CN113429851A - Three-color gradient paint and preparation method thereof - Google Patents
Three-color gradient paint and preparation method thereof Download PDFInfo
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- CN113429851A CN113429851A CN202110816781.1A CN202110816781A CN113429851A CN 113429851 A CN113429851 A CN 113429851A CN 202110816781 A CN202110816781 A CN 202110816781A CN 113429851 A CN113429851 A CN 113429851A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
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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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a three-color gradient paint, which comprises a white primer, a red primer, a blue primer, a finish paint and a varnish; respectively mixing and diluting the primer, the finish paint and the varnish with a diluent and a curing agent, and spraying the mixture on the surface of a substrate to obtain a paint film; the invention can make three-color gradual change effect on the locomotive plastic part, and the paint layer has high glossiness and excellent performances of adhesive force, wear resistance, high temperature resistance and the like.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a three-color gradient paint and a preparation method thereof.
Background
The electric vehicle is a green and environment-friendly vehicle, and the electric vehicle and other motor vehicles need to bear the sun and rain outside, so the shell of the electric vehicle needs to be painted for protection; with the development of the times, people mostly demand aesthetic things, and the requirements on paint spraying are not only on realizing the protection function, but also on realizing the characteristics of elegant appearance while having the protection function.
In motor vehicles, such as motorcycles, electric bicycles and the like, currently, single-color paint or paint with a color-changing effect is used, and the gradual-changing effect is difficult to apply to locomotive plastic parts such as electric vehicles, motorcycles and the like.
Disclosure of Invention
In view of the above problems in the prior art, the present applicant provides a three-color gradient paint and a preparation method thereof. The invention can make three-color gradual change effect on the locomotive plastic part, and the paint layer has high glossiness and excellent performances of adhesive force, wear resistance, high temperature resistance and the like.
The technical scheme of the invention is as follows:
a three-color gradient paint comprising a white primer, a red primer, a blue primer, a top coat, and a clear coat;
the white primer comprises the following raw materials in percentage by mass:
the red primer comprises the following raw materials in percentage by mass:
the blue primer comprises the following raw materials in percentage by mass:
the finish paint comprises the following raw materials in percentage by mass:
the varnish comprises the following raw materials in percentage by mass:
the hydroxyl value of the hydroxyl acrylic resin is more than 100 mgKOH/g.
The particle size of the titanium dioxide is less than or equal to 15 mu m.
The leveling agent is BYK-358N; the dispersant is BYK-161.
The red pigment is organic transparent red; the blue pigment is organic phthalocyanine blue.
The anti-settling agent is one or a mixture of fumed silica and bentonite; the defoaming agent is BYK-066N.
The anti-aging agent is a benzotriazole antioxidant; the aromatic hydrocarbon solvent is one of dimethylbenzene and trimethylbenzene.
The preparation method comprises the following steps:
when in use, the white primer, the red primer, the blue primer, the finish paint and the varnish are respectively mixed with the diluent and the curing agent to respectively prepare the diluted white primer, the diluted red primer, the diluted blue primer, the diluted finish paint and the diluted varnish;
treating the base material, spraying a diluted white primer on the surface of the base material, leveling and surface drying to prepare the white primer; then, respectively spraying red primer and blue primer on the white primer, leveling and surface drying; the red primer and the blue primer do not overlap; then, spraying finish paint, leveling, drying the finish paint, and baking the finish paint for 40min at 70 +/-5 ℃; and finally, spraying varnish on the finish paint, leveling, surface drying and baking for 50min at 70 +/-5 ℃.
The diluent is a mixture of various solvents, and the components of the diluent are 25% of aromatic hydrocarbon solvents, 27% of DBE, 23% of butyl acetate and 25% of propylene glycol methyl ether acetate; the curing agent is Bayer 3390.
The mass ratio of the primer, the diluent and the curing agent is 10:10: 1; the mass ratio of the finish paint, the diluent and the curing agent is 10:10: 1; the mass ratio of the varnish, the diluent to the curing agent is 3:1-1.5: 1; the thickness of the primer and the finish after leveling and surface drying is 10-15 mu m; the thickness of the varnish after leveling and surface drying is 15-25 μm.
The preparation method of the pearl powder used by the invention comprises the following steps: preparing a mica suspension by using particle mica as a base material and deionized water, and adding TiCl with the concentration of 20-25% under the condition of controlling the pH value4The solution is stirred and heated at the temperature of 80 ℃ for reaction, and the rutile TiO is directly prepared by filtering, washing, drying, calcining at the temperature of 700 ℃ and surface modification treatment2Coated pearl powder. The prepared pearl powder has pure color, compact and uniform particles, good stability and good weather resistance, and can be suitable for the coating field of electric vehicles, motorcycles and household appliances.
The beneficial technical effects of the invention are as follows:
according to the invention, the primer and the finish are prepared according to specific compositions by specific combination of the existing substances in the prior art, the prepared colorful white paint can have beautiful and elegant color appearance effect, colorful glaring and natural gradual change by a special spraying process, the three-color primer is added with the pearl finish with pink-blue unreal color, an effect that the main color is white and the pink color gradually changes from blue to blue is presented under the irradiation of a light source, and the overall appearance color changes differently by combining the pearl finish effect of two unreal colors on the bottom color with three-color gradual change, and the colorful white paint is dazzlingly beautiful, individual and fashionable. The paint layer obtained by the invention has better glossiness, and simultaneously meets the performances of adhesive force, wear resistance, high temperature resistance and the like of the conventional paint layer, and has excellent comprehensive performance.
When the butyl acetate cellulose used in the invention is used as an auxiliary agent, modified resin or a main film forming substance, the leveling can be improved, the drying time can be shortened, the directional arrangement of the metal pigment can be promoted, the spraying performance can be improved, the yellowing resistance can be improved, and the like; the butyl cellulose acetate has butyryl groups except hydroxyl groups and acetyl groups, and the characteristics of the three groups can ensure that a coating film has beautiful luster and is difficult to age, and a finished product has stable and reliable quality, excellent film-forming property and good compatibility.
The anti-settling agent of the invention is a rheological control agent of a paint, which enables the paint to have thixotropy and greatly improve viscosity. The anti-settling agent used in the invention is an anti-settling agent used in the prior art, and can be organic bentonite, castor oil derivatives, fumed silica, polyolefin wax (particles), modified hydrogenated castor oil, N-methyl pyrrolidone solution (BYK-410) of modified polyurea, polyamide wax and the like.
The leveling agent is a surfactant which has two opposite properties of lipophilicity and hydrophilicity in a molecule. Can uniformly disperse the solid particles of inorganic and organic pigments which are difficult to dissolve in liquid, and can prevent the solid particles from settling and coagulating to form the medicament required by stable suspension. The leveling agent used in the present invention is a leveling agent used in the prior art, and a person skilled in the art can freely select a corresponding leveling agent according to his or her expert knowledge, and the present invention is not particularly limited thereto.
The colorful white paint disclosed by the invention consists of a primer and a top coat, and the primer and the top coat are matched to achieve an expected color effect. When in use, the three primers are firstly coated on the target surface, and then the surface of the three primers is coated with the finish paint. The coating method may be a three-sided or two-sided coating method, or a two-sided or two-sided coating method.
Drawings
Fig. 1 is a schematic view of a coated product of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
The invention relates to a diluent containing 25% of dimethylbenzene, 27% of DBE, 23% of butyl acetate and 25% of propylene glycol methyl ether acetate;
the spraying construction temperature is (25 +/-5) DEG C, and the construction relative humidity is controlled to be 40-80%. Spraying priming paint and finish paint with a spray gun of 1.0 caliber and gloss oil of 1.0-1.3 calibers, wherein the pressure of spraying compressed air is 0.35-0.55 MPa. The operating speed of the spray gun is controlled between 30 cm/s and 60 cm/s; the spraying distance is controlled to be about 15-30cm according to the size of the oil output of the workpiece, and the overlapping of the spraying amplitude is 1/2-2/3.
The diluted paint of the invention must be used up within 4 hours;
examples
A three-color gradient paint comprising a white primer, a red primer, a blue primer, a top coat, and a clear coat; the compositions of the respective raw materials in examples 1 to 3 are shown in Table 1.
TABLE 1
Example 4 coating process:
(1) respectively diluting the white primer, the red primer and the blue primer obtained in the example 1 with a diluent and a curing agent according to a mass ratio of 10:10:1 to respectively prepare a diluted white primer, a diluted red primer and a diluted blue primer;
diluting the finish paint obtained in the example 1 with a diluent and a curing agent 3390 according to a mass ratio of 10:10:1 to prepare diluted finish paint;
diluting the varnish obtained in the example 1 with a diluent and a curing agent 3390 according to a mass ratio of 3:1-1.5:1 to prepare diluted varnish;
(2) polishing and trimming the touch scratch on the electric vehicle baking finish piece, and processing white piece abnormity such as burrs and the like; then wiping and decontaminating by white electric oil or gasoline, and removing dust particles on the workpiece by using an electrostatic gun;
(3) spraying dilute white primer on the surface of the treated workpiece, leveling and surface drying to prepare white primer; then, respectively spraying red primer and blue primer on the white primer, leveling and surface drying; the red primer and the blue primer do not overlap; then, spraying finish paint, leveling, drying, and baking for 40min at 65 ℃; finally, spraying varnish on the finish paint, leveling, surface drying and baking for 50min at 70 ℃; the total thickness of the paint film is 40 mu m. As shown in figure 1, the coated product is seen from figure 1, the surface of a workpiece has white, red and blue color changes, the purpose of dazzling colors is achieved, and the surface gloss is high and is relatively bright.
Example 5 coating process:
(1) respectively diluting the white primer, the red primer and the blue primer obtained in the example 2 with a diluent and a curing agent according to a mass ratio of 10:10:1 to respectively prepare a diluted white primer, a diluted red primer and a diluted blue primer;
diluting the finish paint obtained in the example 1 with a diluent and a curing agent according to the mass ratio of 10:10:1 to prepare diluted finish paint;
diluting the varnish obtained in the example 1 with a diluent and a curing agent according to a mass ratio of 3:1.5:1 to prepare diluted varnish;
(2) polishing and trimming the touch scratch on the electric vehicle baking finish piece, and processing white piece abnormity such as burrs and the like; then wiping and decontaminating by white electric oil or gasoline, and removing dust particles on the workpiece by using an electrostatic gun;
(3) spraying dilute white primer on the surface of the treated workpiece, leveling and surface drying to prepare white primer; then, respectively spraying red primer and blue primer on the white primer, leveling and surface drying; the red primer and the blue primer do not overlap; then, spraying finish paint, leveling, drying, and baking for 40min at 75 ℃; finally, spraying varnish on the finish paint, leveling, surface drying and baking for 50min at 70 ℃; the total thickness of the paint film is 45 mu m; the total paint film thickness is 45 mu m.
Example 6 coating process:
(1) respectively diluting the white primer, the red primer and the blue primer obtained in the embodiment 3 with a diluent and a curing agent according to a mass ratio of 10:10:1 to respectively prepare a diluted white primer, a diluted red primer and a diluted blue primer;
diluting the finish paint obtained in the example 1 with a diluent and a curing agent according to the mass ratio of 10:10:1 to prepare diluted finish paint;
diluting the varnish obtained in the example 1 with a diluent and a curing agent according to a mass ratio of 3:1.2:1 to prepare diluted varnish;
(2) polishing and trimming the touch scratch on the electric vehicle baking finish piece, and processing white piece abnormity such as burrs and the like; then wiping and decontaminating by white electric oil or gasoline, and removing dust particles on the workpiece by using an electrostatic gun;
(3) spraying dilute white primer on the surface of the treated workpiece, leveling and surface drying to prepare white primer; then, respectively spraying red primer and blue primer on the white primer, leveling and surface drying; the red primer and the blue primer do not overlap; then, spraying finish paint, leveling, drying, and baking for 40min at 75 ℃; finally, spraying varnish on the finish paint, leveling, surface drying and baking for 50min at 75 ℃; the total thickness of the paint film is 40 mu m.
Claims (10)
1. A three-color gradient paint, characterized in that the three-color gradient paint comprises a white primer, a red primer, a blue primer, a top coat and a clear coat;
the white primer comprises the following raw materials in percentage by mass:
the red primer comprises the following raw materials in percentage by mass:
the blue primer comprises the following raw materials in percentage by mass:
the finish paint comprises the following raw materials in percentage by mass:
the varnish comprises the following raw materials in percentage by mass:
2. the three-color-gradation paint according to claim 1, wherein the hydroxyl value of the hydroxyl acrylic resin is 100mgKOH/g or more.
3. The tricolor gradient paint of claim 1, wherein the titanium dioxide is less than or equal to 15 μm.
4. The tricolor gradient paint of claim 1, wherein the leveling agent is BYK-358N; the dispersant is BYK-161.
5. The tricolor gradient paint of claim 1, wherein the red pigment is an organic transparent red; the blue pigment is organic phthalocyanine blue.
6. The tricolor graded paint of claim 1, wherein the anti-settling agent is one or a mixture of fumed silica and bentonite; the defoaming agent is BYK-066N.
7. The tricolor gradient paint of claim 1, wherein the anti-aging agent is a benzotriazole-based antioxidant; the aromatic hydrocarbon solvent is one of dimethylbenzene and trimethylbenzene.
8. A method of preparing the trichromatic gradient paint of claim 1, said method comprising:
when in use, the white primer, the red primer, the blue primer, the finish paint and the varnish are respectively mixed with the diluent and the curing agent for dilution to respectively prepare diluted white primer, diluted red primer, diluted blue primer, diluted finish paint and diluted varnish;
treating the base material, spraying a diluted white primer on the surface of the base material, leveling and surface drying to prepare the white primer; then, respectively spraying red primer and blue primer on the white primer, leveling and surface drying; the red primer and the blue primer do not overlap; then, spraying finish paint, leveling, drying the finish paint, and baking the finish paint for 40min at 70 +/-5 ℃; and finally, spraying varnish on the finish paint, leveling, surface drying and baking for 50min at 70 +/-5 ℃.
9. The method of claim 8, wherein the diluent is a mixture of solvents consisting of 25% aromatic hydrocarbon solvent, 27% DBE, 23% butyl acetate, 25% propylene glycol methyl ether acetate; the curing agent is Bayer 3390.
10. The preparation method according to claim 8, wherein the mass ratio of the primer, the diluent and the curing agent is 10:10: 1; the mass ratio of the finish paint, the diluent and the curing agent is 10:10: 1; the mass ratio of the varnish, the diluent to the curing agent is 3:1-1.5: 1; the thickness of the primer and the finish after leveling and surface drying is 10-15 mu m; the thickness of the varnish after leveling and surface drying is 15-25 μm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110816781.1A CN113429851A (en) | 2021-07-20 | 2021-07-20 | Three-color gradient paint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110816781.1A CN113429851A (en) | 2021-07-20 | 2021-07-20 | Three-color gradient paint and preparation method thereof |
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| CN113429851A true CN113429851A (en) | 2021-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082621A (en) * | 2021-10-12 | 2022-02-25 | 华人运通(江苏)技术有限公司 | Processing method for gradient color of vehicle body |
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|---|---|---|---|---|
| CN102189070A (en) * | 2010-03-08 | 2011-09-21 | 郑明亮 | Surface treatment method for shell |
| CN102241932A (en) * | 2011-06-15 | 2011-11-16 | 江苏雅迪科技发展有限公司 | Colorful paint |
| CN103770412A (en) * | 2014-01-16 | 2014-05-07 | 王尚弟 | Flashing lacquer with high decoration property and high weather fastness for vehicle with angle-dependent optical effect |
| CN111704832A (en) * | 2020-06-23 | 2020-09-25 | 广东圣源恒科技有限公司 | Multicolor paint and spraying method thereof |
-
2021
- 2021-07-20 CN CN202110816781.1A patent/CN113429851A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189070A (en) * | 2010-03-08 | 2011-09-21 | 郑明亮 | Surface treatment method for shell |
| CN102241932A (en) * | 2011-06-15 | 2011-11-16 | 江苏雅迪科技发展有限公司 | Colorful paint |
| CN103770412A (en) * | 2014-01-16 | 2014-05-07 | 王尚弟 | Flashing lacquer with high decoration property and high weather fastness for vehicle with angle-dependent optical effect |
| CN111704832A (en) * | 2020-06-23 | 2020-09-25 | 广东圣源恒科技有限公司 | Multicolor paint and spraying method thereof |
Non-Patent Citations (1)
| Title |
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| 王丕宁: "渐变色自动喷涂机", 《技术与市场》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082621A (en) * | 2021-10-12 | 2022-02-25 | 华人运通(江苏)技术有限公司 | Processing method for gradient color of vehicle body |
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