CN111518465A - Anti-fading paint and preparation method thereof - Google Patents
Anti-fading paint and preparation method thereof Download PDFInfo
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- CN111518465A CN111518465A CN202010434966.1A CN202010434966A CN111518465A CN 111518465 A CN111518465 A CN 111518465A CN 202010434966 A CN202010434966 A CN 202010434966A CN 111518465 A CN111518465 A CN 111518465A
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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
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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
- C09D5/32—Radiation-absorbing 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
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
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- Inorganic Chemistry (AREA)
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Abstract
The invention belongs to the field of paint processing, and particularly relates to a fading-resistant paint and a preparation method thereof, wherein the fading-resistant paint is prepared from the following raw materials in parts by weight: 100-120 parts of polyurethane resin, 60-80 parts of polyvinylidene fluoride emulsion, 15-25 parts of nano zinc oxide, 40-55 parts of tea water, 20-25 parts of plant composite extract, 30-50 parts of coloring pigment, 10-20 parts of sodium polyacrylate, 0.5-1.5 parts of calcium chloride, 20-24 parts of auxiliary agent, 5-9 parts of vegetable oil and 70-80 parts of water; the anti-fading paint disclosed by the invention is good in weather resistance and color retention, so that the paint is not easy to fade, particularly overcomes the defects of poor weather resistance and easy fading of the existing exterior wall paint, and is wide in application range and simple to maintain; the addition of the sodium polyacrylate enables the coloring pigment particles to be wrapped in the gel, so that the coloring pigment particles are protected, and high color retention is achieved; the addition of the tea water enables the alkaloids and the polyphenols in the tea water to be capable of effectively fixing colors and enhancing the oxidation resistance, thereby further avoiding the color fading of the coloring pigment and improving the color retention performance.
Description
Technical Field
The invention relates to the field of paint processing, in particular to an anti-fading paint and a preparation method thereof.
Background
The exterior wall coating has the functions of decorating, protecting buildings and the like, can be used for coating the surface of a substance, can change the color, the patterns, the luster, the texture and the like of the substance, and improves the aesthetic value of an object. However, the exterior wall coating in the prior art has poor weather resistance, is easy to fade in the weathered days, and affects the appearance. The paint is often exposed under the burning sun, and molecular chains of the high polymer resin are gradually broken under the action of ultraviolet rays, so that micro cracks are generated on the surface of a paint coating, the pigment is exposed and easily falls off when encountering external force, and the fading phenomenon is caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing the anti-fading paint and the preparation method thereof, and the paint has good weather resistance, good color retention and difficult fading.
The technical scheme for solving the technical problems is as follows: the anti-fading paint is characterized by comprising the following raw materials in parts by weight:
100-120 parts of polyurethane resin, 60-80 parts of polyvinylidene fluoride emulsion, 15-25 parts of nano zinc oxide, 40-55 parts of tea water, 20-25 parts of plant composite extract, 30-50 parts of coloring pigment, 10-20 parts of sodium polyacrylate, 0.5-1.5 parts of calcium chloride, 20-24 parts of auxiliary agent, 5-9 parts of vegetable oil and 70-80 parts of water.
Further, the feed additive comprises the following raw materials in parts by weight: 115 parts of polyurethane resin, 65 parts of polyvinylidene fluoride emulsion, 20 parts of nano zinc oxide, 48 parts of tea water, 22 parts of plant composite extract, 32 parts of coloring pigment, 16 parts of sodium polyacrylate, 0.9 part of calcium chloride, 24 parts of auxiliary agent, 7 parts of vegetable oil and 78 parts of water.
Further, the auxiliary agent consists of a film-forming auxiliary agent, a defoaming agent, a dispersing agent and a flatting agent according to the mass ratio of 1:1:1:1, wherein the film-forming auxiliary agent is dipropylene glycol butyl ether, the defoaming agent is selected from an organic silicon defoaming agent, the flatting agent is polybutyl acrylate, and the dispersing agent is polyethylene wax.
Further, the plant composite extract is prepared from a scutellaria baicalensis extract and an aloe extract according to a mass ratio of 1: 1.
The invention also provides a preparation method of the fade-proof coating, which comprises the following preparation steps:
1) weighing the following raw materials in parts by weight: 100-120 parts of polyurethane resin, 60-80 parts of polyvinylidene fluoride emulsion, 15-25 parts of nano zinc oxide, 40-55 parts of tea water, 20-25 parts of plant composite extract, 30-50 parts of coloring pigment, 10-20 parts of sodium polyacrylate, 0.5-1.5 parts of calcium chloride, 20-24 parts of auxiliary agent, 5-9 parts of vegetable oil and 70-80 parts of water;
2) adding sodium polyacrylate, calcium chloride, nano zinc oxide and a coloring pigment into 30-40 parts of water to obtain a mixture A;
3) adding the polyurethane resin, the polyvinylidene fluoride emulsion and the plant composite extract into the mixture A in the step 2), uniformly mixing, and stirring and dispersing for 40-50 min under the stirring condition of 950-1000 rmp to obtain a mixture B;
4) adding tea water, vegetable oil, an auxiliary agent and the rest water into the mixture B obtained in the step 3), uniformly mixing, and stirring and dispersing for 30-35 min under the stirring condition of 700-820 rpm to obtain the anti-fading coating.
Further, in the step 1), the preparation method of the tea water comprises the following steps: adding water 6 times of the weight of the tea into the tea, steaming, naturally cooling after boiling, and filtering to obtain tea water.
Further, in the step 1), the plant composite extract is prepared by uniformly mixing a scutellaria baicalensis extract and an aloe extract according to a mass ratio of 1: 1.
Further, the preparation method of the radix scutellariae extract comprises the following steps: pulverizing 1-2 parts by weight of radix scutellariae to obtain radix scutellariae powder, adding 75-160 parts by weight of ethanol solution into the radix scutellariae powder, shaking and extracting at the constant temperature of 60-75 ℃ for 20-30 min, and filtering to obtain filtrate to obtain the radix scutellariae extract.
Further, the preparation method of the aloe extract comprises the following steps: pulverizing 1-2 parts by weight of aloe to obtain aloe powder, adding 60-150 parts by weight of ethanol solution into the aloe powder, extracting for 20-30 min at a constant temperature of 60-75 ℃ by shaking, and filtering to obtain filtrate to obtain aloe extract.
The invention at least comprises the following beneficial effects:
1. the paint has good weather resistance, good color retention and difficult fading; sodium ions of the sodium polyacrylate and chromium ions of the coloring pigment and zinc ions of the zinc oxide perform ion exchange reaction to form a cross-linked network structure, and the cross-linked network structure and the three-dimensional network structure are connected with each other to form hydrogel, so that the coloring pigment particles and the nano zinc oxide are coated in the gel, the coloring pigment particles are protected in the gel, the coloring pigment particles cannot easily fade due to external force abrasion, the coating has excellent color preservation performance, the slow release effect of the gel can prolong the effect aging of the nano zinc oxide, the nano zinc oxide has good chemical stability and ultraviolet absorption performance, ultraviolet rays are absorbed and shielded, the ultraviolet rays are prevented from damaging the coating, the color preservation performance of the coating is enhanced, the coating is not easy to fade, and the weather resistance is good; wherein, the addition of calcium chloride can increase the functionality of the hydrogel and accelerate the formation of the gel;
2. the plant composite extract has the performance of absorbing ultraviolet rays and also has the effect of resisting oxidation, so that the fading of the coating is further avoided; baicalin and baicalein contained in the radix Scutellariae extract have conjugated triple bond, and the baicalin absorbs ultraviolet UVA band and the baicalein absorbs ultraviolet UVB band; the components such as coumarin ester, mucopolysaccharide and barbaloin contained in the aloe extract can form an invisible film to naturally isolate and shield ultraviolet rays; the plant composite extract compounded by the radix scutellariae extract and the aloe extract has excellent ultraviolet absorption capacity and further enhances the color retention;
3. the alkaloid and the polyphenol in the tea water can be effectively fixed, and the shrinkage and cracking phenomena of the coating are improved by adding the vegetable oil.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
Example 1
1) Weighing the following raw materials in parts by weight: 100kg of polyurethane resin, 60kg of polyvinylidene fluoride emulsion, 15kg of nano zinc oxide, 40kg of tea water, 20kg of plant composite extract, 30kg of coloring pigment, 10kg of sodium polyacrylate, 0.5kg of calcium chloride, 5kg of dipropylene glycol butyl ether, 5kg of organic silicon defoamer, 5kg of polybutyl acrylate, 5kg of polyethylene wax, 5kg of vegetable oil and 70kg of water;
2) adding sodium polyacrylate, calcium chloride, nano zinc oxide and coloring pigment into 30kg of water to obtain a mixture A;
3) adding the polyurethane resin, the polyvinylidene fluoride emulsion and the plant composite extract into the mixture A in the step 2), uniformly mixing, and stirring and dispersing for 40min under the stirring condition of 950rmp to obtain a mixture B;
4) adding tea water, vegetable oil, dipropylene glycol butyl ether, an organic silicon defoamer, polybutyl acrylate, polyethylene wax and 40kg of water into the mixture B obtained in the step 3), uniformly mixing, and stirring and dispersing for 30min under the stirring condition of 700rpm to obtain the fading-resistant coating.
Specifically, in the step 1), the preparation method of the tea water comprises the following steps: adding water 6 times of the weight of the tea into the tea, steaming, naturally cooling after boiling, and filtering to obtain tea water. The plant composite extract is prepared by uniformly mixing a radix scutellariae extract and an aloe extract according to the mass ratio of 1: 1. The preparation method of the radix scutellariae extract comprises the following steps: pulverizing 1kg of Scutellariae radix to obtain Scutellariae radix powder, adding 75kg of ethanol solution into the Scutellariae radix powder, extracting at 60 deg.C under shaking for 20min, and filtering to obtain filtrate to obtain Scutellariae radix extract. The preparation method of the aloe extract comprises the following steps: pulverizing 1kg of Aloe to obtain Aloe powder, adding 60kg of ethanol solution into Aloe powder, extracting at 60 deg.C under shaking for 20min, and filtering to obtain filtrate to obtain Aloe extract.
Example 2
1) Weighing the following raw materials in parts by weight: 115kg of polyurethane resin, 65kg of polyvinylidene fluoride emulsion, 20kg of nano zinc oxide, 48kg of tea water, 22kg of plant composite extract, 32kg of coloring pigment, 16kg of sodium polyacrylate, 0.9kg of calcium chloride, 6kg of dipropylene glycol butyl ether, 6kg of organic silicon defoamer, 6kg of polybutyl acrylate, 6kg of polyethylene wax, 7kg of vegetable oil and 78kg of water;
2) adding sodium polyacrylate, calcium chloride, nano zinc oxide and coloring pigment into 35kg of water to obtain a mixture A;
3) adding the polyurethane resin, the polyvinylidene fluoride emulsion and the plant composite extract into the mixture A in the step 2), uniformly mixing, and stirring and dispersing for 42min under the stirring condition of 960rmp to obtain a mixture B;
4) adding tea water, vegetable oil, dipropylene glycol butyl ether, an organic silicon defoamer, polybutyl acrylate, polyethylene wax and 43kg of water into the mixture B obtained in the step 3), uniformly mixing, and stirring and dispersing for 32min under the stirring condition of 750rpm to obtain the fading-resistant coating.
Specifically, in the step 1), the preparation method of the tea water comprises the following steps: adding water 6 times of the weight of the tea into the tea, steaming, naturally cooling after boiling, and filtering to obtain tea water. The plant composite extract is prepared by uniformly mixing a radix scutellariae extract and an aloe extract according to the mass ratio of 1: 1. The preparation method of the radix scutellariae extract comprises the following steps: pulverizing 1kg of Scutellariae radix to obtain Scutellariae radix powder, adding 80kg of ethanol solution into the Scutellariae radix powder, extracting at 65 deg.C under shaking for 25min, and filtering to obtain filtrate to obtain Scutellariae radix extract. The preparation method of the aloe extract comprises the following steps: pulverizing 1kg of Aloe to obtain Aloe powder, adding 70kg of ethanol solution into Aloe powder, extracting at 68 deg.C under shaking for 25min, and filtering to obtain filtrate to obtain Aloe extract.
Example 3
1) Weighing the following raw materials in parts by weight: 118kg of polyurethane resin, 78kg of polyvinylidene fluoride emulsion, 23kg of nano zinc oxide, 52kg of tea water, 24kg of plant composite extract, 48kg of coloring pigment, 18kg of sodium polyacrylate, 1.3kg of calcium chloride, 6kg of dipropylene glycol butyl ether, 6kg of organic silicon defoamer, 6kg of polybutyl acrylate, 6kg of polyethylene wax, 8kg of vegetable oil and 78kg of water;
2) adding sodium polyacrylate, calcium chloride, nano zinc oxide and coloring pigment into 38kg of water to obtain a mixture A;
3) adding the polyurethane resin, the polyvinylidene fluoride emulsion and the plant composite extract into the mixture A in the step 2), uniformly mixing, and stirring and dispersing for 48min under the stirring condition of 990rmp to obtain a mixture B;
4) adding tea water, vegetable oil, dipropylene glycol butyl ether, an organic silicon defoamer, polybutyl acrylate, polyethylene wax and 40kg of water into the mixture B obtained in the step 3), uniformly mixing, and stirring and dispersing for 32min under the stirring condition of 800rpm to obtain the fading-resistant coating.
Specifically, in the step 1), the preparation method of the tea water comprises the following steps: adding water 6 times of the weight of the tea into the tea, steaming, naturally cooling after boiling, and filtering to obtain tea water. The plant composite extract is prepared by uniformly mixing a radix scutellariae extract and an aloe extract according to the mass ratio of 1: 1. The preparation method of the radix scutellariae extract comprises the following steps: pulverizing 2kg of Scutellariae radix to obtain Scutellariae radix powder, adding 150kg of ethanol solution into the Scutellariae radix powder, extracting at 70 deg.C under shaking for 30min, and filtering to obtain filtrate to obtain Scutellariae radix extract. The preparation method of the aloe extract comprises the following steps: pulverizing 2kg of Aloe to obtain Aloe powder, adding 135kg of ethanol solution into Aloe powder, extracting at 70 deg.C under shaking for 28min, and filtering to obtain filtrate to obtain Aloe extract.
Example 4
1) Weighing the following raw materials in parts by weight: 120kg of polyurethane resin, 80kg of polyvinylidene fluoride emulsion, 25kg of nano zinc oxide, 55kg of tea water, 25kg of plant composite extract, 50kg of coloring pigment, 20kg of sodium polyacrylate, 1.5kg of calcium chloride, 6kg of dipropylene glycol butyl ether, 6kg of organic silicon defoamer, 6kg of polybutyl acrylate, 6kg of polyethylene wax, 9kg of vegetable oil and 80kg of water;
2) adding sodium polyacrylate, calcium chloride, nano zinc oxide and coloring pigment into 40kg of water to obtain a mixture A;
3) adding the polyurethane resin, the polyvinylidene fluoride emulsion and the plant composite extract into the mixture A in the step 2), uniformly mixing, and stirring and dispersing for 50min under the stirring condition of 1000rmp to obtain a mixture B;
4) adding tea water, vegetable oil, dipropylene glycol butyl ether, an organic silicon defoamer, polybutyl acrylate, polyethylene wax and 40kg of water into the mixture B obtained in the step 3), uniformly mixing, and stirring and dispersing for 35min under the stirring condition of 820rpm to obtain the fading-resistant coating.
Specifically, in the step 1), the preparation method of the tea water comprises the following steps: adding water 6 times of the weight of the tea into the tea, steaming, naturally cooling after boiling, and filtering to obtain tea water. The plant composite extract is prepared by uniformly mixing a radix scutellariae extract and an aloe extract according to the mass ratio of 1: 1. The preparation method of the radix scutellariae extract comprises the following steps: pulverizing 2kg of Scutellariae radix to obtain Scutellariae radix powder, adding 160kg of ethanol solution into the Scutellariae radix powder, extracting at 75 deg.C under shaking for 30min, and filtering to obtain filtrate to obtain Scutellariae radix extract. The preparation method of the aloe extract comprises the following steps: pulverizing 2kg of Aloe to obtain Aloe powder, adding 150kg of ethanol solution into Aloe powder, extracting at 75 deg.C under shaking for 30min, and filtering to obtain filtrate to obtain Aloe extract.
And (3) detection test: the fading resistant coatings prepared in examples 1 to 4 were coated on substrates of 1m × 1m in size, and the color samples were designated as a, b, c, and d, respectively, and the initial color samples were designated as a1, b1, c1, and d1, respectively. And (3) taking the four samples a, b, c and d, simultaneously placing the four samples at the ultraviolet irradiation intensity of 600 mu W/cm2 and the distance of 20cm, carrying out simulated irradiation of natural light for 48h, carrying out comparative observation on the four samples, and marking the color samples of the color of the exposed samples as a2, b2, c2 and d2 respectively.
After detection, the color difference between a2 and a1, between b2 and b1, between c2 and c1, and between d2 and d2 are respectively 0 grade, so that the color fastness and fading standard of international dyeing is achieved, and the color retention and the weather resistance are good.
Therefore, the anti-fading paint prepared by the invention has good color retention, strong durability, difficult fading and wide application prospect.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields suitable for this invention, and further modifications can be readily made by those skilled in the art, so that the invention is not limited to the specific details, but rather can be modified and varied by those skilled in the art without departing from the general concept defined by the claims and their equivalents.
Claims (9)
1. The anti-fading paint is characterized by comprising the following raw materials in parts by weight:
100-120 parts of polyurethane resin, 60-80 parts of polyvinylidene fluoride emulsion, 15-25 parts of nano zinc oxide, 40-55 parts of tea water, 20-25 parts of plant composite extract, 30-50 parts of coloring pigment, 10-20 parts of sodium polyacrylate, 0.5-1.5 parts of calcium chloride, 20-24 parts of auxiliary agent, 5-9 parts of vegetable oil and 70-80 parts of water.
2. The fading resistant coating as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 115 parts of polyurethane resin, 65 parts of polyvinylidene fluoride emulsion, 20 parts of nano zinc oxide, 48 parts of tea water, 22 parts of plant composite extract, 32 parts of coloring pigment, 16 parts of sodium polyacrylate, 0.9 part of calcium chloride, 24 parts of auxiliary agent, 7 parts of vegetable oil and 78 parts of water.
3. The fading-resistant coating as claimed in claim 1 or 2, wherein the auxiliary agent comprises a film-forming auxiliary agent, a defoaming agent, a dispersing agent and a leveling agent according to a mass ratio of 1:1:1:1, the film-forming auxiliary agent is dipropylene glycol butyl ether, the defoaming agent is selected from an organic silicon defoaming agent, the leveling agent is polybutyl acrylate, and the dispersing agent is polyethylene wax.
4. The fading resistant coating as claimed in claim 1 or 2, wherein the plant composite extract is composed of scutellaria baicalensis extract and aloe extract according to a mass ratio of 1: 1.
5. The preparation method of the fade-proof coating is characterized by comprising the following preparation steps:
1) weighing the following raw materials in parts by weight: 100-120 parts of polyurethane resin, 60-80 parts of polyvinylidene fluoride emulsion, 15-25 parts of nano zinc oxide, 40-55 parts of tea water, 20-25 parts of plant composite extract, 30-50 parts of coloring pigment, 10-20 parts of sodium polyacrylate, 0.5-1.5 parts of calcium chloride, 20-24 parts of auxiliary agent, 5-9 parts of vegetable oil and 70-80 parts of water;
2) adding sodium polyacrylate, calcium chloride, nano zinc oxide and a coloring pigment into 30-40 parts of water to obtain a mixture A;
3) adding the polyurethane resin, the polyvinylidene fluoride emulsion and the plant composite extract into the mixture A in the step 2), uniformly mixing, and stirring and dispersing for 40-50 min under the stirring condition of 950-1000 rmp to obtain a mixture B;
4) adding tea water, vegetable oil, an auxiliary agent and the rest water into the mixture B obtained in the step 3), uniformly mixing, and stirring and dispersing for 30-35 min under the stirring condition of 700-820 rpm to obtain the anti-fading coating.
6. The method for preparing a fading resistant coating according to claim 5, wherein in the step 1), the tea water is prepared by: adding water 6 times of the weight of the tea into the tea, steaming, naturally cooling after boiling, and filtering to obtain tea water.
7. The preparation method of the fading resistant coating as claimed in claim 5, wherein in the step 1), the plant composite extract is formed by uniformly mixing a scutellaria baicalensis extract and an aloe extract according to a mass ratio of 1: 1.
8. The method for preparing the fading resistant coating as claimed in claim 7, wherein the scutellaria baicalensis extract is prepared by the following steps: pulverizing 1-2 parts by weight of radix scutellariae to obtain radix scutellariae powder, adding 75-160 parts by weight of ethanol solution into the radix scutellariae powder, shaking and extracting at the constant temperature of 60-75 ℃ for 20-30 min, and filtering to obtain filtrate to obtain the radix scutellariae extract.
9. The method for preparing a fading resistant coating according to claim 7, wherein the aloe vera extract is prepared by: pulverizing 1-2 parts by weight of aloe to obtain aloe powder, adding 60-150 parts by weight of ethanol solution into the aloe powder, extracting for 20-30 min at a constant temperature of 60-75 ℃ by shaking, and filtering to obtain filtrate to obtain aloe extract.
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| CN202010434966.1A CN111518465A (en) | 2020-05-21 | 2020-05-21 | Anti-fading paint and preparation method thereof |
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| CN202010434966.1A CN111518465A (en) | 2020-05-21 | 2020-05-21 | Anti-fading paint and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115093731A (en) * | 2022-04-11 | 2022-09-23 | 广东电网有限责任公司 | Fading-prevention fuzzy treatment preparation and fading-prevention treatment method for power grid signboard |
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| CN109233624A (en) * | 2018-09-21 | 2019-01-18 | 佛山齐安建筑科技有限公司 | A kind of preparation method of high adhesion force antiultraviolet anti-pollution flashover coating |
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| CN107903773A (en) * | 2017-11-09 | 2018-04-13 | 河北晨阳工贸集团有限公司 | A kind of water-fast, antibacterial, automatically cleaning sealing wax and preparation method thereof |
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| CN115093731A (en) * | 2022-04-11 | 2022-09-23 | 广东电网有限责任公司 | Fading-prevention fuzzy treatment preparation and fading-prevention treatment method for power grid signboard |
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