CN111393959A - Mildew-proof antibacterial water-based baking varnish coating and preparation method thereof - Google Patents
Mildew-proof antibacterial water-based baking varnish coating and preparation method thereof Download PDFInfo
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- CN111393959A CN111393959A CN202010384242.0A CN202010384242A CN111393959A CN 111393959 A CN111393959 A CN 111393959A CN 202010384242 A CN202010384242 A CN 202010384242A CN 111393959 A CN111393959 A CN 111393959A
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a mildew-proof antibacterial water-based baking varnish coating and a preparation method thereof, wherein water is used as a diluent, the existing oil-based two-coating process is replaced by one-coating water-based high-temperature baking varnish, the cost and the energy consumption are reduced, the performance of the coating completely meets the REAH.ROHS standard, the coating also meets the VOC emission standard, is safe and environment-friendly, has long-acting mildew-proof antibacterial action, good adhesive force and flexibility, is convenient to process and form various products, is excellent in acid-base resistance and salt mist weather resistance, is simple and quick to construct, can form a film under the baking condition of 180-330 ℃, has short baking time of 30-60 seconds, forms a film and is cured, saves the cost, reduces the energy consumption, has excellent adhesive force and flexibility on hardware, galvanized plates and steel, has chemical resistance, and meets the existing coating standards for domestic appliances and building materials in the.
Description
Technical Field
The invention relates to the technical field of new materials, in particular to a mildew-proof antibacterial water-based baking varnish coating used for household appliances, building materials and coiled materials and a preparation method thereof.
Background
At present, the traditional oily high-temperature baking varnish is widely applied to the protection and decoration of products such as household appliances, building materials, coiled materials and the like. However, the oily baking type high-temperature baking paint adopts a two-coating construction process, and uses petroleum solvents such as benzene, ether and the like as solvents, so that potential hazards exist in safety, environmental protection, storage and transportation, the environment is seriously polluted, the human health is harmed, the labor cost is increased, meanwhile, a large amount of petroleum resources are consumed, meanwhile, a large amount of solvents have great potential safety hazards, and the water-based baking paint type industrial paint is widely concerned.
Disclosure of Invention
The invention aims to solve the technical problem of providing a mildew-proof antibacterial water-based baking varnish coating and a preparation method thereof, so as to solve the problems of safety and environmental protection of the conventional oily high-temperature baking varnish and reduce the cost.
To solve the above technical problems, the present invention is achieved by the following technical solutions.
The mildew-proof antibacterial water-based baking varnish coating comprises the following components in parts by weight:
preferably, the water-based baking varnish coating also comprises the following components in parts by weight: 2-20 parts of pigment.
Preferably, the water-based baking varnish coating also comprises the following components in parts by weight: 3-5 parts of anticorrosive pigment.
Preferably, the water-based baking varnish coating also comprises the following components in parts by weight: 0.5 to 1 portion of aqueous antibacterial agent.
Preferably, the leveling agent is a water-based silane modified surface auxiliary agent.
Preferably, the coupling agent is a waterborne epoxy modified silane assistant.
Preferably, the dispersant is an aqueous acrylic dispersant.
Preferably, the saturant is an aqueous silicone saturant.
The preparation method of the mildew-proof antibacterial water-based baking varnish coating comprises the following steps:
a: adding water-based polyester hybrid resin into a stirring open drawn cylinder with a certain volume, adding deionized water, stirring and dispersing, and adding a water-based acrylic acid dispersant, stirring and dispersing;
b: adding pigment, stirring and dispersing, adding ethylene glycol butyl ether, adding anticorrosive pigment, dispersing, adding water-based organic silicon saturant, adding antibacterial agent, dispersing and grinding, wherein the grinding and dispersing fineness reaches the use fineness of the paint;
c: adding water-based high-methyl-etherified amino resin, stirring and dispersing, then sequentially adding a water-based epoxy modified silane coupling agent, a water-based acid catalyst, a water-based silicon modified surface leveling agent and dipropylene glycol butyl ether, stirring and adding, stirring and dispersing, then adding dimethyl ethanol ammonia, stirring and dispersing to finish paint preparation.
The invention has the following beneficial effects:
the mildew-proof antibacterial water-based baking varnish coating and the preparation method thereof provided by the invention have the following advantages:
the invention takes water as a diluent, adopts one-coating water-based high-temperature baking paint to replace the prior oil-based two-coating process, reduces the cost and the energy consumption, has the performance completely in line with the REAH.ROHS standard, also in line with the VOC emission standard, is safe and environment-friendly, has long-acting mildew-proof antibacterial action on a paint film, has good adhesive force and good flexibility, is convenient for processing and forming various products, has excellent acid and alkali resistance and salt mist weather property, is convenient and quick to construct, can form a film under the baking condition of 180-330 ℃, has short baking time of 30-60 seconds, saves the cost, reduces the energy consumption, has excellent adhesive force, flexibility and chemical resistance on hardware, galvanized plates and steel, and conforms to the prior coating standard for household appliances and building materials of the people's republic of China.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The weight of each component mentioned in the description of the embodiment of the present invention may not only refer to the specific content of each component, but also represent the proportional relationship of the weight of each component, and therefore, the content of each component of the composition according to the description of the embodiment of the present invention is scaled up or down within the scope disclosed in the description of the embodiment of the present invention. Specifically, the weight described in the description of the embodiments of the present invention may be a unit of weight known in the chemical industry, such as μ g, mg, g, and kg.
In the invention, the waterborne polyester hybrid resin is waterborne polyester, the adhesion force is improved through processing hybridization, the toughness and the high temperature resistance are realized, the waterborne high methylated amino resin is sold on the market, the waterborne acrylic acid dispersing agent is sold on the market, the pigment (titanium dioxide and carbon black are sold on the market) waterborne organic silicon defoamer is sold on the market, the anticorrosion pigment is sold on the market, the waterborne epoxy modified silane coupling agent is sold on the market, the waterborne antibacterial agent is sold on the market, the waterborne silicon modified surface leveling agent is sold on the market, and the waterborne acid catalyst is sold on the market.
The preparation method comprises the following steps: a: adding water-based polyester hybrid resin into a stirring open drawn cylinder with a certain volume, adding deionized water, stirring and dispersing, and adding a water-based acrylic acid dispersant, stirring and dispersing;
b: adding pigment, stirring and dispersing, adding ethylene glycol butyl ether, adding anticorrosive pigment, dispersing, adding water-based organic silicon saturant, adding antibacterial agent, dispersing and grinding, wherein the grinding and dispersing fineness reaches the use fineness of the paint;
c: adding water-based high-methyl-etherified amino resin, stirring and dispersing, then sequentially adding a water-based epoxy modified silane coupling agent, a water-based acid catalyst, a water-based silicon modified surface leveling agent and dipropylene glycol butyl ether, stirring and adding, stirring and dispersing, then adding dimethyl ethanol ammonia, stirring and dispersing to finish paint preparation.
In the following examples, the stirring dispersion temperature was controlled to be within 40 ℃ throughout the production process.
Example one
The following components are respectively weighed according to the weight ratio (part):
selecting a certain container, opening a cylinder, adding the waterborne polyester hybrid resin, adding deionized water, stirring and dispersing for 15 minutes at the rotating speed of 1500 revolutions per minute, adding a waterborne acrylic acid dispersing agent, stirring and dispersing for 15 minutes at the rotating speed of 1500 revolutions per minute, adding a pigment, dispersing for 20 minutes at the rotating speed of 2000 revolutions per minute, adding ethylene glycol butyl ether, adding a waterborne organic silicon defoaming agent, dispersing for 10 minutes at the rotating speed of 1200 revolutions per minute, and grinding by a grinder.
After the fineness reaches the standard fineness of the paint and is 5mm, the following steps are added: preparing paint, adding the water-based high methylated amino resin, stirring and dispersing for 10 minutes at the rotating speed of 1500 revolutions per minute, and adding the mixture while stirring. Stirring and dispersing the water-based epoxy modified silane coupling agent, the water-based acid catalyst, the water-based silicon modified surface leveling agent and the dipropylene glycol butyl ether for 10 minutes at the rotating speed of 1500 revolutions per minute, adding the dimethyl ethanol ammonia, stirring and dispersing for 20 minutes at the rotating speed of 2000 revolutions per minute. The construction viscosity required by the deionized water is adjusted, and the paint can be used for water-based one-coating home appliances, building materials and coil coatings.
Example two
The following components are respectively weighed according to the weight ratio (part):
selecting a certain container, opening a cylinder, adding the waterborne polyester hybrid resin, adding deionized water, stirring and dispersing for 15 minutes at the rotating speed of 1500 revolutions per minute, adding a waterborne acrylic acid dispersant, stirring and dispersing for 15 minutes at the rotating speed of 1500 revolutions per minute, adding a pigment, dispersing for 20 minutes at the rotating speed of 2000 revolutions per minute, adding ethylene glycol monobutyl ether, adding an anticorrosive pigment, dispersing for 10 minutes at the rotating speed of 2000 revolutions per minute, adding a waterborne organic silicon defoamer for 20 minutes, adding an antibacterial agent, dispersing for 10 minutes at the rotating speed of 1200 revolutions per minute, and grinding by a grinder.
After the fineness reaches the standard fineness of the paint and is 5mm, the following steps are added: preparing paint, adding the water-based high methylated amino resin, stirring and dispersing for 10 minutes at the rotating speed of 1800 rpm, and adding the mixture while stirring. Stirring and dispersing the waterborne epoxy modified silane coupling agent, the waterborne acid catalyst, the waterborne silicon modified surface leveling agent and the dipropylene glycol butyl ether for 10 minutes at the rotating speed of 1200 revolutions per minute, adding the dimethylethanolamine, stirring and dispersing for 20 minutes at the rotating speed of 2500 revolutions per minute. The construction viscosity required by the deionized water is adjusted, and the paint can be used for water-based one-coating home appliances, building materials and coil coatings.
EXAMPLE III
The following components are respectively weighed according to the weight ratio (part):
selecting a certain container, opening a cylinder, adding the waterborne polyester hybrid resin, adding deionized water, stirring and dispersing for 15 minutes at the rotating speed of 1500 revolutions per minute, adding a waterborne acrylic acid dispersant, stirring and dispersing for 15 minutes at the rotating speed of 1800 revolutions per minute, adding ethylene glycol monobutyl ether, adding an anticorrosive pigment, dispersing for 10 minutes at the rotating speed of 2000 revolutions per minute, adding a waterborne organic silicon defoamer for 20 minutes, adding an antibacterial agent, dispersing for 10 minutes at the rotating speed of 1500 revolutions per minute, and grinding by a grinder.
After the fineness reaches the standard fineness of the paint and is 5mm, the following steps are added: preparing paint, adding the water-based high methylated amino resin, stirring and dispersing for 10 minutes at the rotating speed of 1500 revolutions per minute, and adding the mixture while stirring. Stirring and dispersing the waterborne epoxy modified silane coupling agent, the waterborne acid catalyst, the waterborne silicon modified surface leveling agent and the dipropylene glycol butyl ether for 10 minutes at the rotating speed of 2000 revolutions per minute, and then adding the dimethylethanolamine to stir and disperse for 20 minutes at the rotating speed of 2000 revolutions per minute. The construction viscosity required by the deionized water is adjusted, and the paint can be used for water-based one-coating home appliances, building materials and coil coatings.
Example four
The following components are respectively weighed according to the weight ratio (part):
selecting a certain container, opening a cylinder, adding the waterborne polyester hybrid resin, adding deionized water, stirring and dispersing for 15 minutes at the rotating speed of 1500 revolutions per minute, adding a waterborne acrylic acid dispersant, stirring and dispersing for 15 minutes at the rotating speed of 1500 revolutions per minute, adding a pigment, dispersing for 20 minutes at the rotating speed of 1500 revolutions per minute, adding ethylene glycol butyl ether, adding an anticorrosive pigment, dispersing for 10 minutes at the rotating speed of 2500 revolutions per minute, adding a waterborne organic silicon defoamer for 20 minutes, and grinding by a grinder.
After the fineness reaches the standard fineness of the paint and is 5mm, the following steps are added: preparing paint, adding the water-based high methylated amino resin, stirring and dispersing for 10 minutes at the rotating speed of 2000 revolutions per minute, and adding the mixture while stirring. Stirring and dispersing the waterborne epoxy modified silane coupling agent, the waterborne acid catalyst, the waterborne silicon modified surface leveling agent and the dipropylene glycol butyl ether for 10 minutes at the rotating speed of 2000 revolutions per minute, adding the dimethylethanolamine, stirring and dispersing for 20 minutes at the rotating speed of 2500 revolutions per minute. The construction viscosity required by the deionized water is adjusted, and the paint can be used for water-based one-coating home appliances, building materials and coil coatings.
Detecting various technical indexes of the prepared coating, wherein the performance test indexes are shown in table 1:
TABLE 1
The proportions of the components can be modified, tested and modulated within the range according to the requirements of printed products, so as to meet the printing requirements of the products.
The mildew-proof antibacterial water-based baking varnish coating and the preparation method thereof provided by the invention are described in detail, the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. The mildew-proof antibacterial water-based baking varnish coating is characterized by comprising the following components in parts by weight:
2. the mildewproof antibacterial water-based baking varnish paint of claim 1, wherein: the water-based baking varnish coating also comprises the following components in parts by weight: 2-20 parts of pigment.
3. The mildewproof antibacterial water-based baking varnish paint of claim 1, wherein: the water-based baking varnish coating also comprises the following components in parts by weight: 3-5 parts of anticorrosive pigment.
4. The mildewproof antibacterial water-based baking varnish paint of claim 1, wherein: the water-based baking varnish coating also comprises the following components in parts by weight: 0.5 to 1 portion of aqueous antibacterial agent.
5. The mildewproof antibacterial water-based baking varnish paint of claim 1, wherein: the leveling agent is a water-based silane modified surface auxiliary agent.
6. The mildewproof antibacterial water-based baking varnish paint of claim 1, wherein: the coupling agent is a waterborne epoxy modified silane auxiliary agent.
7. The mildewproof antibacterial water-based baking varnish paint of claim 1, wherein: the dispersant is a water-based acrylic dispersant.
8. The mildewproof antibacterial water-based baking varnish paint of claim 1, wherein: the saturant is an aqueous silicone saturant.
9. A method for preparing the mildewproof and antibacterial water-based baking varnish paint according to claim 1, which is characterized by comprising the following steps:
a: adding water-based polyester hybrid resin into a stirring open drawn cylinder with a certain volume, adding deionized water, stirring and dispersing, and adding a water-based acrylic acid dispersant, stirring and dispersing;
b: adding pigment, stirring and dispersing, adding ethylene glycol butyl ether, adding anticorrosive pigment, dispersing, adding water-based organic silicon saturant, adding antibacterial agent, dispersing and grinding, wherein the grinding and dispersing fineness reaches the use fineness of the paint;
c: adding water-based high-methyl-etherified amino resin, stirring and dispersing, then sequentially adding a water-based epoxy modified silane coupling agent, a water-based acid catalyst, a water-based silicon modified surface leveling agent and dipropylene glycol butyl ether, stirring and adding, stirring and dispersing, then adding dimethyl ethanol ammonia, stirring and dispersing to finish paint preparation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114854272A (en) * | 2022-06-23 | 2022-08-05 | 珠海市宏州新材料科技有限公司 | Waterborne modified polyester paint for lunch boxes |
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Application publication date: 20200710 |