Heat-insulating and cooling coating for electric power system and preparation method of heat-insulating and cooling coating

Abstract

The invention relates to the field of heat-insulating and cooling coatings and discloses a heat-insulating and cooling coating for an electric power system. The heat-insulating and cooling coating comprises a composite base material, a composite filler, a thickening agent, a flatting agent, a defoaming agent, a dispersing agent, a mildew preventive and water, wherein the composite base material comprises polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin; the composite filler comprises zinc oxide, aerogel, hollow ceramic microbeads, aluminum oxide and titanium dioxide; a composite base material composed of polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin has good cohesiveness, film-forming property and electrical insulating property; the composite filler composed of zinc oxide, aerogel, hollow ceramic microbeads, aluminum oxide and titanium dioxide can effectively improve the reflectivity and heat insulation performance of the coating; in the preparation method of the heat-insulating and cooling coating for the electric power system, a large amount of stirring is used for dispersing phase distribution in the charging process, so that the stability of the overall performance of the coating is facilitated, and the film-forming property, weather resistance and heat-insulating effect of the coating are promoted.

Description

Technical Field

[0001] This invention relates to the field of heat insulation and cooling coatings, specifically a heat insulation and cooling coating for power systems and its preparation method. Background Technology

[0002] A power system is an energy production and consumption system composed of power generation, transformation, transmission, distribution, and consumption. Its function is to convert primary energy from nature into electrical energy through power generation devices, and then supply this electrical energy to various load centers via transmission, transformation, and distribution systems. The power system is a complex energy supply network that delivers electrical energy from power plants to end users through multiple stages including power generation, transmission, distribution, and consumption. The power system is one of the fundamental infrastructures of modern society, widely used in various fields such as industry, agriculture, transportation, and households.

[0003] Thermal insulation and cooling coatings for power systems are specifically designed for the insulation and cooling of power facilities such as substations, switchgear, cables, transformers, energy storage systems, and other heat-generating equipment. Their purpose is to reduce heat accumulation inside the equipment by lowering its surface temperature, thereby improving equipment safety and operational efficiency, and extending its service life.

[0004] However, existing heat insulation and cooling coatings used in power systems lack sufficient heat insulation and cooling properties. Therefore, a heat insulation and cooling coating for power systems and its preparation method are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a heat-insulating and cooling coating for power systems and its preparation method, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A heat insulation and cooling coating for power systems comprises the following raw materials in parts by weight: 30-50 parts of composite base material, 15-35 parts of composite filler, 5-10 parts of thickener, 8-15 parts of leveling agent, 1-5 parts of defoamer, 10-15 parts of dispersant, 7-13 parts of mildew inhibitor and 150-200 parts of water. The composite base materials include polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin; Composite fillers include zinc oxide, aerogel, hollow ceramic microspheres, alumina, and titanium dioxide.

[0007] Composite base materials composed of polyvinyl chloride, fluorocarbon resin, silicate, polyurethane, and epoxy resin have good adhesion, film-forming properties, and electrical insulation. Composite fillers composed of zinc oxide, aerogel, hollow ceramic microspheres, alumina, and titanium dioxide can effectively improve the reflectivity and thermal insulation performance of coatings. Thermal insulation coatings can reduce the internal temperature of buildings and equipment, reduce the load on air conditioning systems, thereby reducing energy consumption and carbon emissions. They also improve comfort by reducing discomfort caused by heat radiation. Furthermore, thermal insulation coatings can reduce structural deformation and aging caused by thermal expansion and contraction, extending service life.

[0008] A further embodiment of the present invention: the composite base material comprises polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin added in a weight ratio of 1-3:3-5:2-4:1-3:1-3.

[0009] A further embodiment of the present invention: the composite base material comprises polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin added in a weight ratio of 2:4:3:2:2.

[0010] A further embodiment of the present invention: the composite filler comprises zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide added in a weight ratio of 2-4:3-5:1-3:1-3:4-6.

[0011] A further embodiment of the present invention: the composite filler comprises zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide added in a weight ratio of 3:4:2:2:5.

[0012] Another object of the present invention is to provide a method for preparing a heat-insulating and cooling coating for power systems, comprising the following steps: Step 1: Prepare the composite base material Polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin are added to trichloroethylene in sequence, and the mixture is stirred at 120 r / min during the process. After all the materials are added, the mixture is stirred at 200 r / min for 20-30 min to obtain the composite matrix. Step 2: Fabrication of composite filler After measuring ethylene glycol ether, zinc oxide is added and stirred at 80 r / min; then alumina and titanium dioxide are added while stirring at 90 r / min; then aerogel and hollow ceramic microspheres are added while stirring at 100 r / min; after all materials are added, the mixture is stirred at 150 r / min for 0.5-1 h to obtain the composite filler. Step 3: After measuring the water, first add the composite base material to the water at a uniform speed and stir at a speed of 300-800 r / min for 10-25 min; then add the composite filler to the water at a uniform speed and stir at a speed of 200-500 r / min for 15-20 min; finally, increase the speed to 300-600 r / min and stir for 5-10 min; to obtain the preliminary coating. Step 4: Add thickener, leveling agent, defoamer, dispersant and mildew inhibitor to the prepared preliminary coating. During this process, stir at a speed of 2000-3000 r / min for 1-2 hours. Step 5: Grind the product obtained in Step 4. After grinding, stir under negative pressure to remove air bubbles.

[0013] A further embodiment of the present invention: the polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin are added to trichloroethylene in sequence, and the mixture is stirred at a speed of 120 r / min during the process; after all materials are added, the mixture is stirred at a speed of 200 r / min for 25 min to obtain the composite base material. After measuring ethylene glycol ether, zinc oxide was added and stirred at 80 r / min; then alumina and titanium dioxide were added while stirring at 90 r / min; then aerogel and hollow ceramic microspheres were added while stirring at 100 r / min; after all materials were added, the mixture was stirred at 150 r / min for 0.8 h to obtain the composite filler.

[0014] A further aspect of the present invention is as follows: In step three, after measuring the water, the composite base material is first added to the water at a uniform speed and stirred at a speed of 500 r / min for 18 min; then the composite filler is added to the water at a uniform speed and stirred at a speed of 300 r / min for 17 min; finally, the speed is increased to 500 r / min and stirred for 7 min; thus, a preliminary coating is obtained.

[0015] A further aspect of the present invention is as follows: In step four, a thickener, leveling agent, defoamer, dispersant, and mildew inhibitor are added to the prepared preliminary coating, and the mixture is stirred at a speed of 2800 r / min for 1.2 h.

[0016] A further aspect of the present invention is as follows: In step five, stirring is performed for 0.5 h under negative pressure to remove air bubbles.

[0017] Compared with the prior art, the present invention has the following advantages: Composite base materials composed of polyvinyl chloride, fluorocarbon resin, silicate, polyurethane, and epoxy resin possess excellent adhesion, film-forming properties, and electrical insulation. Composite fillers composed of zinc oxide, aerogel, hollow ceramic microspheres, alumina, and titanium dioxide can effectively improve the reflectivity and thermal insulation performance of coatings. Thermal insulation coatings can reduce the internal temperature of buildings and equipment, lower the load on air conditioning systems, thereby reducing energy consumption and carbon emissions; improve comfort by reducing discomfort caused by heat radiation; and reduce structural deformation and aging caused by thermal expansion and contraction, extending service life. In the preparation method of heat insulation and cooling coatings for power systems, stirring is used extensively to disperse the phase distribution during the feeding process, which is beneficial to the stability of the overall performance of the coating and promotes the film-forming properties, weather resistance and heat insulation effect of the coating. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example 1

[0019] A heat insulation and cooling coating for power systems comprises the following raw materials in parts by weight: 30 parts composite base material, 15 parts composite filler, 5 parts thickener, 8 parts leveling agent, 1 part defoamer, 10 parts dispersant, 7 parts mildew inhibitor and 150 parts water. The composite base materials include polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin; Composite fillers include zinc oxide, aerogel, hollow ceramic microspheres, alumina, and titanium dioxide. Example 2

[0020] A heat insulation and cooling coating for power systems comprises the following raw materials in parts by weight: 50 parts of composite base material, 35 parts of composite filler, 10 parts of thickener, 15 parts of leveling agent, 5 parts of defoamer, 15 parts of dispersant, 13 parts of mildew inhibitor and 200 parts of water. The composite matrix includes polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin; the composite filler includes zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide. Example 3

[0021] This embodiment adds the following to Embodiment 1: The composite base material comprises polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin added in a weight ratio of 1:3:2:1:1. Example 4

[0022] This embodiment adds the following to Embodiment 1: The composite base material comprises polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin added in a weight ratio of 3:5:4:3:3. Example 5

[0023] This embodiment adds the following to Embodiment 1: The composite base material comprises polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin added in a weight ratio of 2:4:3:2:2. Example 6

[0024] This embodiment adds the following to Embodiment 1: The composite filler comprises zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide added in a weight ratio of 2:3:1:1:4. Example 7

[0025] This embodiment adds the following to Embodiment 1: The composite filler comprises zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide added in a weight ratio of 4:5:3:3:6. Example 8

[0026] This embodiment adds the following to Embodiment 1: The composite filler comprises zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide added in a weight ratio of 3:4:2:2:5. Example 9

[0027] A heat insulation and cooling coating for power systems comprises the following raw materials in parts by weight: 40 parts of composite base material, 27 parts of composite filler, 8 parts of thickener, 11 parts of leveling agent, 2 parts of defoamer, 12 parts of dispersant, 9 parts of mildew inhibitor and 180 parts of water. The composite base material includes polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin added in a weight ratio of 2:4:3:2:2; the composite filler includes zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide added in a weight ratio of 3:4:2:2:5. Example 10

[0028] This invention provides a method for preparing a heat-insulating and cooling coating for power systems, comprising the following steps: Step 1: Prepare the composite base material Polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin were added to trichloroethylene in sequence, and the mixture was stirred at 120 r / min during the process. After all the materials were added, the mixture was stirred at 200 r / min for 20 min to obtain the composite matrix. Step 2: Fabrication of composite filler After measuring ethylene glycol ether, zinc oxide was added and stirred at 80 r / min; then alumina and titanium dioxide were added while stirring at 90 r / min; then aerogel and hollow ceramic microspheres were added while stirring at 100 r / min; after all materials were added, the mixture was stirred at 150 r / min for 0.5 h to obtain the composite filler. Step 3: After measuring the water, first add the composite base material to the water at a uniform speed and stir at 300 r / min for 10 min; then add the composite filler to the water at a uniform speed and stir at 200 r / min for 15 min; finally, increase the speed to 300 r / min and stir for 5 min; to obtain the preliminary coating. Step 4: Add thickener, leveling agent, defoamer, dispersant and mildew inhibitor to the prepared preliminary coating. During this process, stir at 2000 r / min for 1 h. Step 5: Grind the product obtained in Step 4. After grinding, stir under negative pressure to remove air bubbles. Example 11

[0029] This invention provides a method for preparing a heat-insulating and cooling coating for power systems, comprising the following steps: Step 1: Prepare the composite base material Polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin were added to trichloroethylene in sequence, and the mixture was stirred at 120 r / min during the process. After all the materials were added, the mixture was stirred at 200 r / min for 30 min to obtain the composite matrix. Step 2: Fabrication of composite filler After measuring ethylene glycol ether, zinc oxide was added and stirred at 80 r / min; then alumina and titanium dioxide were added while stirring at 90 r / min; then aerogel and hollow ceramic microspheres were added while stirring at 100 r / min; after all materials were added, the mixture was stirred at 150 r / min for 1 h to obtain the composite filler. Step 3: After measuring the water, first add the composite base material to the water at a uniform speed and stir at 800 r / min for 25 min; then add the composite filler to the water at a uniform speed and stir at 500 r / min for 20 min; finally, increase the speed to 600 r / min and stir for 10 min; to obtain the preliminary coating. Step 4: Add thickener, leveling agent, defoamer, dispersant and mildew inhibitor to the prepared preliminary coating. During this process, stir at 3000 r / min for 2 h. Step 5: Grind the product obtained in Step 4. After grinding, stir under negative pressure to remove air bubbles. Example 12

[0030] The only difference between this embodiment and embodiment 11 is that: The polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin were added to trichloroethylene in sequence, and the mixture was stirred at 120 r / min during the process. After all the materials were added, the mixture was stirred at 200 r / min for 25 min to obtain the composite matrix. Example 13

[0031] The only difference between this embodiment and embodiment 11 is that: After measuring ethylene glycol ether, zinc oxide was added and stirred at 80 r / min; then alumina and titanium dioxide were added while stirring at 90 r / min; then aerogel and hollow ceramic microspheres were added while stirring at 100 r / min; after all materials were added, the mixture was stirred at 150 r / min for 0.8 h to obtain the composite filler. Example 14

[0032] The only difference between this embodiment and embodiment 11 is that: In step three, after measuring the water, the composite base material is first added to the water at a uniform speed and stirred at 500 r / min for 18 min; then the composite filler is added to the water at a uniform speed and stirred at 300 r / min for 17 min; finally, the speed is increased to 500 r / min and stirred for 7 min to obtain the preliminary coating. Example 15

[0033] The only difference between this embodiment and embodiment 11 is that: In step four, thickener, leveling agent, defoamer, dispersant and mildew inhibitor are added to the prepared preliminary coating. During this process, the mixture is stirred at a speed of 2800 r / min for 1.2 h. Example 16

[0034] This embodiment adds the following to Embodiment 1: In step five, the mixture is stirred for 0.5 h under negative pressure to remove air bubbles. Example 17

[0035] This invention provides a method for preparing a heat-insulating and cooling coating for power systems, comprising the following steps: Step 1: Prepare the composite base material Polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin were added to trichloroethylene in sequence, and the mixture was stirred at 120 r / min during the process. After all the materials were added, the mixture was stirred at 200 r / min for 25 min to obtain the composite matrix. Step 2: Fabrication of composite filler After measuring ethylene glycol ether, zinc oxide was added and stirred at 80 r / min; then alumina and titanium dioxide were added while stirring at 90 r / min; then aerogel and hollow ceramic microspheres were added while stirring at 100 r / min; after all materials were added, the mixture was stirred at 150 r / min for 0.8 h to obtain the composite filler. Step 3: After measuring the water, first add the composite base material to the water at a uniform speed and stir at 500 r / min for 18 min; then add the composite filler to the water at a uniform speed and stir at 300 r / min for 17 min; finally, increase the speed to 500 r / min and stir for 7 min; to obtain the preliminary coating. Step 4: Add thickener, leveling agent, defoamer, dispersant and mildew inhibitor to the prepared preliminary coating. During this process, stir at 2800 r / min for 1.2 h. Step 5: Grind the product obtained in Step 4. After grinding, stir under negative pressure for 0.5 h to remove air bubbles.

[0036] Compared with existing technologies, this invention has the following advantages: the composite base material composed of polyvinyl chloride, fluorocarbon resin, silicate, polyurethane, and epoxy resin has good adhesion, film-forming properties, and electrical insulation; the composite filler composed of zinc oxide, aerogel, hollow ceramic microspheres, alumina, and titanium dioxide can effectively improve the reflectivity and thermal insulation performance of the coating; the thermal insulation coating can reduce the internal temperature of buildings and equipment, reduce the load on air conditioning systems, thereby reducing energy consumption and carbon emissions; improve comfort by reducing discomfort caused by heat radiation; the thermal insulation coating can reduce structural deformation and aging caused by thermal expansion and contraction, and extend service life; in the preparation method of thermal insulation and cooling coatings for power systems, the extensive use of stirring to disperse the phase distribution during the feeding process is beneficial to the stability of the overall performance of the coating and promotes the film-forming properties, weather resistance, and thermal insulation effect of the coating.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat-insulating and cooling coating for power systems, characterized in that, It includes the following raw materials in parts by weight: 30-50 parts of composite base material, 15-35 parts of composite filler, 5-10 parts of thickener, 8-15 parts of leveling agent, 1-5 parts of defoamer, 10-15 parts of dispersant, 7-13 parts of mildew inhibitor and 150-200 parts of water; The composite base materials include polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin; Composite fillers include zinc oxide, aerogel, hollow ceramic microspheres, alumina, and titanium dioxide.

2. The heat-insulating and cooling coating for power systems according to claim 1, characterized in that, The composite base material comprises polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin added in a weight ratio of 1-3:3-5:2-4:1-3:1-3.

3. The heat insulation and cooling coating for power systems according to claim 2, characterized in that, The composite base material comprises polyvinyl chloride, fluorocarbon resin, silicate, polyurethane and epoxy resin added in a weight ratio of 2:4:3:2:

2.

4. The heat-insulating and cooling coating for power systems according to claim 1, characterized in that, The composite filler comprises zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide added in a weight ratio of 2-4:3-5:1-3:1-3:4-6.

5. The heat-insulating and cooling coating for power systems according to claim 4, characterized in that, The composite filler comprises zinc oxide, aerogel, hollow ceramic microspheres, alumina and titanium dioxide added in a weight ratio of 3:4:2:2:

5.

6. A method for preparing a heat-insulating and cooling coating for power systems according to any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Prepare the composite base material Polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin are added to trichloroethylene in sequence, and the mixture is stirred at 120 r / min during the process. After all the materials are added, the mixture is stirred at 200 r / min for 20-30 min to obtain the composite matrix. Step 2: Fabrication of composite filler After measuring ethylene glycol ether, zinc oxide is added and stirred at 80 r / min; then alumina and titanium dioxide are added while stirring at 90 r / min; then aerogel and hollow ceramic microspheres are added while stirring at 100 r / min; after all materials are added, the mixture is stirred at 150 r / min for 0.5-1 h to obtain the composite filler. Step 3: After measuring the water, first add the composite base material to the water at a uniform speed and stir at a speed of 300-800 r / min for 10-25 min; then add the composite filler to the water at a uniform speed and stir at a speed of 200-500 r / min for 15-20 min; finally, increase the speed to 300-600 r / min and stir for 5-10 min; to obtain the preliminary coating. Step 4: Add thickener, leveling agent, defoamer, dispersant and mildew inhibitor to the prepared preliminary coating. During this process, stir at a speed of 2000-3000 r / min for 1-2 hours. Step 5: Grind the product obtained in Step 4. After grinding, stir under negative pressure to remove air bubbles.

7. The method for preparing a heat-insulating and cooling coating for power systems according to claim 6, characterized in that, The polyvinyl chloride, acrylic resin, silicate, polyurethane and epoxy resin are added to trichloroethylene in sequence, and the mixture is stirred at 120 r / min during the process. After all the materials are added, the mixture is stirred at 200 r / min for 25 min to obtain the composite matrix. After measuring ethylene glycol ether, zinc oxide was added and stirred at 80 r / min; then alumina and titanium dioxide were added while stirring at 90 r / min; then aerogel and hollow ceramic microspheres were added while stirring at 100 r / min; after all materials were added, the mixture was stirred at 150 r / min for 0.8 h to obtain the composite filler.

8. The method for preparing a heat-insulating and cooling coating for power systems according to claim 6, characterized in that, In step three, after measuring the water, the composite base material is first added to the water at a uniform speed and stirred at 500 r / min for 18 min; then the composite filler is added to the water at a uniform speed and stirred at 300 r / min for 17 min; finally, the speed is increased to 500 r / min and stirred for 7 min; thus, a preliminary coating is obtained.

9. The method for preparing a heat-insulating and cooling coating for power systems according to claim 6, characterized in that, In step four, thickener, leveling agent, defoamer, dispersant and mildew inhibitor are added to the prepared preliminary coating. During this process, the mixture is stirred at a speed of 2800 r / min for 1.2 h.

10. A method for preparing a heat-insulating and cooling coating for power systems according to claim 6, characterized in that, In step five, the mixture is stirred for 0.5 h under negative pressure to remove air bubbles.