Preparation method of a nano constant temperature heat insulation and sun protection door and window

Abstract

The present invention discloses a preparation method of a nano-constant temperature heat-insulating and sun-proof door and window, comprising the following steps: Step 1, preparing a nano-constant temperature heat-insulating material according to a formula; Step 2, installing a door and window frame, door and window glass and a sealing strip into a door and window body; Step 3, coating the nano-constant temperature heat-insulating material on the surfaces of the door and window glass and the door and window frame of the door and window body to obtain the nano-constant temperature heat-insulating and sun-proof door and window; wherein, in Step 1, the nano-constant temperature heat-insulating material is composed of the following components in parts by weight: 60-100 parts of fluorosilicone resin, 10-20 parts of modified silica microspheres, 20-40 parts of organic solvent, 3-8 parts of nano-oxide and 10-20 parts of auxiliary agent. By disclosing a preparation method of a nano-constant temperature heat-insulating and sun-proof door and window, the heat-insulating and sun-proof door and window includes a frame, glass and a sealing strip, and the self-made nano-constant temperature heat-insulating material of the present invention is coated after assembly, thereby realizing a production line from raw materials to finished products.

Description

Technical Field

[0001] The present invention relates to the field of thermostatic heat-insulating materials, and particularly to a preparation method of nano-thermostatic heat-insulating and sun-proof doors and windows. Background Art

[0002] With the popularization of the concept of ecological environmental protection, the construction field has also raised the requirements for the ecological environmental protection of building materials. To make the temperature and humidity inside the building suitable, warm in winter and cool in summer, and reduce the dependence on electronic products such as air conditioners, not only reasonable building design and environmentally friendly and energy-saving building materials are required, but also the doors and windows need to achieve a high energy-saving rate.

[0003] Currently, more and more aluminum alloy heat-insulating and energy-saving doors and windows and curtain walls are used on buildings. Such building energy-saving doors and windows and curtain walls can not only meet the requirements of structural rigidity, but also are light, beautiful, can achieve functions such as dual colors inside and outside, and are convenient for the installation of corresponding accessories. However, since the aluminum alloy window frame is a good conductor of heat and the heat-insulating performance of ordinary glass is very limited, the temperature changes greatly in summer and winter, and it is necessary to turn on the indoor air conditioner or heater for refrigeration or heating, which will cause rapid heat conduction between indoor and outdoor, reducing the energy utilization rate. Summary of the Invention

[0004] In view of the above problems, the present invention provides a preparation method of nano-thermostatic heat-insulating and sun-proof doors and windows, including the following steps:

[0005] Step 1, prepare nano-thermostatic heat-insulating materials according to the formula;

[0006] Step 2, install the door and window frame, door and window glass and sealing strip into the door and window body;

[0007] Step 3, coat the nano-thermostatic heat-insulating materials on the surfaces of the door and window glass and the door and window frame of the door and window body to obtain nano-thermostatic heat-insulating and sun-proof doors and windows;

[0008] Among them, in Step 1, the nano-thermostatic heat-insulating materials are composed of the following components according to weight parts:

[0009] 60-100 parts of fluorosilicone resin, 10-20 parts of modified silica microspheres, 20-40 parts of organic solvents, 3-8 parts of nano-oxides and 10-20 parts of additives.

[0010] Preferably, in Step 2, first install the door and window glass on the door and window frame, then install the sealing strip coated with an adhesive in the gap between the door and window frame and the door and window glass, and then continue to use the adhesive to further repair and fill the sealing strip that is not fully adhered to make it completely sealed.

[0011] Preferably, in the step 3, the door and window glass and the door and window frame coated with the nano-constant temperature heat insulation material are placed in an environment of 50-70 °C for drying treatment to obtain the nano-constant temperature heat insulation and sun protection doors and windows.

[0012] Preferably, the door and window frame is a metal alloy frame or a plastic frame. Among them, the metal alloy frame is one of an aluminum alloy frame, a magnesium alloy frame, and an aluminum-magnesium alloy frame, and the plastic frame is a U-PVC plastic frame; the material of the door and window glass is high borosilicate transparent glass.

[0013] Preferably, the material of the sealing strip is one or more combinations of polypropylene, ethylene propylene diene monomer rubber, SBS elastomer, and butyl rubber.

[0014] Preferably, the solid content of the fluorosilicone resin is 30-60%.

[0015] Preferably, the organic solvent is obtained by mixing methyl ethyl ketoxime and propylene glycol methyl ether acetate in a weight ratio of 1:2.

[0016] Preferably, the nano-oxide is one or more combinations of nano-titanium dioxide, nano-cerium oxide, and nano-aluminum oxide.

[0017] Preferably, the auxiliary agents include a curing agent, a leveling agent, an antifoaming agent, and a wetting and dispersing agent in a weight ratio of 5-10:0.2-0.5:0.2-0.5:1; among them, the curing agent is Desmodur N-3390, the leveling agent is BYK-361N and / or BYK-358N, the antifoaming agent is BYK-070 and / or BYK-088, and the wetting and dispersing agent is BYK-P104.

[0018] Preferably, the preparation method of the modified silica microspheres is as follows:

[0019] S1. Weigh ammonium zirconium carbonate and add it to deionized water, and stir at room temperature until completely dissolved to obtain an ammonium zirconium carbonate solution;

[0020] Among them, the weight ratio of ammonium zirconium carbonate to deionized water is 1:20-30;

[0021] S2. Weigh chromium nicotinate and add it to deionized water, ultrasonically disperse it until uniform, then place it under ice-water bath conditions, dropwise add the ammonium zirconium carbonate solution while stirring, and continue to stir and react for 5-10 h after complete dropping. Filter and collect the solid, wash the collected solid with distilled water 3-5 times, and then dry it at 80-100 °C to constant weight to obtain a zirconium-chromium organic complex;

[0022] Among them, the weight ratio of chromium nicotinate to deionized water is 1:10-20; the weight ratio of chromium nicotinate to the ammonium zirconium carbonate solution is 1:15-25;

[0023] S3. Add tetraethyl orthosilicate to the ethanol solution, add cetyltrimethylammonium bromide, stir until homogeneous, then dropwise add ammonia water until the pH is 8.0 - 9.0. After stirring at room temperature for 2 - 3 h, add the zirconium-chromium organic complex, slowly heat up to 55 - 65 °C while stirring, keep the temperature for reaction for 2 - 5 h, then place it in a muffle furnace, heat up to 550 - 650 °C, and then perform heat treatment for 2 - 5 h to obtain modified silica microspheres;

[0024] Among them, the mass fraction of the ethanol solution is 30 - 70%, the weight ratio of tetraethyl orthosilicate, cetyltrimethylammonium bromide to the ethanol solution is 1:0.01 - 0.03:2 - 5, the weight ratio of the zirconium-chromium organic complex to tetraethyl orthosilicate is 1:3 - 5, and the rate of slow heating is 1 - 3 °C / min.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The present invention discloses a preparation method of a nano-constant temperature heat-insulating and sun-proof door and window. The heat-insulating and sun-proof door and window includes a frame, glass and a sealing strip. After assembly, the self-made nano-constant temperature heat-insulating material of the present invention is coated, thus realizing a production line from raw materials to finished products. The self-made nano-constant temperature heat-insulating material of the present invention has good heat-insulating and sun-proof performance. The fluorosilicone resin added therein has excellent heat resistance, anti-adhesion, chemical resistance, anti-fouling and decorative properties, so it is used as a basic raw material. The modified silica microspheres can collect excess heat as a heat-insulating filler, release it smoothly in a timely manner, with a small gradient change, effectively reducing the loss amount, thereby increasing the heat preservation performance of the coating; the nano-particles of the nano-oxide have a large surface area and many surface active centers, which can effectively improve the sun-proof and anti-aging performance of the coating, making the coating have good salt spray resistance, water and oil resistance.

[0027] 2. Most of the existing heat-insulating materials use silica as a heat-insulating filler. The present invention improves on this basis and prepares a modified silica microsphere, which has good performance in heat insulation. Silica has good thermal stability and compatibility. The research on its preparation and properties has always been one of the hotspots in the field of materials science. Silica hollow microspheres have special mechanical and thermal properties and good fluidity, and can be used as lightweight heat-insulating, heat-preserving and flame-retardant materials. However, when silica is used as a heat-insulating filler, a series of problems such as cracking on the coating surface, low strength, poor impact resistance and poor dispersibility will inevitably occur, resulting in that this material cannot be well used in actual production and life.

[0028] 3. The present invention has made improvements to the defects of silica. Among them, ammonium zirconium carbonate and chromium nicotinate are used as reaction dopants. When ammonium zirconium carbonate and chromium nicotinate are doped into the reaction for preparing silica microspheres, they will also undergo certain reactions themselves. As a result, in the finally obtained modified silica microspheres, chromium and zirconium elements are not only fully cross-linked with silica, but also evenly dispersed. At the same time, the generated partial zirconium silicate and chromium oxide compounds further enhance the properties of the silica microspheres, improve the defects of easy cracking, low strength, and poor impact resistance that occur when the silica microspheres are used as heat-insulating fillers, and also improve the dispersibility of the silica microspheres in fluorosilicone resin. More importantly, the heat-insulating performance of the coating is improved.

[0029] 4. When preparing modified silica microspheres, first, ammonium zirconium carbonate reacts with chromium nicotinate at a low temperature environment. The zirconium in ammonium zirconium carbonate exists in the form of anionic hydroxylated zirconium poly-mer, which has a strong binding force to organic substances such as hydroxyl groups and carboxyl groups. Therefore, it can combine with the carboxyl groups in chromium nicotinate to form a stable functional group structure, thereby obtaining a zirconium-chromium organic complex composed of metal element zirconium, metal element chromium, and an organic functional group (the combination of nicotinic acid and hydroxyl group). Then, silica microspheres are prepared by using the sol-gel method through a silicon source (tetraethyl orthosilicate). During this process, the zirconium-chromium organic complex is added. Due to the organic functional groups in it, the zirconium-chromium organic complex can be more evenly dispersed and more tightly combined in the silicon source. Therefore, metal element zirconium and metal element chromium are also evenly dispersed in the generated silica microspheres. In the subsequent process of heating the muffle furnace to 550 - 650 °C, the nicotinic acid groups contained in the organic functional groups decompose again. And because the boiling point of nicotinic acid is relatively low (292.5 °C), it can volatilize from the inside of the microspheres through the surface of the microspheres, thereby forming a complex and intricate pore structure inside the microspheres.

[0030] 5. The modified silica microspheres prepared by the present invention contain not only a large amount of silica, but also partial zirconium silicate, zirconium oxide, and chromium oxide evenly dispersed in the microspheres. Zirconium silicate and zirconium oxide both have relatively low thermal expansion coefficients and relatively high refractive indices. Therefore, they can reduce the cracking of the coating, enhance the stability and light transmittance of the coating. The chromium oxide crystal is extremely hard, with a dense crystal form and extremely high stability. Therefore, it can enhance the strength and impact resistance of the coating. Detailed implementation mode

[0031] The present invention will be further described in combination with the following embodiments.

[0032] Example 1

[0033] A preparation method of a nano-constant temperature heat-insulating and sun-proof door and window includes the following steps:

[0034] Step 1, prepare a nano-constant temperature heat-insulating material according to the formula;

[0035] Step 2: Install the door and window frame, door and window glass, and sealing strip to form the door and window body.

[0036] Step 3: Coat the surface of the door and window glass and the door and window frame of the door and window body with the nano-constant temperature heat insulation material to obtain the nano-constant temperature heat insulation and sun protection door and window.

[0037] Among them, in Step 1, the nano-constant temperature heat insulation material is composed of the following components by weight:

[0038] 80 parts of fluorosilicone resin, 15 parts of modified silica microspheres, 30 parts of organic solvent, 5 parts of nano-oxide, and 15 parts of auxiliary agent.

[0039] In the said Step 2, first install the door and window glass on the door and window frame, then install the sealing strip coated with adhesive in the gap between the door and window frame and the door and window glass, and then continue to use the adhesive to further repair and fill the unsealed sealing strip to make it completely sealed.

[0040] In the said Step 3, place the door and window glass and the door and window frame coated with the nano-constant temperature heat insulation material in an environment of 50 - 70 °C for drying treatment to obtain the nano-constant temperature heat insulation and sun protection door and window.

[0041] The said door and window frame is a metal alloy frame or a plastic frame. Among them, the metal alloy frame is one of an aluminum alloy frame, a magnesium alloy frame, and an aluminum-magnesium alloy frame, and the plastic frame is a U-PVC plastic frame; the material of the said door and window glass is high borosilicate transparent glass.

[0042] The material of the said sealing strip is one or a combination of polypropylene, ethylene propylene diene monomer rubber, SBS elastomer, and butyl rubber.

[0043] The solid content of the said fluorosilicone resin is 30 - 60%.

[0044] The said organic solvent is obtained by mixing methyl ethyl ketoxime and propylene glycol monomethyl ether acetate in a weight ratio of 1:2.

[0045] The said nano-oxide is one or a combination of nano-titanium dioxide, nano-cerium oxide, and nano-aluminum oxide.

[0046] The said auxiliary agent includes a curing agent, a leveling agent, an antifoaming agent, and a wetting and dispersing agent in a weight ratio of 8:0.3:0.4:1; among them, the curing agent is Desmodur N-3390, the leveling agent is BYK-361N, the antifoaming agent is BYK-070, and the wetting and dispersing agent is BYK-P104.

[0047] The preparation method of the said modified silica microspheres is:

[0048] S1. Weigh ammonium zirconium carbonate and add it to deionized water. Stir at room temperature until it is completely dissolved to obtain an ammonium zirconium carbonate solution;

[0049] Among them, the weight ratio of ammonium zirconium carbonate to deionized water is 1:25;

[0050] S2. Weigh chromium nicotinate and add it to deionized water. After ultrasonic dispersion until it is uniform, place it under an ice-water bath condition. While stirring, dropwise add the ammonium zirconium carbonate solution. After complete dropwise addition, continue stirring and reacting for 5 - 10 h, filter and collect the solid. Wash the collected solid with distilled water 3 - 5 times and then dry it at 80 - 100 °C until it reaches a constant weight to obtain a zirconium-chromium organic complex;

[0051] Among them, the weight ratio of chromium nicotinate to deionized water is 1:15; the weight ratio of chromium nicotinate to the ammonium zirconium carbonate solution is 1:20;

[0052] S3. Add tetraethyl orthosilicate to an ethanol solution, add cetyltrimethylammonium bromide, stir until it is uniform, then dropwise add ammonia water until the pH is 8.0 - 9.0. Stir at room temperature for 2 - 3 h, then add the zirconium-chromium organic complex. While stirring, slowly heat up to 55 - 65 °C and then keep the temperature for reaction for 2 - 5 h. Then place it in a muffle furnace, heat up to 550 - 650 °C, and then perform heat treatment for 2 - 5 h to obtain modified silica microspheres;

[0053] Among them, the mass fraction of the ethanol solution is 30 - 70%, the weight ratio of tetraethyl orthosilicate, cetyltrimethylammonium bromide to the ethanol solution is 1:0.02:3, the weight ratio of the zirconium-chromium organic complex to tetraethyl orthosilicate is 1:4, and the rate of slow heating is 1 - 3 °C / min.

[0054] Example 2

[0055] A preparation method of a nano-constant temperature heat-insulating and sun-proof door and window, comprising the following steps:

[0056] Step 1, prepare a nano-constant temperature heat-insulating material according to the formula;

[0057] Step 2, install the door and window frame, door and window glass and the sealing strip into a door and window body;

[0058] Step 3, coat the nano-constant temperature heat-insulating material on the surfaces of the door and window glass and the door and window frame of the door and window body to obtain a nano-constant temperature heat-insulating and sun-proof door and window;

[0059] Among them, in Step 1, the nano-constant temperature heat-insulating material is composed of the following components by weight:

[0060] 60 parts of fluorosilicone resin, 10 parts of modified silica microspheres, 20 parts of organic solvent, 3 parts of nano-oxide and 10 parts of additive.

[0061] In Step 2, first install the door and window glass on the door and window frame, then install the sealing strip with an adhesive coated on its surface in the gap between the door and window frame and the door and window glass. After that, continue to use the adhesive to further repair and fill the sealing strip that is not fully adhered to make it completely sealed.

[0062] In Step 3, place the door and window glass and the door and window frame coated with the nano-constant temperature heat insulation material in an environment of 50 - 70 °C for drying treatment to obtain the nano-constant temperature heat insulation and sun protection doors and windows.

[0063] The door and window frame is a metal alloy frame or a plastic frame. Among them, the metal alloy frame is one of an aluminum alloy frame, a magnesium alloy frame, and an aluminum-magnesium alloy frame, and the plastic frame is a U-PVC plastic frame; the material of the door and window glass is high borosilicate transparent glass.

[0064] The material of the sealing strip is one or more combinations of polypropylene, ethylene propylene diene monomer rubber, SBS elastomer, and butyl rubber.

[0065] The solid content of the fluorosilicone resin is 30 - 60%.

[0066] The organic solvent is obtained by mixing methyl ethyl ketoxime and propylene glycol methyl ether acetate in a weight ratio of 1:2.

[0067] The nano-oxide is one or more combinations of nano-titanium dioxide, nano-cerium oxide, and nano-aluminum oxide.

[0068] The auxiliaries include a curing agent, a leveling agent, an antifoaming agent, and a wetting and dispersing agent in a weight ratio of 5:0.2:0.2:1; among them, the curing agent is Desmodur N-3390, the leveling agent is BYK-358N, the antifoaming agent is BYK-088, and the wetting and dispersing agent is BYK-P104.

[0069] The preparation method of the modified silica microspheres is as follows:

[0070] S1. Weigh ammonium zirconium carbonate and add it to deionized water, stir at room temperature until completely dissolved to obtain an ammonium zirconium carbonate solution;

[0071] Among them, the weight ratio of ammonium zirconium carbonate to deionized water is 1:20;

[0072] S2. Weigh chromium nicotinate and add it to deionized water, ultrasonically disperse it until uniform, then place it under ice-water bath conditions, while stirring, dropwise add the ammonium zirconium carbonate solution. After complete dropping, continue to stir and react for 5 - 10 h, filter and collect the solid, wash the collected solid with distilled water 3 - 5 times, and then dry it at 80 - 100 °C to constant weight to obtain the zirconium-chromium organic complex;

[0073] Among them, the weight ratio of chromium nicotinate to deionized water is 1:10; the weight ratio of chromium nicotinate to ammonium zirconium carbonate solution is 1:15;

[0074] S3. Add tetraethyl orthosilicate to an ethanol solution, add cetyltrimethylammonium bromide, stir until uniform, then dropwise add ammonia water until the pH is 8.0 - 9.0, stir at room temperature for 2 - 3 h, add a zirconium-chromium organic complex, slowly heat up to 55 - 65 °C while stirring, then keep the temperature for reaction for 2 - 5 h, place it in a muffle furnace, heat up to 550 - 650 °C, and then perform heat treatment for 2 - 5 h to obtain modified silica microspheres;

[0075] Among them, the mass fraction of the ethanol solution is 30 - 70%, the weight ratio of tetraethyl orthosilicate, cetyltrimethylammonium bromide to the ethanol solution is 1:0.01:2, the weight ratio of the zirconium-chromium organic complex to tetraethyl orthosilicate is 1:3, and the rate of slow heating is 1 - 3 °C / min.

[0076] Example 3

[0077] A preparation method of a nano-constant temperature heat-insulating and sun-proof door and window, comprising the following steps:

[0078] Step 1, prepare a nano-constant temperature heat-insulating material according to the formula;

[0079] Step 2, install a door and window frame, door and window glass and a sealing strip into a door and window body;

[0080] Step 3, coat the nano-constant temperature heat-insulating material on the surfaces of the door and window glass and the door and window frame of the door and window body to obtain a nano-constant temperature heat-insulating and sun-proof door and window;

[0081] Among them, in Step 1, the nano-constant temperature heat-insulating material is composed of the following components according to weight parts:

[0082] 100 parts of fluorosilicone resin, 20 parts of modified silica microspheres, 40 parts of organic solvent, 8 parts of nano-oxide and 20 parts of auxiliary agent.

[0083] In the said Step 2, first install the door and window glass on the door and window frame, then install the sealing strip with an adhesive coated on its surface into the gap between the door and window frame and the door and window glass, and then continue to use the adhesive to further repair and fill the sealing strip that is not fully adhered to make it completely sealed.

[0084] In the said Step 3, place the door and window glass and the door and window frame coated with the nano-constant temperature heat-insulating material in an environment of 50 - 70 °C for drying treatment to obtain a nano-constant temperature heat-insulating and sun-proof door and window.

[0085] The door and window frame is a metal alloy frame or a plastic frame. Among them, the metal alloy frame is one of an aluminum alloy frame, a magnesium alloy frame, and an aluminum-magnesium alloy frame, and the plastic frame is a U-PVC plastic frame; the material of the door and window glass is high borosilicate transparent glass.

[0086] The material of the sealing strip is one or more combinations of polypropylene, ethylene propylene diene monomer rubber, SBS elastomer, and butyl rubber.

[0087] The solid content of the fluorosilicone resin is 30-60%.

[0088] The organic solvent is obtained by mixing methyl ethyl ketoxime and propylene glycol monomethyl ether acetate in a weight ratio of 1:2.

[0089] The nano-oxide is one or more combinations of nano-titanium dioxide, nano-cerium oxide, and nano-aluminum oxide.

[0090] The auxiliaries include a curing agent, a leveling agent, an antifoaming agent, and a wetting and dispersing agent in a weight ratio of 10:0.5:0.5:1; among them, the curing agent is Desmodur N-3390, the leveling agent is BYK-361N, the antifoaming agent is BYK-070, and the wetting and dispersing agent is BYK-P104.

[0091] The preparation method of the modified silica microspheres is as follows:

[0092] S1. Weigh ammonium zirconium carbonate and add it to deionized water, stir at room temperature until completely dissolved to obtain an ammonium zirconium carbonate solution;

[0093] Among them, the weight ratio of ammonium zirconium carbonate to deionized water is 1:30;

[0094] S2. Weigh chromium nicotinate and add it to deionized water, ultrasonically disperse it until uniform, place it under an ice-water bath condition, dropwise add the ammonium zirconium carbonate solution while stirring, after complete dropping, continue to stir and react for 5-10 h, filter and collect the solid, wash the collected solid with distilled water 3-5 times and then dry it at 80-100 °C to constant weight to obtain a zirconium-chromium organic complex;

[0095] Among them, the weight ratio of chromium nicotinate to deionized water is 1:20; the weight ratio of chromium nicotinate to the ammonium zirconium carbonate solution is 1:25;

[0096] S3. Add tetraethyl orthosilicate to an ethanol solution, add cetyltrimethylammonium bromide, stir until uniform, dropwise add ammonia water until the pH is 8.0-9.0, stir at room temperature for 2-3 h, add the zirconium-chromium organic complex, slowly heat up to 55-65 °C while stirring and then keep the temperature for reaction for 2-5 h, place it in a muffle furnace, heat up to 550-650 °C, and then perform heat treatment for 2-5 h to obtain the modified silica microspheres;

[0097] Among them, the mass fraction of the ethanol solution is 30-70%, the weight ratio of tetraethyl orthosilicate, cetyltrimethylammonium bromide to the ethanol solution is 1:0.03:5, the weight ratio of the zirconium-chromium organic complex to tetraethyl orthosilicate is 1:5, and the rate of slow heating is 1-3 °C / min.

[0098] Comparative Example

[0099] A nano-thermostatic insulation material is composed of the following components by weight:

[0100] 80 parts of fluorosilicone resin, 15 parts of silica microspheres, 30 parts of organic solvent, 5 parts of nano-oxide, and 15 parts of auxiliary agent.

[0101] The solid content of the fluorosilicone resin is 30-60%.

[0102] The organic solvent is obtained by mixing methyl ethyl ketoxime and propylene glycol methyl ether acetate in a weight ratio of 1:2.

[0103] The nano-oxide is one or more combinations of nano-titanium dioxide, nano-cerium oxide, and nano-aluminum oxide.

[0104] The auxiliary agent includes a curing agent, a leveling agent, an antifoaming agent, and a wetting and dispersing agent in a weight ratio of 8:0.3:0.4:1; among them, the curing agent is Desmodur N-3390, the leveling agent is BYK-361N, the antifoaming agent is BYK-070, and the wetting and dispersing agent is BYK-P104.

[0105] To illustrate the present invention more clearly, the nano-thermostatic insulation materials prepared in Examples 1-3 of the present invention and the comparative example were coated on high borosilicate transparent glass with a coating thickness of 100 μm ± 2 μm. After drying at 60 °C for 2 h and standing at room temperature for 48 h, performance tests and comparisons were carried out. The light transmittance was detected according to the standard GB / T 2410-2008, the impact resistance was detected according to the standard GB / T 1732-1993, the adhesion was detected according to the standard GB / T 1720-1979, the heat insulation property (solar reflectance ratio, hemispherical emissivity) was detected according to the standard GB / T 25261-2010, and the weather resistance was detected according to the standard GB 1767-79. The results are shown in Table 1:

[0106] Table 1 Performance comparison of different nano-thermostatic insulation materials

[0107]

[0108] As can be seen from Table 1, when the nano-thermostatic insulation materials prepared in Examples 1 to 3 of the present invention are coated on high-borosilicate transparent glass, the appearance of the coating layer is smooth, flat and uniform, and the heat insulation properties (solar reflectivity ratio, hemispherical emissivity) are about 20% higher than those of the comparative example, and the light transmittance is higher than that of the materials in the comparative example, and the weather resistance also has better performance. In addition, excellent performance is also shown in terms of impact resistance and adhesion.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A preparation method of a nano-constant temperature heat-insulating and sun-proof door and window, characterized in that, It includes the following steps: Step 1: Prepare the nano-thermostatic heat-insulating material according to the formula. Step 2: Install the door and window frame, door and window glass, and sealing strip to form the door and window body. Step 3: Coat the nano-thermostatic heat-insulating material on the surfaces of the door and window glass and the door and window frame of the door and window body to obtain the nano-thermostatic heat-insulating and sun-proof door and window. Among them, in Step 1, the nano-thermostatic heat-insulating material is composed of the following components by weight: 60 - 100 parts of fluorosilicone resin, 10 - 20 parts of modified silica microspheres, 20 - 40 parts of organic solvent, 3 - 8 parts of nano-oxide, and 10 - 20 parts of auxiliary agent. The preparation method of the modified silica microspheres is as follows: S1. Weigh ammonium zirconium carbonate and add it to deionized water, stir at room temperature until completely dissolved to obtain an ammonium zirconium carbonate solution. Among them, the weight ratio of ammonium zirconium carbonate to deionized water is 1:20 - 30. S2. Weigh chromium nicotinate and add it to deionized water, ultrasonically disperse it until uniform, then place it under an ice-water bath condition, while stirring, dropwise add the ammonium zirconium carbonate solution. After complete dropping, continue to stir and react for 5 - 10 h, filter and collect the solid. Wash the collected solid with distilled water 3 - 5 times and then dry it at 80 - 100 °C until constant weight to obtain the zirconium-chromium organic complex. Among them, the weight ratio of chromium nicotinate to deionized water is 1:10 - 20; the weight ratio of chromium nicotinate to the ammonium zirconium carbonate solution is 1:15 - 25. S3. Add tetraethyl orthosilicate to the ethanol solution, add cetyltrimethylammonium bromide, stir until uniform, then dropwise add ammonia water until the pH is 8.0 - 9.

0. Stir at room temperature for 2 - 3 h, then add the zirconium-chromium organic complex. While stirring, slowly heat up to 55 - 65 °C and keep the temperature for 2 - 5 h, then place it in a muffle furnace, heat up to 550 - 650 °C, and then perform heat treatment for 2 - 5 h to obtain the modified silica microspheres. Among them, the mass fraction of the ethanol solution is 30 - 70%, the weight ratio of tetraethyl orthosilicate, cetyltrimethylammonium bromide to the ethanol solution is 1:0.01 - 0.03:2 - 5, the weight ratio of the zirconium-chromium organic complex to tetraethyl orthosilicate is 1:3 - 5, and the rate of slow heating is 1 - 3 °C / min.

2. The preparation method of a nano-thermostatic heat-insulating and sun-proof door and window according to claim 1, characterized in that, In Step 2, first install the door and window glass on the door and window frame, then install the sealing strip coated with adhesive in the gap between the door and window frame and the door and window glass. Then continue to use the adhesive to further repair and fill the sealing strip that is not fully adhered to make it completely sealed.

3. The preparation method of a nano-thermostatic heat-insulating and sun-proof door and window according to claim 1, characterized in that, In Step 3, place the door and window glass and the door and window frame coated with the nano-thermostatic heat-insulating material in an environment of 50 - 70 °C for drying treatment to obtain the nano-thermostatic heat-insulating and sun-proof door and window.

4. The preparation method of a nano-thermostatic heat-insulating and sun-proof door and window according to claim 1, characterized in that, The door and window frame is a metal alloy frame or a plastic frame. Among them, the metal alloy frame is one of an aluminum alloy frame, a magnesium alloy frame, and an aluminum-magnesium alloy frame; the plastic frame is a U-PVC plastic frame; the material of the door and window glass is high-borosilicate transparent glass.

5. The preparation method of a nano-thermostatic heat-insulating and sun-proof door and window according to claim 1, characterized in that, The material of the sealing strip is one or a combination of polypropylene, ethylene propylene diene monomer rubber, SBS elastomer, and butyl rubber.

6. The preparation method of a nano-constant temperature heat-insulating and sun-proof door and window according to claim 1, characterized in that, The solid content of the fluorosilicone resin is 30 - 60%.

7. The preparation method of a nano-constant temperature heat-insulating and sun-proof door and window according to claim 1, characterized in that, The organic solvent is obtained by mixing methyl ethyl ketoxime and propylene glycol methyl ether acetate in a weight ratio of 1:

2.

8. The preparation method of a nano-constant temperature heat-insulating and sun-proof door and window according to claim 1, characterized in that, The nano-oxide is one or more compositions of nano-titanium dioxide, nano-cerium oxide, and nano-aluminum oxide.

9. The preparation method of a nano-constant temperature heat-insulating and sun-proof door and window according to claim 1, characterized in that, The additives include a curing agent, a leveling agent, an antifoaming agent, and a wetting and dispersing agent in a weight ratio of 5-10:0.2-0.5:0.2-0.5:1; wherein, the curing agent is Desmodur N-3390, the leveling agent is BYK-361N and / or BYK-358N, the antifoaming agent is BYK-070 and / or BYK-088, and the wetting and dispersing agent is BYK-P104.

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