CN109207053B - Color coating composition and application method thereof - Google Patents
Color coating composition and application method thereof Download PDFInfo
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- CN109207053B CN109207053B CN201810911169.0A CN201810911169A CN109207053B CN 109207053 B CN109207053 B CN 109207053B CN 201810911169 A CN201810911169 A CN 201810911169A CN 109207053 B CN109207053 B CN 109207053B
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- 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
-
- 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
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D5/32—Radiation-absorbing paints
-
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention provides an environment-friendly colored coating composition and a using method thereof, which are particularly suitable for repairing or improving the appearance and color of the surface of a vehicle. The coating composition comprises 14-18% of polyurethane methacrylate resin, 14-18% of acrylic resin, 2-5% of polyisocyanate, 33-38% of ethyl acetate, 18-22% of methylcyclohexane, 5-8% of methyl isobutyl ketone, 3-8% of pigment, 1-3% of ultraviolet absorber and 1-4% of light stabilizer. Among them, the pigment contains scale-like metals such as flake-like aluminum oxide and cellulose ether, and the ultraviolet absorber includes benzotriazole and nano titanium oxide.
Description
Technical Field
The invention relates to the technical field of vehicle coating, in particular to a color coating composition for repairing or improving the appearance of a vehicle, particularly the surface color, and a using method thereof.
Background
A conventional coated vehicle component is composed of a vehicle component material, a primer coat (primer coat) formed on the vehicle component material, a base coat (base coat) formed on the primer coat, and a clear coat (clear coat) formed on the base coat. Wherein the primer layer has a thickness of about 8 μm; the base coat is typically a pigmented paint layer, about 20 μm thick; the clear coat is typically a high gloss layer formed from clear paint and has a thickness of about 30 μm.
With the rapid development of the automobile industry and the increasing popularity of automobile ownership and use by ordinary consumers, the number of automobiles is increasing, and the demand for paint for automobile surface coating is increasing. Moreover, due to the general increase in aesthetic appeal, automotive consumers are increasingly demanding surface appearance properties, including color and texture.
In the daily production and life of actual use, on one hand, the surface of an automobile is extremely easy to be damaged by sand and gravel, scratches such as scratches are extremely easy to form on the surface of the automobile paint, small pits and the like are scratched and damaged, so that the overall appearance and texture of the automobile are influenced. On the other hand, the consumer still often appears carrying out the demand of whole repacking or whole car renovation to the car in the use, and in the process of repacking or renovating, the consumer often will tend to change own original car colour into the new colour of liking more, fashion, if do not carry out the paint coating of basic coating this moment, and direct spraying colored varnish coating, the operation will be convenient and save trouble more, also can more effective saving time and cost.
Therefore, the colored varnish coating for the vehicle surface has good coating performance, simple and convenient operation, and excellent fullness and gloss after coating, and has extremely wide application prospect. However, the current varnish coatings are far from achieving satisfactory performances in various aspects such as coating operability, maintaining overall consistency of vehicle appearance after repair, wear resistance, corrosion resistance and weather resistance, and the like, which are opposite to the great market demands.
Accordingly, an object of the present invention is to provide a color coating composition for repairing or improving the color of a vehicle surface, which has good coating properties, excellent abrasion resistance, corrosion resistance and weather resistance, and a beautiful and textured coating appearance, and a method for using the same.
Disclosure of Invention
The invention aims to provide an environment-friendly colored coating composition, which realizes that the coating composition has good coating performance for facilitating coating repair at the damaged part of the surface of a vehicle through unique component selection and optimal component proportion, and the coated surface has gloss texture, bright color and excellent wear resistance, corrosion resistance and weather resistance.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environment-friendly colored coating composition, characterized in that: the coating composition comprises 14-18% of polyurethane methacrylate resin, 14-18% of acrylic resin, 2-5% of polyisocyanate, 33-38% of ethyl acetate, 18-22% of methylcyclohexane, 5-8% of methyl isobutyl ketone, 3-8% of pigment, 1-3% of ultraviolet absorber and 1-4% of light stabilizer.
Preferably, the pigment comprises a scale-like metal such as a flaky alumina and a cellulose ether.
Further preferably, the mass ratio of the scale-like metal to the cellulose ether is 3-5: 1.
More preferably, the surface of the scaly metal is coated with silicon oxide, and the grain diameter of the scaly metal is 0.2-0.5 μm
Preferably, the ultraviolet absorber includes benzotriazole and nano titanium oxide.
Further preferably, the mass ratio of the benzotriazole to the nano titanium oxide is 10-15: 1.
More preferably, the particle size of the nano titanium oxide is 20-40 nm.
The invention also aims to provide a coating film-forming using method of the environment-friendly color coating composition, which comprises the following steps:
1) fully stirring the coating composition to uniformly mix all the components;
2) uniformly coating the surface to be repaired with the coating composition by adopting an air spraying process, and then standing;
3) after coating, the coating film is dried by hot air;
4) after drying, the coating film is subjected to ultraviolet curing treatment.
Preferably, the thickness of the coating film is 40 to 60 μm.
Preferably, standing for 5-10min after coating; hot air drying at 50-60 deg.C for 5-10 min; the ultraviolet wavelength of the ultraviolet curing treatment is 380nm, the irradiation distance is 15-20cm, and the irradiation energy is 800-2And the curing time is 5-10 min.
The environment-friendly colored coating composition and the use method thereof have the beneficial effects that: the unique component selection and the optimized component proportion realize that the coating composition has good coating performance which is convenient for coating and repairing at the damaged part of the surface of the vehicle or the renovation of the vehicle, and the coated surface has gloss texture and bright color and has excellent wear resistance, corrosion resistance and weather resistance.
Detailed Description
Example 1
First, a coating composition was prepared, which included 14% of urethane methacrylate resin, 14% of acrylic resin, 2% of polyisocyanate, 38% of ethyl acetate, 18% of methylcyclohexane, 5% of methyl isobutyl ketone, 5% of pigment, 2% of ultraviolet absorber, and 2% of light stabilizer. Wherein the content of the first and second substances,
the urethane methacrylate has 9 acryl groups;
the acrylic resin is a polymer of a macromonomer of polymethyl methacrylate and 2-hydroxyethyl acrylate, wherein the number average molecular weight of the macromonomer of polymethyl methacrylate is 2500, the mass ratio of the macromonomer of polymethyl methacrylate to 2-hydroxyethyl acrylate is 1:5, and the weight average molecular weight of the acrylic resin obtained after polymerization is 25 ten thousand;
the polyisocyanate is hexamethylene diisocyanate;
the pigment comprises scale-shaped aluminum powder and cellulose ether; specifically, the mass ratio of the scale-shaped aluminum powder to the cellulose ether is 4:1, the surface of the scale-shaped aluminum powder is coated with silicon oxide, and the particle size of the scale-shaped aluminum powder is 0.3 mu m
The ultraviolet absorbent comprises benzotriazole and nano titanium oxide; specifically, the mass ratio of benzotriazole to nano titanium oxide is 12:1, and the particle size of the nano titanium oxide is 30 nm.
The light stabilizer is a hindered amine light stabilizer.
Preparing the components according to the mass ratio to obtain a coating composition, and fully stirring the coating composition to uniformly mix the components; then, uniformly coating the coating composition on a sample simulating the surface to be repaired by adopting an air spraying process until a 50-micrometer coating film is formed, and standing for 5 min; then, the coating film is dried by hot air for 5min at the temperature of 55 ℃; subsequently, ultraviolet rays having a wavelength of 380nm, 800/cm were used2The curing is carried out at a position of about 20cm for 5 min.
Examples 2 to 8 were conducted by adjusting the contents of the respective components, and the rest were the same as in example 1, and the specific content ratios are shown in table 1, wherein a to I in table 1 represent urethane methacrylate resin, acrylic resin, polyisocyanate, ethyl acetate, methylcyclohexane, methyl isobutyl ketone, pigment, ultraviolet absorber, and light stabilizer, respectively, in the present invention.
In example 9, the weight ratio of the flaky aluminum powder to the cellulose ether was 8:1, and the rest was the same as in example 1.
In example 10, the surface of the flaky aluminum powder was coated with alumina instead of silica, and the rest was the same as in example 1.
In example 11, the particle diameter of the flaky aluminum powder was 1 μm, and the rest was the same as in example 1.
In example 12, the mass ratio of benzotriazole to nano titanium oxide was 20:1, and the rest was the same as in example 1.
In example 13, the particle size of the nano titanium oxide was 60nm, and the rest was the same as in example 1.
TABLE 1
| A | B | C | D | E | F | G | H | I | |
| 1 | 14 | 14 | 2 | 38 | 18 | 5 | 5 | 2 | 2 |
| 2 | 14 | 14 | 4 | 33 | 22 | 5 | 5 | 1 | 2 |
| 3 | 18 | 18 | 2 | 33 | 18 | 6 | 3 | 1 | 1 |
| 4 | 14 | 16 | 3 | 34 | 18 | 5 | 8 | 1 | 1 |
| 5 | 10 | 12 | 2 | 38 | 22 | 8 | 4 | 2 | 2 |
| 6 | 18 | 18 | 3 | 30 | 15 | 5 | 5 | 3 | 3 |
| 7 | 14 | 14 | 2 | 35 | 18 | 5 | 10 | 1 | 1 |
| 8 | 16 | 16 | 3 | 33 | 20 | 5 | 6 | 0.5 | 0.5 |
The following experimental tests were carried out on samples of the coating films of the above coating compositions to obtain properties of the coating films formed by the coating compositions, and the results are shown in Table 2.
Firstly, testing the coating performance of a coating film
Drying property: the surface coated with the coating film of the coating composition of the present invention which was cured by baking only without irradiation was examined directly by light touch with the fingertip, and drying property was considered to be poor if there was coating adhesion to the fingertip after touch (x) and good if there was no coating adhesion to the fingertip after touch (o).
Coating appearance: when the surface of the coating film coated with the coating composition of the present invention was visually observed, the appearance was excellent with a bright and uniform color and without any defects such as blisters and the like (o), the appearance was clear with no visible blisters and with a substantially uniform color shade (Δ), and the appearance was poor with visible blisters and with a dull and uneven color (x).
Secondly, testing the weather resistance of the coating film
The coating film coated with the coating composition of the invention is subjected to accelerated weathering test using a QUV tester, specifically, 200W/m2The energy intensity of (2) simulates solar irradiation, and 200 cycles are performed with a cycle of 70 ℃ for 8 hours (Dry) +50 ℃ for 4 hours (Wet), wherein,
firstly, a coating film sample after circulation is subjected to gloss measurement by using a gloss meter (60 degrees), and the weather resistance of the coating film is evaluated according to gloss retention (%) before and after an experiment, wherein the gloss retention is excellent (O) when being more than 90 percent, the gloss retention is fair (delta) when being more than 70-90 percent, and the gloss retention is poor (X) when being less than 70 percent;
secondly, recording the testing time (h) of obvious defects such as stripes on the surface of the coating sample to evaluate the weather resistance of the coating, wherein the longer the testing time is, the better the weather resistance is, and the obvious defects are not marked as < - >.
Thirdly, testing the light transmittance of the coating film
The light transmittance (%) of the coating film coated with the coating composition of the invention is calculated by adopting a spectrophotometer test, and the specific test wavelengths are 300-400nm (ultraviolet band) and 400-700nm (visible light band).
TABLE 2
The formulation of the coating system of the present invention is further illustrated below:
in the coating, the urethane methacrylate resin contains a large amount of acryloyl groups, so that the alkali resistance and the solvent resistance of the coating composition can be obviously improved, the corrosion resistance of the coating in corrosive air, alkaline liquid car washing operation and other processes after film formation is improved, the service life of the coating is further prolonged, in order to ensure that the urethane methacrylate resin can play the above roles in a system, the content of the urethane methacrylate resin needs to be at least 14%, but the content of the urethane methacrylate resin is not too high, such as more than 18%, or the effects of other resins are influenced. Meanwhile, in order to secure sufficient corrosion resistance, it is preferable to secure at least 9 acryl groups in the urethane methacrylate.
The acrylic resin in the paint provided by the invention adopts a macromonomer of polymethyl methacrylate and a polymer of acrylic acid-2-hydroxyethyl ester, and has lower viscosity than common paint resin, so that good coating performance is obtained, the content of the acrylic resin is at least 14%, but not too much, and the effect of other resins is influenced when the content exceeds 18%; meanwhile, the coating film has excellent comprehensive performance of strength and ductility, so that the coating film has excellent wear resistance and scratch resistance, and in order to ensure that the acrylic resin can play the above role, the number average molecular weight of the macromonomer of polymethyl methacrylate is preferably 2000-3500. Meanwhile, the mass ratio of the macromonomer of the polymethyl methacrylate to the 2-hydroxyethyl acrylate is not too large, if the ratio is more than 1:5, although the coating has better wear resistance and good scratch resistance, the overall coating performance is poor, but the ratio cannot be too small, such as less than 1:5.5, otherwise the wear resistance and the scratch resistance of the coating cannot meet the requirements; further, the weight average molecular weight of the acrylic resin should be controlled to 25 to 30 ten thousand in consideration of the strength, ductility and coatability.
In the coating, hexamethylene diisocyanate can be used as a hardening agent, in order to ensure sufficient crosslinking and curing in the heating irradiation process and further ensure various performances such as wear resistance and corrosion resistance of a coating, the content of hexamethylene diisocyanate is at least 2%, the content of hexamethylene diisocyanate is not too high, and once the content of hexamethylene diisocyanate exceeds 5%, redundant hexamethylene diisocyanate which does not participate in reaction can influence the performances such as scratch resistance of the coating.
The main material of the solvent in the coating of the invention is ethyl acetate, which has excellent drying property and endows the coating composition with excellent coating performance, in order to make the ethyl acetate play the above function in the system, the content of the ethyl acetate should be at least 33%, but the addition amount should not be too large, and if the addition amount exceeds 38%, the appearance of the formed coating film is deteriorated.
The auxiliary material in the solvent in the coating is methylcyclohexane, the methylcyclohexane can effectively improve the coating adhesion capability of the coating composition on a primer and a finish paint, so that a coating film after repairing particularly has excellent adhesion and excellent appearance texture, the content of the methylcyclohexane is at least 18 percent in order to play the above role in a system, but the addition amount of the methylcyclohexane is not too high, and if the addition amount exceeds 22 percent, the coating performance of the coating composition is deteriorated.
The solvent in the coating of the invention also contains a certain proportion of methyl isobutyl ketone, the methyl isobutyl ketone can improve the coating performance of the coating composition and the storage time of the coating composition, in order to ensure that the methyl isobutyl ketone can play the role in the system, the content of the methyl isobutyl ketone is at least 5 percent, but the addition amount of the methyl isobutyl ketone is not too high, and if the methyl isobutyl ketone exceeds 8 percent, the appearance of a coating film is obviously and unevenly deteriorated due to larger resin dissolving capacity.
The pigment is an important component of the color coating composition, in order to enable a coating film to obtain corresponding colors and ensure bright and uniform luster, the pigment is preferably a mixture of scaly metal (such as flaky alumina) and cellulose ether, more preferably, the scaly metal is coated by the surface of silicon oxide, the scaly metal after being treated by the silicon oxide can be more uniformly dispersed in a resin solution, coagulation in the resin solution is avoided, so that the coating performance and the wear and scratch resistance are influenced, the cellulose ether can better help the scaly metal to adjust the direction, so that better color brightness is obtained, the ratio of the scaly metal to the cellulose ether is not more than 5:1, but not too small, otherwise, the viscosity of the system is too high, so that the coating appearance and other performances are influenced; meanwhile, the particle diameter of the scale-like metal is preferably 0.2 to 0.5 μm to obtain a sufficiently bright and uniform color. The content thereof is preferably more than 3% according to actual needs, but in order not to affect the overall properties of the coating film system, the content thereof is preferably less than 8%.
In the present invention, in order to ensure sufficient weather resistance of the coating composition for film formation, an ultraviolet absorber is further added, the ultraviolet absorber is preferably a mixture of an organic ultraviolet absorber benzotriazole and an inorganic ultraviolet absorber nano titanium oxide, and the content thereof is preferably more than 1% in order to ensure the achievement of the efficacy thereof, but the addition of an excessive amount of the ultraviolet absorber is likely to cause coagulation of the coating system and further affect the appearance of the coating system, such as coating film, and the like, and the content thereof is preferably less than 3% in order not to affect the overall performance of the coating system. Meanwhile, in order to ensure the excellent ultraviolet absorption enhancing effect of the nano titanium oxide and the weather resistance of the coating film, the ratio of the nano titanium oxide to the benzotriazole should not be less than 15:1, but should not exceed 10:1, otherwise various problems such as dispersibility and agglomeration may be caused. Further, the particle diameter of the nano titanium oxide is preferably 20 to 30nm, and an excessively large particle diameter will hardly exert a sufficient ultraviolet absorption effect and cause a problem of uniform dispersibility.
The coating composition of the invention is further added with a light stabilizer, preferably a common hindered amine light stabilizer, the addition of the light stabilizer can effectively improve the weather resistance of a coating film, the addition amount of the light stabilizer is preferably more than 1% in order to ensure the addition effect, but the content of the light stabilizer is controlled to be less than 4% in order not to influence the coating performance, the wear resistance, the scratch resistance and the like of the coating composition.
The coating composition of the present invention has excellent coating properties, and a coating film having excellent properties can be formed by simple air spray and ultraviolet irradiation curing, and in order to ensure the excellent properties of the film formation of the coating composition of the present invention, the coating composition should be dried at a temperature of 50 ℃ or higher for 5min or more and 800mj/cm or more at least after spray coating in a coating operation using the coating composition2The ultraviolet radiation with the wavelength of 380nm is more than 5min, so that the coating can be fully dried, and a uniform, compact and firmly attached film layer can be formed. But care should be taken to avoid excessive crosslinking due to excessive heating and irradiation, which can affect film forming properties.
Although the present invention is illustrated by the above examples of the effect of the coating material of the present invention, the present invention is not limited to the above examples. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (4)
1. An environment-friendly colored coating composition, characterized in that: the coating composition comprises 14-18% of polyurethane methacrylate resin, 14-18% of acrylic resin, 2-5% of polyisocyanate, 33-38% of ethyl acetate, 18-22% of methylcyclohexane, 5-8% of methyl isobutyl ketone, 3-8% of pigment, 1-3% of ultraviolet absorbent and 1-4% of light stabilizer; the urethane methacrylate has 9 or more acryl groups; the acrylic resin is a polymer of a macromonomer of polymethyl methacrylate and 2-hydroxyethyl acrylate, the mass ratio of the macromonomer of polymethyl methacrylate to 2-hydroxyethyl acrylate is 1:5-5.5, the number average molecular weight of the macromonomer of polymethyl methacrylate is 2000-3500, and the weight average molecular weight of the acrylic resin is 25-30 ten thousand; the polyisocyanate is hexamethylene diisocyanate;
the pigment comprises scale-shaped aluminum powder and cellulose ether, the mass ratio of the scale-shaped aluminum powder to the cellulose ether is 3-5:1, the surface of the scale-shaped aluminum powder is coated with silicon oxide, and the particle size of the scale-shaped aluminum powder is 0.2-0.5 mu m;
the ultraviolet absorbent comprises benzotriazole and nano titanium oxide, the mass ratio of the benzotriazole to the nano titanium oxide is 10-15:1, and the particle size of the nano titanium oxide is 20-40 nm.
2. A method of using the environmentally friendly color coating composition of claim 1 as a paint film, the method comprising:
1) fully stirring the coating composition to uniformly mix all the components;
2) uniformly coating the surface to be repaired with the coating composition by adopting an air spraying process, and then standing;
3) after coating, the coating film is dried by hot air;
4) after drying, the coating film is subjected to ultraviolet curing treatment.
3. Use according to claim 2, characterized in that: the thickness of the coating film is 40-60 mu m.
4. Use according to claim 2, characterized in that: standing for 5-10min after coating; hot air drying at 50-60 deg.C for 5-10 min; the ultraviolet wavelength of the ultraviolet curing treatment is 380nm, the irradiation distance is 15-20cm, and the irradiation energy is 800-2And the curing time is 5-10 min.
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| CN112940586A (en) * | 2021-02-01 | 2021-06-11 | 宁波革创新材料科技有限公司 | Polyurethane modified epoxy resin anticorrosive paint and preparation method thereof |
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| CN106634555A (en) * | 2017-01-13 | 2017-05-10 | 北京涑酷特威科技有限公司 | UV dual-cured automobile repairing coating and preparation method thereof |
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| CN1233635A (en) * | 1998-02-25 | 1999-11-03 | 巴斯福公司 | Straight-shade coating compositions |
| CN102260421A (en) * | 2011-06-08 | 2011-11-30 | 四川大学 | Magic-color nacreous aluminum powder pigment and preparation method thereof |
| CN102827501A (en) * | 2012-08-02 | 2012-12-19 | 中山大桥化工企业集团中山智亨实业发展有限公司 | Double-curing varnish paint |
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| CN106634555A (en) * | 2017-01-13 | 2017-05-10 | 北京涑酷特威科技有限公司 | UV dual-cured automobile repairing coating and preparation method thereof |
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