weight of second snowflake white, 2-5 parts by weight of silica sol and 0.2-0.5 part by weight of thickening agent into the solution obtained in the step (3), and dispersing for 10-15 minutes for the fourth time to obtain the texture coating.
In a third aspect, the present invention provides a use of a texture coating as described in the first aspect in a building material.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the silicone acrylic emulsion, the silica sol and the sand in a specific ratio are added into the formula, and the silicone acrylic emulsion, the silica sol and the sand have a synergistic effect, so that the texture coating has stone-like texture on the whole effect and has better weather resistance. The texture coating combines three products of putty, transparent primer and solid color primer into one product, and saves construction procedures. The texture coating disclosed by the invention has higher initial strength and better stone-like texture, and the initial strength is higher through the synergistic effect among the silicone-acrylic emulsion, the silica sol and the sand in a specific ratio.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments. It should be understood by those skilled in the art that the examples are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Examples 1 to 11 and comparative examples 1 to 6
The texture paint comprises the following components in parts by weight as shown in Table 1:
TABLE 1
In the above table, the silicone-acrylic emulsion is available from the Dow chemical company, Inc. (Dow); silica sol was purchased from Beijing national union Chemicals, Inc.; the diatomite is purchased from a constant mineral processing factory; titanium dioxide was purchased from Henan Bailey union chemical Co., Ltd; bentonite was purchased from Ashland group; the film-forming additive is dodecyl alcohol ester and is purchased from Istmann chemical company; the anti-settling agent is magnesium aluminum silicate and is purchased from Basff company; the dispersant is ammonium salt dispersant which is purchased from Dow; the wetting agent is an anionic wetting agent and is purchased from Dow; the thickener is an alkali swelling thickener, available from dow.
The texture coating provided by the embodiment 1 is prepared by the following steps:
(1) adding the mixture into a dispersion machine, regulating the rotating speed to 400 revolutions per minute, adding an anti-settling agent for first dispersion and dissolution;
(2) increasing the rotating speed to 500 revolutions per minute, adding bentonite, increasing the rotating speed to 1000 revolutions per minute, and performing secondary dispersion for 18 minutes;
(3) sequentially adding kaolin, coarse whiting, diatomite, titanium dioxide, a dispersing agent and a wetting agent into the solution obtained in the step (2) according to parts by weight, adjusting the rotating speed to 2000 rpm, and performing third dispersion for 25 minutes;
(4) and (4) regulating the rotating speed to 1000 revolutions per minute, sequentially adding the silicone-acrylic emulsion, the film-forming aid, the first snowflake white, the second snowflake white, the silica sol and the thickening agent into the solution obtained in the step (3), and dispersing for 15 minutes for the fourth time to obtain the texture coating.
A textured coating provided in example 2, the method of making comprising the steps of:
(1) adding water into a dispersion machine, adjusting the rotating speed to 300 r/min, adding an anti-settling agent for first dispersion and dissolution;
(2) increasing the rotating speed to 400 revolutions per minute, adding bentonite, increasing the rotating speed to 800 revolutions per minute, and performing secondary dispersion for 15 minutes;
(3) sequentially adding kaolin, coarse whiting, diatomite, titanium dioxide, a dispersing agent and a wetting agent into the solution obtained in the step (2) according to parts by weight, adjusting the rotating speed to be 1500 rpm, and performing third dispersion for 20 minutes;
(4) and (3) regulating the rotating speed to 800 revolutions per minute, sequentially adding the silicone-acrylic emulsion, the film-forming aid, the first snowflake white, the second snowflake white, the silica sol and the thickening agent into the solution obtained in the step (3), and dispersing for 10 minutes for the fourth time to obtain the texture coating.
A textured coating provided in example 3, the method of making comprising the steps of:
(1) adding water into a dispersion machine, regulating the rotating speed to 500 r/min, adding an anti-settling agent for first dispersion and dissolution;
(2) increasing the rotating speed to 600 revolutions per minute, adding bentonite, increasing the rotating speed to 1500 revolutions per minute, and performing secondary dispersion for 20 minutes;
(3) sequentially adding kaolin, coarse whiting, diatomite, titanium dioxide, a dispersing agent and a wetting agent into the solution obtained in the step (2) according to parts by weight, adjusting the rotating speed to 2500 revolutions per minute, and performing third dispersion for 30 minutes;
(4) and (4) regulating the rotating speed to 1500 revolutions per minute, sequentially adding the silicone-acrylic emulsion, the film forming aid, the first snowflake white, the second snowflake white, the silica sol and the thickening agent into the solution obtained in the step (3), and dispersing for 15 minutes for the fourth time to obtain the texture coating.
The texture coating preparation methods of examples 4-11 and comparative examples 1-6 are different from example 1 only in the addition amount or specific type of each component, and the details are shown in Table 1.
Performance testing
The textured coatings obtained in examples 1 to 11 and comparative examples 1 to 6 were coated on asbestos-free fiber cement boards in standard amounts of JG/T24-2018, and then subjected to the following tests:
(1) initial strength of the product: the initial strength of the product is classified as follows: class I, II and III, with class I being the best and class III the worst.
(2) Testing the texture of the imitation stone: the texture was graded by visual observation as follows: class I, II and III, with class I being the best and class III the worst.
The test results are summarized in table 2.
TABLE 2
As can be seen from the analysis of the data in Table 2, the texture coating disclosed by the invention has higher initial strength and better stone-like texture.
As can be seen from the analysis of examples 1, 4-5 and 1-6, the texture coating obtained by comparative examples 1-6 is inferior to that of examples 1, 4-5, because the invention obtains higher weather resistance and excellent stone-like texture on the premise of smaller usage amount through the synergistic effect among the silicone-acrylic emulsion, the silica sol and the sand in specific proportion, and the addition amount of any one of the components is out of the range of the invention, which can deteriorate the effect.
As is clear from the analysis of examples 1 and 6 to 9, the coating properties of the texture coatings obtained in examples 8 to 9 were inferior to those of examples 1 and 6 to 7, and it was confirmed that the texture coatings obtained with the addition amount of the anti-settling agent in the range of 0.2 to 0.8 part by weight had better properties.
The analysis of examples 10-11 and example 1 shows that the texture coating performance obtained by the examples 10-11 is inferior to that obtained by the example 1, and the texture coating performance obtained by compounding the snowflake white with sand with a specific particle size is proved to be better.
The present invention is illustrated in detail by the examples described above, but the present invention is not limited to the details described above, i.e., it is not intended that the present invention be implemented by relying on the details described above. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (10)
1. The texture coating is characterized by comprising the following components in parts by weight:
2. a textured coating as claimed in claim 1, wherein the sand comprises a first snow white and/or a second snow white;
preferably, the particle size of the first snowflake white is 80-120 meshes;
preferably, the particle size of the second snowflake white is 100-200 meshes;
preferably, the adding amount of the first snowflake white is 20-25 parts by weight;
preferably, the second snowflake white is added in an amount of 30-50 parts by weight.
3. A textured coating as claimed in claim 1 or claim 2, wherein the filler comprises any one or a combination of at least two of kaolin, coarse whiting, diatomaceous earth, titanium dioxide or bentonite;
preferably, the particle size of the kaolin is 1000-1500 meshes, preferably 1250 meshes;
preferably, the particle size of the heavy calcium is 200-500 meshes, preferably 325 meshes;
preferably, the kaolin is added in an amount of 1 to 3 parts by weight;
preferably, the added amount of the heavy calcium is 8 to 12 parts by weight;
preferably, the addition amount of the diatomite is 0.1-0.5 part by weight;
preferably, the addition amount of the titanium dioxide is 2-5 parts by weight;
preferably, the bentonite is added in an amount of 2 to 5 parts by weight.
4. A textured coating as claimed in any one of claims 1 to 3, wherein said adjuvants comprise any one or a combination of at least two of film forming adjuvants, anti-settling agents, dispersing agents, wetting agents or thickening agents;
preferably, the coalescent comprises a dodecyl alcohol ester and/or a propylene glycol phenyl ether;
preferably, the anti-settling agent comprises magnesium aluminum silicate;
preferably, the dispersant comprises an ammonium salt dispersant and/or a sodium salt dispersant;
preferably, the wetting agent comprises a non-ionic wetting agent and/or an anionic wetting agent;
preferably, the thickener comprises a polyurethane thickener and/or an alkali swelling thickener;
preferably, the addition amount of the film-forming aid is 0.7-1.5 parts by weight;
preferably, the addition amount of the anti-settling agent is 0.2-0.8 part by weight;
preferably, the addition amount of the dispersant is 0.2 to 0.5 part by weight;
preferably, the addition amount of the wetting agent is 0.1 to 0.3 part by weight;
preferably, the thickener is added in an amount of 0.2 to 0.5 parts by weight.
5. A texture paint as claimed in any one of claims 1 to 4 wherein the texture paint comprises the following components in parts by weight:
6. a method of preparing a textured coating as claimed in any one of claims 1 to 5, wherein the method comprises: dispersing water, silicone-acrylate emulsion, silica sol, sand, a filler and an auxiliary agent according to parts by weight, mixing and dissolving to obtain the texture coating.
7. The preparation method according to claim 6, characterized in that the preparation method specifically comprises the steps of:
(1) dispersing and dissolving the anti-settling agent in water for the first time;
(2) adding bentonite into the solution obtained in the step (1) for second dispersion;
(3) sequentially adding kaolin, coarse whiting, diatomite, titanium dioxide, a dispersing agent and a wetting agent into the solution obtained in the step (2) for third dispersion;
(4) and (3) sequentially adding the silicone-acrylic emulsion, the film-forming aid, the first snowflake white, the second snowflake white, the silica sol and the thickening agent into the solution obtained in the step (3), and dispersing for the fourth time to obtain the texture coating.
8. The production method according to claim 7, wherein the first dispersion, the second dispersion, the third dispersion and the fourth dispersion in steps (1) to (4) are all carried out in a disperser;
preferably, the rotating speed of the first dispersion is 300-500 rpm;
preferably, the step (1) specifically comprises: adding 7-12 parts by weight of water into a dispersion machine, adjusting the rotating speed to 300-500 r/min, and adding 0.2-0.8 part by weight of anti-settling agent for first dispersion and dissolution;
preferably, the step (2) further comprises that the rotation speed of the high dispersing machine is 400-600 rpm before the bentonite is added;
preferably, the rotation speed of the second dispersion is 800-1500 rpm;
preferably, the time of the second dispersion is 15 to 20 minutes;
preferably, the step (2) specifically comprises: increasing the rotation speed of the dispersion machine to 400-;
preferably, the rotating speed of the third dispersion is 1500-2500 rpm;
preferably, the time for the third dispersion is 20 to 30 minutes;
preferably, the step (3) specifically comprises: sequentially adding 1-3 parts by weight of kaolin, 8-12 parts by weight of heavy calcium, 0.1-0.5 part by weight of diatomite, 2-5 parts by weight of titanium dioxide, 0.2-0.5 part by weight of dispersing agent and 0.1-0.3 part by weight of wetting agent into the solution obtained in the step (2) according to parts by weight, adjusting the rotating speed to 1500-;
preferably, the step (4) further comprises adjusting the rotation speed of the dispersing machine to 800-;
preferably, the rotating speed of the fourth dispersion is 800-1500 rpm;
preferably, the time for the fourth dispersion is 10 to 15 minutes;
preferably, the step (4) specifically comprises: and (3) regulating the rotating speed of the dispersion machine to be 800-1500 rpm, sequentially adding 12-25 parts by weight of silicone-acrylic emulsion, 0.7-1.5 parts by weight of film-forming aid, 30-50 parts by weight of first snowflake white, 20-25 parts by weight of second snowflake white, 2-5 parts by weight of silica sol and 0.2-0.5 part by weight of thickening agent into the solution obtained in the step (3), and dispersing for 10-15 minutes for the fourth time to obtain the texture coating.
9. The method according to any one of claims 6 to 8, characterized by comprising the steps of:
(1) adding 7-12 parts by weight of water into a dispersion machine, adjusting the rotating speed of the dispersion machine to 300-500 rpm, and adding 0.2-0.8 part by weight of an anti-settling agent for primary dispersion and dissolution;
(2) increasing the rotation speed to 400-1500 rpm, adding 2-5 parts by weight of bentonite into the solution obtained in the step (1), increasing the rotation speed to 800-1500 rpm, and performing secondary dispersion for 15-20 minutes;
(3) sequentially adding 1-3 parts by weight of kaolin, 8-12 parts by weight of heavy calcium, 0.1-0.5 part by weight of diatomite, 2-5 parts by weight of titanium dioxide, 0.2-0.5 part by weight of dispersing agent and 0.1-0.3 part by weight of wetting agent into the solution obtained in the step (2) according to parts by weight, adjusting the rotating speed to 1500-;
(4) and (3) regulating the rotation speed to be 800-1500 rpm, sequentially adding 12-25 parts by weight of silicone-acrylic emulsion, 0.7-1.5 parts by weight of film-forming aid, 30-50 parts by weight of first snowflake white, 20-25 parts by weight of second snowflake white, 2-5 parts by weight of silica sol and 0.2-0.5 part by weight of thickening agent into the solution obtained in the step (3), and dispersing for 10-15 minutes for the fourth time to obtain the texture coating.
10. Use of a texture coating as claimed in any one of claims 1 to 5 in a building material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011380794.0A CN112341889A (en) | 2020-11-30 | 2020-11-30 | Texture coating and preparation method and application thereof |
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| CN202011380794.0A CN112341889A (en) | 2020-11-30 | 2020-11-30 | Texture coating and preparation method and application thereof |
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| CN114874665A (en) * | 2022-04-29 | 2022-08-09 | 广东美涂士建材股份有限公司 | Preparation and application of roller-coating type artistic coating |
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Application publication date: 20210209 |