High-molecular organic silicon nano heat-insulating transparent glass paint

Abstract

The invention relates to the technical field of coating preparation, and particularly discloses high-molecular organic silicon nano heat-insulating transparent glass paint and a preparation method thereof. The coating is characterized by comprising 50-80 parts of high-molecular organic silicon resin, 1-15 parts of a nano material, 1-20 parts of a diluent, 0.1-2 parts of a defoaming agent, 0.1-5 parts of a flatting agent, 0-5 parts of a drier, 0.5-3 parts of an adhesion promoter, 0-2 parts of an ultraviolet light absorber and 0-4 parts of an ultraviolet light stabilizer, and is prepared by mixing according to detection requirements of certain indexes such as viscosity, fineness, appearance color and the like. The paint has the main beneficial effects that the paint film is high in heat insulation rate, good in transparency, free of dust, water and rain dirt, good in weather resistance, easy to manufacture and construct and high in construction efficiency, heat insulation of the paint film is achieved, the high-molecular organic silicon resin serves as a film forming matter, the heat insulation effect of the paint film is achieved by adding the nanometer materials, and the paint film is environmentally friendly. Meanwhile, the antifouling and self-cleaning functions of the glass are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of polymer coatings for automobile glass, in particular to a polymer organic silicon nano heat-insulating transparent glass paint for vehicles. Background Art

[0002] In recent years, our company has been authorized with invention patents related to automotive coatings and glass coatings, such as "a self-repairing waterborne polyurethane coating composition and coating", patent number "ZL202010748471.6", "a waterborne epoxy resin coating and its preparation method", patent number "ZL201811190714.8". Through the patented technology, we can produce vehicle varnish with hydroxyl acrylic resin as the main film-forming substance, adding leveling agent, drying agent, and organic solvents such as n-butyl acetate and xylene, and spraying with a spray gun to obtain a bright and smooth varnish coating on the vehicle body.

[0003] Before the invention of this technology, vehicle paint only has the function of anti-corrosion for vehicle sheet metal and beautification of the vehicle. With the rise and popularization of new energy vehicles, energy is an important source of power for various vehicles, and energy consumption is crucial. Whether it is a pure electric vehicle (BEV), a hybrid electric vehicle (HEV) or a fuel cell vehicle (FCEV), energy consumption determines the range of new energy vehicles, and even more determines human protection of the atmosphere and the environment.

[0004] Tests have shown that when a car is exposed to the sun for a long time at a high temperature of 40°C outdoors, the temperature inside the car is above 70 degrees and can reach up to 90 degrees. At this time, after starting the vehicle, it is necessary to use air conditioning to cool the temperature inside the car. In this cooling process, a lot of energy is needed for cooling. In summer, when the vehicle is driving under the scorching sun, a lot of energy is also needed to cool the car so that passengers can ride in a comfortable temperature. When the vehicle is exposed outdoors, it is not only the problem of high temperature inside the car, but also many plastic parts and circuits inside and outside the car will accelerate aging. If it continues for a long time, it will cause serious damage to the vehicle, reduce the service life of the vehicle, and also threaten the personal safety of the passengers.

[0005] At present, the air conditioning and refrigeration of all vehicles consume a lot of electricity. The outdoor temperature and the temperature setting inside the car directly determine the amount of electricity consumed. Now many electric vehicles consume 1%-5% of the battery power per hour (the consumption of vehicles from different manufacturers is different). The air conditioning of oil vehicles will also increase the consumption of gasoline or diesel, which means that turning on the air conditioner will reduce the vehicle's mileage and increase the vehicle's energy consumption. In recent years, our company has successively developed high-temperature original automotive coatings with heat insulation function and low-temperature repair automotive coatings with heat insulation function. These coatings can effectively block the transfer of heat and reduce the temperature inside the car, but there will still be heat transferred to the car through the window glass, which will increase the internal temperature. Therefore, how to effectively block the heat outside the car from being transferred to the car through the glass coating is also a technology that is worth studying.

[0006] In order to solve the above problems, a transparent paint with heat insulation function is applied on the car window glass, and a heat insulation paint with heat insulation function is also applied on the car body, which will greatly block the heat outside the car from being transferred into the car, greatly reduce the impact of the temperature outside the car on the temperature inside the car, and make the temperature inside the car rise slightly or not rise at all, which will definitely save the consumption of electricity, and will inevitably extend the vehicle's cruising range, achieve energy conservation and emission reduction, and protect the atmosphere and environment. At the same time, it can also extend the service life of the vehicle and indirectly protect the life safety of passengers. After years of research and development, our company has developed a polymer organic silicon nano-insulating transparent glass paint for vehicles and its preparation method, and at the same time transformed the preparation method into a set of nano-insulating transparent paint products for glass, which effectively solves and reduces the problem of energy consumption of vehicle air conditioning. Summary of the invention

[0007] The purpose of the present invention is to provide a polymer organic silicon nano thermal insulation transparent glass paint for vehicles to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A polymer organic silicon nano thermal insulation transparent glass paint for vehicles comprises the following materials in parts by weight: 50-80 parts of polymer organic silicon resin, 1-15 parts of nano material, 1-20 parts of diluent, 0.1-2 parts of defoamer, 0.1-5 parts of leveling agent, 0-5 parts of drying agent, 0.5-3 parts of adhesion promoter, 0-2 parts of ultraviolet light absorber and 0-4 parts of ultraviolet light stabilizer.

[0009] As a further solution of the present invention: the following materials are included in parts by weight: 40-70 parts of polymer silicone resin, 1-10 parts of nanomaterials, 1-25 parts of diluents, 0.1-1.5 parts of defoaming agents, 0.1-4 parts of leveling agents, 0-4 parts of drying agents, 0.1-2 parts of adhesion promoters, 1-3 parts of ultraviolet light absorbers, and 1-5 parts of ultraviolet light stabilizers.

[0010] As a further solution of the present invention: the following materials are included in parts by weight: 30-60 parts of polymer silicone resin, 0.1-8 parts of nanomaterials, 1-30 parts of diluents, 0.1-3 parts of defoaming agents, 0.1-5 parts of leveling agents, 0.1-5 parts of drying agents, 0-5 parts of adhesion promoters, 0-3 parts of ultraviolet light absorbers, and 0-5 parts of ultraviolet light stabilizers.

[0011] As a further solution of the present invention: it includes the following materials in parts by weight: 30-80 parts of polymer silicone resin, 0.1-20 parts of nanomaterials, 1-30 parts of diluents, 0.1-5 parts of defoaming agents, 0.1-8 parts of leveling agents, 0.1-8 parts of drying agents, 0-8 parts of adhesion promoters, 0-5 parts of ultraviolet light absorbers, and 0-10 parts of ultraviolet light stabilizers.

[0012] As a further solution of the present invention: the polymer silicone resin can be a self-drying type or a high temperature curing type, and can be oily or water-based.

[0013] As a further solution of the present invention: the nanomaterial is modified ATO nano-slurry, nano-ITO dispersion, nano-ATO dispersion, nano-ITO, nano-GTO insulation powder, nano-zirconium oxide, nano-AZO, silica aerogel powder or silica aerogel paste. According to the thermal insulation performance and cost control, at least one or more combinations are used. The nanomaterial has a low thermal conductivity (after drying, 25°C) of 0.001 to 3W / (m·K) and a particle size of 0.1 to 20μm.

[0014] As a further solution of the present invention: different types of diluents are selected according to the type of the selected silicone resin. When the silicone resin is an oily resin, the diluent can be a combination of organic solvents such as n-butyl acetate, toluene, xylene, and propylene glycol methyl ether acetate. When the silicone resin is a water-based resin, the diluent can be a mixture of deionized water and alcohol organic solvents such as n-butanol.

[0015] As a further solution of the present invention: the defoaming agent is a silicone oil type silicone defoaming agent, an emulsion type silicone defoaming agent, or a polyether modified silicone defoaming agent. When the selected silicone resin is oily, the defoaming agent is a silicone oil type silicone defoaming agent; when the selected silicone resin is water-based, the defoaming agent is an emulsion type silicone defoaming agent; when the selected silicone resin is a high temperature curing type, the defoaming agent is a polyether modified silicone defoaming agent.

[0016] As a further solution of the present invention: the leveling agent is an organic silicone leveling agent, an acrylate leveling agent, or a fluorine-modified leveling agent, and the above leveling agents are used alone or in combination of two or three.

[0017] As a further solution of the present invention: the drying agent is amino silicone oil or diethylenetriamine or triethylenemethylamine.

[0018] As a further solution of the present invention: the adhesion promoter is a silane coupling agent.

[0019] As a further solution of the present invention: the ultraviolet light absorber is a salicylate, a benzophenone, a benzotriazole, a substituted acrylonitrile, a triazine and a hindered amine, which can absorb ultraviolet light with a wavelength of 270-400nm, and different types of ultraviolet light absorbers are selected according to the type of silicone resin; the ultraviolet light stabilizer is a hindered amine light stabilizer.

[0020] A preparation method of a polymer organic silicon nano thermal insulation transparent glass paint for vehicles comprises the following steps:

[0021] S1. Prepare raw materials and test each material according to the standard;

[0022] S2, weighing a high molecular weight silicone resin by weight and slowly adding it into a container, and slowly adding a weight component of nanomaterials under stirring, dispersing it at a speed of 300-500r / min for 10-20min in a disperser, adding 30% by weight of a diluent, and dispersing it at a speed of 300-500r / min for 10-20min in a disperser to obtain a primary nanomaterial mixture;

[0023] At the same time, this step needs to reserve a weight component of high molecular weight silicone resin to adjust the viscosity of the initial nano material mixture;

[0024] S3, the viscosity, fineness, appearance color index of the initial nano material mixture prepared in S2 are tested. After all the indexes are qualified, enter S4. When the viscosity is greater than 52s, add a proper amount of diluent in the material to lower it. When the viscosity is less than 48s, add the high molecular silicone resin reserved in S2 to increase it. Pay special attention to the fact that when measuring the viscosity, the coating 4 cups itself is also required to be 25℃±1. When the indoor temperature is higher than 26℃, the coating 4 cups needs to be cooled with a refrigerator or ice cubes. When the indoor temperature is less than 24℃, the coating 4 cups needs to be heated with an oven. At the same time, the specific indexes are shown in the table below:

[0025]

[0026] S4, weighing the defoaming agent, leveling agent, drying agent, adhesion promoter, ultraviolet light absorber, ultraviolet light stabilizer and the remaining component diluent by weight, slowly adding them to the nano material mixture, and dispersing them at a speed of 500-800r / min with a disperser for 20-30min to obtain a polymer organic silicon nano thermal insulation transparent glass paint for vehicles;

[0027] At the same time, in this step, 5% of the weight of the diluent should be reserved to adjust the viscosity of the polymer nano-insulated water-soluble varnish for vehicle exterior repair;

[0028] S5. Test various indicators of the high molecular organic silicon nano thermal insulation transparent glass paint for vehicles made by S4. When the viscosity is greater than 32s, use the diluent reserved by S4 to lower it. When the viscosity is less than 28s, add the high molecular organic silicon resin reserved by S2 to increase it. Pay special attention to the fact that when measuring the viscosity, the coating 4 cups itself is also required to be 25℃±1. When the indoor temperature is higher than 26℃, it is necessary to use a refrigerator or ice cubes to cool down the coating 4 cups. When the indoor temperature is less than 24℃, it is necessary to use an oven to heat up the coating 4 cups. The specific indicators are shown in the table below:

[0029]

[0030] S6. Filter the qualified vehicle polymer organic silicon nano thermal insulation transparent glass paint tested in S5 using a 300-mesh filter cloth to obtain qualified vehicle polymer organic silicon nano thermal insulation transparent glass paint.

[0031] Other applications or uses of the above-mentioned high molecular weight organic silicon nano thermal insulation transparent glass paint for vehicles in the field of coating preparation.

[0032] Compared with the prior art, the beneficial effects of the present invention are: a kind of polymer organic silicon nano thermal insulation transparent glass paint for vehicles is realized, and the polymer organic silicon resin is used as the main material, and the ratio of nano materials, various diluents, defoamers, leveling agents, drying agents, adhesion promoters, ultraviolet light absorbers, and ultraviolet light stabilizers is adjusted by adding nano materials, various diluents, defoamers, leveling agents, drying agents, adhesion promoters, ultraviolet light absorbers, and ultraviolet light stabilizers, and mixed according to certain detection indicators such as viscosity, fineness, and appearance color, to prepare a transparent paint with high thermal insulation rate, good leveling, high fullness, high hardness, high gloss, and good weather resistance, which is sprayed on the car glass to block the heat outside the car from being transferred to the car, reduce the influence of the temperature outside the car on the temperature inside the car, make the temperature inside the car rise slightly or not, reduce the temperature inside the car, save electricity, increase the vehicle's cruising range, achieve energy conservation and emission reduction, and improve the protection of the atmosphere and the environment. At the same time, it can extend the service life of the vehicle and indirectly protect the life safety of passengers. The product has high thermal insulation rate, easy construction, high construction efficiency, good surface effect, and good weather resistance. It is an environmentally friendly product and can be widely used on automobile body glass. DETAILED DESCRIPTION

[0033] In order to make the public better understand the present invention, the technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0034] Implementation Example 1

[0035] A preparation method for a polymer organic silicon nano thermal insulation transparent glass paint for vehicles comprises the following materials in parts by weight: 50-80 parts of a polymer organic silicon resin, 1-15 parts of a nano material, 1-20 parts of a diluent, 0.1-2 parts of a defoamer, 0.1-5 parts of a leveling agent, 0-5 parts of a drying agent, 0.5-3 parts of an adhesion promoter, 0-2 parts of an ultraviolet light absorber, and 0-4 parts of an ultraviolet light stabilizer.

[0036] Specifically, in this embodiment, the polymer silicone resin is a silicone resin with a solid content of 50-70%, and the resin can be self-drying, with a drying temperature of ≤80°C and a self-drying time of ≤12 hours at 25°C. The resin can also be a high-temperature curing type, with a drying temperature of ≥120°C and a drying time of ≤30 minutes.

[0037] Specifically, in this embodiment, the nanomaterial is modified ATO nano-slurry, nano-ITO dispersion, nano-ATO dispersion, nano-ITO, nano-GTO insulation powder, nano-zirconium oxide, nano-AZO, silica aerogel powder or silica aerogel paste. According to the thermal insulation performance and cost control, at least one or more combinations are used. The nanomaterial has a low thermal conductivity (after drying, 25°C) of 0.001 to 3W / (m·K) and a particle size of 0.1 to 20μm.

[0038] Specifically, in this embodiment, when the silicone resin is oily, the diluent is a composition of organic solvents such as n-butyl acetate, toluene, xylene, propylene glycol methyl ether acetate, and the total moisture content is ≤500ppm; when the silicone resin is a water-based resin, the diluent can be a mixture of deionized water and alcohol organic solvents such as n-butanol, wherein the alcohol organic solvent is a co-solvent, and in order to reduce VOC emissions, the proportion in the diluent is ≤20%.

[0039] Specifically, in this embodiment, the defoamer is a silicone oil type silicone defoamer, an emulsion type silicone defoamer, or a polyether modified silicone defoamer. When the selected silicone resin is oily, the defoamer is a silicone oil type silicone defoamer; when the selected silicone resin is water-based, the defoamer is an emulsion type silicone defoamer; when the selected silicone resin is a high temperature curing type, the defoamer is a polyether modified silicone defoamer, and products of imported manufacturers such as BYK, BASF, and Efka can be used;

[0040] Specifically, in this embodiment, the leveling agent is a silicone leveling agent, a polyester leveling agent, a fluorine-modified leveling agent, and products of manufacturers such as BYK, BASF, and Axal can be used;

[0041] Specifically, in this embodiment, the leveling agent is a silicone leveling agent, an acrylate leveling agent, or a fluorine-modified leveling agent. The above leveling agents are used alone or in combination of two or three. Products of imported manufacturers such as BYK, BASF, Efka, and Covestro can be used.

[0042] Specifically, in this embodiment, the drying agent is amino silicone oil or diethylenetriamine or triethylenemethylamine, which may not be added depending on the drying condition of the resin, and the drying agent may be from any manufacturer;

[0043] Specifically, in this embodiment, the adhesion promoter is a silane coupling agent, which can be from any manufacturer.

[0044] Specifically, in this embodiment, the ultraviolet light absorber is a salicylate, a benzophenone, a benzotriazole, a substituted acrylonitrile, a triazine and a hindered amine, which can absorb ultraviolet light with a wavelength of 270-400nm. Different types of ultraviolet light absorbers are selected according to the type of silicone resin; the ultraviolet light stabilizer is a hindered amine light stabilizer. Depending on the weather resistance of the resin, the ultraviolet light absorber and the ultraviolet light stabilizer may not be added.

[0045] Implementation Example 2

[0046] A preparation method for a polymer organic silicon nano thermal insulation transparent glass paint for vehicles comprises the following materials in parts by weight: 40-70 parts of a polymer organic silicon resin, 1-10 parts of a nano material, 1-25 parts of a diluent, 0.1-1.5 parts of a defoamer, 0.1-4 parts of a leveling agent, 0-4 parts of a drying agent, 0.1-2 parts of an adhesion promoter, 1-3 parts of an ultraviolet light absorber, and 1-5 parts of an ultraviolet light stabilizer.

[0047] Specifically, in this embodiment, the polymer silicone resin is a silicone resin with a solid content of 50-70%, and the resin can be self-drying, with a drying temperature of ≤80°C and a self-drying time of ≤12 hours at 25°C. The resin can also be a high-temperature curing type, with a drying temperature of ≥120°C and a drying time of ≤30 minutes.

[0048] Specifically, in this embodiment, the nanomaterial is modified ATO nano-slurry, nano-ITO dispersion, nano-ATO dispersion, nano-ITO, nano-GTO insulation powder, nano-zirconium oxide, nano-AZO, silica aerogel powder or silica aerogel paste. According to the thermal insulation performance and cost control, at least one or more combinations are used. The nanomaterial has a low thermal conductivity (after drying, 25°C) of 0.001 to 3W / (m·K) and a particle size of 0.1 to 20μm.

[0049] Specifically, in this embodiment, when the silicone resin is oily, the diluent is a composition of organic solvents such as n-butyl acetate, toluene, xylene, propylene glycol methyl ether acetate, and the total moisture content is ≤500ppm; when the silicone resin is a water-based resin, the diluent can be a mixture of deionized water and alcohol organic solvents such as n-butanol, wherein the alcohol organic solvent is a co-solvent, and in order to reduce VOC emissions, the proportion in the diluent is ≤20%.

[0050] Specifically, in this embodiment, the defoamer is a silicone oil type silicone defoamer, an emulsion type silicone defoamer, or a polyether modified silicone defoamer. When the selected silicone resin is oily, the defoamer is a silicone oil type silicone defoamer; when the selected silicone resin is water-based, the defoamer is an emulsion type silicone defoamer; when the selected silicone resin is a high temperature curing type, the defoamer is a polyether modified silicone defoamer, and products of imported manufacturers such as BYK, BASF, and Efka can be used;

[0051] Specifically, in this embodiment, the leveling agent is a silicone leveling agent, a polyester leveling agent, a fluorine-modified leveling agent, and products of manufacturers such as BYK, BASF, and Axal can be used;

[0052] Specifically, in this embodiment, the leveling agent is a silicone leveling agent, an acrylate leveling agent, or a fluorine-modified leveling agent. The above leveling agents are used alone or in combination of two or three. Products of imported manufacturers such as BYK, BASF, Efka, and Covestro can be used.

[0053] Specifically, in this embodiment, the drying agent is amino silicone oil or diethylenetriamine or triethylenemethylamine, any manufacturer can be used;

[0054] Specifically, in this embodiment, the adhesion promoter is a silane coupling agent. Depending on the adhesion of the resin to the glass, the adhesion promoter may not be added, and the adhesion promoter may be from any manufacturer.

[0055] Specifically, in this embodiment, the ultraviolet light absorber is a salicylate, a benzophenone, a benzotriazole, a substituted acrylonitrile, a triazine and a hindered amine, which can absorb ultraviolet light with a wavelength of 270-400nm. Different types of ultraviolet light absorbers are selected according to the type of silicone resin; the ultraviolet light stabilizer is a hindered amine light stabilizer.

[0056] Implementation Example 3

[0057] A preparation method for a polymer organic silicon nano thermal insulation transparent glass paint for vehicles comprises the following materials in parts by weight: 30-60 parts of a polymer organic silicon resin, 0.1-8 parts of a nano material, 1-30 parts of a diluent, 0.1-3 parts of a defoamer, 0.1-5 parts of a leveling agent, 0.1-5 parts of a drying agent, 0-5 parts of an adhesion promoter, 0-3 parts of an ultraviolet light absorber, and 0-5 parts of an ultraviolet light stabilizer.

[0058] Specifically, in this embodiment, the polymer silicone resin is a silicone resin with a solid content of 50-70%, and the resin can be self-drying, with a drying temperature of ≤80°C and a self-drying time of ≤12 hours at 25°C. The resin can also be a high-temperature curing type, with a drying temperature of ≥120°C and a drying time of ≤30 minutes.

[0059] Specifically, in this embodiment, the nanomaterial is modified ATO nano-slurry, nano-ITO dispersion, nano-ATO dispersion, nano-ITO, nano-GTO insulation powder, nano-zirconium oxide, nano-AZO, silica aerogel powder or silica aerogel paste. According to the thermal insulation performance and cost control, at least one or more combinations are used. The nanomaterial has a low thermal conductivity (after drying, 25°C) of 0.001 to 3W / (m·K) and a particle size of 0.1 to 20μm.

[0060] Specifically, in this embodiment, when the silicone resin is oily, the diluent is a composition of organic solvents such as n-butyl acetate, toluene, xylene, propylene glycol methyl ether acetate, and the total moisture content is ≤500ppm; when the silicone resin is a water-based resin, the diluent can be a mixture of deionized water and alcohol organic solvents such as n-butanol, wherein the alcohol organic solvent is a co-solvent, and in order to reduce VOC emissions, the proportion in the diluent is ≤20%.

[0061] Specifically, in this embodiment, the defoamer is a silicone oil type silicone defoamer, an emulsion type silicone defoamer, or a polyether modified silicone defoamer. When the selected silicone resin is oily, the defoamer is a silicone oil type silicone defoamer; when the selected silicone resin is water-based, the defoamer is an emulsion type silicone defoamer; when the selected silicone resin is a high temperature curing type, the defoamer is a polyether modified silicone defoamer, and products of imported manufacturers such as BYK, BASF, and Efka can be used;

[0062] Specifically, in this embodiment, the leveling agent is a silicone leveling agent, a polyester leveling agent, a fluorine-modified leveling agent, and products of manufacturers such as BYK, BASF, and Axal can be used;

[0063] Specifically, in this embodiment, the leveling agent is a silicone leveling agent, an acrylate leveling agent, or a fluorine-modified leveling agent. The above leveling agents are used alone or in combination of two or three. Products of imported manufacturers such as BYK, BASF, Efka, and Covestro can be used.

[0064] Specifically, in this embodiment, the drying agent is amino silicone oil or diethylenetriamine or triethylenemethylamine, any manufacturer can be used;

[0065] Specifically, in this embodiment, the adhesion promoter is a silane coupling agent. Depending on the adhesion of the resin to the glass, the adhesion promoter may not be added, and the adhesion promoter may be from any manufacturer.

[0066] Specifically, in this embodiment, the ultraviolet light absorber is a salicylate, a benzophenone, a benzotriazole, a substituted acrylonitrile, a triazine and a hindered amine, which can absorb ultraviolet light with a wavelength of 270-400nm. Different types of ultraviolet light absorbers are selected according to the type of silicone resin; the ultraviolet light stabilizer is a hindered amine light stabilizer. Depending on the weather resistance of the resin, the ultraviolet light absorber and the ultraviolet light stabilizer may not be added.

[0067] Implementation Example 4

[0068] A preparation method for a polymer organic silicon nano thermal insulation transparent glass paint for vehicles comprises the following materials in parts by weight: 30-80 parts of a polymer organic silicon resin, 0.1-20 parts of a nano material, 1-30 parts of a diluent, 0.1-5 parts of a defoamer, 0.1-8 parts of a leveling agent, 0.1-8 parts of a drying agent, 0-8 parts of an adhesion promoter, 0-5 parts of an ultraviolet light absorber, and 0-10 parts of an ultraviolet light stabilizer.

[0069] Specifically, in this embodiment, the polymer silicone resin is a silicone resin with a solid content of 50-70%, and the resin can be self-drying, with a drying temperature of ≤80°C and a self-drying time of ≤12 hours at 25°C. The resin can also be a high-temperature curing type, with a drying temperature of ≥120°C and a drying time of ≤30 minutes.

[0070] Specifically, in this embodiment, the nanomaterial is modified ATO nano-slurry, nano-ITO dispersion, nano-ATO dispersion, nano-ITO, nano-GTO insulation powder, nano-zirconium oxide, nano-AZO, silica aerogel powder or silica aerogel paste. According to the thermal insulation performance and cost control, at least one or more combinations are used. The nanomaterial has a low thermal conductivity (after drying, 25°C) of 0.001 to 3W / (m·K) and a particle size of 0.1 to 20μm.

[0071] Specifically, in this embodiment, when the silicone resin is oily, the diluent is a composition of organic solvents such as n-butyl acetate, toluene, xylene, propylene glycol methyl ether acetate, and the total moisture content is ≤500ppm; when the silicone resin is a water-based resin, the diluent can be a mixture of deionized water and alcohol organic solvents such as n-butanol, wherein the alcohol organic solvent is a co-solvent, and in order to reduce VOC emissions, the proportion in the diluent is ≤20%.

[0072] Specifically, in this embodiment, the defoamer is a silicone oil type silicone defoamer, an emulsion type silicone defoamer, or a polyether modified silicone defoamer. When the selected silicone resin is oily, the defoamer is a silicone oil type silicone defoamer; when the selected silicone resin is water-based, the defoamer is an emulsion type silicone defoamer; when the selected silicone resin is a high temperature curing type, the defoamer is a polyether modified silicone defoamer, and products of imported manufacturers such as BYK, BASF, and Efka can be used;

[0073] Specifically, in this embodiment, the leveling agent is a silicone leveling agent, a polyester leveling agent, a fluorine-modified leveling agent, and products of manufacturers such as BYK, BASF, and Axal can be used;

[0074] Specifically, in this embodiment, the leveling agent is a silicone leveling agent, an acrylate leveling agent, or a fluorine-modified leveling agent. The above leveling agents are used alone or in combination of two or three. Products of imported manufacturers such as BYK, BASF, Efka, and Covestro can be used.

[0075] Specifically, in this embodiment, the drying agent is amino silicone oil or diethylenetriamine or triethylenemethylamine, any manufacturer can be used;

[0076] Specifically, in this embodiment, the adhesion promoter is a silane coupling agent. Depending on the adhesion of the resin to the glass, the adhesion promoter may not be added, and the adhesion promoter may be from any manufacturer.

[0077] Specifically, in this embodiment, the ultraviolet light absorber is a salicylate, a benzophenone, a benzotriazole, a substituted acrylonitrile, a triazine and a hindered amine, which can absorb ultraviolet light with a wavelength of 270-400nm. Different types of ultraviolet light absorbers are selected according to the type of silicone resin; the ultraviolet light stabilizer is a hindered amine light stabilizer. Depending on the weather resistance of the resin, the ultraviolet light absorber and the ultraviolet light stabilizer may not be added.

[0078] The preparation of the above-mentioned polymer organic silicon nano thermal insulation transparent glass paint for vehicles also includes the following steps:

[0079] S1. Select the solvent raw materials according to the components and test each material to ensure it meets the standards;

[0080] S2, weighing a high molecular weight silicone resin by weight and slowly adding it into a container, and slowly adding a weight component of nanomaterials under stirring, dispersing it at a speed of 300-500r / min for 10-20min in a disperser, adding 30% by weight of a diluent, and dispersing it at a speed of 300-500r / min for 10-20min in a disperser to obtain a primary nanomaterial mixture;

[0081] At the same time, this step needs to reserve a weight component of high molecular weight silicone resin to adjust the viscosity of the initial nano material mixture;

[0082] S3, the viscosity, fineness, appearance color index of the initial nano material mixture prepared in S2 are tested. After all the indexes are qualified, enter S4. When the viscosity is greater than 52s, add a proper amount of diluent in the material to lower it. When the viscosity is less than 48s, add the high molecular silicone resin reserved in S2 to increase it. Pay special attention to the fact that when measuring the viscosity, the coating 4 cups itself is also required to be 25℃±1. When the indoor temperature is higher than 26℃, the coating 4 cups needs to be cooled with a refrigerator or ice cubes. When the indoor temperature is less than 24℃, the coating 4 cups needs to be heated with an oven. At the same time, the specific indexes are shown in the table below:

[0083]

[0084] S4, weighing the defoaming agent, leveling agent, drying agent, adhesion promoter, ultraviolet light absorber, ultraviolet light stabilizer and the remaining component diluent by weight, slowly adding them to the nano material mixture, and dispersing them at a speed of 500-800r / min with a disperser for 20-30min to obtain a polymer organic silicon nano thermal insulation transparent glass paint for vehicles;

[0085] At the same time, in this step, 5% of the weight of the diluent should be reserved to adjust the viscosity of the polymer nano-insulated water-soluble varnish for vehicle exterior repair;

[0086] S5. Test various indicators of the high molecular organic silicon nano thermal insulation transparent glass paint for vehicles made by S4. When the viscosity is greater than 32s, use the diluent reserved by S4 to lower it. When the viscosity is less than 28s, add the high molecular organic silicon resin reserved by S2 to increase it. Pay special attention to the fact that when measuring the viscosity, the coating 4 cups itself is also required to be 25℃±1. When the indoor temperature is higher than 26℃, it is necessary to use a refrigerator or ice cubes to cool down the coating 4 cups. When the indoor temperature is less than 24℃, it is necessary to use an oven to heat up the coating 4 cups. The specific indicators are shown in the table below:

[0087]

[0088] S6. Filter the qualified vehicle polymer organic silicon nano thermal insulation transparent glass paint tested in S5 using a 300-mesh filter cloth to obtain qualified vehicle polymer organic silicon nano thermal insulation transparent glass paint.

[0089] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0090] The above-mentioned high molecular weight organic silicon nano thermal insulation transparent glass paint for vehicles is used for other applications or other uses in the field of paint preparation.

[0091] In addition, compared with the vehicle paint and glass paint in the prior art, the key is to use nanomaterials with low thermal conductivity, which can effectively block the increase in the temperature inside the vehicle caused by the external heat of the vehicle, reduce the temperature inside the vehicle, and reduce the energy consumption of air conditioning, which can greatly increase the vehicle mileage, save energy and reduce emissions, and improve the protection of the atmosphere and the environment. At the same time, it can extend the service life of the vehicle and indirectly protect the life safety of passengers. This product has high thermal insulation rate, easy construction, high construction efficiency, good surface effect, and good weather resistance. It is an environmentally friendly product and can be widely used on vehicle glass.

[0092] The window glass surface is sprayed with a silicone nano thermal insulation transparent glass paint prepared by a method for preparing a polymer silicone nano thermal insulation transparent glass paint for vehicles, and compared with the window glass without thermal insulation coating, the comparison of the external and internal temperatures of the vehicle is as follows:

[0093]

[0094]

[0095] It can be seen from the above table that the use of the polymer organic silicon nano thermal insulation transparent glass paint for vehicles of the present invention can achieve a significant thermal insulation effect.

Claims

1. A polymer organic silicon nano thermal insulation transparent glass paint for vehicles, comprising the following materials in parts by weight: 50-80 parts of polymer organic silicon resin, 1-15 parts of nano material, 1-20 parts of diluent, 0.1-2 parts of defoamer, 0.1-5 parts of leveling agent, 0-5 parts of drying agent, 0.5-3 parts of adhesion promoter, 0-2 parts of ultraviolet absorber, and 0-4 parts of ultraviolet stabilizer.

2. The polymer organic silicon nano thermal insulation transparent glass paint for vehicles according to claim 1, characterized in that The invention comprises the following materials in parts by weight: 40-70 parts of high molecular weight silicone resin, 1-10 parts of nano material, 1-25 parts of diluent, 0.1-1.5 parts of defoaming agent, 0.1-4 parts of leveling agent, 0-4 parts of drying agent, 0.1-2 parts of adhesion promoter, 1-3 parts of ultraviolet light absorber and 1-5 parts of ultraviolet light stabilizer.

3. The polymer organic silicon nano thermal insulation transparent glass paint for vehicles according to claim 1, characterized in that The invention comprises the following materials in parts by weight: 30-60 parts of high molecular weight silicone resin, 0.1-8 parts of nano material, 1-30 parts of diluent, 0.1-3 parts of defoaming agent, 0.1-5 parts of leveling agent, 0.1-5 parts of drying agent, 0-5 parts of adhesion promoter, 0-3 parts of ultraviolet light absorber and 0-5 parts of ultraviolet light stabilizer.

4. The polymer organic silicon nano thermal insulation transparent glass paint for vehicles according to claim 1, characterized in that The invention comprises the following materials in parts by weight: 30-80 parts of high molecular weight silicone resin, 0.1-20 parts of nanomaterials, 1-30 parts of diluents, 0.1-5 parts of defoaming agents, 0.1-8 parts of leveling agents, 0.1-8 parts of drying agents, 0-8 parts of adhesion promoters, 0-5 parts of ultraviolet light absorbers and 0-10 parts of ultraviolet light stabilizers.

5. The polymer organic silicon nano thermal insulation transparent glass paint for vehicles according to any one of claims 1 to 4, characterized in that The polymer organic silicon nano heat-insulating transparent glass paint for vehicles adopts a resin which is a polymer organic silicon resin which is a self-drying type or a high-temperature curing type and is oily or water-based.

6. The polymer organic silicon nano thermal insulation transparent glass paint for vehicles according to any one of claims 1 to 4, characterized in that The nanomaterials used in the polymer organic silicon nano thermal insulation transparent glass paint for vehicles are modified ATO nano slurry, nano ITO dispersion, nano ATO dispersion, nano ITO, nano GTO thermal insulation powder, nano zirconium oxide, nano AZO, silica aerogel powder or silica aerogel paste. According to the thermal insulation performance and cost control, at least one or more combinations are used. The nanomaterial has a low thermal conductivity (after drying, 25° C.) of 0.001 to 3 W / (m·K) and a particle size of 0.1 to 20 μm.

7. The polymer organic silicon nano thermal insulation transparent glass paint for vehicles according to any one of claims 1 to 4, characterized in that The diluent used in the vehicle-use polymer organic silicon nano-insulated transparent glass paint is selected according to the type of the selected organic silicon resin. Different types of diluents are selected. When the organic silicon resin is an oily resin, the diluent can be a combination of organic solvents such as n-butyl acetate, toluene, xylene, and propylene glycol methyl ether acetate. When the organic silicon resin is a water-based resin, the diluent can be a mixture of deionized water and alcohol organic solvents such as n-butanol. The defoaming agent used in the polymer silicone nano-insulating transparent glass paint for vehicles is a silicone oil-type silicone defoaming agent, an emulsion-type silicone defoaming agent, and a polyether-modified silicone defoaming agent. When the selected silicone resin is oily, the defoaming agent is a silicone oil-type silicone defoaming agent; when the selected silicone resin is water-based, the defoaming agent is an emulsion-type silicone defoaming agent; when the selected silicone resin is a high-temperature curing type, the defoaming agent is a polyether-modified silicone defoaming agent.

8. The polymer organic silicon nano thermal insulation transparent glass paint for vehicles according to any one of claims 1 to 4, characterized in that The leveling agent used in the polymer organic silicon nano thermal insulation transparent glass paint for vehicles is an organic silicon leveling agent, an acrylate leveling agent, or a fluorine-modified leveling agent, and the above leveling agents are used alone or in combination of two or three thereof; The drying agent used in the polymer organic silicon nano thermal insulation transparent glass paint for vehicles is amino silicone oil or diethylenetriamine or triethylenemethylamine; The adhesion promoter used in the polymer organic silicon nano thermal insulation transparent glass paint for vehicles is a silane coupling agent; The ultraviolet light absorbers used in the polymer organic silicon nano thermal insulation transparent glass paint for vehicles are salicylates, benzophenones, benzotriazoles, substituted acrylonitriles, triazines and hindered amines, which can absorb ultraviolet light with a wavelength of 270-400nm. Different types of ultraviolet light absorbers are selected according to the type of organic silicon resin; the ultraviolet light stabilizer is a hindered amine light stabilizer.

9. An application of a polymer organic silicon nano thermal insulation transparent glass paint for vehicles as claimed in any one of claims 1 to 4, characterized in that: The use of high molecular weight organic silicon nano-thermal insulation transparent glass paint for vehicles is an application in the field of coating preparation.

10. A method for preparing the polymer organic silicon nano thermal insulation transparent glass paint for vehicles as claimed in any one of claims 1 to 4, characterized in that: These include: S1. Prepare raw materials and test each material according to the standards; S2, weighing a high molecular weight silicone resin by weight and slowly adding it into a container, and slowly adding a weight component of nanomaterials under stirring, dispersing it at a speed of 300-500r / min for 10-20min in a disperser, adding 30% by weight of a diluent, and dispersing it at a speed of 300-500r / min for 10-20min in a disperser to obtain a primary nanomaterial mixture; At the same time, this step needs to reserve a weight component of high molecular weight silicone resin to adjust the viscosity of the initial nano material mixture; S3, the viscosity, fineness, appearance color index of the initial nano material mixture prepared in S2 are tested. After all the indexes are qualified, enter S4. When the viscosity is greater than 52s, add a proper amount of diluent in the material to lower it. When the viscosity is less than 48s, add the high molecular silicone resin reserved in S2 to increase it. Pay special attention to the fact that when measuring the viscosity, the coating 4 cups itself is also required to be 25℃±1. When the indoor temperature is higher than 26℃, the coating 4 cups needs to be cooled with a refrigerator or ice cubes. When the indoor temperature is less than 24℃, the coating 4 cups needs to be heated with an oven. At the same time, the specific indexes are shown in the table below: S4, weighing the defoaming agent, leveling agent, drying agent, adhesion promoter, ultraviolet light absorber, ultraviolet light stabilizer and the remaining component diluent by weight, slowly adding them to the nano material mixture, and dispersing them at a speed of 500-800r / min with a disperser for 20-30min to obtain a polymer organic silicon nano thermal insulation transparent glass paint for vehicles; At the same time, in this step, 5% of the weight of the diluent should be reserved to adjust the viscosity of the polymer nano-insulated water-soluble varnish for vehicle exterior repair; S5. Test various indicators of the high molecular organic silicon nano thermal insulation transparent glass paint for vehicles made by S4. When the viscosity is greater than 32s, use the diluent reserved by S4 to lower it. When the viscosity is less than 28s, add the high molecular organic silicon resin reserved by S2 to increase it. Pay special attention to the fact that when measuring the viscosity, the coating 4 cups itself is also required to be 25℃±1. When the indoor temperature is higher than 26℃, it is necessary to use a refrigerator or ice cubes to cool down the coating 4 cups. When the indoor temperature is less than 24℃, it is necessary to use an oven to heat up the coating 4 cups. The specific indicators are shown in the table below: S6. Filter the qualified vehicle polymer organic silicon nano thermal insulation transparent glass paint tested in S5 using a 300-mesh filter cloth to obtain qualified vehicle polymer organic silicon nano thermal insulation transparent glass paint.

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