CN113088147A - Bi-component primer-free exterior wall paint and preparation and application methods thereof - Google Patents
Bi-component primer-free exterior wall paint and preparation and application methods thereof Download PDFInfo
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- CN113088147A CN113088147A CN202110373751.8A CN202110373751A CN113088147A CN 113088147 A CN113088147 A CN 113088147A CN 202110373751 A CN202110373751 A CN 202110373751A CN 113088147 A CN113088147 A CN 113088147A
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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
- C09D133/00—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 at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/65—Additives macromolecular
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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
Abstract
The invention relates to the technical field of coatings, and discloses a bi-component priming-free exterior wall paint and a preparation and application method thereof, wherein the bi-component priming-free exterior wall paint comprises a component A and a component B, wherein the component A comprises the following components in percentage by mass: 10% -12.2% of water; 1.1 to 1.2 percent of propylene glycol; 1.2 to 1.5 percent of dispersant; 0.1% -0.15% of anionic surfactant; 0.4 to 0.6 percent of defoaming agent; 0.18 to 0.35 percent of cellulose; 0.2 to 0.25 percent of pH regulator; 10% -11% of titanium dioxide; 68% -71% of functional emulsion; 0.2 to 0.3 percent of mildew preventive; 4.9 to 5.1 percent of film-forming additive; 0.2 to 0.25 percent of preservative; the component B is integrated mortar, and the mass ratio of the component A to the component B is (A: B) 1, (0.9-1.1). The two-component bottomless exterior wall paint disclosed by the invention has excellent adsorption property and self-sealing property, and can effectively inhibit the precipitation and permeation of water-soluble salt and alkali of an alkaline wall, so that the prepared wall paint has excellent alkali resistance, adsorption property and reinforcement property, has the functions of primer and finish paint, and effectively solves the problems of multiple coating processes and low efficiency of the traditional wall surface.
Description
Technical Field
The invention belongs to the technical field of coatings for architectural decoration, and particularly relates to a bi-component primer-free exterior wall paint and a preparation and application method thereof.
Background
The building wall surface base material is mostly a cement mortar or concrete surface and is characterized by multiple gaps, wherein the porous structure has strong water absorption and is easy to cause smearing and wrinkling in the wall surface coating process; the basic material has strong alkalinity, which easily causes the chemical degradation of the organic material of the coating, accelerates the aging of the paint film, causes the problems of weak adsorption capacity between the coating and the basic material after coating, poor film forming effect, poor film forming compactness, poor wear resistance and the like, and easily causes the problems of falling, aging, cracking and the like.
Traditional wall coating needs batch putty surface, is the priming paint, and through the infiltration effect of priming paint, can form certain seal effect to the substrate, avoids substrate alkali and water-soluble salt infiltration outer wall paint film, strengthens substrate adhesive force simultaneously, improves the application effect. However, most primers have a certain alkali resistance, but have poor blocking effect and cannot effectively prevent alkali reversion. In addition, when the primer and the finish paint are selected, necessary matching tests are required, so that not only is good adhesion between the primer and the finish paint coating required, but also the problems of primer biting, bubbles and the like of the finish paint coating are ensured, and the process is complex, the maintenance time is long, and manpower and materials are consumed.
Disclosure of Invention
Aiming at the existing problems, the invention aims to provide a two-component primer-free exterior wall paint and a preparation and application method thereof, and the prepared exterior wall paint has excellent alkali resistance, adsorption performance and reinforcement performance and has the functions of a primer and a finish paint by optimizing component proportion and a preparation process and improving the adsorption performance and self-sealing performance of paint. In addition, the double-component formula design has long storage time, is convenient for the color mixing of paint and improves the decorative effect of the wall paint.
In order to solve the technical problems, the invention adopts the following technical scheme to realize:
the two-component priming-free exterior wall paint comprises a component A and a component B, wherein the component A comprises the following components in percentage by mass: 10% -12.2% of water; 1.1 to 1.2 percent of propylene glycol; 1.2 to 1.5 percent of dispersant; 0.1% -0.15% of anionic surfactant; 0.4 to 0.6 percent of defoaming agent; 0.18 to 0.35 percent of cellulose; 0.2 to 0.25 percent of pH regulator; 10% -11% of titanium dioxide; 68% -71% of functional emulsion; 0.2 to 0.3 percent of mildew preventive; 4.9 to 5.1 percent of film-forming additive; 0.2 to 0.25 percent of preservative; the component B is integrated mortar, and the mass percentages of the component A and the component B are as follows: b is 1, (0.9-1.1).
Preferably, the propylene glycol is macroreticular (colorless transparent liquid with purity more than or equal to 99.7 percent, moisture less than or equal to 0.08 percent, boiling range of 184-.
Preferably, the dispersant is an ammonium salt copolymer dispersant D-26 of Kyowa Kay chemical Co., Ltd, and the D-26 dispersant is a hydrophobically modified acrylic acid ammonium salt copolymer; the dispersing agent has good dispersing effect, excellent water resistance, excellent formula adaptability and stability, and is mainly used for improving the dispersing performance of a formula system, so that the formula system has excellent early water resistance, early scrubbing resistance, rain mark resistance, color expression and storage stability; the dispersing agent does not contain formaldehyde and APEO, and is safe and environment-friendly.
Preferably, the anionic surfactant is a Dow wetting agent BD-109, and the BD-109 anionic surfactant is an alcohol surfactant which has an excellent wetting effect and is mainly used for improving the water retention, wetting and permeability of a formula system. The anionic surfactant does not contain APEO, and has the advantages of biodegradation, low water biotoxicity, good operability and the like.
Preferably, the defoamer is a basf corning defoamer, foamstar 2410AC, foamstar 2410AC defoamer, has very rapid bubble breaking capability, is very effective for breaking micro bubbles, and permeates into a foam system in the form of particles to form a very thin double film layer, so that invasion is further diffused, the surface tension of the foam is locally reduced, the film wall is thinned, and the film layer with high surrounding surface tension is strongly pulled, and finally bubbles are broken, wherein the bubbles play a role as the defoamer in a formula system.
Preferably, the cellulose is the ashland cellulose Natrosol250HBR, and the Natrosol250HBR cellulose is hydroxyethyl cellulose, has high thickening efficiency, so that the formula system has excellent sagging property, anti-settling property and post-precipitation redispersibility, and plays a role in controlling and enhancing the rheological property of the formula system in the formula system.
Preferably, the pH regulator is a Dow AMP-95pH regulator, and the AMP-95pH regulator plays a role in pH stabilization in a formula system, regulates the pH value of the formula system, can reduce rust, is beneficial to manufacturing low-odor paint, can keep stable for a long time under alkaline conditions, enables the formula system to exert optimal dispersion effect and has excellent color retention; the performance of the thickener is improved, the viscosity can be improved, the dosage of the cellulose thickener in a formula system is reduced, and the cost of the coating is reduced. The AMP-95pH regulator has certain influence on the storage stability, anti-putrefaction, anti-corrosion, viscosity and performance of the coating.
Preferably, the titanium dioxide is Guangdong Yunfu rutile titanium dioxide 668, and the titanium dioxide 668 provides a covering rate in a formula system, improves filling fullness, increases the thickness of a coating film, improves mechanical strength, wear resistance and the like, and simultaneously improves whiteness, color retention, durability, thermal stability, light stability and physical and chemical stability of the formula system.
The film-forming aid is an Iseman film-forming aid, namely Texanol (Texanol, the purity is more than 98.5%, the acidity is less than 0.05, the specific gravity is 0.945-0.955g/ml, the water content is less than 0.1%, a clear and clean film-forming aid liquid with the refractive index of 1.4411-1.4433 can help a film-forming object to form a continuous film at the temperature of more than 5 ℃), and the Texanol film-forming aid is strong in dissolving capacity, excellent in hydrolytic stability, low in freezing point (-50 ℃), easy to mix into emulsion in a low-temperature environment, high in boiling point (253) and 283 ℃), can improve the boiling point of a formula system, improve the stability of the formula system, provide free volume, improve the mutual diffusion and permeation providing conditions of the formula system and enable the formula system to have a good film-forming effect; the mildew preventive is an ACTICIDE MKX mildew preventive and an ACTICIDE MKX mildew preventive of Turkey, is free of formaldehyde, does not contain organic solvent/VOC, and has sterilization and anticorrosion effects. The preservative is a Rohm and Haas preservative ROCIMA562 which can improve the rapid effect on broad-spectrum microorganisms and provide more stable long-term protection for a finished product of a formula system; the thickener is Rohm and Haas thickener RM-2020 and is used for increasing the consistency of a formula system, establishing the high shear viscosity of the formula system and changing the flow leveling state.
Preferably, the functional emulsion is Dow Bai calendar acrylic polymer emulsion AC-8188, AC-8188 (the solid content is 51 +/-1.0%, the pH value is 7.0-9.0, the MFFT (minimum film forming temperature) is about 20 ℃, and the viscosity is milky liquid with high pigment and filler bearing capacity of 1-1500 MPa), has excellent adhesive force, water resistance, water-whitening resistance effect and low water permeability, is a film forming material, and can provide good adhesive force; the water (common tap water can be used) is used as a dispersion of the dispersion system composition in the formula system, and the viscosity of the formula system is adjusted during beating.
Preferably, the integrated mortar is waterproof and decorative integrated mortar of Guangzhou Kemeji new material company Limited, belongs to silicate mortar, has strong adhesive force and reinforcing performance, has good adhesive force with concrete and mortar base surfaces, can form a compact and firm waterproof coating with good durability, and is used as a component B in a formula system.
The preparation method of the double-component bottomless exterior wall paint comprises the following steps in sequence:
(1) under the condition that the stirring speed is 600-1000 r/min, 10-12.2% of water, 1.1-1.2% of propylene glycol, 1.2-1.5% of dispersing agent, 0.1-0.15% of anionic surfactant, 0.4-0.6% of defoaming agent, 0.18-0.35% of cellulose and 0.2-0.25% of pH regulator are put into a production cylinder in sequence, and stirred for 5-15 min;
(2) increasing the stirring speed to 1500-1800 rpm, adding 10-11% titanium dioxide, stirring for 30-45 minutes, and detecting the scraping fineness of the slurry until the scraping fineness is less than or equal to 50 micrometers;
(3) reducing the stirring speed to 600-1000 revolutions per minute, sequentially adding 68-71 percent of functional emulsion, 4.9-5.1 percent of film-forming assistant, 0.2-0.25 percent of preservative and 0.2-0.3 percent of mildew preventive, and stirring for 5-15 minutes to obtain the bottom-free exterior wall paint of the component A;
(4) when in use, the weight ratio of A to B is 1: (0.9-1.1), and uniformly mixing to obtain the double-component bottomless exterior wall paint.
The invention also provides an application method of the double-component bottomless exterior wall paint, which comprises the following applicable steps according to the wall surface characteristics: when in use, a proper amount of the component A is uniformly coated on the surface of a wall, and then the component A is mixed with the component B according to the mass ratio of (A: B) to (1): (0.9-1.1), uniformly coating the component B; or when in use, the weight ratio of A to B is 1: (0.9-1.1), taking a proper amount of the component A and the component B, mixing, and uniformly coating on the surface of a wall.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the compound components are selected preferably, a multi-factor experimental design method is adopted, orthogonal experimental design is adopted to determine the components and the mass ratio thereof, the developed double-component bottomless exterior wall paint has excellent adsorption property and self-sealing property, and the precipitation and permeation of water-soluble salt and alkali of an alkaline wall are effectively inhibited, so that the prepared wall paint has excellent alkali resistance, adsorption property and reinforcement property, has the functions of primer and finish paint, and effectively solves the problems of more processes and low efficiency of the traditional wall coating. In addition, the formulation design of the two components reduces possible chemical reactions among the components during storage and effectively prolongs the storage time.
Detailed Description
The present invention will be described in detail with reference to specific examples.
The specific implementation mode is as follows:
the double-component bottom-free exterior wall paint is prepared from the following components in parts by mass: wherein the component A comprises the following components in percentage by mass: 10% -12.2% of water; 1.1 to 1.2 percent of propylene glycol; 1.2 to 1.5 percent of dispersant; 0.1% -0.15% of anionic surfactant; 0.4 to 0.6 percent of defoaming agent; 0.18 to 0.35 percent of cellulose; 0.2 to 0.25 percent of pH regulator; 10% -11% of titanium dioxide; 68% -71% of functional emulsion; 0.2 to 0.3 percent of mildew preventive; 4.9 to 5.1 percent of film-forming additive; 0.2 to 0.25 percent of preservative; the component B is integrated mortar, and the mass percentages of the component A and the component B are as follows: a: b is 1, (0.9-1.1).
A preparation method of a two-component bottom-free exterior wall paint comprises the following steps of sequentially carrying out:
(1) under the condition that the stirring speed is 600-1000 r/min, 10-12.2% of water, 1.1-1.2% of propylene glycol, 1.2-1.5% of dispersing agent, 0.1-0.15% of anionic surfactant, 0.4-0.6% of defoaming agent, 0.18-0.35% of cellulose and 0.2-0.25% of pH regulator are put into a production cylinder in sequence, and stirred for 5-15 min;
(2) increasing the stirring speed to 1500-1800 rpm, adding 10-11% titanium dioxide, stirring for 30-45 minutes, and detecting the scraping fineness of the slurry until the scraping fineness is less than or equal to 50 micrometers;
(3) reducing the stirring speed to 600-1000 revolutions per minute, sequentially adding 68-71 percent of functional emulsion, 4.9-5.1 percent of film-forming assistant, 0.2-0.25 percent of preservative and 0.2-0.3 percent of mildew preventive, and stirring for 5-15 minutes to obtain the bottom-free exterior wall paint of the component A;
(4) when in use, the component B integrated mortar is prepared by mixing the following components in a mass ratio of (A: B) to (1: (0.9-1.1), and uniformly mixing to obtain the double-component bottomless exterior wall paint.
A method for applying a two-component bottomless exterior wall paint comprises the steps of uniformly coating a proper amount of component A on the surface of a wall when in use, and then uniformly coating the component A and the component B according to the mass ratio of (A: B) to (1: (0.9-1.1), uniformly coating the component B; or when in use, the weight ratio of A to B is 1: (0.9-1.1), taking a proper amount of the component A and the component B, mixing, and uniformly coating on the surface of a wall.
In the components, propylene glycol adopts Hongkuan propylene glycol, the dispersant is ammonium salt copolymer dispersant D-26 of Kyowa Kaiyaku chemical industry Co., Ltd, an anionic surfactant adopts American Dow wetting agent BD-109, a defoamer adopts Pasteur corning defoamer FoamStarST2410AC, cellulose adopts Asia-Laura cellulose Natrosol250HBR, a pH regulator adopts Dow AMP-95pH regulator, titanium pigment adopts Guangdong Yunfo rutile 668, integrated mortar is waterproof and decorative integrated mortar of Kyowa Kaiyaku titanium pigment Co., Ltd, a film forming aid adopts Ismann film forming aid Texanol, a mildew preventive adopts England Torrer mildew preventive ICIDE MKX, a preservative adopts Rohm Haas preservative ROCA IMA562, a thickener adopts Rohm-2020 thickener RM-2020, a functional emulsion adopts Dow Jolmor acrylic polymer emulsion AC-8188, and each component can also adopt other similar products.
The invention discloses waterproof and decorative integrated mortar (comprising the following components, by mass, 42.5% of cement, 51.4% of fine sand (120 meshes), 5% of triple superphosphate (325 meshes), 10% of fly ash, 0.3% of wood fiber, 0.25% of a water repellent, 0.25% of hydroxypropyl cellulose, 2.5% of dispersible latex powder, 0.2% of polypropylene fiber and 0.1% of a thixotropic wetting agent) adopted by Guangzhou Kemeji new material company Limited, belongs to silicate series mortar, has good adhesive force with concrete and a mortar base surface, and can form a compact and firm waterproof coating with good durability. The alkali-resistant and bottom-free wall paint with strong adhesive force and reinforcing performance is developed by compounding the components, so that the alkali-returning problem of the integrated mortar when used alone is solved, and the cost of the alkali-resistant and bottom-free wall paint has greater advantage than that of like products in the industry.
Detailed description of the preferred embodiment 1
The double-component bottom-free exterior wall paint comprises a component A and a component B, wherein the component A is prepared from the following components in parts by mass: 11.1% of water, 1.2% of propylene glycol, 1.2% of dispersing agent, 0.1% of anionic surfactant, 0.5% of defoaming agent, 0.25% of cellulose, 0.2% of pH regulator, 10% of titanium dioxide, 70% of functional emulsion, 0.3% of mildew preventive, 5% of film-forming assistant and 0.2% of preservative; the component B is integrated mortar, and the mass percentages of the component A and the component B are as follows: a: and B is 1: 0.9.
A preparation method of a bi-component bottomless exterior wall paint comprises the following steps in sequence:
(1) under the condition that the stirring speed is 800 revolutions per minute, sequentially putting 11.1 percent of water, 1.2 percent of propylene glycol, 1.2 percent of dispersing agent, 0.1 percent of anionic surfactant, 0.5 percent of defoaming agent, 0.25 percent of cellulose and 0.2 percent of pH regulator into a production cylinder, and stirring for 7 minutes;
(2) increasing the stirring speed to 1500 rpm, adding 10% titanium dioxide, stirring for 35 minutes, and detecting the scraping fineness of the slurry until the scraping fineness is less than or equal to 50 micrometers;
(3) reducing the stirring speed to 900 revolutions per minute, sequentially adding 70 percent of functional emulsion, 5 percent of film forming additive, 0.2 percent of preservative and 0.3 percent of mildew preventive, and stirring for 15 minutes to obtain the bottom-free exterior wall paint of the component A;
(4) when in use, the component B integrated mortar is prepared by mixing the following components in a mass ratio of (A: B) to (1: 0.9, and evenly mixing to obtain the double-component bottom-free exterior wall paint.
An application method of a two-component bottomless exterior wall paint comprises the following steps: the method comprises the following steps of uniformly coating a 1KG component on the surface of a red brick wall, and after the wall surface is dried, uniformly coating a 0.9KG component on the wall surface, wherein the specific coating thickness is adjusted as required.
Specific example 2
The double-component bottom-free exterior wall paint comprises a component A and a component B, wherein the component A is prepared from the following components in parts by mass: 12.2% of water, 1.1% of propylene glycol, 1.3% of dispersing agent, 0.1% of anionic surfactant, 0.5% of defoaming agent, 0.3% of cellulose, 0.2% of pH regulator, 10% of titanium dioxide, 69% of functional emulsion, 0.2% of mildew preventive, 4.9% of film-forming assistant and 0.2% of preservative; the component B is integrated mortar, and the mass percentages of the component A and the component B are as follows: a: and B is 1: 0.9.
A preparation method of a bi-component bottomless exterior wall paint comprises the following steps in sequence:
(1) under the condition that the stirring speed is 1000 revolutions per minute, sequentially putting 12.2 percent of water, 1.1 percent of propylene glycol, 1.3 percent of dispersing agent, 0.1 percent of anionic surfactant, 0.5 percent of defoaming agent, 0.3 percent of cellulose and 0.2 percent of pH regulator into a production cylinder, and stirring for 5 minutes;
(2) increasing the stirring speed to 1600 revolutions per minute, adding 10 percent titanium dioxide, stirring for 30 minutes, and detecting the scraping fineness of the slurry until the detected scraping fineness is less than or equal to 50 micrometers;
(3) reducing the stirring speed to 800 r/min, sequentially adding 69% of functional emulsion, 4.9% of film-forming assistant, 0.2% of preservative and 0.2% of mildew preventive, and stirring for 12 min to obtain the bottom-free exterior wall paint of the component A;
(4) when in use, the component B integrated mortar is prepared by mixing the following components in a mass ratio of (A: B) to (1: 0.9, and evenly mixing to obtain the double-component bottom-free exterior wall paint.
An application method of a two-component bottomless exterior wall paint comprises the following steps: the method comprises the following steps of uniformly coating a 1KG component on the surface of a red brick wall, and after the wall surface is dried, uniformly coating a 0.9KG component on the wall surface, wherein the specific coating thickness is adjusted as required.
Specific example 3
The double-component bottom-free exterior wall paint comprises a component A and a component B, wherein the component A is prepared from the following components in parts by mass: 10.22% of water, 1.2% of propylene glycol, 1.2% of dispersing agent, 0.1% of anionic surfactant, 0.4% of defoaming agent, 0.18% of cellulose, 0.2% of pH regulator, 10% of titanium dioxide, 71% of functional milk, 0.2% of mildew preventive, 5.1% of film-forming additive and 0.2% of preservative; the component B is integrated mortar, and the mass percentages of the component A and the component B are as follows: a: and B is 1:1.
A preparation method of a bi-component bottomless exterior wall paint comprises the following steps in sequence:
(1) under the condition that the stirring speed is 600 revolutions per minute, sequentially putting 10.22% of water, 1.2% of propylene glycol, 1.2% of dispersing agent, 0.1% of anionic surfactant, 0.4% of defoaming agent, 0.18% of cellulose and 0.2% of pH regulator into a production cylinder, and stirring for 10 minutes;
(2) increasing the stirring speed to 1750 revolutions per minute, adding 10% titanium dioxide, stirring for 34 minutes, and detecting the scraping fineness of the slurry until the scraping fineness is less than or equal to 50 micrometers;
(3) reducing the stirring speed to 600 revolutions per minute, sequentially adding 71 percent of functional emulsion, 5.1 percent of film-forming assistant, 0.2 percent of preservative and 0.2 percent of mildew preventive, and stirring for 10 minutes to obtain the bottom-free exterior wall paint of the component A;
(4) when in use, the component B integrated mortar is prepared by mixing the following components in a mass ratio of (A: B) to (1: 1, uniformly mixing to obtain the double-component bottomless exterior wall paint.
An application method of a two-component bottomless exterior wall paint comprises the following steps: according to the mass ratio of A to B as 1:1, taking 1KG A component and 1KG B component, after the even mixing, evenly paint in cement mortar wall surface, specifically paint thickness, adjust as required.
Specific example 4
The double-component bottom-free exterior wall paint comprises a component A and a component B, wherein the component A is prepared from the following components in parts by mass: 10% of water, 1.2% of propylene glycol, 1.35% of dispersing agent, 0.1% of anionic surfactant, 0.5% of defoaming agent, 0.2% of cellulose, 0.2% of pH regulator, 11% of titanium dioxide, 70% of functional milk, 0.25% of mildew inhibitor, 5% of film-forming assistant and 0.2% of preservative; the component B is integrated mortar, and the mass percentages of the component A and the component B are as follows: a: b is 1: 1.1.
A preparation method of a bi-component bottomless exterior wall paint comprises the following steps in sequence:
(1) under the condition that the stirring speed is 800 r/min, 10% of water, 1.2% of propylene glycol, 1.35% of dispersing agent, 0.1% of anionic surfactant, 0.5% of defoaming agent, 0.2% of cellulose and 0.2% of pH regulator are put into a production cylinder in sequence and stirred for 12 min;
(2) increasing the stirring speed to 1800 rpm, adding 11% titanium dioxide, stirring for 38 minutes, and detecting the scraping fineness of the slurry until the scraping fineness is less than or equal to 50 micrometers;
(3) reducing the stirring speed to 1000 r/min, sequentially adding 70% of functional emulsion, 5% of film-forming assistant, 0.2% of preservative and 0.25% of mildew preventive, and stirring for 8 min to obtain the bottom-free exterior wall paint of the component A;
(4) when in use, the component B integrated mortar is prepared by mixing the following components in a mass ratio of (A: B) to (1: 1.1, uniformly mixing to obtain the double-component bottomless exterior wall paint.
An application method of a two-component bottomless exterior wall paint comprises the following steps: according to the mass ratio of A to B as 1:1.1, taking 1KG A component and 1.1KG B component, after mixing evenly, evenly paint on the surface of cement mortar wall, specifically paint thickness, adjust as required.
Specific example 5
The double-component bottom-free exterior wall paint comprises a component A and a component B, wherein the component A is prepared from the following components in parts by mass: 11.6% of water, 1.1% of propylene glycol, 1.5% of dispersing agent, 0.15% of anionic surfactant, 0.6% of defoaming agent, 0.35% of cellulose, 0.25% of pH regulator, 11% of titanium dioxide, 68% of functional emulsion, 0.3% of mildew preventive, 4.9% of film-forming assistant and 0.25% of preservative; the component B is integrated mortar, and the mass percentages of the component A and the component B are as follows: a: b is 1: 1.1.
A preparation method of a bi-component bottomless exterior wall paint comprises the following steps in sequence:
(1) under the condition that the stirring speed is 700 revolutions per minute, sequentially putting 11.6 percent of water, 1.1 percent of propylene glycol, 1.5 percent of dispersing agent, 0.15 percent of anionic surfactant, 0.6 percent of defoaming agent, 0.35 percent of cellulose and 0.25 percent of pH regulator into a production cylinder, and stirring for 15 minutes;
(2) increasing the stirring speed to 1700 revolutions per minute, adding 11 percent titanium dioxide, stirring for 40 minutes, and detecting the scraping fineness of the slurry until the scraping fineness is less than or equal to 50 micrometers;
(3) reducing the stirring speed to 850 revolutions per minute, sequentially adding 68 percent of functional emulsion, 4.9 percent of film-forming assistant, 0.25 percent of preservative and 0.3 percent of mildew preventive, and stirring for 5 minutes to obtain the bottom-free exterior wall paint of the component A;
(4) when in use, the component B integrated mortar is prepared by mixing the following components in a mass ratio of (A: B) to (1: 1.1, uniformly mixing to obtain the double-component bottomless exterior wall paint.
An application method of a two-component bottomless exterior wall paint comprises the following steps: according to the mass ratio of A to B as 1:1.1, taking 1KG A component and 1.1KG B component, after mixing evenly, evenly coating on the surface of the ceramic tile, specifically coating the thickness, and adjusting according to the requirement.
The technical performance indexes and experimental data of the bicomponent primer-free exterior wall paint are shown in the following tables.
Technical index test evaluation standard:
performance test data results:
it is apparent from the above table that after the tests in the above examples 1 to 5, the primer-topcoat coating in one of the examples 1 to 5 can satisfy various requirements of the formulation design, can improve the saltpetering resistance and the adhesion with the substrate to the maximum extent, has the functions of the primer and the topcoat, and effectively solves the problems of multiple coating processes and low efficiency of the conventional wall surface coating.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiment of the invention, the specific implementation mode and the application range can be changed, for example, the component-integrated waterproof mortar of the component B is selected, and the component-integrated waterproof mortar can be replaced by the mortar with the same property, for example, different color pastes can be mixed with the wall paint of the invention for use, so that the paint can be conveniently mixed with colors, and the decorative effect of the wall paint can be effectively improved. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The double-component bottomless exterior wall paint is characterized by comprising a component A and a component B, wherein the component A comprises the following components in percentage by mass: 10% -12.2% of water; 1.1 to 1.2 percent of propylene glycol; 1.2 to 1.5 percent of dispersant; 0.1% -0.15% of anionic surfactant; 0.4 to 0.6 percent of defoaming agent; 0.18 to 0.35 percent of cellulose; 0.2 to 0.25 percent of pH regulator; 10% -11% of titanium dioxide; 68% -71% of functional emulsion; 0.2 to 0.3 percent of mildew preventive; 4.9 to 5.1 percent of film-forming additive; 0.2 to 0.25 percent of preservative; the component B is integrated mortar, and the mass ratio of the component A to the component B is (A: B) 1, (0.9-1.1).
2. The two-component bottom-free exterior wall paint of claim 1, wherein the dispersant is a hydrophobically modified ammonium acrylate copolymer.
3. The two-component, bottom-free exterior wall paint of claim 1, wherein the anionic surfactant is an alcohol surfactant.
4. The two-component, bottom-free exterior wall paint of claim 1, wherein the cellulose is hydroxyethyl cellulose.
5. The two-component priming-free exterior wall paint of claim 1, wherein the functional emulsion is an acrylic polymer emulsion and the titanium dioxide is rutile titanium dioxide.
6. The two-component bottomless exterior wall paint of claim 1, wherein the integrated mortar is a silicate-based mortar.
7. The two-component priming-free exterior wall paint of claim 1, wherein the A component fineness of scraping is less than or equal to 50 microns.
8. The two-component bottomless exterior wall paint of claim 8, wherein the integrated mortar is waterproof and decorative integrated mortar of Guangzhou Kaiyu New Material Co.
9. The process for preparing a two-component primer-free exterior wall paint according to any one of claims 1 to 8, characterized in that it comprises the following steps carried out in order:
(1) under the condition that the stirring speed is 600-1000 r/min, water, propylene glycol, a dispersing agent, an anionic surfactant, a defoaming agent, cellulose and a pH regulator are put into a production cylinder in sequence, and are stirred for 5-15 min;
(2) increasing the stirring speed to 1500-1800 rpm, adding titanium dioxide, stirring for 30-45 minutes, and detecting the scraping fineness of the slurry until the scraping fineness is less than or equal to 50 micrometers;
(3) reducing the stirring speed to 600-1000 revolutions per minute, sequentially adding the functional emulsion, the film-forming assistant, the preservative and the mildew preventive, and stirring for 5-15 minutes to obtain the bottom-free exterior wall paint of the component A;
(4) when in use, the component B integrated mortar is prepared by mixing the following components in a mass ratio of (A: B) to (1: (0.9-1.1), and uniformly mixing to obtain the double-component bottomless exterior wall paint.
10. The application method of the double-component bottomless exterior wall paint is characterized in that when the paint is used, a proper amount of the component A is uniformly smeared on the surface of a wall, and then the components are mixed according to the mass ratio of A to B of 1: (0.9-1.1), uniformly coating the component B;
or when in use, the weight ratio of A to B is 1: (0.9-1.1), taking a proper amount of the component A and the component B, mixing, and uniformly coating on the surface of a wall.
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