CN116120806A - Ultraviolet-proof paint and preparation method thereof - Google Patents
Ultraviolet-proof paint and preparation method thereof Download PDFInfo
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- CN116120806A CN116120806A CN202211705755.2A CN202211705755A CN116120806A CN 116120806 A CN116120806 A CN 116120806A CN 202211705755 A CN202211705755 A CN 202211705755A CN 116120806 A CN116120806 A CN 116120806A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- 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
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The invention relates to an ultraviolet-proof paint and a preparation method thereof, wherein the raw materials for preparing the paint comprise the following components: 40-50 parts of self-emulsifying epoxy resin emulsion, 10-15 parts of epoxy resin modified silicone-acrylic emulsion, 15-25 parts of alkyd resin, 25-55 parts of stearic acid and polyvinylpyrrolidone modified nano titanium dioxide, 5-9 parts of dispersing agent, 0.5-2 parts of defoaming agent, 1-3 parts of wetting agent, 0.2-0.4 part of dioctyl phthalate and 100-200 parts of water; the water does not include water contained in the modified nano-titania; the dispersant comprises a combination of sodium oleate and polyethylene glycol. The paint disclosed by the invention has good storage stability and high hardness, and is favorable for resisting physical damage; the water resistance, acid and alkali resistance and scrubbing resistance are excellent; excellent ultraviolet resistance.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to an ultraviolet-proof paint and a preparation method thereof.
Background
Light, heat, water, oxygen, inorganic salts, organic solvents, pollutants, and the like in the environment are all major factors contributing to the degradation of the film-forming material. Among these factors, solar ultraviolet radiation is the most leading cause of degradation of the film-forming material, and is also the most common factor. From the moment of use, exterior wall coatings begin their irreversible degradation process. Therefore, it is necessary to enhance the ultraviolet-proof performance of the exterior wall coating, and the simplest and most effective method is to add an additive having the ultraviolet-proof performance, mainly an organic ultraviolet-screening agent and an inorganic ultraviolet-screening agent, to the exterior wall coating.
The ultraviolet-proof paint is a paint which can effectively resist ultraviolet irradiation and ageing. In the United states, fosterProducts uses nano zinc oxide, hydroxyethyl cellulose as a thickener, other additives and water are added for full dispersion, and then the mixture is stirred and mixed with acrylic emulsion to prepare the water-based paint resistant to ultraviolet aging. In addition, the company Elementis in the U.S. uses nano ZnO with the particle size of about 80nm produced by the company to compound with a certain solvent, resin, auxiliary agent and organic ultraviolet resistance agent to prepare an ultraviolet resistance premix which can be used as a part of paint and plastic formulation.
The organic ultraviolet shielding agents widely used at present comprise o-hydroxybenzophenone, o-hydroxybenzotriazole, o-hydroxybenzotriazine, salicylate, benzoate, cinnamate, oxanilide and the like, but the addition of the organic ultraviolet shielding agents has a plurality of defects in improving the ultraviolet resistance of the coating. Firstly, the organic ultraviolet screening agent has certain toxicity; secondly, the organic ultraviolet screening agent has selectivity on ultraviolet absorption; finally, the ultraviolet resistance of the organic ultraviolet screening agent gradually weakens or even disappears with the time.
The inorganic ultraviolet screening agent mainly comprises nano titanium dioxide, nano silicon dioxide, nano zinc oxide and the like. Nano titanium dioxide is attracting attention due to the advantages of stable chemical properties, non-toxicity, low price, strong ultraviolet shielding performance and the like. The ultraviolet shielding performance of the nano titanium dioxide is strong, and the smaller the particle size is, the stronger the ultraviolet shielding performance is, and the submicron titanium dioxide hardly shields ultraviolet rays. The ultraviolet shielding performance of the nano titanium dioxide is determined by the absorption capacity and the scattering capacity of the nano titanium dioxide. The absorption of ultraviolet light by nano-titania is mainly due to its semiconducting properties. Under ultraviolet irradiation, the electrons are excited and then transferred from the valence band to the conduction band, thereby causing ultraviolet absorption. The nano titanium dioxide not only has the property of absorbing ultraviolet rays, but also has the property of scattering ultraviolet rays. Ultraviolet rays are essentially electromagnetic waves, and when ultraviolet rays act on nano titanium dioxide in a medium, electrons in the nano titanium dioxide particles are forced to vibrate (the vibration frequency of the electrons is the same as that of incident light waves) because the size of the nano titanium dioxide particles is smaller than the wavelength of the ultraviolet rays, and the electrons become a secondary wave source and emit electromagnetic waves in all directions, namely the scattering of the ultraviolet rays.
However, the problem of dispersibility and stability of nano titanium dioxide in the paint is a key problem to be solved by the nano paint. Aiming at the problem, chinese patent No. 105017871B discloses an ultraviolet-proof exterior wall coating and a preparation method thereof, wherein the preparation method comprises the steps of firstly coating a layer of acrylic polymer on the surface of nano titanium dioxide to obtain nano titanium dioxide/acrylic polymer composite emulsion, then fully mixing the composite emulsion with the acrylic polymer exterior wall emulsion, and then adding pigment, filler, auxiliary agent and water. The coating coats a layer of acrylic polymer on the surface of the nano titanium dioxide, so that the dispersibility and stability of the nano titanium dioxide in the coating are obviously improved, nano titanium dioxide agglomerates are prevented from being formed, and the ultraviolet resistance of the agglomerates is greatly reduced or even eliminated. The coating has the characteristics of excellent water resistance, alkali resistance, scrubbing resistance and the like of the acrylate polymer outer wall coating, improves the hardness and ultraviolet resistance, and prolongs the service life of the coating. However, the coating is prepared by coating a layer of acrylic polymer on the surface of nano titanium dioxide to obtain nano titanium dioxide/acrylic polymer composite emulsion, and the preparation process is complex and the production cost is high.
In addition, chinese patent No. 104403428B discloses an ultraviolet-proof paint without toxic ultraviolet absorbent and a preparation method thereof, wherein the paint is prepared from the following raw materials in parts by weight: 30-40 parts of polystyrene latex; 10-16 parts of epoxy resin primer; 2-8 parts of leveling agent; 17-20 parts of ultraviolet absorber; 10-18 parts of inorganic filler; the ultraviolet absorber consists of the following components in parts by weight: 14-15 parts of 2-hydroxy-4-n-octoxybenzophenone; 3-5 parts of phenyl o-hydroxybenzoate. The ultraviolet-proof paint disclosed by the invention does not contain toxic ultraviolet absorbent, is safe and harmless to human body and environment, and is beneficial to environmental protection and construction safety; the added epoxy resin primer can increase the adhesion of the coating on the surface of an object; the polystyrene latex is synthesized by a microemulsion method, and the synthesized polystyrene latex has the advantages of small particle size, good dispersibility, good stability and the like, and is favorable for coating the paint; the inorganic filler can be added to increase the hardness, strength and wear resistance of the coating; the ultraviolet-proof coating disclosed by the invention is simple in preparation process and convenient to operate.
In the applicant's prior application CN115074000a, there is also disclosed an ultraviolet-proof coating and a method for preparing the same, the raw materials for preparing the coating comprising: 40-50 parts of self-emulsifying epoxy resin emulsion, 10-15 parts of epoxy resin modified silicone-acrylate emulsion, 15-25 parts of alkyd resin, 25-55 parts of sodium alginate modified nano titanium dioxide, 5-9 parts of dispersing agent, 0.5-2 parts of defoamer, 1-3 parts of wetting agent, 0.2-0.4 part of dioctyl phthalate and 100-200 parts of water; the water does not comprise water contained in sodium alginate modified nano titanium dioxide; the dispersant comprises a combination of sodium oleate and polyethylene glycol. However, the UV protection capability of the UV protection coating disclosed in this prior application is still limited and there is room for further improvement.
Although ultraviolet-proof paint exists, how to further reduce production cost and obtain paint with good stability and ultraviolet-proof effect is still a technical problem to be solved by the technicians in the field. The present application was completed by further inventive studies based on the applicant's prior application CN115074000 a.
Disclosure of Invention
Based on the background technology, the technical problem to be solved by the invention is to provide the coating with good stability and ultraviolet-proof effect, which reduces the production cost. In order to achieve the aim of the invention, the following technical scheme is adopted:
the invention relates to an ultraviolet-proof paint, which is characterized by comprising the following raw materials:
40-50 parts of self-emulsifying epoxy resin emulsion, 10-15 parts of epoxy resin modified silicone-acrylic emulsion, 15-25 parts of alkyd resin, 25-55 parts of stearic acid and polyvinylpyrrolidone modified nano titanium dioxide, 5-9 parts of dispersing agent, 0.5-2 parts of defoaming agent, 1-3 parts of wetting agent, 0.2-0.4 part of dioctyl phthalate and 100-200 parts of water; the water does not include the water contained in stearic acid and polyvinylpyrrolidone-modified nano titanium dioxide;
the dispersant comprises a combination of sodium oleate and polyethylene glycol;
the stearic acid and polyvinylpyrrolidone modified nano titanium dioxide is prepared by the following method:
dissolving 0.5-1 part by weight of stearic acid and 1-2 parts by weight of polyvinylpyrrolidone in 50-100 parts by weight of water, adding 3-8 parts by weight of titanium dioxide with the average particle size of 50-150nm, uniformly stirring, and standing to form stearic acid and polyvinylpyrrolidone modified nano titanium dioxide.
In a preferred embodiment of the present invention, the dispersant is prepared from sodium oleate and polyethylene glycol according to a ratio of 1-2: 1-2. The invention is beneficial to improving the ultraviolet resistance of the paint by controlling the proportion of the dispersing agent.
In a preferred embodiment of the present invention, the weight ratio of stearic acid to polyvinylpyrrolidone is 1:4. by using this preferred weight ratio, the ultraviolet protection of the coating can be further improved.
In a preferred embodiment of the present invention, the titanium dioxide has an average particle diameter of 50 to 75nm. By controlling the average particle diameter of the titanium dioxide within this preferable range, the ultraviolet resistance of the coating can be improved.
In a preferred embodiment of the present invention, the titanium dioxide has an average particle diameter of 90 to 110nm. By controlling the average particle diameter of the titanium dioxide within this preferable range, the scrub resistance of the coating can be improved.
The invention also relates to a preparation method of the paint, which is characterized by comprising the following steps:
sequentially adding water, self-emulsifying epoxy resin emulsion, epoxy resin modified silicone-acrylate emulsion and alkyd resin into a mixing kettle, and stirring and mixing for 10-20min at a rotating speed of 200-400 rpm; increasing the rotating speed to 450-700rpm, adding stearic acid and polyvinylpyrrolidone modified nano titanium dioxide, stirring for 3-8min, and heating to 40-50 ℃; when the fineness is less than or equal to 25 mu m, the dispersant, the defoamer, the wetting agent and the dioctyl phthalate are added in the sample detection, and the rotating speed is increased to 800-1200rpm for stirring; sampling from the mixing kettle every 8-12min, coating on the glass plate without shrinkage cavity, cooling to room temperature, and packaging.
In a preferred embodiment of the present invention, the self-emulsifying epoxy resin emulsion is prepared as follows:
adding sodium dodecyl benzene sulfonate, polyoxyethylene sorbitan monooleate, bisphenol A epoxy resin and bisphenol A into a reactor, stirring and heating to 130-150 ℃, stirring for 20-40min, slowly adding triphenylphosphine, monitoring at any time, cooling the reaction system to 60-80 ℃ after the epoxy value of the system is less than 0.2, adding propylene glycol butyl ether and benzyl alcohol, continuously stirring for 30-50min, and adding water and continuously stirring at high speed for 5-10 min.
In a preferred embodiment of the present invention, the preparation method of the epoxy resin modified silicone-acrylic emulsion is as follows:
adding sodium dodecyl benzene sulfonate and acrylic acid monomer into water, heating to 70-75 ℃, stirring for 10-15min, slowly dripping sodium persulfate solution with the mass concentration of 1-5%, continuously stirring for 30-50min, adding epoxy resin and organosilicon emulsion, heating to 80-85 ℃, stirring for 3-4h, cooling to 40-50 ℃, regulating the pH value of the system to 8 by ammonia water, and filtering.
Advantageous effects
The paint disclosed by the invention has good storage stability and high hardness, and is favorable for resisting physical damage; the water resistance, acid and alkali resistance and scrubbing resistance are excellent; the ultraviolet resistance is further optimized.
Detailed Description
In order to further understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless otherwise specified, all reagents involved in the examples of the present invention are commercially available products and are commercially available.
Example 1:
an ultraviolet-proof coating comprises the following components in parts by weight:
44 parts of self-emulsifying epoxy resin emulsion, 12 parts of epoxy resin modified silicone-acrylate emulsion, 20 parts of alkyd resin, 30 parts of stearic acid and polyvinylpyrrolidone modified nano titanium dioxide, 7 parts of dispersing agent obtained by compounding sodium oleate and polyethylene glycol according to a mass ratio of 1:1, BKY-0201 parts of defoaming agent, 4052 parts of wetting agent X, 0.3 part of dioctyl phthalate and 150 parts of water.
The preparation method of the self-emulsifying epoxy resin emulsion comprises the following steps:
adding sodium dodecyl benzene sulfonate, polyoxyethylene sorbitan monooleate, bisphenol A epoxy resin and bisphenol A into a reactor, stirring and heating to 140 ℃, stirring for 25min, slowly adding triphenylphosphine, monitoring at any time, cooling the reaction system to 60 ℃ after the epoxy value of the system is less than 0.2, adding propylene glycol butyl ether and benzyl alcohol, continuously stirring for 35min, and adding water and continuously stirring at high speed for 5 min.
The preparation method of the epoxy resin modified silicone-acrylate emulsion comprises the following steps:
adding sodium dodecyl benzene sulfonate and acrylic acid monomer into water, heating to 70 ℃, stirring for 12min, slowly dripping sodium persulfate solution with the mass concentration of 2%, continuously stirring for 50min, adding epoxy resin and organosilicon emulsion, heating to 80 ℃, stirring for 4h, cooling to 40 ℃, regulating the pH of the system to 8 by ammonia water, and filtering.
The preparation method of the stearic acid and polyvinylpyrrolidone modified nano titanium dioxide comprises the following steps:
0.5 weight part of stearic acid and 1.4 weight part of polyvinylpyrrolidone are dissolved in 50 weight parts of water, 5 weight parts of titanium dioxide with an average particle size of 55nm are added, and after uniform stirring, the mixture is left to stand, so that stearic acid and polyvinylpyrrolidone modified nano titanium dioxide is formed.
The invention also provides a preparation method of the ecological water-based paint, which comprises the following steps:
sequentially adding water, self-emulsifying epoxy resin emulsion, epoxy resin modified silicone-acrylate emulsion and alkyd resin into a mixing kettle, and stirring and mixing for 20min at a rotating speed of 300 rpm; increasing the rotating speed to 600rpm, adding stearic acid and polyvinylpyrrolidone modified nano titanium dioxide, stirring for 5min, and heating to 45 ℃; when the fineness is less than or equal to 25 mu m through sampling detection, adding a dispersing agent, a defoaming agent BKY-020, a wetting agent X405 and dioctyl phthalate, and stirring at a rotating speed of 1000 rpm; sampling from the mixing kettle every 10min, coating on a glass plate without shrinkage cavity, cooling to room temperature, and packaging.
Example 2:
the same as in example 1, except that 0.5 parts by weight of stearic acid and 2.0 parts by weight of polyvinylpyrrolidone-modified nano titanium dioxide were used.
Example 3:
the same as in example 1, except that the average particle diameter of the titanium dioxide was 100nm.
Comparative example 1:
the same as in example 1, except that 2.0 parts by weight of stearic acid was used instead of stearic acid and polyvinylpyrrolidone.
Comparative example 2:
the same as in example 1, except that 2.0 parts by weight of polyvinylpyrrolidone was used instead of stearic acid and polyvinylpyrrolidone.
Comparative example 3:
the same as in example 1, except that nano zinc oxide having an average particle diameter of 65nm was used instead of nano titanium dioxide.
Test description
The ultraviolet-proof coatings prepared in examples 1 to 3 and comparative examples 1 to 3 were tested:
the storage stability of the coating was tested at high temperature (50 ℃) for 2 months, with no oil slick and no sediment noted ++, with oil slick or sediment noted +, while oil slick and sediment occurred, noted-;
the ultraviolet resistance of the paint film is tested by adopting an accelerated aging tester, the ultraviolet light source is a lamp tube with the UVA-340nm specification, and the irradiation intensity is 1.0W/m 2 Recording time when chalking, bubbling and/or cracking of the coating film (thickness 1 mm) formed by the coating material started to occur;
the hardness of the paint film is measured according to GB/T6739-2006;
the water resistance of the paint film was determined according to GB 5209-1985;
the alkali resistance of the paint film was determined according to GB 9274-1988;
the scrub resistance of the paint film was determined according to GB/T9266-88.
TABLE 1 ultraviolet protection coating Performance test results
The experiment result shows that the paint disclosed by the invention has good storage stability and high hardness, and is favorable for resisting physical damage; the water resistance, acid and alkali resistance and scrubbing resistance are excellent; excellent ultraviolet resistance. In particular, the ultraviolet ray blocking performance of example 2 was optimal.
The foregoing describes preferred embodiments of the present invention, but is not intended to limit the invention thereto. Modifications and variations to the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.
Claims (8)
1. An ultraviolet-proof coating is characterized by comprising the following raw materials:
40-50 parts of self-emulsifying epoxy resin emulsion, 10-15 parts of epoxy resin modified silicone-acrylic emulsion, 15-25 parts of alkyd resin, 25-55 parts of stearic acid and polyvinylpyrrolidone modified nano titanium dioxide, 5-9 parts of dispersing agent, 0.5-2 parts of defoaming agent, 1-3 parts of wetting agent, 0.2-0.4 part of dioctyl phthalate and 100-200 parts of water; the water does not include the water contained in stearic acid and polyvinylpyrrolidone-modified nano titanium dioxide;
the dispersant comprises a combination of sodium oleate and polyethylene glycol;
the stearic acid and polyvinylpyrrolidone modified nano titanium dioxide is prepared by the following method:
dissolving 0.5-1 part by weight of stearic acid and 1-2 parts by weight of polyvinylpyrrolidone in 50-100 parts by weight of water, adding 3-8 parts by weight of titanium dioxide with the average particle size of 50-150nm, uniformly stirring, and standing to form stearic acid and polyvinylpyrrolidone modified nano titanium dioxide.
2. The ultraviolet-proof coating material according to claim 1, wherein the dispersing agent is prepared from sodium oleate and polyethylene glycol according to the following ratio of 1-2: 1-2.
3. The ultraviolet-resistant coating material according to claim 1, wherein the weight ratio of stearic acid to polyvinylpyrrolidone is 1:4.
4. the ultraviolet-proof coating material according to claim 1, wherein the titanium dioxide has an average particle diameter of 50-75nm.
5. The ultraviolet-proof coating material according to claim 1, wherein the titanium dioxide has an average particle diameter of 90-110nm.
6. A method for preparing the coating according to any one of claims 1 to 5, characterized by comprising the steps of:
sequentially adding water, self-emulsifying epoxy resin emulsion, epoxy resin modified silicone-acrylate emulsion and alkyd resin into a mixing kettle, and stirring and mixing for 10-20min at a rotating speed of 200-400 rpm; increasing the rotating speed to 450-700rpm, adding stearic acid and polyvinylpyrrolidone modified nano titanium dioxide, stirring for 3-8min, and heating to 40-50 ℃; when the fineness is less than or equal to 25 mu m, the dispersant, the defoamer, the wetting agent and the dioctyl phthalate are added in the sample detection, and the rotating speed is increased to 800-1200rpm for stirring; sampling from the mixing kettle every 8-12min, coating on the glass plate without shrinkage cavity, cooling to room temperature, and packaging.
7. The preparation method of the self-emulsifying epoxy resin emulsion according to claim 6, wherein the preparation method comprises the following steps:
adding sodium dodecyl benzene sulfonate, polyoxyethylene sorbitan monooleate, bisphenol A epoxy resin and bisphenol A into a reactor, stirring and heating to 130-150 ℃, stirring for 20-40min, slowly adding triphenylphosphine, monitoring at any time, cooling the reaction system to 60-80 ℃ after the epoxy value of the system is less than 0.2, adding propylene glycol butyl ether and benzyl alcohol, continuously stirring for 30-50min, and adding water and continuously stirring at high speed for 5-10 min.
8. The preparation method of the epoxy resin modified silicone-acrylate emulsion according to claim 6, wherein the preparation method comprises the following steps:
adding sodium dodecyl benzene sulfonate and acrylic acid monomer into water, heating to 70-75 ℃, stirring for 10-15min, slowly dripping sodium persulfate solution with the mass concentration of 1-5%, continuously stirring for 30-50min, adding epoxy resin and organosilicon emulsion, heating to 80-85 ℃, stirring for 3-4h, cooling to 40-50 ℃, regulating the pH value of the system to 8 by ammonia water, and filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211705755.2A CN116120806A (en) | 2022-12-29 | 2022-12-29 | Ultraviolet-proof paint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211705755.2A CN116120806A (en) | 2022-12-29 | 2022-12-29 | Ultraviolet-proof paint and preparation method thereof |
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| CN116120806A true CN116120806A (en) | 2023-05-16 |
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| CN202211705755.2A Pending CN116120806A (en) | 2022-12-29 | 2022-12-29 | Ultraviolet-proof paint and preparation method thereof |
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| CN105199592A (en) * | 2015-09-22 | 2015-12-30 | 天长市开林化工有限公司 | High-performance acrylic ester modified water-based polyurethane emulsion paint |
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| CN109836734A (en) * | 2019-03-15 | 2019-06-04 | 郭艳 | A kind of method of modifying of uvioresistant PVC composite material |
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| CN114231055A (en) * | 2021-12-31 | 2022-03-25 | 广东粤港澳大湾区国家纳米科技创新研究院 | Modified nano titanium dioxide material and preparation method and application thereof |
| CN114907743A (en) * | 2022-03-28 | 2022-08-16 | 张家港市天源制漆涂装有限公司 | Water-based dip-coating paint |
| CN115074000A (en) * | 2022-08-03 | 2022-09-20 | 广东涂百年新型材料有限公司 | Ultraviolet-proof coating and preparation method thereof |
-
2022
- 2022-12-29 CN CN202211705755.2A patent/CN116120806A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199592A (en) * | 2015-09-22 | 2015-12-30 | 天长市开林化工有限公司 | High-performance acrylic ester modified water-based polyurethane emulsion paint |
| CN107760133A (en) * | 2017-10-30 | 2018-03-06 | 安徽铭能保温科技有限公司 | A kind of preparation method of the organo-mineral complexing coating of nanometer of lanthanum hexaboride collaboration enhancing effect of heat insulation |
| CN109836734A (en) * | 2019-03-15 | 2019-06-04 | 郭艳 | A kind of method of modifying of uvioresistant PVC composite material |
| CN112972275A (en) * | 2021-04-13 | 2021-06-18 | 苏州绿叶日用品有限公司 | SiO with sun-proof performance2-TiO2Composite nano material and preparation method and application thereof |
| CN114231055A (en) * | 2021-12-31 | 2022-03-25 | 广东粤港澳大湾区国家纳米科技创新研究院 | Modified nano titanium dioxide material and preparation method and application thereof |
| CN114907743A (en) * | 2022-03-28 | 2022-08-16 | 张家港市天源制漆涂装有限公司 | Water-based dip-coating paint |
| CN115074000A (en) * | 2022-08-03 | 2022-09-20 | 广东涂百年新型材料有限公司 | Ultraviolet-proof coating and preparation method thereof |
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