CN113698829B - Water-in-water paint and application thereof - Google Patents
Water-in-water paint and application thereof Download PDFInfo
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- CN113698829B CN113698829B CN202110797698.4A CN202110797698A CN113698829B CN 113698829 B CN113698829 B CN 113698829B CN 202110797698 A CN202110797698 A CN 202110797698A CN 113698829 B CN113698829 B CN 113698829B
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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Abstract
The invention relates to a water-in-water coating and application thereof. The water-in-water coating comprises a base paint, a granulating liquid and a continuous phase, wherein the base paint comprises: 50-80% of water, 0.5-1.2% of first hydroxyethyl cellulose, 5-20% of acrylate emulsion, 0.9-35% of pigment and filler and 0.2-0.6% of first alkali swelling thickener; the granulation liquid comprises: 90 to 95 percent of water and 4.8 to 10 percent of protective glue containing magnesium lithium silicate; the continuous phase comprises: 35 to 69.7 percent of water, 0.2 to 1 percent of second hydroxyethyl cellulose, 30 to 60 percent of acrylate emulsion and 0.1 to 0.4 percent of second alkali swelling thickener; the viscosity of the first hydroxyethyl cellulose is greater than the viscosity of the second hydroxyethyl cellulose; the mass ratio of the base paint to the granulating liquid in the colored particles is more than 3:1, and the mass ratio of the colored particles to the continuous phase is (0.5-2.5): 1. The water-in-water coating has the advantages of appropriate strength, high toughness, deformation, brush coating and wide application prospect.
Description
Technical Field
The invention relates to the field of coatings, in particular to a water-in-water coating and application thereof.
Background
The water-in-water colorful paint, also called liquid stone, belongs to a full-aqueous and one-time spraying colorful granite paint, and the produced color is vivid, durable and high in simulation degree. Compared with the traditional real stone paint product, the water-in-water multicolor paint has the characteristics of low cost, low paint consumption in construction, convenience in transportation, high raw material requirement and the like.
When numerous performances are excellent, we can find that water-in-water makes its product comparatively diversified because of the collocation of colour, this kind of diversification is the diversification of colour more, the shape is often very single, it is circular mostly, and oval, and the point shape is fixed, can't change, see in the outer wall, the area is big, generally the stadia is far away, often can not see the detail problem, when this kind of water-in-water coating is used on the inner wall, often give other people and be hard, it is protruding, unnatural sensation, produce aesthetic fatigue easily, customer satisfaction just begins, but with having lasted for a long time, can question the product aesthetic feeling effect.
The principle of the water-in-water coating is that the colored base paint (disperse phase) is added into the aqueous solution (granulating liquid) containing the protective glue, so that the base paint liquid drops and the protective glue liquid are gelatinized on the surface, thereby forming a layer of water-insoluble flexible film which can prevent the mutual diffusion and condensation of the pigment liquid drops and can also prevent the mutual diffusion of all components of the coating in the film and the protective glue liquid outside the film, ensuring the basic stability of the colored particles, and then the continuous phase is added for assistance, thus preparing the water-in-water coating.
For a traditional flexible film with colored particles, the strength and the toughness of the flexible film are difficult to combine at the same time, and the toughness of the flexible film is poor when the strength is high, so that the flexible film can only be used for spraying construction; when the toughness is high, the strength of the flexible film is poor and the film is easily broken. How to find a balance in the flexible membrane enables the flexible membrane with the color particles to have both good strength and high toughness, so that the method has important significance in manufacturing the water-in-water coating which has appropriate strength, high toughness, can be deformed and can be brushed.
Disclosure of Invention
Based on the water-in-water paint, the water-in-water paint is suitable in strength, high in toughness, deformable and capable of being brushed.
The technical scheme is as follows:
a water-in-water coating is prepared from basic paint, granulating liquid and continuous phase;
the base paint is prepared from the following raw materials in percentage by mass: 50-80% of water, 0.5-1.2% of first hydroxyethyl cellulose, 5-20% of first emulsion, 0.9-35% of pigment and filler and 0.2-0.6% of first alkali swelling thickener;
the granulation liquid is prepared from the following raw materials in percentage by mass: 90 to 95 percent of water and 4.8 to 10 percent of protective glue containing magnesium lithium silicate;
the continuous phase is prepared from the following raw materials in percentage by mass: 35% -69.7% of water, 0.2% -1% of second hydroxyethyl cellulose, 30% -60% of second emulsion and 0.1% -0.4% of second alkali swelling thickener;
the viscosity of the first hydroxyethyl cellulose is greater than the viscosity of the second hydroxyethyl cellulose;
the first emulsion and the second emulsion are selected from acrylate emulsions, the first emulsion and the protective glue containing the magnesium lithium silicate have reactivity, and the second emulsion and the protective glue containing the magnesium lithium silicate have no reactivity;
the preparation method of the water-in-water coating comprises the following steps:
adding the granulating liquid into the base paint, and stirring to prepare colored particles;
mixing the color particles and the continuous phase according to the mass ratio (0.5-2.5) to 1;
the mass ratio of the base paint to the granulating liquid is more than 3: 1.
In one embodiment, when the colored particles are prepared, the mass ratio of the base paint to the granulating liquid is (4-9): 1.
In one embodiment, the viscosity of a first hydroxyethyl cellulose aqueous solution containing the first hydroxyethyl cellulose at 25 ℃ and having a mass concentration of the first hydroxyethyl cellulose of 1% is 5000-15000 cps;
the viscosity of a second hydroxyethyl cellulose aqueous solution which contains the second hydroxyethyl cellulose at 25 ℃ and has a mass concentration of 1% of the second hydroxyethyl cellulose is 1500 centipoise to 2500 centipoise;
the viscosity of the first emulsion at 25 ℃ is 100 mPs-3000 mPs, and the solid content is 45% +/-5%;
the viscosity of the second emulsion at 25 ℃ is less than or equal to 500mP & s, and the solid content is 36% +/-8%.
In one embodiment, the first hydroxyethyl cellulose is Ashland HE-10K and the second hydroxyethyl cellulose is Ashland 250 HBR;
the first emulsion is a Wanhua 8029 emulsion, and the second emulsion is a Wanhua 8087 emulsion;
the first alkali swelling thickener and the second alkali swelling thickener are both TT 935.
In one embodiment, the pigment and filler comprises 0.2-10% of titanium dioxide, 0.5-15% of pearl powder and 0.2-10% of kaolin by mass percentage of the base paint, or the pigment and filler comprises 0.2-10% of titanium dioxide, 0.5-15% of pearl powder and 0.2-10% of diatomite by mass percentage.
In one embodiment, the raw materials for preparing the base paint further comprise a dispersing agent, a wetting agent, a first defoaming agent, a first film-forming assistant, a first multifunctional assistant and a first preservative;
the preparation raw materials of the granulating liquid also comprise a second preservative;
the preparation raw materials of the continuous phase also comprise a second defoaming agent, a second film forming aid, an antifreezing agent, a second multifunctional aid and a third corrosion inhibitor.
In one embodiment, the base paint is prepared from the following raw materials in percentage by mass: 50-80% of water, 0.5-1.2% of first hydroxyethyl cellulose, 5-20% of first emulsion, 0.9-35% of pigment and filler, 0.2-0.6% of first alkali swelling thickener, 0.1-0.4% of dispersant, 0.1-0.4% of wetting agent, 0.1-0.4% of first antifoaming agent, 0.2-2% of first film-forming assistant, 0.05-0.2% of first multifunctional assistant and 0.2-1% of first preservative;
the granulation liquid is prepared from the following raw materials in percentage by mass: 90 to 95 percent of water, 4.8 to 10 percent of protective glue containing magnesium lithium silicate and 0.2 to 0.5 percent of second preservative;
the continuous phase is prepared from the following raw materials in percentage by mass: 35-67% of water, 0.2-1% of second hydroxyethyl cellulose, 30-60% of second emulsion, 0.1-0.4% of second alkali swelling thickener, 0.1-0.5% of second defoaming agent, 1.5-4% of second film forming auxiliary agent, 0.3-1.2% of antifreezing agent, 0.05-0.4% of second multifunctional auxiliary agent and 0.2-0.6% of third corrosion inhibitor.
In one embodiment, the base paint is prepared from the following raw materials in percentage by mass:
60-78% of water, 0.8-1.2% of first hydroxyethyl cellulose, 8-20% of first emulsion, 5-25% of pigment and filler, 0.2-0.6% of first alkali swelling thickener, 0.1-0.4% of dispersant, 0.1-0.4% of wetting agent, 0.1-0.4% of first antifoaming agent, 0.2-2% of first film-forming assistant, 0.05-0.2% of first multifunctional assistant and 0.2-1% of first preservative;
the granulation liquid is prepared from the following raw materials in percentage by mass: 91-94.5% of water, 5-8.7% of protective glue containing lithium magnesium silicate and 0.3-0.5% of second preservative;
the continuous phase is prepared from the following raw materials in percentage by mass: 38-65% of water, 0.5-1% of second hydroxyethyl cellulose, 32-55% of second emulsion, 0.1-0.4% of second alkali swelling thickener, 0.1-0.5% of second defoamer, 1.5-4% of second film forming aid, 0.3-1.2% of antifreeze, 0.05-0.4% of second multifunctional aid and 0.2-0.6% of third preservative.
In one embodiment, the dispersant is a sodium polycarboxylate dispersant; and/or the presence of a gas in the atmosphere,
the wetting agent is selected from at least one of polyoxyethylene alkylphenol ether, polyoxyethylene fatty alcohol ether, polyoxyethylene polyoxypropylene block copolymer, polyoxyethylene alkylaryl ether, polyethoxy nonylphenol or nonionic alkoxylated alcohol surfactant; and/or the presence of a gas in the gas,
the first and second defoaming agents are selected from silicone surfactants.
In one embodiment, the dispersant is ECODIS P30 or SN-5040; and/or the presence of a gas in the gas,
the first defoaming agent and the second defoaming agent are both NXZ of Nopulidae; and/or the presence of a gas in the gas,
the first film forming additive and the second film forming additive are both alcohol ester twelve; and/or the presence of a gas in the atmosphere,
the first multifunctional auxiliary agent and the second multifunctional auxiliary agent are both Dow AMP-95; and/or the presence of a gas in the gas,
the antifreezing agent is ethylene glycol; and/or the presence of a gas in the gas,
the first preservative, the second preservative and the third preservative are all MBS 5050.
In one embodiment, the preparation method of the base paint comprises the following steps:
mixing the raw materials for preparing the base paint;
the preparation method of the granulating liquid comprises the following steps:
mixing raw materials for preparing the granulating liquid;
the preparation method of the continuous phase comprises the following steps:
mixing the raw materials for preparing the continuous phase.
In one embodiment, the step of preparing the color particles by mixing the base paint and the granulating liquid according to the mass ratio of more than 3:1 comprises the following steps:
and adding the granulating liquid into the base paint, and stirring and granulating.
The invention also provides a decorative paint capable of being brushed, and the preparation raw materials of the decorative paint comprise the water-in-water paint.
In one embodiment, the brushable decorative coating is a building interior wall decorative coating.
The invention has the following beneficial effects:
the inventor discovers through research that base paint is prepared by adopting specific amount of water, hydroxyethyl cellulose with larger viscosity, emulsion, pigment filler and alkali swelling thickener, granulating liquid is prepared by adopting specific amount of water and specific protective glue, the granulating liquid with specific proportion is added into the base paint, the base paint liquid drop and the protective glue liquid are mixed and granulated in a stirring mode, the base paint liquid drop and the protective glue liquid are gelatinized on the surface to form a layer of water-insoluble flexible film with good toughness and proper strength, and the emulsion, the pigment filler, the alkali swelling thickener and water in the film can stably exist. Before the continuous phase is not added, due to the fact that the content of insufficient protective glue is added, the flexible film on the surface of the color particle is incomplete, the flexible film is soft in performance, and therefore the flexible film has good toughness, but poor in strength, and single color particle is fragile and easy to paste when used and cannot be used.
Drawings
FIG. 1 is a construction effect picture of example 1;
fig. 2 is a construction effect picture of comparative example 1.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The film that basic paint and granulation liquid formed through the gelatinization often toughness poor, it is very fragile, break very easily when high shear, cause the bits to break or paste and fall, can't form good deformation in the construction, therefore water-in-water coating often constructs with the spraying, and can't brush, because the shape of colored grain itself does not almost change during the spraying, the toughness demand to colored grain is very low, consequently, the destruction that leads to the fact colored grain itself is very little, but the spraying is great to the loss ratio of coating, and the spraying needs to use specific instrument, the later maintenance is troublesome. Compared with spraying, the brush coating adopts a brush construction process, the obtained paint film has a plane effect, the construction time is long, the cost is low, the paint film formed after the brush coating has better texture, the patterns are clearer and more obvious, and the later maintenance is convenient.
For the flexible film of color particles, the strength and toughness are often difficult to combine at the same time, and the toughness of the flexible film will be poor when the strength is high, and the strength of the flexible film will be poor when the toughness is high.
Aiming at the problems, the invention provides the water-in-water coating which has appropriate strength, high toughness and deformation and can be brushed.
The technical scheme is as follows:
a water-in-water coating is prepared from basic paint, granulating liquid and continuous phase;
the base paint is prepared from the following raw materials in percentage by mass: 50-80% of water, 0.5-1.2% of first hydroxyethyl cellulose, 5-20% of first emulsion, 0.9-35% of pigment and filler and 0.2-0.6% of first alkali swelling thickener;
the granulation liquid is prepared from the following raw materials in percentage by mass: 90 to 95 percent of water and 4.8 to 10 percent of protective glue containing magnesium lithium silicate;
the continuous phase is prepared from the following raw materials in percentage by mass: 35 to 69.7 percent of water, 0.2 to 1 percent of second hydroxyethyl cellulose, 30 to 60 percent of second emulsion and 0.1 to 0.4 percent of second alkali swelling thickener;
the viscosity of the first hydroxyethyl cellulose is greater than the viscosity of the second hydroxyethyl cellulose;
the first emulsion and the second emulsion are selected from acrylate emulsions, the first emulsion and the protective glue containing the magnesium lithium silicate have reactivity, and the second emulsion and the protective glue containing the magnesium lithium silicate have no reactivity;
the preparation method of the water-in-water coating comprises the following steps:
adding the granulating liquid into the base paint, and stirring to prepare colored particles;
mixing the color particles and the continuous phase according to the mass ratio (0.5-2.5) to 1;
the mass ratio of the base paint to the granulating liquid is more than 3: 1.
In one embodiment, the viscosity of the first hydroxyethyl cellulose aqueous solution containing the first hydroxyethyl cellulose at 25 ℃ and having a mass concentration of the first hydroxyethyl cellulose of 1% is 5000-15000 cps. Preferably, the first hydroxyethyl cellulose is asiatland HE-10K.
In one embodiment, the viscosity of the second hydroxyethyl cellulose aqueous solution containing the second hydroxyethyl cellulose at 25 ℃ and having a mass concentration of 1% of the second hydroxyethyl cellulose is 1500 cps to 2500 cps. Preferably, the second hydroxyethyl cellulose is ashlar 250 HBR.
In one embodiment, the first emulsion has a viscosity of 100 mPs to 3000 mPs at 25 ℃ and a solids content of 45% + -5%. Preferably, the first emulsion is a wanhua 8029 emulsion.
In one embodiment, the viscosity of the second emulsion is less than or equal to 500mP & s at 25 ℃, and the solid content is 36% +/-8%. Preferably, the second emulsion is a wanhua 8087 emulsion.
Particularly preferably, in one embodiment, the Shilan HE-10K, the Shilan 250HBR cellulose, the Wanhua 8029 emulsion, the Wanhua 8087 emulsion and the TT935 alkali swelling thickener are adopted, the raw materials are cooperated, the protective glue is not required to be added into the base paint and the continuous phase, and the finally obtained water-in-water coating achieves a very good balance of strength and toughness and can be deformed and brushed.
In one embodiment, the pigment and filler comprises 0.2-10% of titanium dioxide, 0.5-15% of pearl powder and 0.2-10% of kaolin by mass percentage of the base paint, or the pigment and filler comprises 0.2-10% of titanium dioxide, 0.5-15% of pearl powder and 0.2-10% of diatomite by mass percentage. These pigments and fillers may provide suitable strength, as well as for tinting. The pearl powder is VR711B from Guangdong Venuo pearl pigment company, the titanium dioxide is R996 titanium dioxide from python, and the kaolin is calcined kaolin, such as DB80 from Sanfeng chemical industry.
In one embodiment, the raw materials for preparing the base paint further comprise a dispersing agent, a wetting agent, a first defoaming agent, a first film-forming assistant, a first multifunctional assistant and a first preservative.
In one embodiment, the base paint is prepared from the following raw materials in percentage by mass: 50-80% of water, 0.5-1.2% of first hydroxyethyl cellulose, 5-20% of first emulsion, 0.9-35% of pigment and filler, 0.2-0.6% of first alkali swelling thickener, 0.1-0.4% of dispersant, 0.1-0.4% of wetting agent, 0.1-0.4% of first defoaming agent, 0.2-2% of first film forming auxiliary agent, 0.05-0.2% of first multifunctional auxiliary agent and 0.2-1% of first preservative.
Preferably, the base paint is prepared from the following raw materials in percentage by mass: 60-78% of water, 0.8-1.2% of first hydroxyethyl cellulose, 8-20% of first emulsion, 5-25% of pigment and filler, 0.2-0.6% of first alkali swelling thickener, 0.1-0.4% of dispersant, 0.1-0.4% of wetting agent, 0.1-0.4% of first antifoaming agent, 0.2-2% of first film-forming assistant, 0.05-0.2% of first multifunctional assistant and 0.2-1% of first preservative. The use amount of cellulose is increased, which is more beneficial to improving the toughness and strength of the coating.
Preferably, the dispersant is a sodium polycarboxylate dispersant. For example, the dispersant is Gaotai ECODIS P30 or Sannopraceae SN-5040.
Preferably, the wetting agent is selected from at least one of polyoxyethylene alkylphenol ethers, polyoxyethylene fatty alcohol ethers, polyoxyethylene polyoxypropylene block copolymers, polyoxyethylene alkylaryl ethers, polyethoxy nonylphenol, or nonionic alkoxylated alcohol surfactants. For example, the humectant is LCN 407 from clariant.
Preferably, the first anti-foaming agent is a silicone surfactant. For example, the first antifoaming agent is NXZ of nopraceae.
Preferably, the first film forming aid is an alcohol ester twelve.
Preferably, the first multifunctional auxiliary agent is Dow AMP-95.
Preferably, the first preservative is MBS 5050.
In one embodiment, the raw materials for preparing the granulating liquid further comprise a second preservative.
In one embodiment, the granulation liquid is prepared from the following raw materials in percentage by mass: 90-95% of water, 4.8-10% of protective glue containing magnesium lithium silicate and 0.2-0.5% of second preservative.
Further, the granulating liquid is prepared from the following raw materials in percentage by mass: 91-94.5% of water, 5-8.7% of protective glue containing lithium magnesium silicate and 0.3-0.5% of second preservative.
Preferably, the second preservative is MBS 5050.
In one embodiment, the raw materials for preparing the continuous phase further comprise a second defoaming agent, a second film forming aid, an antifreezing agent, a second multifunctional aid and a third corrosion inhibitor.
In one embodiment, the continuous phase is prepared from the following raw materials in percentage by mass: 35-67% of water, 0.2-1% of second hydroxyethyl cellulose, 30-60% of second emulsion, 0.1-0.4% of second alkali swelling thickener, 0.1-0.5% of second defoaming agent, 1.5-4% of second film forming auxiliary agent, 0.3-1.2% of antifreezing agent, 0.05-0.4% of second multifunctional auxiliary agent and 0.2-0.6% of third corrosion inhibitor.
Preferably, the continuous phase is prepared from the following raw materials in percentage by mass: 38-65% of water, 0.5-1% of second hydroxyethyl cellulose, 32-55% of second emulsion, 0.1-0.4% of second alkali swelling thickener, 0.1-0.5% of second defoaming agent, 1.5-4% of second film forming auxiliary agent, 0.3-1.2% of antifreezing agent, 0.05-0.4% of second multifunctional auxiliary agent and 0.2-0.6% of third corrosion inhibitor. The use amount of the second hydroxyethyl cellulose is increased, so that the toughness and the strength of the coating are improved.
Preferably, the second anti-foaming agent is a silicone surfactant. For example, the second antifoaming agent is NXZ of nopinaceae.
Preferably, the second film-forming aid is an alcohol ester twelve.
Preferably, the second multifunctional auxiliary agent is Dow AMP-95.
Preferably, the third corrosion inhibitor is MBS 5050.
Preferably, the antifreeze agent is ethylene glycol.
The invention also provides a preparation method of the water-in-water coating, which comprises the following steps:
(1) preparing a base paint:
mixing the first hydroxyethyl cellulose, the first emulsion, the first alkali swelling thickener and water;
(2) preparing a granulating liquid:
mixing the protective glue containing the magnesium lithium silicate with water;
(3) preparing color particles:
and adding the granulating liquid into the base paint, and stirring and granulating to obtain the colored particles, wherein the mass ratio of the base paint to the granulating liquid is more than 3: 1. The direct stirring dispersion granulation is adopted instead of the traditional pre-cutting or granulator operation, so that the problems that color points are too hard and cannot deform can be avoided. Preferably, the mass ratio of the base paint to the granulating liquid is (4-9): 1.
(4) Preparation of the continuous phase:
mixing the second hydroxyethyl cellulose, the second emulsion, the second alkali swelling thickener, and water.
(5) Preparing the water-in-water paint:
and (3) carrying out color particle preparation on the obtained color particles: the continuous phase is mixed according to the proportion of (0.5-2.5) to 1, and the water-in-water paint capable of adjusting color externally can be prepared. The proportion can avoid the problems that the color points are too hard and cannot deform.
Preferably, the preparation method of the base paint comprises the following steps of preparing a formula containing water, first hydroxyethyl cellulose, a dispersing agent, a wetting agent, a first defoaming agent, a first film forming auxiliary agent, a first multifunctional auxiliary agent, a pigment and filler, a first emulsion, a first alkali swelling thickener and a first preservative;
adding water and first hydroxyethyl cellulose into a dispersion cylinder, and dispersing at a low speed for 5 min; then adding a dispersing agent, a wetting agent, a first defoaming agent, a first film forming aid and a first multifunctional aid, and dispersing at a medium speed for 5 min; then adding titanium dioxide, kaolin and diatomite or pearl powder, and dispersing at high speed for 10 min; then adding the first emulsion, and dispersing at medium speed for 5 min; then adding a first alkali swelling thickener added with water, and dispersing at medium speed for 5 min; and finally, adding a first preservative, and dispersing at a low speed for 10min to prepare the base paint.
Preferably, the preparation method of the formula of the granulating liquid containing water, the protective colloid containing magnesium lithium silicate and the second preservative comprises the following steps:
adding water and protective glue containing magnesium lithium silicate into a dispersion cylinder, and dispersing at high speed for 60 min; then adding a second preservative, and dispersing at medium speed for 5min to obtain the granulating liquid.
Preferably, the preparation method of the formula containing water, second hydroxyethyl cellulose, second emulsion, second defoaming agent, second film-forming auxiliary agent, antifreezing agent, second multifunctional auxiliary agent, second alkali swelling thickener and third corrosion inhibitor in the continuous phase comprises the following steps;
adding water and second hydroxyethyl cellulose into a dispersion cylinder, dispersing for 5min at a low speed, adding a second defoaming agent, a second film-forming auxiliary agent, an antifreezing agent, a second multifunctional auxiliary agent and a third corrosion inhibitor, and dispersing for 5min at a low speed; and then adding a second emulsion, dispersing at a low speed for 5min, finally adding a water-blended second alkali swelling thickener, and dispersing at a medium speed for 15min to obtain a continuous phase.
In the invention, the rotating speed of low-speed dispersion is 300rpm-500rpm, the rotating speed of medium-speed dispersion is 500rpm-800rpm, and the rotating speed of high-speed dispersion is 800rpm-1200 rpm.
The invention also provides a brushable decorative coating, which is prepared from the water-in-water coating.
In one embodiment, the brushable decorative coating is a building interior wall decorative coating.
The following is a detailed description of the embodiments.
The following examples and comparative examples used the following starting materials:
the first alkali swelling thickener and the second alkali swelling thickener are both TT935, the dispersant is Gaotai ECODIS P30, the wetting agent is LCN 407 of Kelaien, the first defoamer and the second defoamer are both NXZ of Nopulidae, the first multifunctional additive and the second multifunctional additive are both Dow AMP-95, the antifreeze is ethylene glycol, the first preservative, the second preservative and the third preservative are all MBS5050, the pearl powder is VR711B of Guangdong Weinuo pearl pigment Co., Ltd, the titanium dioxide is R996 titanium dioxide of python, the kaolin is DB80 of Sanfeng chemical engineering, and the protective glue is S482 of German ByK.
Example 1
The embodiment provides a water-in-water coating and a preparation method thereof.
(1) The preparation raw materials of the water-in-water coating are as follows:
the preparation method comprises the following steps of:
secondly, preparing the granulating liquid by mass percent from the following raw materials:
91.6 percent of water,
Protective glue 8% and
0.4% of second preservative.
Thirdly, according to the mass percentage, the preparation raw materials of the continuous phase are as follows:
(2) preparing the water-in-water coating:
preparing a base paint:
adding water and first hydroxyethyl cellulose into a dispersion cylinder, and dispersing at a low speed for 5 min; then adding a dispersing agent, a wetting agent, a first defoaming agent, a first film forming aid and a first multifunctional aid, and dispersing at a medium speed for 5 min; then adding titanium dioxide, pearl powder and kaolin, and dispersing for 10min at high speed; then adding the first emulsion, and dispersing at medium speed for 5 min; then adding a first alkali swelling thickener added with water, and dispersing at medium speed for 5 min; and finally, adding the first preservative, and dispersing at a low speed for 10min to prepare the base paint.
Preparing a granulating liquid:
adding water and protective glue containing magnesium lithium silicate into a dispersion cylinder, and dispersing for 60min at a high speed; then adding a second preservative, and dispersing at medium speed for 5min to obtain the granulation liquid.
And thirdly, granulating:
and adding the granulating liquid into the base paint, and stirring and granulating to obtain the colored particles, wherein the mass ratio of the base paint to the granulating liquid is 4: 1.
Preparing a continuous phase:
adding water and second hydroxyethyl cellulose into a dispersion cylinder, dispersing for 5min at a low speed, adding a second defoaming agent, a second film forming aid, an antifreezing agent, a second multifunctional aid and a third corrosion inhibitor, and dispersing for 5min at a low speed; and then adding a second emulsion, dispersing at a low speed for 5min, finally adding a water-blended second alkali swelling thickener, and dispersing at a medium speed for 15min to obtain a continuous phase.
Preparing the water-in-water coating:
and (4) mixing the color particles obtained in the step (iii) with the continuous phase obtained in the step (iv) according to the ratio of 2.5:1, and uniformly stirring to obtain the water-in-water coating.
Tests show that the water-in-water coating has the characteristics of high strength of the color particles, and difficulty in breakage and pasting of the color particles during construction, and shows very high strength. The effect after construction is shown in figure 1.
Example 2
The embodiment provides a water-in-water coating and a preparation method thereof. Compared with the example 1, the raw materials and the mixture ratio of the base paint, the granulating liquid and the continuous phase are not changed, and the mass ratio of the colored particles to the continuous phase is also not changed, and the difference is that the mass ratio of the base paint to the granulating liquid is 3:1 when the colored particles are prepared.
Tests show that the water-in-water coating has the characteristics of high strength of the color particles, and difficulty in breakage and pasting of the color particles during construction, and shows very high strength, and when a brush or other tools are used, the water-in-water coating can deform to a certain extent to produce different and abundant effects, and the color particles cannot be damaged and show good toughness, but the toughness of the color particles is reduced to some extent compared with that of the water-in-water coating in example 1.
Example 3
The embodiment provides a water-in-water coating and a preparation method thereof. The difference compared to example 1 is that the base paint has 73.2% water and 0.5% first hydroxyethyl cellulose.
Tests show that the water-in-water coating has the characteristics of high strength of the color particles, and difficulty in breakage and pasting of the color particles during construction, and shows very high strength, but the strength is reduced to some extent compared with that of the embodiment 1, and when a brush or other tools are used, the water-in-water coating can generate certain deformation and generate different and abundant effects, and the color particles can not be damaged and show very good toughness.
Example 4
The embodiment provides a water-in-water coating and a preparation method thereof. The difference compared to example 1 is that the first emulsion in the base paint is LR-656 emulsion from hengshan corporation and the second emulsion in the continuous phase is LR-6338 emulsion.
Tests show that the water-in-water coating has the characteristics of high strength of the color particles, and difficulty in breakage and pasting of the color particles during construction, and shows very high strength.
Example 5
The embodiment provides a water-in-water coating and a preparation method thereof. The difference compared to example 1 is that the first hydroxyethyl cellulose in the base paint is lentian B100K cellulose and the second hydroxyethyl cellulose in the continuous phase is plis 330 of asiatlan.
Tests show that the water-in-water coating has the characteristics of high strength of the color particles, and difficulty in breakage and pasting of the color particles during construction, and shows very high strength. But both strength and toughness were inferior compared to example 1.
Example 6
The embodiment provides a water-in-water coating and a preparation method thereof. Compared with the example 1, the raw materials and the mixture ratio of the base paint, the granulating liquid and the continuous phase are not changed, the mass ratio of the base paint to the granulating liquid is not changed, and the mass ratio of the color particles to the continuous phase is not changed.
Tests show that in the manufacturing process of the water-in-water coating, more colored grains are obviously over-drawn and are not uniform in size, so that the using effect is influenced.
Example 7
The embodiment provides a water-in-water coating and a preparation method thereof.
(1) The preparation raw materials of the water-in-water coating are as follows:
the preparation method comprises the following steps of:
secondly, preparing the granulation liquid from the following raw materials in percentage by mass:
93 percent of water,
6.6% of protective adhesive and
0.4% of second preservative.
Thirdly, according to mass percentage, the preparation raw materials of the continuous phase are as follows:
(2) preparing the water-in-water coating:
the preparation method is the same as that of the example 1, when the colored particles are prepared, the mass ratio of the base paint to the granulating liquid is 8:1, and when the water-in-water coating is prepared, the mass ratio of the colored particles to the continuous phase is 1: 1.
Tests show that the water-in-water paint has the characteristics of high strength of the color particles, and difficulty in breakage and pasting of the color particles during construction, and shows very high strength, and when a brush or other tools are used, the water-in-water paint can deform to a certain extent to produce different and rich effects, and the color particles cannot be damaged, so that the water-in-water paint shows very good toughness. The overall performance exhibited is better.
Comparative example 1
This comparative example provides a water-in-water coating and a method of making the same. The difference compared to example 1 is that the addition of the second hydroxyethyl cellulose was omitted from the continuous phase and the amount of water added to the continuous phase was 47.6%.
Tests show that the strength of the color particles of the water-in-water coating is poor, and the water-in-water coating is easy to be broken and burnt during construction and cannot meet the use requirement. The effect is shown in figure 2.
Comparative example 2
This comparative example provides a water-in-water coating and a method of making the same. In comparison with example 1, the type of hydroxyethyl cellulose in the base lacquer was changed to HBR250 cellulose and the type of hydroxyethyl cellulose in the continuous phase was changed to HE-10K cellulose.
Tests show that the water-in-water paint has the advantages of easy and pasty color particles, high viscosity and difficult use.
Comparative example 3
This comparative example provides a water-in-water coating and a method of making the same. Compared with example 1, the base paint is added with two types of hydroxyethyl cellulose with different viscosity ranges, the addition amount of water is 72.5 percent, the addition amount of HE-10K cellulose is 0.8 percent, the addition amount of HBR250 cellulose is 0.4 percent, the addition of the hydroxyethyl cellulose in the continuous phase is omitted, and the addition amount of the water in the continuous phase is 47.6 percent.
The preparation process is identical to that of example 1, except that two hydroxyethylcelluloses are added during the preparation of the base paint, while the addition of hydroxyethylcellulose is omitted during the preparation of the continuous phase.
Tests show that the strength of the color particles of the water-in-water coating is poor, and the water-in-water coating is easy to be broken and burnt during construction and cannot meet the use requirement.
Comparative example 4
The present comparative example provides a water-in-water coating and a method of making the same. The difference compared to example 1 is that the base paint has 72.5% water and the first alkali swelling thickener is 1%.
Tests show that the water-in-water paint has poor color particle toughness and is fragile and easy to paste in the deformation process.
Comparative example 5
This comparative example provides a water-in-water coating and a method of making the same. The difference compared to example 1 is that the base paint has 73.5% water and 0.2% first hydroxyethyl cellulose.
Tests show that the water-in-water coating has poor color particle strength, difficult granulation and easy friability and pasting in the construction process.
Comparative example 6
This comparative example provides a water-in-water coating and a method of making the same. Compared to example 1, the amount of water added to the continuous phase was 47.9% and the amount of the second alkali swelling thickener added was 1%.
Tests show that the strength of the color particles of the water-in-water coating is poor, and the color particles become small after the continuous phase is added, and are easy to be pasted easily in use.
Comparative example 7
The present comparative example provides a water-in-water coating and a method of making the same. Compared with the example 1, the raw materials and the mixture ratio of the base paint, the granulating liquid and the continuous phase are not changed, and the mass ratio of the colored particles to the continuous phase is also not changed, wherein the difference is that the mass ratio of the base paint to the granulating liquid is 1:1 when the colored particles are prepared.
Tests show that the water-in-water paint has poor color particle toughness and is fragile and easy to be burnt in the deformation process during construction.
Comparative example 8
This comparative example provides a water-in-water coating and a method of making the same. The difference compared to example 1 is that the base paint had 62.9% water added and in addition 10% protective gum was added to the base paint. In the preparation method, when the base paint is prepared, after the first alkali swelling thickener is added and before the first preservative is added, the protective glue is also added into the dispersion cylinder.
Tests show that the water-in-water paint has high strength of color particles, but poor toughness of dots, and the color particles can be pasted or cracked when deformed by a brush or other tools.
Comparative example 9
The present comparative example provides a water-in-water coating and a method of making the same. The difference is that the addition of water in the continuous phase is 45.1%, and in addition, 2% of protective glue is added in the continuous phase. In the preparation method, when the continuous phase is prepared, after the second alkali swelling thickener is added, the protective glue is also added into the dispersion cylinder, and the continuous phase is dispersed at a medium speed.
Tests show that the water-in-water paint has high strength of color particles, but poor toughness of dots, and the color particles can be pasted or cracked when deformed by a brush or other tools.
Comparative example 10
The present comparative example provides a water-in-water coating and a method of making the same. The difference compared to example 1 is that the base paint and the emulsion in the continuous phase are both a Wanhua 8029 emulsion.
Tests show that the continuous phase emulsion of the water-in-water coating reacts with the protective glue to thicken and cannot be used.
Comparative example 11
The present comparative example provides a water-in-water coating and a method of making the same. The difference compared to example 1 is that the base paint and the emulsion in the continuous phase are both warfarin 8087 emulsions.
Tests show that the water-in-water paint color particles cannot be molded and cannot be prepared in the production process.
Comparative example 12
The present comparative example provides a water-in-water coating and a method of making the same. Compared with the example 1, the raw materials and the mixture ratio of the base paint, the granulating liquid and the continuous phase are not changed, the mass ratio of the base paint to the granulating liquid is not changed, and the mass ratio of the color particles to the continuous phase is not changed.
Tests show that the water-in-water paint has irregular spherical particles with large thickness, general toughness and difficult deformation by a tool, and cannot meet the requirement.
It can be seen that the water-in-water paint in examples 1 to 7 and comparative examples 1 to 12 was applied by brush coating, and it was found that examples 1 to 7 exhibited good strength and toughness at the time of application; while comparative examples 1 to 12 had either insufficient strength or insufficient toughness to meet the use requirements.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, which is convenient for specific and detailed understanding of the technical solutions of the present invention, but the present invention should not be construed as being limited to the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. It should be understood that the technical solutions provided by the present invention, which are obtained by logical analysis, reasoning or limited experiments, are within the scope of the present invention as set forth in the appended claims. Therefore, the protection scope of the present patent shall be subject to the content of the appended claims, and the description and drawings can be used to explain the content of the claims.
Claims (10)
1. The water-in-water coating is characterized in that the preparation raw materials comprise base paint, granulating liquid and a continuous phase;
the base paint is prepared from the following raw materials in percentage by mass: 50-80% of water, 0.5-1.2% of first hydroxyethyl cellulose, 5-20% of first emulsion, 0.9-35% of pigment and filler and 0.2-0.6% of first alkali swelling thickener;
the granulation liquid is prepared from the following raw materials in percentage by mass: 90 to 95 percent of water and 4.8 to 10 percent of protective glue containing magnesium lithium silicate;
the continuous phase is prepared from the following raw materials in percentage by mass: 35 to 69.7 percent of water, 0.2 to 1 percent of second hydroxyethyl cellulose, 30 to 60 percent of second emulsion and 0.1 to 0.4 percent of second alkali swelling thickener;
the base paint and the continuous phase do not contain protective glue;
the viscosity of the first hydroxyethyl cellulose is greater than the viscosity of the second hydroxyethyl cellulose;
the first emulsion and the second emulsion are selected from acrylate emulsions, the first emulsion and the protective glue containing the magnesium lithium silicate have reactivity, and the second emulsion and the protective glue containing the magnesium lithium silicate have no reactivity;
the viscosity of a first hydroxyethyl cellulose aqueous solution which contains the first hydroxyethyl cellulose at 25 ℃ and has a mass concentration of 1% of the first hydroxyethyl cellulose is 5000-15000 centipoises;
the viscosity of a second hydroxyethyl cellulose aqueous solution which contains the second hydroxyethyl cellulose at 25 ℃ and has the mass concentration of 1% is 1500-2500 centipoises;
the preparation method of the water-in-water coating comprises the following steps:
adding the granulating liquid into the base paint, and stirring to prepare colored particles;
mixing the color particles and the continuous phase according to the mass ratio (0.5-2.5) to 1;
the mass ratio of the base paint to the granulating liquid is more than 3: 1.
2. The water-in-water coating of claim 1,
the viscosity of the first emulsion at 25 ℃ is 100 mPa & s-3000 mPa & s, and the solid content is 45% +/-5%;
the viscosity of the second emulsion at 25 ℃ is less than or equal to 500mPa & s, and the solid content is 36% +/-8%.
3. The water-in-water coating of claim 2, wherein the first hydroxyethyl cellulose is ashlar HE-10K, the second hydroxyethyl cellulose is ashlar 250 HBR;
the first emulsion is a Wanhua 8029 emulsion, and the second emulsion is a Wanhua 8087 emulsion;
the first alkali swelling thickener and the second alkali swelling thickener are both TT 935.
4. The water-in-water paint as claimed in claim 1, wherein the pigment and filler comprises 0.2-10% of titanium dioxide, 0.5-15% of pearl powder and 0.2-10% of kaolin, or the pigment and filler comprises 0.2-10% of titanium dioxide, 0.5-15% of pearl powder and 0.2-10% of diatomite.
5. The water-in-water coating material as claimed in claim 1, wherein the base paint is prepared from a raw material which further comprises a dispersing agent, a wetting agent, a first defoaming agent, a first film-forming aid, a first multifunctional aid and a first preservative;
the raw materials for preparing the granulating liquid also comprise a second preservative;
the preparation raw materials of the continuous phase also comprise a second defoaming agent, a second film forming aid, an antifreezing agent, a second multifunctional aid and a third corrosion inhibitor.
6. The water-in-water coating as claimed in claim 5, wherein the base paint is prepared from the following raw materials in percentage by mass: 50-80% of water, 0.5-1.2% of first hydroxyethyl cellulose, 5-20% of first emulsion, 0.9-35% of pigment and filler, 0.2-0.6% of first alkali swelling thickener, 0.1-0.4% of dispersant, 0.1-0.4% of wetting agent, 0.1-0.4% of first antifoaming agent, 0.2-2% of first film-forming assistant, 0.05-0.2% of first multifunctional assistant and 0.2-1% of first preservative;
the granulation liquid is prepared from the following raw materials in percentage by mass: 90-95% of water, 4.8-10% of protective glue containing magnesium lithium silicate and 0.2-0.5% of second preservative;
the continuous phase is prepared from the following raw materials in percentage by mass: 35-67% of water, 0.2-1% of second hydroxyethyl cellulose, 30-60% of second emulsion, 0.1-0.4% of second alkali swelling thickener, 0.1-0.5% of second defoaming agent, 1.5-4% of second film forming auxiliary agent, 0.3-1.2% of antifreezing agent, 0.05-0.4% of second multifunctional auxiliary agent and 0.2-0.6% of third corrosion inhibitor.
7. The water-in-water coating as claimed in claim 6, wherein the base paint is prepared from the following raw materials in percentage by mass: 60-78% of water, 0.8-1.2% of first hydroxyethyl cellulose, 8-20% of first emulsion, 5-25% of pigment and filler, 0.2-0.6% of first alkali swelling thickener, 0.1-0.4% of dispersant, 0.1-0.4% of wetting agent, 0.1-0.4% of first defoaming agent, 0.2-2% of first film forming auxiliary agent, 0.05-0.2% of first multifunctional auxiliary agent and 0.2-1% of first preservative;
the granulation liquid is prepared from the following raw materials in percentage by mass: 91-94.5% of water, 5-8.7% of protective glue containing lithium magnesium silicate and 0.3-0.5% of second preservative;
the continuous phase is prepared from the following raw materials in percentage by mass: 38-65% of water, 0.5-1% of second hydroxyethyl cellulose, 32-55% of second emulsion, 0.1-0.4% of second alkali swelling thickener, 0.1-0.5% of second defoamer, 1.5-4% of second film forming aid, 0.3-1.2% of antifreeze, 0.05-0.4% of second multifunctional aid and 0.2-0.6% of third preservative.
8. The water-in-water coating of claim 6, wherein the dispersant is a sodium polycarboxylate dispersant; and/or the presence of a gas in the gas,
the wetting agent is selected from at least one of polyoxyethylene alkylphenol ether, polyoxyethylene fatty alcohol ether, polyoxyethylene polyoxypropylene block copolymer, polyoxyethylene alkylaryl ether, polyethoxy nonylphenol or nonionic alkoxylated alcohol surfactant; and/or the presence of a gas in the atmosphere,
the first and second defoaming agents are selected from silicone surfactants; and/or the presence of a gas in the atmosphere,
the first film forming additive and the second film forming additive are both alcohol ester twelve; and/or the presence of a gas in the atmosphere,
the first multifunctional additive and the second multifunctional additive are both Dow AMP-95; and/or the presence of a gas in the atmosphere,
the antifreezing agent is ethylene glycol; and/or the presence of a gas in the gas,
the first preservative, the second preservative and the third preservative are all MBS 5050.
9. The water-in-water coating according to any one of claims 1 to 8, wherein the preparation method of the base paint comprises the following steps:
mixing the raw materials for preparing the base paint;
the preparation method of the granulating liquid comprises the following steps:
mixing raw materials for preparing the granulating liquid;
the preparation method of the continuous phase comprises the following steps:
the raw materials for preparing the continuous phase are mixed.
10. A brushable decorative paint, characterized in that it is prepared from a water-in-water paint as claimed in any one of claims 1 to 9.
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