CN109135451B - High-weather-resistance heat-reflection steel plate coil metal coating and preparation method thereof - Google Patents
High-weather-resistance heat-reflection steel plate coil metal coating and preparation method thereof Download PDFInfo
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- CN109135451B CN109135451B CN201811011861.4A CN201811011861A CN109135451B CN 109135451 B CN109135451 B CN 109135451B CN 201811011861 A CN201811011861 A CN 201811011861A CN 109135451 B CN109135451 B CN 109135451B
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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
- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/16—Homopolymers or copolymers of vinylidene fluoride
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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
- C09D5/004—Reflecting paints; Signal 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The divisional application relates to a high-weather-resistance heat-reflection steel plate coil metal coating and a preparation method thereof, belonging to the technical field of steel plate coil coatings. The high-weather-resistance heat-reflection steel plate coil metal coating comprises the following components in percentage by mass: 20-25% of PVDF resin, 8-11% of acrylic resin, 2-5% of polymethyl methacrylate, 10-12% of aluminum powder, 45-50% of organic solvent, 0.3-0.6% of defoaming agent, 0.5-0.8% of silane coupling agent, 0.4-0.6% of UV ultraviolet absorbent, 0.4-0.7% of leveling assistant, 3-6% of titanium dioxide, 0.5-0.9% of oriented arrangement agent and the total sum of all the components being 100%. The coating has excellent weather resistance and good physical properties.
Description
The application is a divisional application with the application number of 201610747159.9, the application date of 2016.08.29 and the invention name of "high weather-resistant heat-reflecting steel plate coil metal paint and a preparation method thereof".
Technical Field
The invention belongs to the technical field of steel plate coil coating, and particularly relates to a high-weather-resistance heat-reflection steel plate coil metal coating and a preparation method thereof.
Background
With the vigorous development of the building industry in China, the demand of building materials is on the trend of rising year by year. The steel plate coiled material is widely used as building materials of external wall surfaces, roofs and the like. In general, in order to improve the performance of a steel sheet coil, a zinc plating treatment is performed on the surface of the steel sheet coil to increase a zinc plating layer, thereby providing the steel sheet coil with excellent corrosion resistance, and the steel sheet coil is mainly used as an outdoor coil, and thus has a high demand for weather resistance.
The weather resistance paint is coated on the surface of the galvanized layer, so that the weather resistance of the galvanized steel sheet can be effectively improved. The high weather resistance coating mainly comprises fluorine-containing coating. The fluorine-containing coating has the advantages of easy cleaning, excellent self-lubricating property, low friction property, hydrophobicity, oleophobicity, good heat resistance, good weather resistance and the like, the most extensive fluorine-containing coating applied to the steel plate coil at present is polyvinylidene fluoride (PVDF) coating which can not be cured at normal temperature, the sintering temperature is 240 ℃, and the fluorine-containing coating has been applied as high weather-resistant coating of the outer wall for more than 40 years. Polyvinylidene fluoride (PVDF) paint cannot be cured independently and needs to be matched with corresponding primer, but the primer which is better combined with the PVDF paint is expensive and hinders the application of the PVDF paint to a certain extent, so that the existing PVDF paint is modified to omit the use of the traditional primer.
The prior coating for the steel plate coiled material mainly has the following defects: firstly, the method comprises the following steps: the dispersant is not used properly, and the excessive high or low boiling point of the dispersant can influence the fluidity of the coating film, so that the surface of the coating film has defects; secondly, the method comprises the following steps: the resin used in combination with the polyvinylidene fluoride has poor compatibility with the polyvinylidene fluoride, and influences the performance of a coating film, so that the weather resistance of the coating film is reduced.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide a high-weather-resistance heat-reflection steel plate coil metal coating which has excellent weather resistance and good physical properties.
The invention adopts the following technical scheme:
the high-weather-resistance heat-reflection steel plate coil metal coating comprises the following components in percentage by mass:
20-25% of PVDF resin,
8-11% of acrylic resin,
2-5% of polymethyl methacrylate,
10-12% of aluminum powder,
45-50% of organic solvent,
0.3 to 0.6 percent of defoaming agent,
0.5 to 0.8 percent of silane coupling agent,
0.4 to 0.6 percent of UV absorbent,
0.4 to 0.7 percent of leveling assistant,
3-6% of titanium dioxide,
0.5 to 0.9 percent of directional arrangement agent,
The sum of the components is 100 percent.
Further, the high weather-resistant heat-reflecting steel plate coil metal coating is characterized in that the acrylic resin is copolymerized by methyl methacrylate and ethyl acrylate.
Further, the metal coating for the steel sheet coil with high weather resistance and heat reflection is described above, wherein the organic solvent is at least one of isophorone, xylene, and diisobutyl ketone.
Furthermore, the high weather-resistant heat-reflecting steel plate coil metal coating is characterized in that the organic solvent is a mixture of isophorone and diisobutyl ketone, and the mass ratio of isophorone to diisobutyl ketone is 4: 1.
Further, the high weather-resistant heat-reflecting steel plate coil metal coating is characterized in that the UV ultraviolet absorber is 2-hydroxy-4-n-octoxybenzophenone.
The invention also provides a preparation method of the high weather-resistant heat reflection steel plate coil metal coating, which comprises the following steps: according to the proportion, acrylic resin, polymethyl methacrylate and aluminum powder are stirred and dispersed uniformly, then an organic solvent is added for ball milling until the fineness of the slurry is less than 10 mu m, and then PVDF resin, a defoaming agent, a silane coupling agent, a UV ultraviolet absorbent, a leveling assistant, titanium dioxide and a directional arrangement agent are added for stirring and dispersing uniformly, so that the high weather-resistant heat reflection steel plate coil metal coating is obtained.
Further, the preparation method of the high weather-resistant heat-reflecting steel plate coil metal coating is characterized in that the stirring and dispersion are carried out by a high-speed stirrer, and the stirring speed is 3000 r/min.
The invention also provides a galvanized steel sheet with the surface coated with the high weather-resistant heat reflection steel sheet coil metal coating.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the method comprises the following steps: according to the invention, the acrylic resin, the polymethyl methacrylate and the PVDF resin are matched, the cohesive energy of the polyvinylidene fluoride resin is relatively similar to that of the polymethyl methacrylate, and the stability of a bonding hydrogen bond between the polyvinylidene fluoride resin and the acrylic resin can be effectively improved by adding a small amount of polymethyl methacrylate, so that the compatibility of the polyvinylidene fluoride resin and the acrylic resin is improved, and the performance of a coating film can be effectively improved;
secondly, the method comprises the following steps: the mixture of the isophorone and the diisobutyl ketone is used as the dispersing agent, and the boiling point of the mixture is moderate and is about 160 ℃, so that the moderate volatilization speed can be ensured, the fluidity of a paint film in the coating process is ensured, and the adverse effect on the appearance of the paint film caused by too fast or too slow volatilization of a solvent is effectively prevented;
thirdly, the method comprises the following steps: after the coating is coated on a galvanized steel sheet coil, a formed coating film has excellent high weather resistance, good heat reflection performance and excellent physical performance, and compared with a common color steel sheet, the coating is used under the same sunshine condition, and the surface temperature of the galvanized steel sheet coated with the metal coating of the high weather resistance heat reflection steel sheet coil can be reduced by 18 ℃ at most.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be understood by those skilled in the art that the following examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, the UV absorber used in the present invention is 2-hydroxy-4-n-octoxybenzophenone, but not limited thereto, and the acrylic resin used in the present invention is copolymerized from methyl methacrylate and ethyl acrylate.
Example 1
24 percent of PVDF resin,
8 percent of acrylic resin,
2.5 percent of polymethyl methacrylate,
10.2 percent of aluminum powder,
40 percent of isophorone,
10 percent of diisobutyl ketone,
0.3 percent of defoaming agent,
0.6 percent of silane coupling agent,
0.4 percent of UV absorbent,
0.4 percent of leveling assistant,
3 percent of titanium dioxide,
0.6 percent of alignment agent.
The preparation method of the high weather-resistant heat reflection steel plate coil metal coating comprises the following steps: according to the proportion, acrylic resin, polymethyl methacrylate and aluminum powder are stirred and dispersed uniformly at 3000r/min, then an organic solvent is added for ball milling until the fineness of the slurry is less than 10 mu m, and then PVDF resin, a defoaming agent, a silane coupling agent, a UV ultraviolet absorbent, a leveling auxiliary agent, titanium dioxide and an oriented arrangement agent are added, and stirred and dispersed uniformly at 3000r/min, so that the high weather-resistant heat-reflecting steel plate coil metal coating is obtained.
Example 2
22 percent of PVDF resin,
10 percent of acrylic resin,
3 percent of polymethyl methacrylate,
11 percent of aluminum powder,
Isofluridone 42%
Xylene (5.3%)
0.4 percent of defoaming agent,
0.6 percent of silane coupling agent,
0.5 percent of UV absorbent,
0.5 percent of leveling assistant,
4 percent of titanium dioxide,
0.7 percent of alignment agent.
The preparation method of the high weather-resistant heat reflection steel plate coil metal coating comprises the following steps: according to the proportion, acrylic resin, polymethyl methacrylate and aluminum powder are stirred and dispersed uniformly at 3000r/min, then an organic solvent is added for ball milling until the fineness of the slurry is less than 10 mu m, and then PVDF resin, a defoaming agent, a silane coupling agent, a UV ultraviolet absorbent, a leveling auxiliary agent, titanium dioxide and an oriented arrangement agent are added, and stirred and dispersed uniformly at 3000r/min, so that the high weather-resistant heat-reflecting steel plate coil metal coating is obtained.
Example 3
20 percent of PVDF resin,
10.5 percent of acrylic resin,
5 percent of polymethyl methacrylate,
12 percent of aluminum powder,
45 percent of isophorone,
0.4 percent of defoaming agent,
0.5 percent of silane coupling agent,
0.6 percent of UV absorbent,
0.5 percent of leveling assistant,
5 percent of titanium dioxide,
0.5 percent of alignment agent.
The preparation method of the high weather-resistant heat reflection steel plate coil metal coating comprises the following steps: according to the proportion, acrylic resin, polymethyl methacrylate and aluminum powder are stirred and dispersed uniformly at 3000r/min, then an organic solvent is added for ball milling until the fineness of the slurry is less than 10 mu m, and then PVDF resin, a defoaming agent, a silane coupling agent, a UV ultraviolet absorbent, a leveling auxiliary agent, titanium dioxide and an oriented arrangement agent are added, and stirred and dispersed uniformly at 3000r/min, so that the high weather-resistant heat-reflecting steel plate coil metal coating is obtained.
The high weather-resistant heat-reflection steel plate coil metal coatings prepared in the embodiments 1 to 3 of the invention are respectively coated on the surface of a galvanized steel plate coil, the galvanized steel plate coil is sent into an oven to be baked, and after the coating is completely dried, the coating is taken out to test the performance of the coating, and the results are shown in the following table 1:
TABLE 1 film property test results
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The high-weather-resistance heat-reflection steel plate coil metal coating is characterized by comprising the following components in percentage by mass:
24 percent of PVDF resin,
8 percent of acrylic resin,
2.5 percent of polymethyl methacrylate,
10.2 percent of aluminum powder,
40 percent of isophorone,
10 percent of diisobutyl ketone,
0.3 percent of defoaming agent,
0.6 percent of silane coupling agent,
0.4 percent of UV absorbent,
0.4 percent of leveling assistant,
3 percent of titanium dioxide,
0.6 percent of directional arrangement agent,
The sum of all the components is 100%;
the acrylic resin is copolymerized by methyl methacrylate and ethyl acrylate.
2. The highly weatherable, heat reflective steel sheet coil metallic coating of claim 1 wherein said UV absorber is 2-hydroxy-4-n-octoxybenzophenone.
3. The method for preparing the metallic paint of the high weather-resistant heat-reflecting steel plate coil material as claimed in claim 1, characterized by comprising the following steps: according to the proportion, acrylic resin, polymethyl methacrylate and aluminum powder are stirred and dispersed uniformly, then an organic solvent is added for ball milling until the fineness of the slurry is less than 10 mu m, and then PVDF resin, a defoaming agent, a silane coupling agent, a UV ultraviolet absorbent, a leveling assistant, titanium dioxide and a directional arrangement agent are added for stirring and dispersing uniformly, so that the high weather-resistant heat reflection steel plate coil metal coating is obtained.
4. The method for preparing the metallic paint of steel sheet coil with high weather resistance and heat reflection according to claim 3, wherein the stirring dispersion is carried out by a high speed stirrer with a stirring speed of 3000 r/min.
5. A galvanized steel sheet coated with the metallic paint for highly weatherable heat-reflective steel sheet coil according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011861.4A CN109135451B (en) | 2016-08-29 | 2016-08-29 | High-weather-resistance heat-reflection steel plate coil metal coating and preparation method thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011861.4A CN109135451B (en) | 2016-08-29 | 2016-08-29 | High-weather-resistance heat-reflection steel plate coil metal coating and preparation method thereof |
| CN201610747159.9A CN106280751B (en) | 2016-08-29 | 2016-08-29 | High durable heat reflection steel plate coiled material metallic paint and preparation method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610747159.9A Division CN106280751B (en) | 2016-08-29 | 2016-08-29 | High durable heat reflection steel plate coiled material metallic paint and preparation method thereof |
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| CN109135451B true CN109135451B (en) | 2021-04-16 |
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| CN201811011861.4A Active CN109135451B (en) | 2016-08-29 | 2016-08-29 | High-weather-resistance heat-reflection steel plate coil metal coating and preparation method thereof |
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| CN109612296B (en) * | 2018-12-01 | 2020-10-27 | 广州市粤新工程技术有限公司 | Cooling tower |
| CN111808505B (en) * | 2020-07-23 | 2021-10-26 | 福建省荔松新型材料有限公司 | Heat-reflection high-corrosion-resistance weather-resistant steel plate coil metal coating and preparation method thereof |
| CN113174176A (en) * | 2021-06-16 | 2021-07-27 | 江苏远松建筑装饰工程有限公司 | Cold-feeling-resistant coating and preparation method thereof, cold-feeling-resistant metal plate and manufacturing method thereof |
| CN114085582A (en) * | 2021-12-15 | 2022-02-25 | 惠州深赛尔化工有限公司 | Preparation method and use method of water-based building material color steel primer coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4659768A (en) * | 1986-02-03 | 1987-04-21 | Desoto, Inc. | Thermosetting fluorocarbon polymer coatings |
| CN100455634C (en) * | 2004-05-24 | 2009-01-28 | 上海振华造漆厂 | Environment-friendly type nontoxic fluorine contained coating for coiled material |
| CN100593551C (en) * | 2006-11-09 | 2010-03-10 | 中国化工建设总公司常州涂料化工研究院 | Thermoset acrylic resin for paint and high-temperature firing type polyvinylidene fluoride (PVDF) coiled material paint containing the same |
| CN101824251A (en) * | 2010-05-07 | 2010-09-08 | 杭州美多乐化工有限公司 | Polyvinylidene fluoride type fluorocarbon resin super weather-resistant coating and production method thereof |
| CN102653652B (en) * | 2012-05-02 | 2014-07-09 | 常州大学 | Nano composite fluorocarbon coating and preparation method thereof |
| CN103421374B (en) * | 2013-08-23 | 2015-10-21 | 苏州长盛机电有限公司 | A kind of art metal furniture coating |
| CN104448985A (en) * | 2013-11-30 | 2015-03-25 | 东莞市长安东阳光铝业研发有限公司 | Application of acrylic acid prepolymer in polyvinylidene fluoride (PVDF) coil coating |
| CN104293012A (en) * | 2014-09-26 | 2015-01-21 | 无锡七点建材有限公司 | Heat-reflecting thermal insulation coating and preparation method thereof |
| CN104449107A (en) * | 2014-11-24 | 2015-03-25 | 无锡市虎皇漆业有限公司 | High temperature baking type PVDF coating and preparation method thereof |
| CN104479474B (en) * | 2014-12-03 | 2017-02-22 | 东莞市长安东阳光铝业研发有限公司 | Super-weatherability fluorocarbon coating and preparation method thereof |
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| CN106280751B (en) | 2018-10-30 |
| CN106280751A (en) | 2017-01-04 |
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