CN113930095A - Environment-friendly high-reflectivity powder coating and preparation process thereof - Google Patents
Environment-friendly high-reflectivity powder coating and preparation process thereof Download PDFInfo
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- CN113930095A CN113930095A CN202111439720.4A CN202111439720A CN113930095A CN 113930095 A CN113930095 A CN 113930095A CN 202111439720 A CN202111439720 A CN 202111439720A CN 113930095 A CN113930095 A CN 113930095A
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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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
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
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Abstract
The invention relates to an environment-friendly high-reflectivity powder coating and a preparation process thereof, wherein the powder coating comprises the following components in parts by mass: 50-70 parts of a coating substrate, 30-40 parts of a functional material, wherein the functional material comprises 20-30 parts of a polyester resin composition, 2-4 parts of a curing agent, 1-2 parts of a flatting agent, 2-3 parts of a filler, 0.1-0.5 part of a defoaming agent and 0.1-0.5 part of a thickening agent, the polyester resin composition comprises 16-18 parts of a polyester resin and 2-4 parts of a modified polyolefin resin, 5-6 parts of a modified acrylic resin is also mixed in the polyester resin composition, and 3-5 parts of a nano silver antibacterial agent is included in the modified acrylic resin, the preparation process comprises the steps of premixing the raw materials, sequentially carrying out melt extrusion, cooling, tabletting and grinding to prepare a powder coating with the particle size of 15-20 mu m, wherein the powder coating can not fall off due to the action of microorganisms when being attached to a carrier, the stability of the powder coating attached to the surface is improved, the durability of reflection is improved, and the powder coating is suitable for industrial production and has strong practicability.
Description
Technical Field
The invention belongs to the technical field of powder coatings, and particularly relates to an environment-friendly high-reflectivity powder coating and a preparation process thereof.
Background
The reflective heat insulation coating is a functional coating which can reduce the heat accumulation inside the coated object by reflecting visible light and infrared rays in sunlight, thereby achieving the purposes of saving energy, improving the living and working environment of personnel, reducing the temperature of the operating environment of equipment and the like.
The reflective heat-insulating coating is mainly applied to occasions needing reducing indoor temperature in the daytime in the field of constructional engineering, such as large buildings of grain depots, oil depots, ammunition depots and the like, and the use of an air conditioner has large energy consumption and is difficult to realize. And the high-reflectivity heat insulation coating is adopted on the surface of the building, so that the absorption of the building to solar radiation heat can be reduced, the temperature rise of the surface of the building caused by the absorption of solar radiation is prevented, and the heat transfer into the room is reduced.
At present, because a large amount of fillers are added to achieve an ideal reflective heat insulation effect, the commercially available reflective heat insulation coating is difficult to avoid the defects of poor adhesion, poor weather resistance and the like in application, and the reflective heat insulation coating cracks, falls off, bulges and the like in a short time, and especially, visible cracks can appear under long-time irradiation of ultraviolet rays, so that the reflective heat insulation effect is reduced or lost.
Disclosure of Invention
In order to improve the defects, the invention provides an environment-friendly high-reflectivity powder coating and a preparation process thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an environment-friendly high-reflectivity powder coating comprises the following components in parts by mass: 50-70 parts of a coating substrate, 30-40 parts of a functional material, wherein the functional material comprises 20-30 parts of a polyester resin composition, 2-4 parts of a curing agent, 1-2 parts of a flatting agent, 2-3 parts of a filler, 0.1-0.5 part of a defoaming agent and 0.1-0.5 part of a thickening agent, the polyester resin composition comprises 16-18 parts of a polyester resin and 2-4 parts of a modified polyolefin resin, the polyester resin composition is also mixed with 5-6 parts of a modified acrylic resin, and the modified acrylic resin comprises 3-5 parts of a nano silver antibacterial agent.
Preferably, the curing agent is hydroxyl acrylamide.
Preferably, the leveling agent is any one of acrylic, organosilicon and fluorocarbon.
As a preferred scheme, the filler is one of titanium dioxide and barium sulfate.
As a preferred scheme, the preparation process of the environment-friendly high-reflectivity powder coating comprises the following steps of: coating matrix, polyester resin composition, curing agent, leveling agent, filler, defoaming agent, thickening agent and the like; premixing the raw materials, sequentially performing melt extrusion, cooling and tabletting, and performing grinding treatment after tabletting to obtain the powder coating with the particle size of 15-20 mu m.
Preferably, the time for premixing the raw materials is controlled to be 10-15 min.
Preferably, the outlet temperature of the premixed raw materials during melt extrusion is controlled at 120-130 ℃.
Compared with the prior art, the invention has the beneficial effects that: the powder coating improves the water resistance, the bonding strength and the light transmittance of the powder coating by using the doping of the modified acrylic resin, greatly improves the heat resistance and the aging resistance of a coating, and simultaneously, due to the addition of the nano-silver antibacterial agent, the powder coating can not fall off due to the action of microorganisms when being attached to a carrier, the stability of the powder coating when being attached to the surface is improved, the reflecting durability is improved, and the powder coating is suitable for industrial production and has strong practicability.
Detailed Description
The technical solution of the present application is further described below.
An environment-friendly high-reflectivity powder coating comprises the following components in parts by mass: 50-70 parts of a coating substrate, 30-40 parts of a functional material, wherein the functional material comprises 20-30 parts of a polyester resin composition, 2-4 parts of a curing agent, 1-2 parts of a flatting agent, 2-3 parts of a filler, 0.1-0.5 part of a defoaming agent and 0.1-0.5 part of a thickening agent, the polyester resin composition comprises 16-18 parts of a polyester resin and 2-4 parts of a modified polyolefin resin, 5-6 parts of a modified acrylic resin is also mixed in the polyester resin composition, and 3-5 parts of a nano-silver antibacterial agent is contained in the modified acrylic resin. The curing agent is hydroxyl acrylamide. The flatting agent is any one of acrylic acid, organic silicon and fluorocarbon compounds. The filler is one of titanium dioxide and barium sulfate.
The preparation process of the environment-friendly high-reflectivity powder coating comprises the following steps: preparing raw materials: coating matrix, polyester resin composition, curing agent, leveling agent, filler, defoaming agent, thickening agent and the like; premixing the raw materials, sequentially performing melt extrusion, cooling and tabletting, and performing grinding treatment after tabletting to obtain the powder coating with the particle size of 15-20 mu m. The premixing time of the raw materials is controlled within 10-15 min. The outlet temperature of the premixed raw materials is controlled at 120-130 ℃ during melt extrusion.
The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (7)
1. The environment-friendly high-reflectivity powder coating is characterized by comprising the following components in parts by mass: 50-70 parts of a coating substrate, 30-40 parts of a functional material, wherein the functional material comprises 20-30 parts of a polyester resin composition, 2-4 parts of a curing agent, 1-2 parts of a flatting agent, 2-3 parts of a filler, 0.1-0.5 part of a defoaming agent and 0.1-0.5 part of a thickening agent, the polyester resin composition comprises 16-18 parts of a polyester resin and 2-4 parts of a modified polyolefin resin, the polyester resin composition is also mixed with 5-6 parts of a modified acrylic resin, and the modified acrylic resin comprises 3-5 parts of a nano silver antibacterial agent.
2. The environment-friendly high-reflectivity powder coating of claim 1, wherein: the curing agent is hydroxyl acrylamide.
3. The environment-friendly high-reflectivity powder coating of claim 2, wherein: the flatting agent is any one of acrylic acid, organic silicon and fluorocarbon compounds.
4. The environment-friendly high-reflectivity powder coating of claim 3, wherein: the filler is one of titanium dioxide and barium sulfate.
5. The preparation process of the environment-friendly high-reflectivity powder coating as claimed in any one of claims 1 to 4, which is characterized in that: preparing raw materials: coating matrix, polyester resin composition, curing agent, leveling agent, filler, defoaming agent, thickening agent and the like; premixing the raw materials, sequentially performing melt extrusion, cooling and tabletting, and performing grinding treatment after tabletting to obtain the powder coating with the particle size of 15-20 mu m.
6. The environment-friendly high-reflectivity powder coating of claim 5, wherein: the premixing time of the raw materials is controlled within 10-15 min.
7. The environment-friendly high-reflectivity powder coating of claim 5, wherein: the outlet temperature of the premixed raw materials is controlled at 120-130 ℃ during melt extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111439720.4A CN113930095A (en) | 2021-11-30 | 2021-11-30 | Environment-friendly high-reflectivity powder coating and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111439720.4A CN113930095A (en) | 2021-11-30 | 2021-11-30 | Environment-friendly high-reflectivity powder coating and preparation process thereof |
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| Publication Number | Publication Date |
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| CN113930095A true CN113930095A (en) | 2022-01-14 |
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| CN202111439720.4A Pending CN113930095A (en) | 2021-11-30 | 2021-11-30 | Environment-friendly high-reflectivity powder coating and preparation process thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1462784A (en) * | 2003-06-02 | 2003-12-24 | 四川大学 | Weather-resistant type coating material of acrylic acid-polyester powder modified by inorganic nano composite material, and its prepn. method |
| CN104140746A (en) * | 2014-07-28 | 2014-11-12 | 漳州三德利油漆涂料有限公司 | Composite type functional infrared reflection engineering machine powder coating and production technology thereof |
| CN109294380A (en) * | 2018-09-26 | 2019-02-01 | 河北麦森钛白粉有限公司 | A kind of anti-infrared nanometer titania powder coating and preparation method thereof |
| CN110128908A (en) * | 2019-04-26 | 2019-08-16 | 浙江绿能塑粉有限公司 | A kind of lamps and lanterns cavity environment-friendly type high reflectance powdery paints and preparation method thereof |
-
2021
- 2021-11-30 CN CN202111439720.4A patent/CN113930095A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1462784A (en) * | 2003-06-02 | 2003-12-24 | 四川大学 | Weather-resistant type coating material of acrylic acid-polyester powder modified by inorganic nano composite material, and its prepn. method |
| CN104140746A (en) * | 2014-07-28 | 2014-11-12 | 漳州三德利油漆涂料有限公司 | Composite type functional infrared reflection engineering machine powder coating and production technology thereof |
| CN109294380A (en) * | 2018-09-26 | 2019-02-01 | 河北麦森钛白粉有限公司 | A kind of anti-infrared nanometer titania powder coating and preparation method thereof |
| CN110128908A (en) * | 2019-04-26 | 2019-08-16 | 浙江绿能塑粉有限公司 | A kind of lamps and lanterns cavity environment-friendly type high reflectance powdery paints and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 崔玉民等: "《绿色环保功能涂料》", 31 January 2019, 中国书籍出版社 * |
| 张兴华: "《水基涂料 原料选择 配方设计 生产工艺》", 31 January 2000, 中国轻工业出版社 * |
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Application publication date: 20220114 |