CN113201258A - Water-based high-reflection transparent finish paint and preparation method thereof - Google Patents
Water-based high-reflection transparent finish paint and preparation method thereof Download PDFInfo
- Publication number
- CN113201258A CN113201258A CN202110486418.8A CN202110486418A CN113201258A CN 113201258 A CN113201258 A CN 113201258A CN 202110486418 A CN202110486418 A CN 202110486418A CN 113201258 A CN113201258 A CN 113201258A
- Authority
- CN
- China
- Prior art keywords
- water
- hollow glass
- glass beads
- reflection
- stirring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to the technical field of coatings, in particular to a water-based high-reflection transparent finish paint and a preparation method thereof, wherein the transparent finish paint comprises 40-60 parts of water-based acrylic emulsion, 5-10 parts of high-reflection slurry, 0.5-1 part of wetting agent, 0.2-0.6 part of preservative, 0.3-0.6 part of thickener, 0.1-0.5 part of defoamer, 2-4 parts of film-forming additive and the balance of water, the high-reflection slurry is at least one of titanium dioxide hollow glass microspheres and zinc oxide, and when the transparent finish paint is coated on the surface of an outer wall, infrared rays and heat can be isolated, so that a low-temperature environment can be kept indoors, air conditioners, fans and the like do not need to be started for reduction, and energy is greatly saved.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based high-reflection transparent finish paint and a preparation method thereof.
Background
With the national emphasis on energy conservation and environmental protection, the market share of exterior wall products with water-based and energy-saving properties is increasing year by year, but some problems exist, such as energy conservation of real stone paint, imitated marble paint, low-brightness deep-color paint and the like. The sunlight can raise the surface temperature of the outer wall, and the indoor temperature is raised through heat transfer, so that residents need to use air conditioners, fans and the like to cool, and the energy consumption is overlarge. If the indoor temperature can be effectively reduced by coating the heat-insulating coating on the outside of the building, a large amount of energy can be saved.
Disclosure of Invention
The invention aims to provide a water-based high-reflection transparent finish paint and a preparation method thereof, aiming at the defects of the prior art, wherein the finish paint can reflect most of sunlight so as to reduce the indoor temperature.
In order to achieve the purpose, the invention adopts the following technical scheme:
the water-based high-reflection transparent finish paint comprises the following raw materials in parts by weight:
the high-reflection slurry is at least one of titanium dioxide hollow glass beads and zinc oxide.
In the technical scheme, the water-based acrylic emulsion is an acrylic homopolymer with the solid content of 40-50%, and has the characteristics of fine particle size, strong permeability, good water resistance and good weather resistance.
In the technical scheme, the weight ratio of the titanium dioxide hollow glass beads to the zinc oxide is 1: 1-2.
In the technical scheme, the titanium dioxide hollow glass beads are rare earth lanthanum-doped nano titanium dioxide modified hollow glass beads.
In the technical scheme, the preparation method of the rare earth lanthanum doped nano titanium dioxide modified hollow glass bead comprises the following steps:
(1) washing and floating hollow glass beads by using deionized water, soaking the hollow glass beads for 40-50 min by using a sodium hydroxide solution with the concentration of 3-8 g/L and the temperature of 50-60 ℃, washing and drying by using the deionized water, and finishing the pretreatment of the hollow glass beads;
(2) weighing a silane coupling agent KH-550 with the mass being 15-25% of that of the hollow glass microspheres, dropwise adding the silane coupling agent KH-550 into an ethanol solution, adjusting the pH value to 4-4.5, adding the hollow glass microspheres into the solution, uniformly stirring the mixture at the speed of 250-400 rpm, performing suction filtration, washing and drying to obtain hollow glass microspheres with aminated surfaces;
(3) dissolving titanium nitrate in deionized water, adding tartaric acid, lanthanum nitrate and a surfactant of cetyl trimethyl ammonium bromide, stirring to obtain a modified solution, soaking the hollow glass beads with the aminated surfaces in the modified solution at 60 ℃, transferring the hollow glass beads into a reaction kettle to react for 2.5-3.5 hours at 180-200 ℃, cooling, taking out the hollow glass beads, washing and drying to obtain the rare earth lanthanum-doped nano titanium dioxide modified hollow glass beads;
wherein the molar ratio of the titanium nitrate to the tartaric acid to the lanthanum nitrate to the hexadecyl trimethyl ammonium bromide is 1 (0.5-2) to (0.001-0.01) to (0.04-0.2), and the hollow glass microspheres with the surfaces being rich in amination per gram are soaked in 0.08-0.15L of modification solution.
According to the rare earth lanthanum-doped nano titanium dioxide modified hollow glass bead, the infrared light reflectivity of the rare earth lanthanum element is up to 70%, and titanium dioxide has excellent heat insulation performance, so that the rare earth lanthanum-doped nano titanium dioxide modified hollow glass bead not only can reflect infrared light, but also can insulate heat, can greatly reflect infrared rays in sunlight when added into a high-reflection transparent finish paint, and ensures that the indoor temperature is reduced.
In the technical scheme, the wetting agent is water-based polyether modified siloxane with a short molecular chain segment, the defoaming agent is a water-based organic silicon defoaming agent, the thickening agent is at least one of associative polyurethane thickening agent and hydrophobic modified alkali swelling thickening agent, and the film-forming auxiliary agent is fatty acid ester film-forming auxiliary agent.
The preparation method of the water-based high-reflection transparent finish paint comprises the following steps:
step one, uniformly mixing water, a defoaming agent, a wetting agent and a preservative according to the formula ratio, and stirring at the speed of 400-600 revolutions per minute for 5-10 minutes to obtain a first mixture;
step two, sequentially adding the high-reflection slurry and the water-based acrylic emulsion in formula amount into the first mixture obtained in the step one, and stirring at the speed of 700-900 revolutions per minute for 8-12 minutes to obtain a second mixture;
and step three, mixing the film-forming assistant and water according to the formula amount, slowly adding the mixture into the second mixture, stirring for 6-8 minutes at the speed of 500-700 revolutions per minute, then adding the thickener according to the formula amount, and stirring for 8-12 minutes at the speed of 500-700 revolutions per minute to obtain the water-based high-reflection transparent finish paint.
The invention has the beneficial effects that:
the high-reflection transparent finish paint is added with the high-reflection slurry titanium dioxide hollow glass beads and zinc oxide, the titanium dioxide hollow glass beads have excellent heat insulation performance, and the zinc oxide can reflect more than 90% of infrared rays in sunlight, so that when the transparent finish paint is coated on the surface of an outer wall, the infrared rays and heat can be isolated, a low-temperature environment is kept indoors, air conditioners, fans and the like do not need to be started for reduction, and energy is greatly saved.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more apparent, the present invention is further described in detail below 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.
Example 1
A water-based high-reflection transparent finish paint and a preparation method thereof comprise the following raw materials in parts by weight:
the high-reflection slurry is a mixture of titanium dioxide hollow glass beads and zinc oxide according to a weight ratio of 1: 1.5.
In this embodiment, the aqueous acrylic emulsion is an acrylic homopolymer having a solid content of 45%, and has the characteristics of fine particle size, strong permeability, good water resistance, and good weather resistance.
In this embodiment, the titanium dioxide hollow glass beads are rare earth lanthanum-doped nano titanium dioxide modified hollow glass beads, and the preparation method thereof is as follows:
(1) washing and floating hollow glass beads by using deionized water, soaking the hollow glass beads for 45min by using a sodium hydroxide solution with the concentration of 5g/L and the temperature of 55 ℃, washing and drying by using the deionized water, and finishing the pretreatment of the hollow glass beads;
(2) weighing a silane coupling agent KH-550 with the mass being 20% of that of the hollow glass microspheres, dropwise adding the silane coupling agent KH-550 into an ethanol solution, adjusting the pH value to 4.5, then adding the hollow glass microspheres into the solution, uniformly stirring the mixture at the speed of 300 revolutions per minute, and performing suction filtration, washing and drying to obtain the hollow glass microspheres with the surfaces being rich in amination;
(3) dissolving titanium nitrate in deionized water, adding tartaric acid, lanthanum nitrate and a surfactant of cetyl trimethyl ammonium bromide, stirring to obtain a modified solution, then soaking the hollow glass beads with the aminated surfaces in the modified solution at 60 ℃, transferring the hollow glass beads into a reaction kettle to react for 3 hours at 190 ℃, cooling, taking out the hollow glass beads, washing and drying to obtain the rare earth lanthanum doped nano titanium dioxide modified hollow glass beads;
wherein the molar ratio of the titanium nitrate to the tartaric acid to the lanthanum nitrate to the hexadecyl trimethyl ammonium bromide is 1:1.2:0.005:0.1, and each gram of the hollow glass microspheres with the surfaces being rich in amination is soaked in 0.11L of the modified solution.
In this embodiment, the wetting agent is a water-based polyether modified siloxane having a short molecular chain segment, the defoamer is a water-based silicone defoamer, the thickener is at least one of an associated polyurethane thickener and a hydrophobically modified alkali swelling thickener, and the coalescing agent is a fatty acid ester coalescing agent.
The preparation method of the water-based high-reflection transparent finish paint comprises the following steps:
step one, uniformly mixing water, a defoaming agent, a wetting agent and a preservative according to the formula ratio, and stirring at the speed of 500 revolutions per minute for 7 minutes to obtain a first mixture;
step two, sequentially adding the high-reflection slurry and the water-based acrylic emulsion in formula amount into the first mixture obtained in the step one, and stirring at the speed of 800 revolutions per minute for 10 minutes to obtain a second mixture;
and step three, mixing the film-forming aid and water according to the formula amount, slowly adding the mixture into the second mixture, stirring for 7 minutes at the speed of 600 revolutions per minute, then adding the thickener according to the formula amount, and stirring for 10 minutes at the speed of 600 revolutions per minute to obtain the water-based high-reflection transparent finish paint.
Example 2
A water-based high-reflection transparent finish paint and a preparation method thereof comprise the following raw materials in parts by weight:
the high-reflection slurry is a mixture of titanium dioxide hollow glass beads and zinc oxide in a weight ratio of 1:1.
In this embodiment, the aqueous acrylic emulsion is an acrylic homopolymer having a solid content of 40%, and has the characteristics of fine particle size, strong permeability, good water resistance, and good weather resistance.
In this embodiment, the titanium dioxide hollow glass beads are rare earth lanthanum-doped nano titanium dioxide modified hollow glass beads, and the preparation method thereof is as follows:
(1) washing and floating the hollow glass beads by using deionized water, then soaking the hollow glass beads for 40min by using a sodium hydroxide solution with the concentration of 3g/L and the temperature of 50 ℃, washing and drying by using the deionized water, and finishing the pretreatment of the hollow glass beads;
(2) weighing a silane coupling agent KH-550 with the mass of 15% of that of the hollow glass microspheres, dropwise adding the silane coupling agent KH-550 into an ethanol solution, adjusting the pH value to 4, adding the hollow glass microspheres into the solution, uniformly stirring the mixture at the speed of 250 revolutions per minute, and performing suction filtration, washing and drying to obtain hollow glass microspheres with aminated surfaces;
(3) dissolving titanium nitrate in deionized water, adding tartaric acid, lanthanum nitrate and a surfactant of cetyl trimethyl ammonium bromide, stirring to obtain a modified solution, then soaking the hollow glass beads with the aminated surfaces in the modified solution at 60 ℃, transferring the hollow glass beads into a reaction kettle to react for 2.5 hours at 180 ℃, cooling, taking out the hollow glass beads, washing and drying to obtain the rare earth lanthanum doped nano titanium dioxide modified hollow glass beads;
wherein the molar ratio of the titanium nitrate to the tartaric acid to the lanthanum nitrate to the hexadecyl trimethyl ammonium bromide is 1:0.5:0.001:0.04, and each gram of the hollow glass microspheres with the surfaces being rich in amination is soaked in 0.08L of the modified solution.
In this embodiment, the wetting agent is a water-based polyether modified siloxane having a short molecular chain segment, the defoamer is a water-based silicone defoamer, the thickener is at least one of an associated polyurethane thickener and a hydrophobically modified alkali swelling thickener, and the coalescing agent is a fatty acid ester coalescing agent.
The preparation method of the water-based high-reflection transparent finish paint comprises the following steps:
step one, uniformly mixing water, a defoaming agent, a wetting agent and a preservative according to the formula ratio, and stirring at the speed of 400 revolutions per minute for 5 minutes to obtain a first mixture;
step two, sequentially adding the high-reflection slurry and the water-based acrylic emulsion in formula amount into the first mixture obtained in the step one, and stirring at the speed of 700 revolutions per minute for 8 minutes to obtain a second mixture;
and step three, mixing the film-forming aid and water according to the formula amount, slowly adding the mixture into the second mixture, stirring for 6 minutes at the speed of 500 revolutions per minute, then adding the thickener according to the formula amount, and stirring for 8 minutes at the speed of 500 revolutions per minute to obtain the water-based high-reflection transparent finish paint.
Example 3
A water-based high-reflection transparent finish paint and a preparation method thereof comprise the following raw materials in parts by weight:
the high-reflection slurry is a mixture of titanium dioxide hollow glass beads and zinc oxide in a weight ratio of 1: 2.
In this embodiment, the aqueous acrylic emulsion is an acrylic homopolymer having a solid content of 50%, and has the characteristics of fine particle size, strong permeability, good water resistance, and good weather resistance.
In this embodiment, the titanium dioxide hollow glass beads are rare earth lanthanum-doped nano titanium dioxide modified hollow glass beads, and the preparation method thereof is as follows:
(1) washing and floating hollow glass beads by using deionized water, then soaking the hollow glass beads for 50min by using a sodium hydroxide solution with the concentration of 8g/L and the temperature of 60 ℃, washing and drying by using the deionized water, and finishing the pretreatment of the hollow glass beads;
(2) weighing a silane coupling agent KH-550 with the mass of 25% of that of the hollow glass microspheres, dropwise adding the silane coupling agent KH-550 into an ethanol solution, adjusting the pH value to 4.5, adding the hollow glass microspheres into the solution, uniformly stirring the mixture at the speed of 400 revolutions per minute, and performing suction filtration, washing and drying to obtain hollow glass microspheres with aminated surfaces;
(3) dissolving titanium nitrate in deionized water, adding tartaric acid, lanthanum nitrate and a surfactant of cetyl trimethyl ammonium bromide, stirring to obtain a modified solution, then soaking the hollow glass beads with the aminated surfaces in the modified solution at 60 ℃, transferring the hollow glass beads into a reaction kettle to react for 3.5 hours at 200 ℃, cooling, taking out the hollow glass beads, washing and drying to obtain the rare earth lanthanum doped nano titanium dioxide modified hollow glass beads;
wherein the molar ratio of the titanium nitrate to the tartaric acid to the lanthanum nitrate to the hexadecyl trimethyl ammonium bromide is 1:2:0.01:0.2, and the hollow glass microspheres with aminated surfaces enriched on each gram are soaked in 0.15L of modified solution.
In this embodiment, the wetting agent is a water-based polyether modified siloxane having a short molecular chain segment, the defoamer is a water-based silicone defoamer, the thickener is at least one of an associated polyurethane thickener and a hydrophobically modified alkali swelling thickener, and the coalescing agent is a fatty acid ester coalescing agent.
The preparation method of the water-based high-reflection transparent finish paint comprises the following steps:
step one, uniformly mixing water, a defoaming agent, a wetting agent and a preservative according to the formula amount, and stirring at the speed of 600 revolutions per minute for 10 minutes to obtain a first mixture;
step two, sequentially adding the high-reflection slurry and the water-based acrylic emulsion in formula amount into the first mixture obtained in the step one, and stirring at the speed of 900 revolutions per minute for 12 minutes to obtain a second mixture;
and step three, mixing the film-forming aid and water according to the formula amount, slowly adding the mixture into the second mixture, stirring for 8 minutes at the speed of 700 revolutions per minute, then adding the thickener according to the formula amount, and stirring for 12 minutes at the speed of 700 revolutions per minute to obtain the water-based high-reflection transparent finish paint.
Comparative example 1
A water-based high-reflection transparent finish paint and a preparation method thereof comprise the following raw materials in parts by weight:
the high-reflection slurry is titanium dioxide hollow glass beads.
In this embodiment, the aqueous acrylic emulsion is an acrylic homopolymer having a solid content of 45%, and has the characteristics of fine particle size, strong permeability, good water resistance, and good weather resistance.
In this embodiment, the titanium dioxide hollow glass beads are rare earth lanthanum-doped nano titanium dioxide modified hollow glass beads, and the preparation method thereof is as follows:
(1) washing and floating hollow glass beads by using deionized water, soaking the hollow glass beads for 45min by using a sodium hydroxide solution with the concentration of 5g/L and the temperature of 55 ℃, washing and drying by using the deionized water, and finishing the pretreatment of the hollow glass beads;
(2) weighing a silane coupling agent KH-550 with the mass being 20% of that of the hollow glass microspheres, dropwise adding the silane coupling agent KH-550 into an ethanol solution, adjusting the pH value to 4.5, then adding the hollow glass microspheres into the solution, uniformly stirring the mixture at the speed of 300 revolutions per minute, and performing suction filtration, washing and drying to obtain the hollow glass microspheres with the surfaces being rich in amination;
(3) dissolving titanium nitrate in deionized water, adding tartaric acid, lanthanum nitrate and a surfactant of cetyl trimethyl ammonium bromide, stirring to obtain a modified solution, then soaking the hollow glass beads with the aminated surfaces in the modified solution at 60 ℃, transferring the hollow glass beads into a reaction kettle to react for 3 hours at 190 ℃, cooling, taking out the hollow glass beads, washing and drying to obtain the rare earth lanthanum doped nano titanium dioxide modified hollow glass beads;
wherein the molar ratio of the titanium nitrate to the tartaric acid to the lanthanum nitrate to the hexadecyl trimethyl ammonium bromide is 1:1.2:0.005:0.1, and each gram of the hollow glass microspheres with the surfaces being rich in amination is soaked in 0.11L of the modified solution.
In this embodiment, the wetting agent is a water-based polyether modified siloxane having a short molecular chain segment, the defoamer is a water-based silicone defoamer, the thickener is at least one of an associated polyurethane thickener and a hydrophobically modified alkali swelling thickener, and the coalescing agent is a fatty acid ester coalescing agent.
The preparation method of the water-based high-reflection transparent finish paint comprises the following steps:
step one, uniformly mixing water, a defoaming agent, a wetting agent and a preservative according to the formula ratio, and stirring at the speed of 500 revolutions per minute for 7 minutes to obtain a first mixture;
step two, sequentially adding the high-reflection slurry and the water-based acrylic emulsion in formula amount into the first mixture obtained in the step one, and stirring at the speed of 800 revolutions per minute for 10 minutes to obtain a second mixture;
and step three, mixing the film-forming aid and water according to the formula amount, slowly adding the mixture into the second mixture, stirring for 7 minutes at the speed of 600 revolutions per minute, then adding the thickener according to the formula amount, and stirring for 10 minutes at the speed of 600 revolutions per minute to obtain the water-based high-reflection transparent finish paint.
Comparative example 2
A water-based high-reflection transparent finish paint and a preparation method thereof comprise the following raw materials in parts by weight:
the high-reflection slurry is zinc oxide.
In this embodiment, the aqueous acrylic emulsion is an acrylic homopolymer having a solid content of 45%, and has the characteristics of fine particle size, strong permeability, good water resistance, and good weather resistance.
In this embodiment, the wetting agent is a water-based polyether modified siloxane having a short molecular chain segment, the defoamer is a water-based silicone defoamer, the thickener is at least one of an associated polyurethane thickener and a hydrophobically modified alkali swelling thickener, and the coalescing agent is a fatty acid ester coalescing agent.
The preparation method of the water-based high-reflection transparent finish paint comprises the following steps:
step one, uniformly mixing water, a defoaming agent, a wetting agent and a preservative according to the formula ratio, and stirring at the speed of 500 revolutions per minute for 7 minutes to obtain a first mixture;
step two, sequentially adding the high-reflection slurry and the water-based acrylic emulsion in formula amount into the first mixture obtained in the step one, and stirring at the speed of 800 revolutions per minute for 10 minutes to obtain a second mixture;
and step three, mixing the film-forming aid and water according to the formula amount, slowly adding the mixture into the second mixture, stirring for 7 minutes at the speed of 600 revolutions per minute, then adding the thickener according to the formula amount, and stirring for 10 minutes at the speed of 600 revolutions per minute to obtain the water-based high-reflection transparent finish paint.
Comparative example 3
The water-based high-reflection transparent finish paint comprises the following raw materials in parts by weight:
the high-reflection slurry is nano titanium dioxide.
In this embodiment, the aqueous acrylic emulsion is an acrylic homopolymer having a solid content of 45%, and has the characteristics of fine particle size, strong permeability, good water resistance, and good weather resistance.
In this embodiment, the wetting agent is a water-based polyether modified siloxane having a short molecular chain segment, the defoamer is a water-based silicone defoamer, the thickener is at least one of an associated polyurethane thickener and a hydrophobically modified alkali swelling thickener, and the coalescing agent is a fatty acid ester coalescing agent.
The preparation method of the water-based high-reflection transparent finish paint comprises the following steps:
step one, uniformly mixing water, a defoaming agent, a wetting agent and a preservative according to the formula ratio, and stirring at the speed of 500 revolutions per minute for 7 minutes to obtain a first mixture;
step two, sequentially adding the high-reflection slurry and the water-based acrylic emulsion in formula amount into the first mixture obtained in the step one, and stirring at the speed of 800 revolutions per minute for 10 minutes to obtain a second mixture;
and step three, mixing the film-forming aid and water according to the formula amount, slowly adding the mixture into the second mixture, stirring for 7 minutes at the speed of 600 revolutions per minute, then adding the thickener according to the formula amount, and stirring for 10 minutes at the speed of 600 revolutions per minute to obtain the water-based high-reflection transparent finish paint.
Test results
The topcoats of examples 1-3 and comparative examples 1-3 were applied to the exterior wall surface and the properties are shown in table 1.
TABLE 1
According to the test results of the examples 1 to 3, the transparent finishing coat disclosed by the invention can reflect about 95% of infrared rays in sunlight, so that the coating has excellent weather resistance and chalking resistance, has good heat insulation performance, and can reduce the indoor temperature by about 10 ℃ compared with the common coating; comparing example 1 with comparative examples 1 and 3, it can be seen that the reflectivity of the coating to infrared rays can be greatly reduced without adding zinc oxide, so that the weather resistance and the chalking resistance of the coating are reduced, and the indoor temperature change is indirectly influenced; comparing example 1 with comparative example 2, it can be seen that the absence of titanium dioxide hollow glass beads reduces the heat insulation performance of the coating, resulting in an increase in indoor temperature; comparing comparative example 1 with comparative example 2, it can be seen that unmodified titanium dioxide has only heat insulating properties and does not reflect infrared rays, resulting in a decrease in the weather resistance and chalking resistance of the coating.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The water-based high-reflection transparent finish paint is characterized by comprising the following raw materials in parts by weight:
the balance of water;
the high-reflection slurry is at least one of titanium dioxide hollow glass beads and zinc oxide.
2. The water-based high-reflection transparent finishing paint according to claim 1, characterized in that: the water-based acrylic emulsion is an acrylic homopolymer with the solid content of 40-50%.
3. The water-based high-reflection transparent finishing paint according to claim 1, characterized in that: the weight ratio of the titanium dioxide hollow glass beads to the zinc oxide is 1: 1-2.
4. The water-based high-reflection transparent finishing paint according to claim 1 or 3, characterized in that: the titanium dioxide hollow glass beads are rare earth lanthanum-doped nano titanium dioxide modified hollow glass beads.
5. The water-based high-reflection transparent finishing paint according to claim 4, wherein the preparation method of the rare earth lanthanum-doped nano titanium dioxide modified hollow glass bead comprises the following steps:
(1) washing and floating hollow glass beads by using deionized water, soaking the hollow glass beads for 40-50 min by using a sodium hydroxide solution with the concentration of 3-8 g/L and the temperature of 50-60 ℃, washing and drying by using the deionized water, and finishing the pretreatment of the hollow glass beads;
(2) weighing a silane coupling agent KH-550 with the mass being 15-25% of that of the hollow glass microspheres, dropwise adding the silane coupling agent KH-550 into an ethanol solution, adjusting the pH value to 4-4.5, adding the hollow glass microspheres into the solution, uniformly stirring the mixture at the speed of 250-400 rpm, performing suction filtration, washing and drying to obtain hollow glass microspheres with aminated surfaces;
(3) dissolving titanium nitrate in deionized water, adding tartaric acid, lanthanum nitrate and a surfactant of cetyl trimethyl ammonium bromide, stirring to obtain a modified solution, soaking the hollow glass beads with the aminated surfaces in the modified solution at 60 ℃, transferring the hollow glass beads into a reaction kettle to react for 2.5-3.5 hours at 180-200 ℃, cooling, taking out the hollow glass beads, washing and drying to obtain the rare earth lanthanum-doped nano titanium dioxide modified hollow glass beads;
wherein the molar ratio of the titanium nitrate to the tartaric acid to the lanthanum nitrate to the hexadecyl trimethyl ammonium bromide is 1 (0.5-2) to (0.001-0.01) to (0.04-0.2), and the hollow glass microspheres with the surfaces being rich in amination per gram are soaked in 0.08-0.15L of modification solution.
6. The water-based high-reflection transparent finishing paint according to claim 1, characterized in that: the wetting agent is water-based polyether modified siloxane with a short molecular chain segment, the defoaming agent is a water-based organic silicon defoaming agent, the thickening agent is at least one of an associated polyurethane thickening agent and a hydrophobically modified alkali swelling thickening agent, and the film-forming assistant is a fatty acid ester film-forming assistant.
7. The preparation method of the water-based high-reflection transparent finishing coat as claimed in any one of claims 1 to 6, which is characterized by comprising the following steps:
step one, uniformly mixing water, a defoaming agent, a wetting agent and a preservative according to the formula ratio, and stirring at the speed of 400-600 revolutions per minute for 5-10 minutes to obtain a first mixture;
step two, sequentially adding the high-reflection slurry and the water-based acrylic emulsion in formula amount into the first mixture obtained in the step one, and stirring at the speed of 700-900 revolutions per minute for 8-12 minutes to obtain a second mixture;
and step three, mixing the film-forming assistant and water according to the formula amount, slowly adding the mixture into the second mixture, stirring for 6-8 minutes at the speed of 500-700 revolutions per minute, then adding the thickener according to the formula amount, and stirring for 8-12 minutes at the speed of 500-700 revolutions per minute to obtain the water-based high-reflection transparent finish paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110486418.8A CN113201258A (en) | 2021-04-30 | 2021-04-30 | Water-based high-reflection transparent finish paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110486418.8A CN113201258A (en) | 2021-04-30 | 2021-04-30 | Water-based high-reflection transparent finish paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113201258A true CN113201258A (en) | 2021-08-03 |
Family
ID=77028552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110486418.8A Pending CN113201258A (en) | 2021-04-30 | 2021-04-30 | Water-based high-reflection transparent finish paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113201258A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226042A (en) * | 2011-04-20 | 2011-10-26 | 天津恒实通工程技术发展有限公司 | Method for coating hollow microbeads with titanium-lanthanum oxides |
| JP2012171860A (en) * | 2011-02-23 | 2012-09-10 | Net Corp | Hollow nanoparticles and coating material using the same |
| CN103949261A (en) * | 2014-04-10 | 2014-07-30 | 西安工程大学 | Preparation method for hollow glass bead modified by rare-earth neodymium doped nanometer ferric oxide |
| CN105820602A (en) * | 2016-03-24 | 2016-08-03 | 青岛科技大学 | Preparing method of nanometer titanium oxide modified hollow glass beads |
| CN107936752A (en) * | 2017-12-14 | 2018-04-20 | 吴海 | A kind of hollow glass micropearl base fluorine carbon reflective heat-insulation paint and preparation method thereof |
-
2021
- 2021-04-30 CN CN202110486418.8A patent/CN113201258A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012171860A (en) * | 2011-02-23 | 2012-09-10 | Net Corp | Hollow nanoparticles and coating material using the same |
| CN102226042A (en) * | 2011-04-20 | 2011-10-26 | 天津恒实通工程技术发展有限公司 | Method for coating hollow microbeads with titanium-lanthanum oxides |
| CN103949261A (en) * | 2014-04-10 | 2014-07-30 | 西安工程大学 | Preparation method for hollow glass bead modified by rare-earth neodymium doped nanometer ferric oxide |
| CN105820602A (en) * | 2016-03-24 | 2016-08-03 | 青岛科技大学 | Preparing method of nanometer titanium oxide modified hollow glass beads |
| CN107936752A (en) * | 2017-12-14 | 2018-04-20 | 吴海 | A kind of hollow glass micropearl base fluorine carbon reflective heat-insulation paint and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110894389A (en) | Water-based heat-insulating transparent coating for building glass curtain wall and preparation method thereof | |
| CN113717601A (en) | Waterproof reflective heat-insulating coating and preparation method thereof | |
| CN100344717C (en) | Multifunctional energy-saving coating for building | |
| CN113201258A (en) | Water-based high-reflection transparent finish paint and preparation method thereof | |
| CN112266678A (en) | Waterproof coating for external wall and preparation method thereof | |
| CN113150637A (en) | Water-based heat-insulating transparent coating for building glass curtain wall and preparation method thereof | |
| CN112724755A (en) | Building exterior wall heat insulation coating and preparation method thereof | |
| CN116694161A (en) | Acrylic polyurethane weather-resistant environment-friendly floor paint and preparation process thereof | |
| CN115322675B (en) | Elastic coating and fan blade | |
| CN114874669B (en) | Energy-saving heat-preserving polymer modified asphalt waterproof paint and preparation method thereof | |
| CN110964367A (en) | Reflection-type water-based heat insulation coating and preparation method and application thereof | |
| CN114350219A (en) | Water-based reflective heat-insulation dyed mortar material, preparation method and application thereof, and preparation method of dyed sand | |
| CN115011195A (en) | Water-based heat-insulation reflective composite coating with low heat conductivity coefficient and preparation process thereof | |
| CN113027288A (en) | Preparation method of nano constant-temperature heat-insulation sun-proof door and window | |
| CN112812643A (en) | Outdoor water-based wood coating, preparation method thereof and wood product | |
| CN113234372A (en) | Water-resistant light-weight anticorrosive exterior wall building coating | |
| CN113025144A (en) | Primer-topcoat integrated coating and preparation method thereof | |
| CN115353582B (en) | Heat-insulating acrylic emulsion, reflective heat-insulating waterproof coating, and preparation method and application thereof | |
| CN114525046B (en) | Inorganic reflective heat-insulating light Tao Caidan coating and preparation method thereof | |
| CN118480305A (en) | Solvent-free exposed polyurethane waterproof heat-insulating coating and preparation method thereof | |
| CN111073417B (en) | Reflective heat-insulating coating and preparation method thereof | |
| CN114958128B (en) | High-weather-resistance water-based automobile coating and preparation method thereof | |
| CN114410170B (en) | Energy-saving heat-insulating material and preparation method thereof | |
| CN117487424A (en) | High weather-resistant anti-pollution real stone paint | |
| CN114370172B (en) | Method for renewing and waterproofing metal roof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210803 |