CN111018474B - Water-based sand-in-sand multicolor paint and preparation method thereof - Google Patents
Water-based sand-in-sand multicolor paint and preparation method thereof Download PDFInfo
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- CN111018474B CN111018474B CN201911401199.8A CN201911401199A CN111018474B CN 111018474 B CN111018474 B CN 111018474B CN 201911401199 A CN201911401199 A CN 201911401199A CN 111018474 B CN111018474 B CN 111018474B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
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Abstract
The invention discloses a water-based sand-in-sand multicolor paint, which relates to the technical field of paint preparation and consists of a sand-containing base material, a continuous phase and second-stage sand, wherein the sand-containing base material comprises the following components in parts by weight: 30-40 parts of water, 0.5-1.5 parts of cellulose ether, 0.2-0.5 part of dispersing agent, 0.1-0.2 part of wetting agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of bactericide, 0.2-0.4 part of mildew preventive, 1-2 parts of propylene glycol, 0.1-0.15 part of pH regulator, 1-2 parts of titanium dioxide, 2-5 parts of kaolin, 30-40 parts of first-grade sand, 20-30 parts of pure acrylic emulsion, 0.8-1 part of film-forming additive, 5-15 parts of silica sol and the mass parts of continuous phase: 20-40 parts of water, 2-3 parts of suspending agent, 0.2-0.4 part of bactericide, 0.1-0.2 part of defoaming agent, 1-3 parts of film-forming assistant, 50-80 parts of silicone-acrylate emulsion and 1-3 parts of propylene glycol; the grading of the graded sand is as follows: the 80-100 mesh sand accounts for 60-70, and the 100-120 mesh sand accounts for 30-40. The invention also discloses a preparation method of the water-based sand-in-sand multicolor paint, which effectively enhances the particle strength of color points, has good sagging resistance and good spraying effect, can reduce spraying steps, has good simulation, improves the stone-like decoration effect, effectively saves raw materials and processing steps and reduces the material consumption.
Description
Technical Field
The invention relates to the technical field of coatings, and particularly relates to a water-based sand-in-sand multicolor coating and a preparation method thereof.
Background
Along with the increasing living standard of people, the decoration requirements of people are higher and higher, which not only requires that decoration materials meet the environmental protection requirements and save resources, but also satisfies the requirements of people on beauty, and generally needs vivid stone-like materials. Driven by these demands, the water-in-water multicolor paint market is in increasing demand. The existing water-in-water multicolor paint is basically prepared by granulating base paint in protective adhesive and then using emulsion as a film-forming substance. The production mechanisms of the protective adhesive are approximately the same, but the performance of the protective adhesive is greatly different due to the difference of subsequent treatment modes; and the application varieties of the cellulose are various, and the varieties and the quality of the emulsion are also uneven, so that the existing water-in-water multicolor paint is easily influenced by factors such as environmental temperature, the system of the multicolor paint is unstable, and the following problems exist: 1. the particles are easy to shrink and bleed; 2. the particles are easy to contain sand, settle and delaminate; 3. the paint film is easy to turn white when meeting water; 4. the water resistance strength of a paint film is poor; 5. the paint film is formed by water volatilization, extrusion and fusion, and has poor density; 6. after being washed and soaked by rainwater, a paint film is foamed and falls off; 7. the decorative effect cannot imitate the marble effect like a litchi surface, coating can be finished by spraying for many times, and the existing colorful coating has poor fluidity, sagging and much material consumption, and the simulation degree needs to be improved.
Therefore, there is a need for improving the formulation and components of the current waterborne water-in-water multicolor paint to overcome the above-mentioned drawbacks of the prior art and provide a multicolor paint with better quality.
Disclosure of Invention
The invention aims to provide a water-based sand-in-sand multicolor paint to solve the problems of material consumption and easy sagging of the existing multicolor paint.
The basic scheme provided by the invention is as follows: the water-based sand-in-sand multicolor paint comprises 5-6 parts of sand-containing base material, 2-2.5 parts of continuous phase and 2-2.5 parts of second-stage sand, wherein the sand-containing base material comprises the following components in parts by mass:
30-40 parts of water, 0.5-1.5 parts of cellulose ether, 0.2-0.5 part of dispersing agent, 0.1-0.2 part of wetting agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of bactericide, 0.2-0.4 part of mildew inhibitor, 1-2 parts of propylene glycol, 0.1-0.15 part of pH regulator, 1-2 parts of titanium dioxide, 2-5 parts of kaolin, 30-40 parts of first-grade mixed sand, 20-30 parts of pure acrylic emulsion, 0.8-1 part of film-forming assistant and 5-15 parts of silica sol;
the continuous phase comprises the following components in parts by mass:
20-40 parts of water, 2-3 parts of suspending agent, 0.2-0.4 part of bactericide, 0.1-0.2 part of defoaming agent, 1-3 parts of film-forming assistant, 50-80 parts of silicone-acrylic emulsion and 1-3 parts of propylene glycol.
The scheme has the advantages that:
the cellulose ether and the pure acrylic emulsion respectively react with the silica sol in a crosslinking way to form an outer layer film and an internal crosslinking action, so that the sand particles and other particles in the coating have uniform strength and are not easy to damage, and the coating has less broken points after being coated. Compared with the condition that only an outer layer film can be generated through the reaction of aluminum magnesium silicate and cellulose in the prior art, the coating of the scheme is not easy to damage after coating, and particles are not easy to fall off.
The scheme only uses sand base materials and continuous items, does not use a protective agent, and directly cuts and granulates in the continuous items compared with the existing method which needs to use the protective agent for reaction and granulation.
The water-based sand-coated sand multicolor paint formed by the scheme can be formed by one-time spraying, and the problems of material consumption and high sagging tendency of the water-based multicolor paint produced at present are effectively solved.
Further, the cellulose ether is modified hydroxyethyl cellulose ether.
The cellulose ether is modified so that hydroxyethyl groups thereof can perform a crosslinking reaction with the silica sol.
Further, the bactericide is a BIT type formaldehyde-free environment-friendly bactericide.
Formaldehyde is reduced, and the formed coating is more environment-friendly.
Further, the pH regulator is organic amine with a boiling point of 283 ℃.
High boiling point, difficult volatilization, non-volatile organic compound, and increased environmental protection.
Furthermore, the gravel in the first-stage sand preparation and the second-stage sand preparation comprises the following components in parts by weight: the 80-100 mesh sand accounts for 60-70 parts, and the 100-120 mesh sand accounts for 30-40 parts.
The gravel can adopt quartz sand, and the reasonable proportion of various sizes of gravel can help to the appearance of imitative stone effect.
Furthermore, the acrylic emulsion is an emulsion containing an anionic surfactant and a carboxyl group as associative groups.
The cross-linking reaction between the pure acrylic emulsion and the silica sol is facilitated, and the color grain strength of the water-based sand-in-sand multicolor paint is enhanced.
Further, the silica sol is colloidal silica with solid content of 25% and average grain diameter of 8-10 nm.
The silica sol thus arranged is most susceptible to a crosslinking reaction.
Further, the film-forming assistant is a double-grease structure with a boiling point of 280 ℃.
The film-forming assistant adopts a high boiling point and is a non-volatile organic compound, so that the environmental protection of the coating is improved, and the gas pollution is reduced.
Further, the suspending agent is modified bentonite.
The modified bentonite is used for increasing the suspension property of color particles in the coating, so that the simulation effect of the coating is better and vivid.
The traditional water-based multicolor paint uses modified lithium magnesium silicate as a protective adhesive, and nano particles of the paint form a gel protective layer on a cellulose surface layer. According to the invention, through carrying out hydrogen bond association on the silica sol and the substance containing hydroxyl and carboxyl, winding the main chain of the cellulose, and improving the association effect of the cellulose and the hydrophobic group in the emulsion, a high-strength three-dimensional space network structure is formed, and the problem of low strength of sand-coated colorful color points is effectively solved.
The silica sol is a dispersion liquid of nano-scale silica particles in water or a solvent, a plurality of hydroxyl groups exist on the surface of the silica sol, the silica sol can form hydrogen bonds with water molecules, when the silica sol is mixed with a substance containing hydroxyl and carboxyl polar groups, the hydrogen bonding effect is enhanced, and a high-strength gel is formed.
The invention also provides a preparation method of the water-based sand-in-sand multicolor paint, wherein the water-based sand-in-sand multicolor paint consists of a sand-containing base material, a continuous phase and second-stage sand preparation, and the sand-containing base material comprises first-stage sand preparation; the preparation method of the water-based sand-in-sand multicolor paint comprises the following steps:
step one, respectively manufacturing a sand-containing base material and a continuous phase;
secondly, adding inorganic color paste into the sand-containing base material to adjust color to form a color monochromatic gel;
adding the color monochromatic gel into the continuous phase for granulation to form sand-coated paint;
and step four, adding the second-grade sand into the sand coating paint to form the water-based sand-coated multicolor paint.
The method has the advantages that:
compared with the traditional water-based multicolor paint, the sand-containing base material, the continuous phase and the protective agent or the protective glue are required to be added for reaction, the scheme can finish the preparation only by the sand-containing base material and the continuous phase, and the raw materials and the processing steps are effectively saved.
Compared with the existing water-based sand-coated sand multi-color coating which is easy to sag after being sprayed out, has larger loss and lower sagging resistance, the water-based sand-coated sand multi-color coating produced by the method has good sagging resistance, can be coated by only one-time spraying, saves the coating and reduces the material consumption.
In addition, gravel is added into the continuous items, so that the simulation degree is better and the stability is better.
Drawings
FIG. 1 is a view showing a microstructure of a silica sol according to the present invention.
FIG. 2 is a structural view of an aqueous cellulose solution according to the present invention.
FIG. 3 is a schematic representation of the association of cellulose and silica sol according to the present invention.
FIG. 4 is a schematic representation of the hydrophobic association of cellulose and emulsions according to the present invention.
FIG. 5 is a field picture of test 1 of the present invention.
FIG. 6 is a comparison of the ten test boards and the one comparative board in test 1 of the present invention after 8000 times of brushing.
FIG. 7 is a photograph of a second comparative plate in experiment 2 of the present invention.
FIG. 8 is a photograph of a test plate twenty in test 2 of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
the water-based sand-in-sand multicolor paint comprises 5-6 parts of A (sand-containing base material), 2-2.5 parts of B (continuous phase) and 2-2.5 parts of C (second-stage sand preparation). The paint composition may be made by using AB C within the above range according to the need.
Wherein the component A (sand-containing base material) comprises the following components in parts by mass: 30-40 parts of water, 0.5-1.5 parts of cellulose ether, 0.2-0.5 part of dispersing agent, 0.1-0.2 part of wetting agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of bactericide, 0.2-0.4 part of mildew inhibitor, 1-2 parts of propylene glycol, 0.1-0.15 part of pH regulator, 1-2 parts of titanium dioxide, 2-5 parts of kaolin, 30-40 parts of first-grade mixed sand, 20-30 parts of pure acrylic emulsion, 0.8-1 part of film-forming assistant and 5-15 parts of silica sol;
b (continuous phase) and the mass parts of the components are as follows:
20-40 parts of water, 2-3 parts of suspending agent, 0.2-0.4 part of bactericide, 0.1-0.2 part of defoaming agent, 1-3 parts of film-forming assistant, 50-80 parts of silicone-acrylic emulsion and 1-3 parts of propylene glycol.
Compared with the prior art that the outer layer film can only be generated on the outer surface of the coating through the reaction of the aluminum magnesium silicate and the cellulose, the outer layer film and the inner crosslinking effect are formed through the crosslinking reaction of the silica sol and the cellulose ether and the pure acrylic emulsion, so that the particles such as gravel in the coating have uniform strength and are not easy to damage, and the broken points generated after the coating is coated are few.
The structural diagrams of silica sol and cellulose are respectively shown in fig. 1 and fig. 2, and the cellulose ether in the sand-containing binder of the invention adopts modified hydroxyethyl cellulose ether, changes the hydroxyethyl group thereof, enables the hydroxyl groups of the silica sol and the cellulose ether to perform hydrogen bond association and cellulose main chain winding as shown in fig. 3, and improves the cellulose association to form a high-strength three-dimensional space network structure. Meanwhile, the acrylic emulsion contains polar groups, the acrylic emulsion is an emulsion containing association groups of anionic surfactant and carboxyl, and the polar groups are associated with the silica sol through hydrophobic groups in the emulsion as shown in figure 4, so that the hydrogen bond effect is enhanced, a high-strength gel is formed, and the strength of color points in the coating is improved.
And the silicone-acrylic emulsion is adopted in the continuous item instead of the pure acrylic emulsion, so that unnecessary coagulation and turbidity caused by the reaction of the continuous item and the silica sol can be prevented.
Wherein the bactericide is a BIT type formaldehyde-free environment-friendly bactericide. The pH regulator is organic amine with a boiling point of 283 ℃ and is a non-volatile organic compound. The film-forming assistant is of a double-grease structure, the boiling point of the film-forming assistant is about 280 ℃, and the film-forming assistant is a nonvolatile organic compound. By adopting the materials, the environmental protection performance of the whole coating can be effectively improved, the formaldehyde-free bactericide effectively avoids the problem of formaldehyde pollution frequently occurring in the existing coating, and the high-boiling-point non-volatile PH regulator and the film-forming additive effectively reduce the pollution to the air.
Wherein, the component and the ratio of gravel are in first grade sand and second grade sand: the 80-100 mesh sand accounts for 60-70, the 100-120 mesh sand accounts for 30-40, and the sand can adopt quartz sand. The silica sol is colloidal silica with solid content of 25% and average particle size of 8-10 nm.
Wherein the suspending agent is modified bentonite. The modified bentonite is a nanoscale product, and compared with the existing bentonite, the modified bentonite is flaky in microstructure, the modified bentonite in the embodiment is powdery, association with water is improved due to the introduction of a hydrophobic group, and the water resistance of the whole coating can be improved due to the adoption of the modified bentonite.
When the water-based sand-in-sand multicolor paint is prepared by adopting the formula, the following preparation method is adopted:
step one, respectively manufacturing a sand-containing base material and a continuous phase according to the formula, wherein first-grade sand in the sand-containing base material is prepared according to gravel components with various sizes.
And secondly, adding the manufactured A (sand-containing base material) into inorganic color paste (the inorganic color paste can be prepared by adopting the existing inorganic color paste) to adjust the color to obtain the color monochromatic gel.
Step three, adding the color monochromatic gel into the phase B (continuous phase) for granulation to prepare the sand-coated paint required by the water-based sand-coated colorful paint;
and step four, adding the C (second-stage sand preparation) into the sand-coated paint to obtain the water-based sand-coated colorful paint.
When the colored monochromatic gel is formed, the cellulose ether and the pure acrylic emulsion respectively react with the silica sol in a crosslinking way to form an outer layer film and an inner crosslinking action, so that the strength of particles such as gravel in the coating is uniform, the particles are not easy to damage, and the broken points generated after the coating is coated are few. Meanwhile, only the sand-containing base material and the continuous item are used, the commonly used protective agent in the prior art is not used, and compared with the method that the protective agent is used for reaction granulation in the prior art, the method directly performs cutting granulation in the continuous item, the preparation method is simpler and more convenient, and the prepared coating has better quality.
The traditional water-based multicolor paint uses modified lithium magnesium silicate as a protective adhesive, and nano particles of the paint form a gel protective layer on a cellulose surface layer. According to the preparation method, hydrogen bond association is carried out on silica sol and substances containing hydroxyl and carboxyl, the main chain of cellulose is wound, the association effect of the cellulose and hydrophobic groups in emulsion is improved, a high-strength three-dimensional space network structure is formed, and the problem of low strength of sand-coated colorful color points is effectively solved.
The silica sol is a dispersion liquid of nano-scale silica particles in water or a solvent, a plurality of hydroxyl groups exist on the surface of the silica sol, the silica sol can form hydrogen bonds with water molecules, when the silica sol is mixed with a substance containing hydroxyl and carboxyl polar groups, the hydrogen bonding effect is enhanced, and a high-strength gel is formed.
In addition, compared with the existing sand coating, the sand coating is formed by adding the second-grade sand, and not only the sand exists in the color points, but also the sand exists in the continuous items, so that the simulation effect is better.
Specifically, the preparation of the water-based sand-in-sand multicolor paint is carried out according to the formula and the preparation method, and the contrast of the prepared existing multicolor paint is carried out under the same conditions.
First, according to the above formulation and preparation method, example one to example ten were constructed with 5 parts of a (sand-containing base), 2 parts of B (continuous phase), 2 parts of C (second-stage sand) components, respectively, to obtain the formulation tables of the examples of table 1:
TABLE 1
According to the formula shown in the table 1, the preparation of the water-based sand-in-sand multicolor paint is completed by adopting the material components with the mass shown in the table 2 according to the preparation method.
TABLE 2
The waterborne sand-in-sand multicolor paints prepared in the above examples I to Ten are compared according to the tests in HG/T4343-.
In order to fully compare the multicolor paint produced by the formula and the preparation method of the invention with the existing multicolor paint, the same amount of the waterborne sand-in-sand multicolor paint prepared in the first embodiment, the fifth embodiment and the tenth embodiment is selected according to the same preparation conditions to carry out the following test comparison with the existing multicolor paint (comparative example):
test 1: washing and brushing test
1. The standard requires that: according to the standard requirement of ' HG/T4343 plus 2012 aqueous multicolor architectural coating ', the brushing resistance of the coating of the external multicolor architectural coating is not less than 2000 times '
2. The test steps are as follows:
preparing a test plate: the same quality sand-in-sand multicolor paint prepared in examples one, five and ten and the existing multicolor paint (comparative example) were applied to asbestos-free fiber cement slabs 430mm by 150mm by 3-6 mm by the same construction process, test boards one, test board five, test board ten and comparative example one were prepared respectively corresponding to examples one, five, ten and comparative examples, and the four boards were tested after being cured for 14 days in a standard environment.
Test instrument and scour media: the pH value of the washing instrument (containing a brush) for the architectural coating and 0.5 percent washing powder solution is 9.5 to 11.0.
The testing process comprises the following steps: firstly, preparing a brushing medium; then 12mm of brush bristles are immersed into water with the temperature of 23 +/-2 ℃ for 30min, and then 12mm of brush bristles are immersed into a brushing medium for 20 min; and finally, horizontally fixing the painting surfaces of the test board and the comparison board on a test bedplate of a scrub-resistant tester, placing the treated brush on the painting surface of the test board, dripping about 2ml of scrubbing medium into a test area of the test board, starting the tester, starting the brush to perform reciprocating brushing motion on the test board and the comparison board, and dripping 0.04ml of scrubbing medium per second to keep the scrubbing surface wet. And after the substrate is exposed in the middle 100mm area of the length of the first test plate and the first contrast plate after being brushed for a specified number of times or until the substrate is exposed, the first test plate and the first contrast plate are taken down, and one surface of the first test plate and the first contrast plate is washed clean by water.
3. And (3) test results: all panels were brushed a prescribed 2000 times, wherein the first comparative panel brushed away to expose the substrate when brushing around 3000 times, the first and tenth example test panels began to expose the substrate when brushing around 8000 times, and the fifth example test panel did not gradually expose the substrate until brushing around 10000 times.
Fig. 5 is a field picture of test 1, and test 1 is performed in such a test environment. Fig. 6 is a comparative picture of test panel ten according to example ten and comparative panel one according to example 1 after 8000 scrubs, wherein the test panel ten is on the left and the comparative panel one is on the right, it is evident from fig. 6 that the colour point of the comparative panel one is broken, the bottom substrate is completely exposed and the coating of the test panel ten is substantially intact.
From the results of test 1, it can be fully demonstrated that example five is superior to example one and example ten in terms of scrub resistance, and that example one and example ten are superior to comparative example, and that the water-based sand-coated sand multicolor paint prepared in example five has better color grain strength than those prepared in example one and example ten, and meanwhile, the water-based sand-coated sand multicolor paint prepared in example one and example ten has better color grain strength than that of the existing multicolor paint sold on the market.
Through test 1, the water-based sand-coated sand multicolor paint prepared by the formula and the preparation method is fully proved to have high particle strength, higher storage stability, difficult damage, difficult generation of broken points and obviously better quality compared with the existing multicolor paint.
Test 2: simulation test
1. The test steps are as follows: the waterborne sand-in-sand multicolor paint prepared in the tenth example was coated on the asbestos-free fiber cement flat plate coated with the primer after the same amount of the multicolor paint prepared in the comparative example 1 (real stone paint + water-in-water multicolor paint) was removed, and then the finishing varnish was coated to prepare the twenty test boards and the two comparative boards.
2. And (3) test results: as shown in fig. 7 and 8, fig. 7 is a comparison board two, that is, a colorful coating board formed by spraying a real stone paint on a primer, fig. 8 is a test board twenty, that is, a colorful coating board formed by spraying the waterborne sand-coated sand colorful coating prepared in example ten, the simulation effect of fig. 8 is obviously better than that of fig. 7 as seen from two pictures, and more importantly, the existing colorful coatings such as the real stone paint can produce a stone simulation effect only under the premise of being matched with the primer, while the waterborne sand-coated sand colorful coating prepared in the invention can be directly sprayed without using the real stone paint, and has good simulation and sagging resistance.
The simulation degree is an important judgment index for the multicolor paint and is one of the main characteristics of attracting users. Because the surface effects of granite stone for building decoration materials are generally divided into smooth surface effects and burnt stone/litchi surface effects, people will make demands on the preparation of multicolor coatings in order to pursue such effects.
The traditional multicolor paint needs to achieve the effect of a burnt stone/litchi surface, a method of adopting primer and real stone paint (namely a preparation method of a contrast plate II) is needed to be adopted during spraying, the real stone paint is a sand-containing paint composed of various quartz sands and provides texture effect and main color tone of stone, in order to increase color, the existing water-in-water multicolor paint is generally sprayed on the real stone paint, the water-in-water multicolor paint provides color particles to play a decorative effect, and finally, finishing varnish is coated to form the multicolor paint plate shown in figure 7, namely the contrast plate II. Compared with the second board, as the color dots of the water-in-water multicolor paint are of smooth sheet structures, the color dots and the real stone paint can not be well fused together after spraying, and the color dots appear to float on the real stone paint, so that the simulation degree is not good. In the test board prepared in the tenth embodiment, as the sand-in-sand multicolor paint is directly sprayed, the color dots of the sand-in-sand multicolor paint contain quartz sand, the continuous phase also contains quartz sand, and the color dots and the continuous phase are fused together, so that the effect of burning the burnt granite can be sprayed by one gun, the simulation degree is improved on the premise of reducing the operation flow, and the effect is shown in fig. 8, and only primer, the sand-in-sand multicolor paint and finishing varnish are needed.
Test 3: sag resistance test
In test 2, when the test board twenty and the comparison board two are manufactured, the spraying frequency of the multicolor paint in the test board manufacturing process is counted, wherein the test board twenty can be completed only by spraying the spray gun once, and when the comparison board two is manufactured, the multicolor paint can be completed only by spraying the water-in-water multicolor paint at least three times in front and at back. This fully demonstrates that the sag resistance of the waterborne sand-in-sand multicolor coating prepared in example ten is far better than the current multicolor coatings.
In the above three tests, the comparative example ten and the comparative example one are all in the lower quality solutions in the respective examples, and on the basis that the waterborne sand-in-sand multicolor paint prepared in the example ten is superior to the existing multicolor paint and stone-like paint, it is fully demonstrated that all the solutions of the present invention are superior to the existing multicolor paint and stone-like paint.
In the first to tenth embodiments, the hydroxyethyl cellulose is cellulose containing hydroxyethyl associative groups and having a degree of substitution of 2.5; the first-stage sand preparation comprises 80-mesh sand accounting for 35, 90-mesh sand accounting for 30, 100-mesh sand accounting for 10, 110-mesh sand accounting for 15 and 120-mesh sand accounting for 10.
According to the invention, reasonable first-stage sand mixing is adopted, so that the water-based sand-coated sand multicolor paint can be made into a simulation degree which simulates marble and has a decorative effect like a litchi surface.
The remaining examples: in this series of examples, example eleven to example twenty were respectively constructed as shown in tables 1 and 2 from 5.1 parts of a (sand-containing base), 2.1 parts of B (continuous phase), and 2.1 parts of C (second-stage sand blending) component;
example twenty-one to example thirty were respectively constructed from 5.2 parts of a (sand-containing base), 2.2 parts of B (continuous phase), and 2.2 parts of C (second-stage sand blending) component according to table 1 and table 2;
example thirty-one to example forty were respectively constructed from 5.3 parts of a (sand-containing base), 2.3 parts of B (continuous phase), 2.3 parts of C (second-stage sand-blending) component according to table 1 and table 2;
examples forty-one to fifty were respectively constructed from 5.4 parts of a (sand-containing base), 2.4 parts of B (continuous phase), 2.4 parts of C (second-stage sand-blending) component according to table 1 and table 2;
example fifty-one to example sixty were constructed from 5.5 parts of a (sand-containing base), 2.5 parts of B (continuous phase), 2.5 parts of C (second-stage sand-blending) component, respectively, according to table 1 and table 2;
examples sixty one to seventy were respectively constructed from 5.6 parts of a (sand-containing base), 2.5 parts of B (continuous phase), and 2.5 parts of C (second-stage sand blending) component according to table 1 and table 2;
examples seventy-one to eighty-one were respectively constructed from 5.7 parts of a (sand-containing base), 2.5 parts of B (continuous phase), 2.5 parts of C (second-stage sand-blending) component according to table 1 and table 2;
examples seventy-one to eighty-one were respectively constructed from 5.8 parts of a (sand-containing base), 2.5 parts of B (continuous phase), 2.5 parts of C (second-stage sand-blending) component according to table 1 and table 2;
examples eighty-one to ninety-one were constructed from 5.9 parts of a (sand-containing base), 2.5 parts of B (continuous phase), 2.5 parts of C (second-stage sand-formulated) components, respectively, according to table 1 and table 2;
examples ninety one to example one hundred were constructed from 6 parts of a (gritty base), 2.5 parts of B (continuous phase), 2.5 parts of C (second stage grit) components, respectively, according to tables 1 and 2;
comparing the waterborne sand-in-sand multicolor paint prepared in the first to the second embodiments respectively according to the tests in HG/T4343-2012, it is found that some test data are slightly worse than those of the waterborne sand-in-sand multicolor paint prepared in the first to the second embodiments, but the test data are better than those of the existing waterborne multicolor paint, the mode effect is better than that of the existing real stone paint and water-in-water multicolor paint, and the spraying effect and the sagging resistance are better than those of the existing sand-in-sand paint.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. The water-based sand-in-sand multicolor paint is characterized by comprising 5-6 parts of sand-containing base material, 2-2.5 parts of continuous phase and 2-2.5 parts of second-stage prepared sand, wherein the sand-containing base material comprises the following components in parts by mass:
30-40 parts of water, 0.5-1.5 parts of cellulose ether, 0.2-0.5 part of dispersing agent, 0.1-0.2 part of wetting agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of bactericide, 0.2-0.4 part of mildew inhibitor, 1-2 parts of propylene glycol, 0.1-0.15 part of pH regulator, 1-2 parts of titanium dioxide, 2-5 parts of kaolin, 30-40 parts of first-grade mixed sand, 20-30 parts of pure acrylic emulsion, 0.8-1 part of film-forming assistant and 5-15 parts of silica sol;
the continuous phase comprises the following components in parts by mass:
20-40 parts of water, 2-3 parts of a suspending agent, 0.2-0.4 part of a bactericide, 0.1-0.2 part of a defoaming agent, 1-3 parts of a film-forming assistant, 50-80 parts of silicone-acrylic emulsion and 1-3 parts of propylene glycol;
the gravel in the first-stage sand preparation and the second-stage sand preparation comprises the following components in parts by weight: 60-70 parts of 80-100 mesh sand and 30-40 parts of 100-120 mesh sand;
the silica sol is colloidal silica with solid content of 25% and average grain diameter of 8-10 nm.
2. The waterborne sand-in-sand multicolor coating of claim 1, wherein the cellulose ether is a modified hydroxyethyl cellulose ether.
3. The waterborne sand-in-sand multicolor paint as claimed in claim 1, wherein the bactericide is BIT type formaldehyde-free environment-friendly bactericide.
4. The waterborne sand-in-sand multicolor paint of claim 1, wherein the pH regulator is organic amine with a boiling point of 283 ℃.
5. The waterborne sand-in-sand multicolor paint of claim 1, wherein the acrylic emulsion is an emulsion containing anionic surfactant as associative group and carboxyl group.
6. The waterborne sand-in-sand multicolor paint of claim 1, wherein the film forming additive is a diester structure with a boiling point of 280 ℃.
7. The waterborne sand-in-sand multicolor paint of claim 1, wherein the suspending agent is modified bentonite.
8. The preparation method of the water-based sand-in-sand multicolor paint is characterized in that the water-based sand-in-sand multicolor paint consists of a sand-containing base material, a continuous phase and second-stage sand preparation, wherein the sand-containing base material comprises first-stage sand preparation; the preparation method of the water-based sand-in-sand multicolor paint comprises the following steps:
step one, respectively manufacturing a sand-containing base material and a continuous phase;
secondly, adding inorganic color paste into the sand-containing base material to adjust color to form a color monochromatic gel;
step three, adding the color monochromatic gel into the continuous phase for granulation to form sand-coated paint;
adding the second-grade sand into the sand-coated paint to form a water-based sand-coated colorful paint;
the gravel in the first-stage sand preparation and the second-stage sand preparation comprises the following components in parts by weight: 60-70 parts of 80-100 mesh sand and 30-40 parts of 100-120 mesh sand;
wherein the sand-containing base material comprises the following components in parts by weight:
30-40 parts of water, 0.5-1.5 parts of cellulose ether, 0.2-0.5 part of dispersing agent, 0.1-0.2 part of wetting agent, 0.2-0.5 part of defoaming agent, 0.2-0.4 part of bactericide, 0.2-0.4 part of mildew inhibitor, 1-2 parts of propylene glycol, 0.1-0.15 part of pH regulator, 1-2 parts of titanium dioxide, 2-5 parts of kaolin, 30-40 parts of first-grade mixed sand, 20-30 parts of pure acrylic emulsion, 0.8-1 part of film-forming assistant and 5-15 parts of silica sol;
the silica sol is colloidal silica with solid content of 25% and average grain diameter of 8-10 nm.
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| CN113943508A (en) * | 2020-07-16 | 2022-01-18 | 庞贝捷涂料(上海)有限公司 | Emulsion paint for sand-coated sand multicolor coating system and preparation method thereof |
| CN113861793B (en) * | 2021-10-11 | 2023-03-21 | 亚士创能科技(上海)股份有限公司 | Continuous phase material and preparation method and application thereof |
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| CN106497283A (en) * | 2016-10-31 | 2017-03-15 | 富思特新材料科技发展股份有限公司 | A kind of hydrogen bond crosslinks type water-in-water multicolor coating and preparation method thereof |
| CN108276914A (en) * | 2018-01-15 | 2018-07-13 | 亚士漆(上海)有限公司 | Aqueous bush-hammered face imitates stone colour-wash containing sand and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106497283A (en) * | 2016-10-31 | 2017-03-15 | 富思特新材料科技发展股份有限公司 | A kind of hydrogen bond crosslinks type water-in-water multicolor coating and preparation method thereof |
| CN108276914A (en) * | 2018-01-15 | 2018-07-13 | 亚士漆(上海)有限公司 | Aqueous bush-hammered face imitates stone colour-wash containing sand and preparation method thereof |
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