CN112029351A - High-performance paste interface primer two-in-one coating and preparation method thereof - Google Patents
High-performance paste interface primer two-in-one 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
- 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
- C09D7/60—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
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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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention relates to a high-performance two-in-one coating for a paste interface primer, which comprises the following components in parts by weight: 10-12 parts of water; 0.1-0.3 part of thixotropic lubricant; 40-50 parts of modified silicone-acrylate emulsion; 0.3-0.5 part of bentonite; 0.3-0.5 part of a dispersing agent; 11-15 parts of coarse whiting; 25-27 parts of sand; 0.05-0.1 part of black paste; 0.3-0.5 parts of titanium dioxide; 0.3-0.5 part of hydroxyethyl cellulose; 0.8-1.2 parts of a film-forming assistant; 0.3-0.5 part of ethylene glycol; 0.1-0.3 part of AMP-95; 0.3-0.5 part of defoaming agent; 0.2-0.3 part of thickening agent and 0.2-0.4 part of antiseptic and mildew-proof agent. The high-performance paste interface primer two-in-one coating has excellent adhesion strength, the tensile adhesion is 1.2MPa, the high-performance paste interface primer two-in-one coating can replace an interface agent and a primer for use, and the high filling efficiency can replace putty to be used as a leveling material.
Description
Technical Field
The invention relates to the technical field of building coatings, in particular to a high-performance paste interface primer two-in-one and a preparation method thereof.
Background
Along with the more and more intense pursuit of people on healthy and clean ecological living environment, the more and more attention is paid to high-performance products, and the more and more worry is paid to the market of construction cost water rising ship height.
Primer, refers to a coating that is applied directly to the surface of an object as a solid foundation for a topcoat. The adhesive force of the upper layer coating is increased and the decorative property of the finish paint is improved. The primer coating can be classified into a primer coating, a surfacer coating, and the like according to the coating requirements.
The putty (filling mud) is a decorative material for leveling the surface of a wall body, is thick paste paint and is an essential product before painting. Is applied on the primer or directly applied on the object to remove the defects of high and low unevenness on the surface of the object to be coated.
An interface agent: the product for changing the physical and chemical properties of the interface of the object can also be called an interface modifier. The surface treatment of an object to improve the surface properties of the material is called surface treatment. The interfacial agent is applied in different fields, the technical means and purposes of the surface treatment of the object are different, and the treatment and modification of the object interface by the common interfacial agent can be divided into four technical types: wetting and impregnation, coating treatment, coupling agent treatment and surface modification.
Poor putty in the prior art causes the problems of paint film falling and pulverization and the like.
In the patent with publication number CN201810926058.7, a water-based organic silicon coating for concrete building protection and a preparation method thereof are disclosed, which protect latex ions by a silicone-acrylic emulsion modification method, so that the outer layer of the latex ions has electrostatic repulsion, the mechanical stability and storage stability of the emulsion are improved, and the water resistance of the coating is remarkably improved.
Disclosure of Invention
Technical problem to be solved
In view of the defects and shortcomings of the prior art, the invention provides a high-performance paste interface primer two-in-one coating, which combines the characteristics of an interface agent and a primer, has excellent adhesion strength and high tensile bonding strength, can replace the interface agent, putty and the primer, and only needs to be coated with a layer of high-performance paste interface primer two-in-one coating on a wall surface;
correspondingly, the invention also provides a preparation method of the high-performance paste interface primer two-in-one coating.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
a high-performance two-in-one coating for a paste interface primer comprises the following components in parts by weight:
10-12 parts of water;
0.1-0.3 part of thixotropic lubricant;
40-50 parts of modified silicone-acrylate emulsion;
0.3-0.5 part of bentonite;
0.3-0.5 part of a dispersing agent;
11-15 parts of coarse whiting;
25-27 parts of sand;
0.05-0.1 part of black paste;
0.3-0.5 parts of titanium dioxide;
0.3-0.5 part of hydroxyethyl cellulose;
0.8-1.2 parts of a film-forming assistant;
0.3-0.5 part of ethylene glycol;
0.1-0.3 part of AMP-95;
0.3-0.5 part of defoaming agent;
0.2-0.3 part of thickening agent;
and
0.2-0.4 part of antiseptic and mildew preventive.
Optionally, the dispersant is one or a combination of two of sodium salt dispersant and ammonium salt dispersant.
Optionally, the defoaming agent is one or a combination of mineral oil defoaming agent and silicone defoaming agent.
Optionally, the modified silicone-acrylic emulsion has a viscosity value of 2500-7000 cp, a solid content value of 44-46% and a minimum film-forming temperature of 20 ℃.
Optionally, the coalescent is an alcohol ester twelve.
Optionally, the thickener is one or a mixture of more than two of polyacrylic acid thickener, hydrophobic modified alkali swelling thickener or associated polyurethane thickener.
The invention also provides a preparation method of the high-performance paste interface primer two-in-one coating, which comprises the following steps:
s1, adding water into a dispersion tank, sequentially adding 0.3-0.5 part of hydroxyethyl cellulose and AMP-95 at the speed of 200-800 r/min, and stirring for 5-10 minutes;
s2, increasing the rotating speed to 1000-1500r/min, sequentially adding a thixotropic lubricant and bentonite, stirring for 2-4 minutes, then sequentially adding a dispersing agent and an antifoaming agent, and stirring for 2-4 minutes;
s3, increasing the rotating speed to 1500-2500 r/min, sequentially adding titanium dioxide, coarse whiting and sand, and stirring for 10-15 minutes;
s4, reducing the rotating speed to 800-1500 r/min, adding 40-50 parts of modified silicone-acrylate emulsion, stirring for 1-3 minutes, sequentially adding a film-forming assistant, ethylene glycol, black paste, an antiseptic and mildew-proof agent and a thickening agent, and uniformly stirring to obtain the wall paint.
(III) advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
the high-performance paste interface primer two-in-one coating provided by the invention has excellent adhesion strength and high tensile bonding strength of 1.2MPa, can replace an interface agent and a primer, has stronger construction performance and high filling efficiency, and can replace putty to be used as a leveling material. Therefore, the coating replaces an interface agent, putty and primer, thereby reducing the coating process of a building, simplifying the composition of the coating and simplifying 3-4 layers into one layer; the construction efficiency is improved, the labor cost is saved, and the construction period is shortened.
The modified silicone-acrylic copolymer emulsion is synthesized by adopting a composite technology polymerization process, has excellent bonding strength, and can enhance the adhesion of a coating, enhance the interlayer adhesion and improve the crack resistance.
The modified silicone-acrylic copolymer emulsion and the inorganic component are used, so that the salting-out resistance and efflorescence resistance of the wall paint are enhanced, and the service life of the system is prolonged.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention by way of specific embodiments thereof.
[ first embodiment ] to provide a toner
The wall surface is decorated by polishing and leveling after putty is applied, brushing an interface agent, and then brushing finish (or diatom ooze construction, wallpaper paving and pasting). Or a plurality of coating processes of coating an interface agent and coating a finish after scraping the primer, and the like. The high-performance paste interface primer two-in-one coating provided by the embodiment improves the adhesive force of the high-performance paste interface primer two-in-one coating by using the hydroxyethyl cellulose, the modified silicone-acrylic copolymer emulsion and the inorganic component, can be used as an interface agent and a primer, and has the function of filling putty. Through the matching of the following components, the adhesive force cannot be damaged due to the functional components of the heavy calcium carbonate, the bentonite, the sand and the black slurry which endow the paint putty, and the adhesive force of the paint is greatly improved by the hydroxyethyl cellulose, the modified silicon-acrylic copolymer emulsion and the inorganic component, and the paint has the effects of bacteriostasis and corrosion prevention. And because of the use of the components such as the modified silicone-acrylic copolymer emulsion, the heavy calcium and the like, the coating interface treating agent is endowed with the bidirectional adsorption capacity, so that the coating interface treating agent can be randomly coated on various wall surfaces, including the wall surfaces coated with the primer, the putty and the finish paint.
The modified silicone-acrylic copolymer emulsion is synthesized by adopting a unique Si-Plus technique polymerization process, and has the following structural advantages: in the core-shell structure, the hard-segment polymer in the core and the soft-segment polymer in the shell are introduced with the organic silicon monomer, so that the core-shell combination degree is high, and the linking force between the shell layers is stronger. The shell layer is more suitable for the film forming property under different environmental temperatures. The introduction of multiple silicon substances, the efficient combination of the reactive organosilicon with double bonds, the post-crosslinked epoxy silane and the post-neutralized silicon, and the mutual condensation after film formation form the water white resistant silicon-coated glass.
The embodiment comprises the following components in parts by weight:
10-12 parts of water;
0.1-0.3 part of thixotropic lubricant;
40-50 parts of modified silicone-acrylate copolymer emulsion;
0.3-0.5 part of bentonite;
0.3-0.5 part of a dispersing agent;
11-15 parts of coarse whiting;
25-27 parts of sand;
0.05-0.1 part of black paste;
0.3-0.5 parts of titanium dioxide;
0.3-0.5 part of hydroxyethyl cellulose;
0.8-1.2 parts of a film-forming assistant;
0.3-0.5 part of ethylene glycol;
0.1-0.3 part of AMP-95;
0.3-0.5 part of defoaming agent;
0.2-0.3 part of thickening agent;
and
0.2-0.4 part of antiseptic and mildew preventive.
Wherein the dispersant is one or the combination of two of sodium salt dispersant or ammonium salt dispersant.
Wherein the defoaming agent is one or the combination of two of a mineral oil defoaming agent and an organic silicon defoaming agent.
Wherein the viscosity value of the modified silicone-acrylate emulsion is 2500-7000 cp, the solid content value is 44-46%, and the lowest film forming temperature is 20 ℃.
Wherein, the film-forming additive is alcohol ester twelve. Wherein, the glycol is a good antifreeze agent;
the thickener is one or more of polyacrylic acid thickener, hydrophobic modified alkali swelling thickener or associated polyurethane thickener.
The viscosity value of the modified silicone-acrylic copolymer emulsion is 2500-7000 cp, the solid content value is 44-46%, and the lowest film forming temperature is 20 ℃.
The disinfectant also comprises a bactericidal preservative which is an isothiazolinone bactericide and has bactericidal and preservative effects;
wherein the mildew preventive is ZOE zinc-oxidopyridine antibacterial mildew preventive of Longsha, and has broad-spectrum antibacterial and mildew-proof effects.
The AMP-95 is a multifunctional amine auxiliary agent, is stable in adjusting the pH value of the emulsion adhesive, and has the functions of moistening and dispersing.
The water in the components is common tap water.
The components in the following specific examples are as follows.
Hydroxyethyl cellulose is B100K produced by Samsung chemical industry.
The thixotropic lubricant is a 602 clay-based additive to RockwoodAdditives.
The bentonite is Min-u-gel-400 bentonite from AMI corporation in America.
The dispersant is SN5040 type dispersant of Nopock.
The defoaming agent being produced by BASF
An antifoaming agent of ST 2410.
The heavy calcium carbonate is 325-mesh heavy calcium carbonate produced by Sannong.
The river sand is 70-140 meshes of river sand produced by the three friends group.
The novel modified silicone-acrylate emulsion is SK-96A emulsion produced by Badful.
The film forming aid is texnol dodecanol of Istman.
Ethylene glycol is produced continuously by Xiamenxin.
The black paste is the carbon black of the Degussa 810.
The sterilization preservative adopts isothiazolinone bactericide, which is an R-S preservative produced by Thor.
The mildew preventive is ZOE zinc-o-pyridine antibacterial mildew preventive of Longsha.
The thickener is TT935 thickener produced by Rohm and Haas. The same type of products can be used for each component.
[ second embodiment ] to provide a medicine for treating diabetes
The embodiment also provides a preparation method of the high-performance paste interface primer two-in-one coating, which comprises the following steps:
s1, adding water into a dispersion tank, sequentially adding 0.3-0.5 part of hydroxyethyl cellulose and AMP-95 at the speed of 200-800 r/min, and stirring for 5-10 minutes;
s2, increasing the rotating speed to 1000-1500r/min, sequentially adding a thixotropic lubricant and bentonite, stirring for 2-4 minutes, then sequentially adding a dispersing agent and an antifoaming agent, and stirring for 2-4 minutes;
s3, increasing the rotating speed to 1500-2500 r/min, sequentially adding titanium dioxide, coarse whiting and sand, and stirring for 10-15 minutes;
s4, reducing the rotating speed to 800-1500 r/min, adding 40-50 parts of emulsion, stirring for 1-3 minutes, sequentially adding a film-forming assistant, ethylene glycol, black paste, an antiseptic mildew inhibitor and a thickening agent, and uniformly stirring to obtain the wall paint.
In the embodiment, AMP-95, water and hydroxyethyl cellulose are mixed to prepare relatively viscous jelly, then thixotropic lubricant and bentonite are added to prepare uniform premix which can be used as primer, and on the basis, titanium dioxide, heavy calcium carbonate and sand are continuously added to the premix, so that the function of wall paint putty is endowed.
In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below. While exemplary embodiments of the present invention are shown below, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
The high-performance paste interface primer two-in-one coating is mainly prepared from the following components in parts by weight: 10 portions of water,
0.3 part of hydroxyethyl cellulose,
AMP-950.1 parts,
0.1 part of thixotropic lubricant,
0.3 portion of bentonite,
0.3 part of dispersant,
0.3 portion of defoaming agent,
0.3 part of titanium dioxide,
11.32 parts of coarse whiting,
25 portions of sand,
50 parts of modified silicone-acrylate emulsion,
1.2 parts of film-forming assistant,
0.3 part of glycol,
0.08 portion of black slurry,
0.2 portion of antiseptic and mildew-proof agent,
0.2 part of thickening agent.
The viscosity value of the modified silicone-acrylic copolymer emulsion is 2500-7000 cp, the solid content value is 44-46%, and the lowest film forming temperature is 20 ℃.
The preparation method of the high-performance paste interface primer two-in-one coating comprises the following steps:
s1, adding water with corresponding weight parts into a dispersion tank, sequentially adding hydroxyethyl cellulose and AMP-95 at the speed of 800r/min, and stirring for 7 minutes;
s2, increasing the rotating speed to 1000-1500r/min, sequentially adding the thixotropic lubricant and the bentonite, and stirring for 2 minutes; changing the mixture into a constant state, sequentially adding the dispersant and the defoamer in corresponding parts by weight, and stirring for 4 minutes;
s3, increasing the rotating speed to 2000r/min, sequentially adding titanium dioxide, coarse whiting and sand, and stirring for 10 minutes;
s4, reducing the rotating speed to 1500r/min, adding the modified silicone-acrylate emulsion, stirring for 2 minutes, sequentially adding the film-forming aid, the ethylene glycol, the black paste, the antiseptic and mildew-proof agent and the thickening agent, adjusting the viscosity to 35000mPa.s, and stopping the reaction to obtain the high-performance two-in-one coating of the pasty interface primer.
Example 2
The high-performance paste interface primer two-in-one coating is mainly prepared from the following components in parts by weight: 11 parts of water, 0.4 part of hydroxyethyl cellulose, 0.2 part of AMP-950.2 part of thixotropic lubricant, 0.4 part of bentonite, 0.4 part of dispersant, 0.4 part of defoamer, 0.4 part of titanium dioxide, 13.6 parts of triple superphosphate, 26 parts of sand, 45 parts of modified silicone-acrylate emulsion, 1.0 part of film-forming additive, 0.4 part of glycol, 0.05 part of black slurry, 0.3 part of antiseptic mildew inhibitor and 0.25 part of thickener;
the preparation method of the high-performance paste interface primer two-in-one coating comprises the following steps:
s1, adding water with corresponding weight parts into a dispersion cylinder, sequentially adding hydroxyethyl cellulose and AMP-95 with corresponding weight parts at the speed of 200r/min, and stirring for 10 minutes;
s2, increasing the rotating speed to 1300r/min, sequentially adding the thixotropic lubricant and the bentonite in corresponding parts by weight, and stirring for 2 minutes; changing the mixture into a constant state, sequentially adding the dispersant and the defoamer in corresponding parts by weight, and stirring for 4 minutes;
s3, increasing the rotating speed to 2000r/min, sequentially adding titanium dioxide, heavy calcium carbonate and sand in corresponding parts by weight, and stirring for 10 minutes;
s4, reducing the rotating speed to 1500r/min, adding the modified silicone-acrylic emulsion, stirring for 2 minutes, sequentially adding the film-forming aid, the ethylene glycol, the black paste, the antiseptic and mildew-proof agent and the thickening agent in corresponding parts by weight, adjusting the viscosity to 35000mPa.s, and stopping the reaction to obtain the high-performance pasty interface primer two-in-one coating.
The viscosity value of the modified silicone-acrylic copolymer emulsion is 2500-7000 cp, the solid content value is 44-46%, and the lowest film forming temperature is 20 ℃.
Example 3
The high-performance paste interface primer two-in-one coating is mainly prepared from the following components in parts by weight: 12 parts of water, 0.5 part of hydroxyethyl cellulose, 0.3 part of AMP-950.3 part of thixotropic lubricant, 0.5 part of bentonite, 0.5 part of dispersant, 0.5 part of defoamer, 0.5 part of titanium pigment, 14.9 parts of triple superphosphate, 27 parts of sand, 40 parts of emulsion, 0.8 part of film-forming additive, 0.5 part of glycol, 1.0 part of black paste, 0.4 part of antiseptic and mildew inhibitor and 0.3 part of thickener,
The preparation method of the high-performance paste interface primer two-in-one coating comprises the following steps:
s1, adding water with corresponding weight parts into a dispersion cylinder, sequentially adding hydroxyethyl cellulose and AMP-95 with corresponding weight parts at the speed of 500r/min, and stirring for 5 minutes;
s2, increasing the rotating speed to 1500r/min, sequentially adding the thixotropic lubricant and the bentonite in corresponding parts by weight, and stirring for 3 minutes; changing the mixture into a constant state, sequentially adding the dispersant and the defoamer in corresponding parts by weight, and stirring for 2 minutes;
s3, increasing the rotating speed to 2500r/min, sequentially adding titanium dioxide, coarse whiting and sand, and stirring for 13 minutes;
s4, reducing the rotating speed to 800r/min, adding the modified silicone-acrylic emulsion, stirring for 3 minutes, sequentially adding the film forming aid, the ethylene glycol, the black paste, the antiseptic and mildew-proof agent and the thickening agent in corresponding parts by weight, adjusting the viscosity to 45000mPa.s, and stopping the reaction to obtain the high-performance paste interface primer two-in-one coating.
The viscosity value of the modified silicone-acrylic copolymer emulsion is 2500-7000 cp, the solid content value is 44-46%, and the lowest film forming temperature is 20 ℃.
Comparative example 1
The modified silicone-acrylate emulsion was replaced with a commercially available ordinary silicone-acrylate emulsion, and the rest was the same as in example 1.
Comparative example 2
The procedure of example 1 was repeated except that hydroxyethyl cellulose was not added.
Comparative example 3
The procedure is as in example 1 except that no modified silicone-acrylic emulsion is added.
Comparative example 4
The procedure of example 1 was repeated except that the modified silicone-acrylic emulsion and the hydroxyethyl cellulose were not added.
Through the test of each embodiment, the technical indexes of the product are tested according to the standard requirements of JC/T907-2018 and JG/T210-2018 primer for internal and external walls of buildings in each embodiment of the invention, and the experimental data are shown in the following table:
the results of the tests of examples 1 to 3 were the same as the values of example 1 shown in the following table.
The numerical values are effective numerical values obtained through experimental verification, and are not data fluctuation caused by experimental errors through verification.
From the test results of the above examples, it can be seen that:
the high-performance paste interface primer prepared in the embodiments 1-3 of the invention has excellent adhesion strength, saltpetering resistance, high tensile bonding strength which can reach 1.2MPa, and excellent saltpetering resistance, construction performance and water resistance. The modified silicone-acrylate copolymer emulsion with the viscosity value of 2500-7000 cp, the solid content value of 44-46% and the lowest film forming temperature of 20 ℃ can greatly improve the adhesive force and the tensile bonding strength.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The high-performance two-in-one coating for the paste interface primer is characterized by comprising the following components in parts by weight:
10-12 parts of water;
0.1-0.3 part of thixotropic lubricant;
40-50 parts of modified silicone-acrylate emulsion;
0.3-0.5 part of bentonite;
0.3-0.5 part of a dispersing agent;
11-15 parts of coarse whiting;
25-27 parts of sand;
0.05-0.1 part of black paste;
0.3-0.5 parts of titanium dioxide;
0.3-0.5 part of hydroxyethyl cellulose;
0.8-1.2 parts of a film-forming assistant;
0.3-0.5 part of ethylene glycol;
0.1-0.3 part of AMP-95;
0.3-0.5 part of defoaming agent;
0.2-0.3 part of thickening agent;
and
0.2-0.4 part of antiseptic and mildew preventive.
2. The high performance paste interface primer two-in-one coating of claim 1, wherein: the dispersant is one or the combination of two of sodium salt dispersant or ammonium salt dispersant.
3. The high performance paste interface primer two-in-one coating of claim 1, wherein: the defoaming agent is one or the combination of two of a mineral oil defoaming agent and an organic silicon defoaming agent.
4. The high performance paste interface primer two-in-one coating of claim 1, wherein: the modified silicone-acrylate emulsion has a viscosity value of 2500-7000 cp, a solid content value of 44-46% and a minimum film-forming temperature of 20 ℃.
5. The high performance paste interface primer two-in-one coating of claim 1, wherein: the film-forming additive is alcohol ester twelve.
6. The high performance paste interface primer two-in-one coating of claim 1, wherein: the thickening agent is one or a mixture of more than two of polyacrylic acid thickening agent, hydrophobic modified alkali swelling thickening agent or associated polyurethane thickening agent.
7. A preparation method of a high-performance paste interface primer two-in-one coating is characterized by comprising the following steps:
s1, adding water into a dispersion tank, sequentially adding 0.3-0.5 part of hydroxyethyl cellulose and AMP-95 at the speed of 200-800 r/min, and stirring for 5-10 minutes;
s2, increasing the rotating speed to 1000-1500r/min, sequentially adding a thixotropic lubricant and bentonite, stirring for 2-4 minutes, then sequentially adding a dispersing agent and an antifoaming agent, and stirring for 2-4 minutes;
s3, increasing the rotating speed to 1500-2500 r/min, sequentially adding titanium dioxide, coarse whiting and sand, and stirring for 10-15 minutes;
s4, reducing the rotating speed to 800-1500 r/min, adding 40-50 parts of emulsion, stirring for 1-3 minutes, sequentially adding a film-forming assistant, ethylene glycol, black paste, an antiseptic and mildew-proof agent and a thickening agent, and uniformly stirring to obtain the wall paint.
Priority Applications (1)
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| KR102421138B1 (en) * | 2022-02-27 | 2022-07-14 | 김점식 | high elasticity nano putty |
| CN116694123A (en) * | 2023-05-04 | 2023-09-05 | 浙江绿色德环保科技股份有限公司 | Permeable environment-friendly type inner and outer wall filling putty slurry |
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| CN116694123A (en) * | 2023-05-04 | 2023-09-05 | 浙江绿色德环保科技股份有限公司 | Permeable environment-friendly type inner and outer wall filling putty slurry |
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