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Nano transparent thermal insulation coating and preparation method thereof

A heat-insulating coating and transparent technology, applied in the field of materials, can solve the problems of increasing process difficulty and dispersion time, increasing cost, and affecting the transparency of the coating, so as to suppress ultraviolet radiation damage, reduce energy loss, and improve thermal conductivity. The effect of stability

Active Publication Date: 2019-03-19
GUANGZHOU BAIYUN CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN101186781A (a transparent heat-insulating coating and its preparation method) uses several different nano-materials such as silicon dioxide, titanium dioxide, indium tin oxide, fullerene C 60 Mix and ultrasonically disperse 20 to 30 times. Because of its unique properties, the surface area of ​​nanomaterials increases after particle refinement and dispersion, the surface free energy increases accordingly, and the surface activity increases, making it difficult for nanoparticles to disperse and easily aggregate; materials, which will greatly increase the difficulty of the process and the dispersion time
Chinese patent CN1844281A (environmentally friendly, stain-resistant, weather-resistant heat-reflective thermal insulation coating and its preparation method) uses titanium dioxide, spherical closed-cell perlite, lime powder, hollow glass, and several different inorganic fillers for ball milling and dispersion. The dispersion process Simple, but insignificant in terms of thermal insulation performance, it also has a great impact on the transparency of the coating, and at the same time increases the cost

Method used

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  • Nano transparent thermal insulation coating and preparation method thereof
  • Nano transparent thermal insulation coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] In a gymnasium, in order to improve heat insulation performance and reduce power consumption, the nano-transparent heat insulation material of Example 1 of the present invention is used to coat the outer wall with glass.

[0052] Concrete formula is as follows: water-based acrylic resin (solid content 50~55%, viscosity is 1100~1600mPa.s (25 ℃)) 45KG, nano-silica airgel slurry 25KG (serial number 1 formula raw material is mixed, adjust pH value at 7.5, disperse on a disperser at high speed for 15 minutes at a speed of 1200rpm, then grind on a grinder for 2 hours at a speed of 3000rpm to obtain a nano-silica airgel slurry with a powder particle size in the range of 30-90nm.), 1053 dispersant (Dispersant A) 3KG, defoamer DP-08 21.2KG, thickener WT-102 1.4KG, leveling agent DP-495 2KG, dipropylene glycol methyl ether 0.1KG, dipropylene glycol butyl ether 0.1KG, deionized water 25KG .

[0053] The preparation method is:

[0054] Mix the above materials, adjust the pH value...

Embodiment 2

[0057] In a large shopping mall, in order to improve the heat insulation performance and increase the light transmittance at the same time, the second nanometer transparent heat insulation material of the present invention is used to coat the glass for the outer wall.

[0058] Concrete formula is as follows: water-based acrylic resin (solid content 50~55%, viscosity is 1100~1600mPa.s (25 ℃)) 50KG, nano-silica airgel slurry (serial number 2 formula raw materials are mixed, and pH value is adjusted at 7.5 , disperse at a high speed on a disperser for 15 minutes at a speed of 1200 rpm, and then grind on a grinder for 3 hours at a speed of 3000 rpm to obtain a nano-silica airgel slurry with a powder particle size in the range of 30 to 90 nm.) 15KG, 1053 dispersants (Dispersant A) 2KG, defoamer DP-08 20.5KG, thickener WT-102 0.6KG, leveling agent DP-495 1KG, dipropylene glycol methyl ether 0.08KG, dipropylene glycol butyl ether 0.08KG, deionized water 20KG .

[0059] The preparati...

Embodiment 3

[0064] In a certain school, in order to insulate heat in summer and improve the learning environment of students, the nano-transparent heat-insulating material of Embodiment 3 of the present invention is used to coat glass on the exterior wall.

[0065] The specific formula is as follows: water-based acrylic resin (solid content 50-55%, viscosity is 1100-1600mPa.s (25°C)) 50KG, nano-silica airgel slurry (serial number 3 formula raw materials are mixed, and the pH value is adjusted at 8.0 , disperse at a high speed on a disperser for 15 minutes at a speed of 1200 rpm, then grind on a grinder for 2 hours at a speed of 3000 rpm to obtain a nano-silica airgel slurry with a powder particle size in the range of 30 to 90 nm.) 20KG, 1053 dispersants (Dispersant A) 2.5KG, defoamer DP-082 1KG, thickener WT-102 1KG, leveling agent DP-495 1.5KG, dipropylene glycol methyl ether 0.1KG, dipropylene glycol butyl ether 0.1KG, deionized water 23KG.

[0066] The preparation method is:

[0067]...

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Abstract

The invention discloses a nano transparent heat-insulating coating and a preparation method thereof. The nano transparent heat-insulating coating comprises raw materials in parts by weight as follows: 20-25 parts of deionized water, 15-25 parts of nano-silica aerogel slurry, 40-50 parts of water-based acrylic resin, 0.5-1.2 parts of a defoaming agent, 0.6-1.4 parts of a thickening agent, 2-3 parts of a dispersing agent A, 1-2 parts of a leveling agent, 0.05-0.1 parts of dipropylene glycol methyl ether and 0.05-0.1 parts of dipropylene glycol monobutyl ether. The single nano-silica aerogel slurry with excellent performance is added to the nano transparent heat-insulating coating and modified with the optimized dispersing agent, the problems that the nano transparent heat-insulating coating is prone to agglomeration and is difficult to disperse are solved, the ideal nano transparent heat-insulating coating is prepared through optimization of the other raw materials, ratio, processing steps, parameters and the like, the cost is saved, and the construction technology is simplified.

Description

technical field [0001] The invention relates to the field of materials, in particular to a nano transparent heat-insulating coating and a preparation method thereof. Background technique [0002] With the implementation of the newly revised "Energy Conservation Law", energy conservation is a long-term strategic policy for my country's economic development. At present, my country's building energy consumption accounts for about 1 / 3 of the total energy consumption, and the heating energy consumption per unit area of ​​a building is 2-3 times that of developed countries with similar international climate conditions. Therefore, the research and development of new building energy-saving technologies and the popularization and application of new products are effective ways to promote building energy-saving work. [0003] Due to their unique nano-effects, nanomaterials are usually added to traditional coatings to disperse and modify the original coatings to give the coatings excel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D7/62
CPCC08K2201/011C08K2201/014C08L2201/08C08L2201/10C08L2205/035C09D7/62C09D133/00C08L91/00C08L33/02C08L75/04C08K9/06C08K9/08C08K3/36C08K5/06
Inventor 郭迪
Owner GUANGZHOU BAIYUN CHEM IND
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