CN114517025B - Structural color pigment, preparation method thereof and high-color-retention building coating - Google Patents
Structural color pigment, preparation method thereof and high-color-retention building coating Download PDFInfo
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- CN114517025B CN114517025B CN202210298296.4A CN202210298296A CN114517025B CN 114517025 B CN114517025 B CN 114517025B CN 202210298296 A CN202210298296 A CN 202210298296A CN 114517025 B CN114517025 B CN 114517025B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
Abstract
The application relates to the technical field of building paint, and particularly discloses a structural color pigment and a preparation method thereof, and a high-color retention building paint. The structural color pigment is prepared by sequentially coating the surface of a base material with a layer structure, wherein the layer structure comprises an A layer with the refractive index being more than 1.8 and a B layer with the refractive index being less than or equal to 1.8, the A layer and the B layer are sequentially and continuously arranged, the A layer is at least one layer, and the thickness of the A layer is smaller than that of the B layer. The structural color pigment is applied to the building paint, and the color retention and weather resistance of the building can be improved through the mutual matching of the structural color pigment, the aqueous acrylic emulsion and the titanium pigment, and delta E is less than or equal to 0.58.
Description
Technical Field
The application relates to the technical field of building paint, in particular to structural color pigment and a preparation method thereof, and high-color retention building paint.
Background
Color retention is a basic index of architectural coatings, and color retention is closely related to their decorative effect. In conventional architectural paints, pigments are color-imparting substances, which can be classified into organic pigments and inorganic pigments according to their composition, and both pigments exhibit different colors by selectively absorbing light. Generally, organic pigments have high tinting strength, bright color, complete color spectrum and small relative density, but have poor performances in heat resistance, weather resistance, hiding power and the like; while inorganic pigment has better weather resistance, but has dark color, low saturation and poorer decorative effect.
Therefore, a pigment is needed to provide the architectural coating with good decorative effect and high weather resistance.
Disclosure of Invention
In order to ensure that the building paint has higher color retention and weather resistance, the application provides a structural color pigment and a preparation method thereof, and the building paint has high color retention.
In a first aspect, the application provides a structural color pigment, which is prepared by sequentially coating a layer structure on the surface of a substrate outwards, wherein the layer structure comprises an A layer with a refractive index of more than 1.8 and a B layer with a refractive index of less than or equal to 1.8, the A layer and the B layer are sequentially and continuously arranged, at least one layer of A layer is arranged, and the thickness of the A layer is smaller than that of the B layer;
wherein the substrate is inorganic glass, stainless steel flake or organic glass, and the particle size of the substrate is 2-5 mu m.
Structural color is the color produced by interference of light rays caused by the material structure, and bright wings or feathers of many animals such as butterflies, turkeys and the like are produced by the structural color. Unlike pigment colors, which are produced by absorption by a plurality of individual molecules, the structural dimensions of the resulting structural color are typically between tens to hundreds of nanometers, and thus structural colors are far better than pigment colors in terms of weatherability.
The structural color pigment is prepared by modification or special treatment, and is mainly prepared by coating an A layer and a B layer with different refractive indexes on the surface of a substrate with lower refractive index. In the application, the refractive index of the base material is 1.4-1.6, and the base material is generally inorganic glass, stainless steel flake or organic glass; wherein the stainless steel scales are mainly made of 304 and 316 stainless steel. The refractive index of the A layer is greater than 1.8, and the A layer is generally metal oxide such as titanium dioxide, zirconium dioxide, tin dioxide or a mixture thereof; the refractive index of the B layer is less than or equal to 1.8, and the B layer is generally silicon dioxide or aluminum oxide or a mixture of the silicon dioxide and the aluminum oxide. The base material is covered with the A layer and the B layer with different layers, so that light can generate single-layer film interference or multi-layer film interference, the color of the building coating is more vivid, and the building coating has higher color retention and weather resistance.
Preferably, the number of the layers of the layer A is 3.
In the present application, the number of layers of the layer a is at least one, that is, the structural color pigment includes a substrate and the layer a, or the structural color includes a substrate, the layer a, and the layer B. The number of the A layers may be 2 or 3 or more. In the application, the number of layers of the layer A is 3, the structural color pigment comprises a substrate, a layer A, a layer B and a layer A, or the structural color pigment comprises a substrate, a layer A, a layer B, a layer A and a layer B.
When the number of layers of the layer A in the structural color pigment is 3, the structural color pigment is matched with the aqueous acrylic emulsion and the titanium pigment, the color retention and weather resistance of the building coating are high, and delta E is less than or equal to 0.40.
In general, the more layers a and B, the stronger the interference, and the higher the saturation and brightness of the reflected structural color. However, as the number of layers of the A layer and the B layer increases, when the number of layers increases to a certain value, the reflectivity gradually decreases, the use effect of the building coating is directly affected, and the color retention and weather resistance of the building coating are reduced.
Preferably, the thickness of the layer A is 100-150nm, and the thickness of the layer B is 400-500nm.
In the application, the thickness of the layer A and the layer B is controlled, the thickness of the layer B is required to be larger than that of the layer A, and the layer B can absorb ultraviolet rays better after being matched with the aqueous acrylic emulsion and the titanium pigment, so that the corrosion of moisture is reduced, and the color retention and weather resistance of the building coating are improved.
The thickness of the A layer can be 100nm, 105nm, 110nm, 120nm, 130nm, 135nm, 140nm, 145nm, 150nm. The thickness of the B layer may be 400nm, 360nm, 370nm, 380nm, 390nm, 400nm, 420nm, 450nm, 460nm, 470nm, 480nm, 490nm, 500nm.
In a specific embodiment, the a layer has a thickness of 130nm and the B layer has a thickness of 400nm.
In a second aspect, the present application provides a method for preparing a structural color pigment, comprising the steps of,
s1: adding the substrate into a mixed solution of water and ethanol, adding raw materials for preparing the layer A, stirring, filtering to obtain a substrate mixture, and calcining the substrate mixture at 600 ℃ for 3-3.5h to obtain a substrate with a coated layer A, wherein the weight ratio of water to ethanol is 2:1;
s2: and adding the base material with the coating layer A into the raw material for preparing the layer B, stirring for 15-20min, standing, filtering to obtain a semi-finished product of the structural color pigment, and calcining the semi-finished product at 600 ℃ for 3-3.5h to obtain the structural color pigment.
In the application, lead toBy repeating steps S1 and S2, a structural color pigment containing different numbers of layers can be obtained. The thickness of the A layer is controlled by the stirring time in the step S1 and can be controlled by an empirical formula d SiO2 Preliminary calculation of stirring time was performed with = (2.0-2.3) t, where d is thickness (nm) and t is stirring time (min). The thickness of the B layer is adjusted by the standing time in the step S2 and is calculated by an empirical formula d SiO2 Calculate the rest time = (0.95-1.2) t, where d is the thickness (nm) and t is the rest time (min).
In a third aspect, the application provides a high-color retention building coating, which comprises the following raw materials, by weight, 30-60 parts of aqueous acrylic emulsion, 10-30 parts of titanium dioxide, 10-30 parts of filler, 2-8 parts of structural color pigment, 1.5-4.5 parts of auxiliary agent and 20-30 parts of water.
In the application, the aqueous acrylic emulsion has excellent water resistance and weather resistance, and has excellent dispersibility on structural color pigment. The aqueous acrylic emulsion does not contain a surfactant used for common acrylic emulsion and has a hydrophobic group with special design. Therefore, the aqueous acrylic emulsion has excellent moisture resistance, and can prevent water molecules from penetrating the protected object after the paint film is dried, thereby achieving the effects of water resistance and moisture resistance. The molecular structure of the aqueous acrylic emulsion adopts a monomer structure with stable ultraviolet rays, so that the influence of the ultraviolet rays on the emulsion is reduced, and the substrate in the structural color pigment is effectively protected. The water-based acrylic emulsion and various water-based color pastes have good compatibility, so that the functions of the titanium pigment and the structural color pigment are exerted to the maximum extent, and the building coating has bright color and higher weather resistance.
The building coating prepared by the application does not comprise quartz sand and other sand, and is prepared by mixing aqueous acrylic emulsion, titanium pigment, structural color pigment and other raw materials; and then the building coating is applied to the inner wall and the outer wall of the building wall, so that a smooth coating layer can be formed, and the building wall is protected from corrosion.
Preferably, the high-color-retention building coating comprises the following raw materials in parts by weight, 40-60 parts of aqueous acrylic emulsion, 20-30 parts of titanium dioxide and 2-5 parts of structural color pigment.
In a specific embodiment, 40 parts of aqueous acrylic emulsion, 20 parts of titanium dioxide and 5 parts of the structural color pigment disclosed by the application.
Preferably, the auxiliary agent consists of the following raw materials, by weight, 0.03-0.05 part of a defoaming agent, 0.34-0.38 part of a dispersing agent, 0.12-0.17 part of a wetting agent, 0.1-0.3 part of an antifreezing agent, 0.01-0.03 part of a preservative, 0.33-0.38 part of a thickening agent, 0.1-0.2 part of a pH regulator and 1-2 parts of a film forming auxiliary agent.
In the application, the auxiliary agent is a functional raw material, so that the building material has better performance; for example, defoamers can reduce stress; the dispersing agent, the wetting agent and the film forming additive can influence the dispersion uniformity of the structural color pigment, namely, the structural color pigment is dispersed more uniformly in the aqueous acrylic emulsion, so that the structural color pigment is combined with the aqueous acrylic emulsion more tightly, and finally, the coating has higher weather resistance.
Preferably, the filler is kaolin and ground calcium carbonate.
Preferably, the weight ratio of the kaolin to the ground calcium carbonate is 1 (1-1.2).
By adopting the technical scheme, the kaolin mainly comprises minerals such as kaolinite, halloysite, illite, montmorillonite, quartz, feldspar and the like, and the pure kaolin is white, fine and smooth and loose soil, and has good physical and chemical properties such as plasticity, fire resistance and the like. The heavy calcium carbonate is a powdery inorganic filler, and has the advantages of high chemical purity, large inertia, difficult chemical reaction, good thermal stability, no decomposition below 400 ℃, low refractive index, low hardness, small abrasion value, high dispersibility and the like. The physical properties of the building paint, such as heat resistance, gloss, wear resistance, glossiness and the like, can be improved by matching the water-based acrylic emulsion, kaolin and heavy calcium carbonate with the structural color pigment, and particularly, the weather resistance of the paint can be changed, and the cost can be reduced.
Preferably, the method of preparing the architectural coating comprises the steps of,
(1) Adding water into a container, stirring at 250rpm, sequentially adding a defoaming agent, a dispersing agent, a wetting agent, an antifreezing agent and a preservative, and stirring for 5-10 minutes until uniform to obtain a mixed solution;
(2) Under the condition of the rotating speed of 700rpm, adding titanium dioxide, kaolin, heavy calcium carbonate, a thickener and a structural pigment into the mixed solution in the step (1) in proportion, and adjusting the rotating speed to 1300rpm to disperse for 30 minutes until the fineness is less than or equal to 50 mu m to obtain mixed slurry;
(3) And (3) adding water, a pH regulator, a film forming additive, a defoaming agent, a preservative, a mildew inhibitor and a water-based acrylic emulsion into the mixed slurry in the step (2) under the condition of the rotating speed of 250rpm, stirring for 5-10 minutes, adding a thickening agent after observing that no obvious bubbles exist in the slurry, increasing the rotating speed to 700rpm, regulating the viscosity by using water, and continuing to disperse for 10-15 minutes until the mixture is completely uniform, thus obtaining the building coating.
Under different rotation speed conditions, the slurry is mixed and stirred, the rotation speed is regulated according to different viscosity, and when titanium pigment, kaolin, heavy calcium carbonate, a thickening agent and a structural pigment are added, the viscosity is increased, so that the stirring speed is required to be increased, the raw materials can be dispersed more uniformly, the effect of the prepared building coating is more remarkable when the building coating is applied, the building coating has flowing color, and meanwhile, the building coating also has higher weather resistance, and the delta E of the high-color retention building coating is less than or equal to 0.58.
In summary, the application has the following beneficial effects:
1. after the structural color pigment interacts with the aqueous acrylic emulsion and the titanium dioxide, the building paint has bright color and high weather resistance, and delta E is less than or equal to 0.58;
2. the number of layers of the A layer in the structural color pigment is preferably 3, the thickness of the A layer is 130nm, and the thickness of the B layer is 400nm, so that the building paint has higher color retention and weather resistance, and delta E is less than or equal to 0.40;
3. according to the preparation method of the building coating, the building coating is prepared under the condition of different rotating speeds, so that the building coating has higher dispersibility, and has bright color and higher weather resistance.
Detailed Description
The present application will be described in further detail with reference to examples.
Raw materials
The sources of the raw materials used in the present application are shown in table 1.
TABLE 1 sources of raw materials
Preparation of structural color pigments
S1: adding 1kg of base material into a mixed solution of 10kg of water and 5kg of ethanol, wherein the base material is stainless steel flakes (304 stainless steel) with the particle size of 2 mu m, then adding 450g of raw material for preparing a layer A, stirring for 60min, filtering to obtain a mixture, and calcining the mixture at 600 ℃ for 3h to obtain the stainless steel flakes coated with a titanium dioxide layer (the titanium dioxide layer A);
s2: adding the stainless steel flake with the coated titanium dioxide layer into 500g of raw material for preparing the layer B, wherein the raw material for preparing the layer B is silica sol (SiO 2 The mass fraction of (2) is 5%), stirring for 15min, standing for 6.4h, then filtering to obtain a semi-finished product of the structural pigment, and calcining the semi-finished product at 600 ℃ for 3h to obtain the structural pigment, wherein the structural pigment is coated with a titanium dioxide layer (A layer) and a silicon dioxide layer (B layer), the thickness of the titanium dioxide layer is 130nm, and the thickness of the silicon dioxide layer is 400nm. The thickness of the layer structure was measured using a step gauge (model XP-1).
The preparation of preparation examples 2-12 was performed by the preparation method of the structural color pigment, and the above steps S1 and S2 were repeated to obtain a layer a and a layer B having different numbers of layers, and the thickness of the layer a was adjusted by controlling the stirring time in step S1, and the thickness of the layer B was adjusted by controlling the standing time in step S2, as shown in table 2.
TABLE 2 parameters (units: nm) for the distinction of preparation examples 2-12 from preparation example 1
* In Table 2, "-" indicates that the catalyst does not contain the third SiO as in preparation example 4 2 A layer.
Examples
Example 1
(1) Adding 1500g of water into a dispersing cylinder, stirring at 250rpm, sequentially adding 3g of defoamer, 35g of dispersing agent, 15g of wetting agent, 10g of antifreezing agent and 1g of preservative, and stirring for 5 minutes until uniform to obtain a mixed solution;
(2) 2000g of titanium dioxide, 700g of kaolin, 900g of heavy calcium carbonate and 25g of thickener are added into the mixed solution in the step (1) at the rotation speed of 700rpm, 500g of structural color pigment are dispersed for 30 minutes at the rotation speed of 1300rpm to the fineness of 50 mu m, and mixed slurry is obtained;
(3) Adding 1000g of water, 10g of pH regulator, 100g of film forming auxiliary agent, 2g of defoamer, 1g of preservative and 4000g of aqueous acrylic emulsion into the mixed slurry in the step (2) at the rotating speed of 250rpm, stirring for 5 minutes to uniformity, after the slurry is lifted by a paint knife to observe that no obvious bubbles exist, slowly adding 10g of thickener, increasing the dispersing speed to 700rpm, regulating the viscosity by 250g of water, and continuing to disperse for 10 minutes to be completely uniform to obtain the building coating; wherein the structural color pigment application is preparation example 1.
The differences between examples 2 to 18 and comparative examples 1 to 5 and example 1 are shown in Table 3,
TABLE 3 differentiation of examples 2-18, comparative examples 1-5 from example 1 (unit: g)
* In Table 3, "-" indicates that the amount added was 0g.
Comparative example 6
Comparative example 6 differs from example 5 in that the structural color pigment in example 5 was replaced with phthalocyanine blue, and the remainder remained the same.
Comparative example 7
Comparative example 7 differs from example 5 in that the structural color pigment in example 5 was replaced with an iron red pigment, and the remainder remained the same.
Performance test
The architectural coatings prepared in examples 1 to 18 and comparative examples 1 to 7 were applied to a sample, dried, and then the sample was subjected to artificial aging under a xenon lamp with a control of an irradiation intensity of 0.51W/m at a wavelength of 340nm 2 And (3) irradiating for 2000 hours, directly testing by using an instrument, and comparing colors of the templates before and after illumination to obtain delta E.
The paint prepared by the application is mainly applied to the inside and outside of a building wall, and weather resistance refers to the capability of the building paint for resisting comprehensive damage caused by illumination, cold, hot, wind, rain, bacteria and the like. The test for detecting the weather resistance of the building coating is generally an artificial aging test.
Table 4 test results
| Category(s) | Delta E | Weather resistance |
| Example 1 | 0.49 | No fading for 1500 hours |
| Example 2 | 0.53 | No fading for 1500 hours |
| Example 3 | 0.47 | No fading for 1500 hours |
| Example 4 | 0.40 | No fading for 1500 hours |
| Example 5 | 0.20 | No fading for 1500 hours |
| Example 6 | 0.39 | No fading for 1500 hours |
| Example 7 | 0.38 | No fading for 1500 hours |
| Example 8 | 0.51 | No fading for 1500 hours |
| Example 9 | 0.52 | No fading for 1500 hours |
| Example 10 | 0.49 | No fading for 1500 hours |
| Example 11 | 0.58 | 1000 hours without fading |
| Example 12 | 0.56 | 1000 hours without fading |
| Example 13 | 0.44 | No fading for 1500 hours |
| Example 14 | 0.48 | No fading for 1500 hours |
| Example 15 | 0.40 | No fading for 1500 hours |
| Example 16 | 0.43 | No fading for 1500 hours |
| Example 17 | 0.46 | No fading for 1500 hours |
| Example 18 | 0.49 | No fading for 1500 hours |
| Comparative example 1 | 1.02 | Fading for 1000 hours |
| Comparative example 2 | 0.94 | Fading for 1000 hours |
| Comparative example 3 | 1.15 | Fading for 1000 hours |
| Comparative example 4 | 0.88 | Fading for 1000 hours |
| Comparative example 5 | 0.76 | Fading for 1000 hours |
| Comparative example 6 | 2.18 | Fading for 800 hours |
| Comparative example 7 | 2.31 | Fading for 800 hours |
As can be seen by combining examples 1-18 and comparative examples 1-7 and combining Table 4, the architectural coatings prepared from examples 1-18 have higher color retention and weatherability, delta E is less than or equal to 0.58, and no discoloration occurs when artificially aged for 1500 hours; in particular, the architectural coating prepared in example 5 had a delta E of 0.20, indicating the highest color retention.
As can be seen by combining examples 1-5 and Table 4, as the number of layers A and B increases, the delta E of the architectural coating gradually decreases, indicating that the architectural coating has better color retention; when the number of layers of the layer A and the layer B is 3, delta E is minimum.
As can be seen from the combination of examples 5 and comparative examples 1-3 and Table 4, when the aqueous acrylic emulsion or titanium pigment or structural pigment is not added to the architectural coatings prepared in comparative examples 1-3, delta E is greater, indicating that the architectural coatings have poor color retention; after 1000 hours of artificial aging, there was a problem of discoloration, indicating poor weatherability.
When the structural color pigment according to the present application was replaced with a phthalocyanine blue or iron red pigment as shown in Table 4 in combination with examples 5 and comparative examples 6 to 7, delta E was 2.18 and 2.31, respectively, after test, indicating that the color retention and weather resistance of the architectural coating were poor when the architectural coating was prepared using the phthalocyanine blue or iron red pigment.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.
Claims (3)
1. The high-color-retention building coating is characterized by comprising the following raw materials, by weight, 40 parts of aqueous acrylic emulsion, 20 parts of titanium dioxide, 7 parts of kaolin, 9 parts of heavy calcium carbonate, 5 parts of structural color pigment, 0.05 part of defoamer, 0.35 part of dispersing agent, 0.15 part of wetting agent, 0.1 part of antifreezing agent, 0.02 part of preservative, 0.35 part of thickener, 0.1 part of pH regulator, 1 part of film forming additive and 27.5 parts of water;
the structural color pigment is prepared by sequentially coating the surface of a base material with a layer structure, wherein the layer structure comprises an A layer with the refractive index of more than 1.8 and a B layer with the refractive index of less than or equal to 1.8, the A layer and the B layer are sequentially and continuously arranged, the number of layers of the A layer is 3, the thickness of the A layer is 130nm, and the thickness of the B layer is 400nm;
wherein the substrate is selected from inorganic glass, stainless steel flake or organic glass, and the particle size of the substrate is 2-5 mu m.
2. The high color retention architectural coating of claim 1, wherein: the structural color pigment is prepared by the following method,
s1: adding the substrate into a mixed solution of water and ethanol, adding raw materials for preparing the layer A, stirring, filtering to obtain a substrate mixture, and calcining the substrate mixture at 600 ℃ for 3-3.5h to obtain a substrate with a coated layer A; wherein the weight ratio of water to ethanol is 2:1;
s2: and adding the base material with the coating layer A into the raw material for preparing the layer B, stirring for 15-20min, standing, filtering to obtain a semi-finished product of the structural color pigment, and calcining the semi-finished product at 600 ℃ for 3-3.5h to obtain the structural color pigment.
3. The high color retention architectural coating of claim 1, wherein said high color retention architectural coating has a delta E of 0.58 or less.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160360A (en) * | 2005-02-12 | 2008-04-09 | 巴斯福催化剂公司 | Transparent goniochromatic multilayer effect pigment |
| CN102292401A (en) * | 2009-08-19 | 2011-12-21 | 埃卡特有限公司 | High-gloss multilayer effect pigments having a silver interference color and a narrow size distribution, and method for the production thereof |
| CN109054456A (en) * | 2018-07-12 | 2018-12-21 | 福建坤彩材料科技股份有限公司 | A kind of silver-coloured lustre pigment and its preparation method and application based on synthetic mica |
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- 2022-03-25 CN CN202210298296.4A patent/CN114517025B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101160360A (en) * | 2005-02-12 | 2008-04-09 | 巴斯福催化剂公司 | Transparent goniochromatic multilayer effect pigment |
| CN102292401A (en) * | 2009-08-19 | 2011-12-21 | 埃卡特有限公司 | High-gloss multilayer effect pigments having a silver interference color and a narrow size distribution, and method for the production thereof |
| CN109054456A (en) * | 2018-07-12 | 2018-12-21 | 福建坤彩材料科技股份有限公司 | A kind of silver-coloured lustre pigment and its preparation method and application based on synthetic mica |
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| 符韵林等.《用二氧化硅改良木材表面性能的研究》.中国环境科学出版社,2011,(第1版),第9页. * |
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