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Low-temperature self-drying low-VOC (volatile organic compound) camouflage functional heat-insulating and cooling coating as well as preparation

A technology of heat insulation, cooling and self-drying, applied in camouflage coatings, epoxy resin coatings, reflective/signal coatings, etc., can solve the problems of affecting efficiency, low heat insulation efficiency, excessive organic volatiles, etc., and achieve good heat insulation. The effect of cooling effect

Active Publication Date: 2022-05-17
QINGDAO JINGUANGHONG INTELLIGENT MACHINERY ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the commonly used water-based and solvent-based heat-insulating and cooling coatings have their own obvious defects.
Water-based thermal insulation and cooling coatings are mostly used for thermal insulation and cooling of buildings, but under the conditions of low temperature and high air humidity, the moisture in water-based coatings is difficult to volatilize, and water-based coatings are not suitable for autumn and winter in the north.
[0005] The heat insulation efficiency of solvent-based coatings is not high, and the heat insulation effect can only be satisfied with a large thickness, and it is difficult to dry under low temperature conditions, which affects the efficiency
Moreover, the released organic volatiles in solvent-based coatings exceed the standard
[0006] Coatings for military equipment do not have good camouflage and stealth effects of visible light or near-infrared light, which reduces the survivability of military equipment

Method used

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  • Low-temperature self-drying low-VOC (volatile organic compound) camouflage functional heat-insulating and cooling coating as well as preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The first step: Silicone modified epoxy resin, some high-purity xylene, propylene glycol methyl ether, and n-butanol solvents are dispersed for 15-30 minutes at a speed of 500RPM-800RPM; silicone modified epoxy resin is silicone Organosilicon-modified bisphenol-A epoxy resin with a content of 15% and a molecular weight of 2500;

[0042] Step 2: After the first step of dispersion, increase the speed to 1000RPM-1500RPM and add polyether modified silicone leveling agent, polydimethylsilicon defoamer and titanium dioxide while dispersing, disperse at high speed for 30-60min, and test Fineness<20 microns;

[0043] Step 3: Reduce the dispersion speed to 300RPM-500RPM, add airgel particle size 10um, void diameter 20nm; and hollow glass microspheres particle size 60-70um, disperse for 30-45min, then Add the drier and the remaining part of the solvent while dispersing, and disperse for 30-45 minutes, filter and pack with a 70-mesh filter, and it is component A of the heat-insul...

Embodiment 2

[0048] The first step: Silicone modified epoxy resin, part of trimethylbenzene, isopropanol, propylene glycol methyl ether acetate at the speed of 500RPM-800RPM, disperse for 15-30min; silicone modified epoxy resin is the silicone content 20% silicone-modified bisphenol-A epoxy resin with a molecular weight of 3500;

[0049] Step 2: After the first step of dispersion, increase the speed to 1000RPM-1500RPM and add polyether modified silicone leveling agent, polydimethylsilicon defoamer and titanium dioxide while dispersing, disperse at high speed for 30-60min, and test Fineness<20 microns;

[0050] Step 3: Reduce the dispersion speed to 300RPM-500RPM, add hollow glass microspheres with airgel particle size of 10um, void diameter of 40nm and particle size of 80-100 microns while dispersing, disperse for 30-45min, and then disperse While adding the drier and the remaining part of the solvent, disperse for 30-45 minutes, filter the package with a 70-mesh filter, and use it as com...

Embodiment 3

[0055] The first step: silicone modified epoxy resin, part of xylene, trimethylbenzene, propylene glycol methyl ether at a speed of 500RPM-800RPM, disperse for 15-30min; silicone modified epoxy resin is silicone content of 30% , a silicone-modified bisphenol F epoxy resin with a molecular weight of 5000;

[0056] Step 2: After the first step of dispersing, increase the speed to 1000RPM-1500RPM and add polyester modified silicone leveling agent, polydimethylsilicon defoamer and titanium dioxide while dispersing, disperse at high speed for 30-60min, and test Fineness<20 microns;

[0057] Step 3: Reduce the dispersing speed to 300RPM-500RPM, add hollow ceramic microspheres with airgel particle size of 20um, void diameter of 50nm and particle size of 100-120 microns while dispersing, disperse for 30-45min, and then disperse While adding the drier and the remaining part of the solvent, disperse for 30-45 minutes, filter the package with a 70-mesh filter, and use it as component A ...

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Abstract

The invention relates to a low-temperature self-drying low-VOC (volatile organic compound) camouflage functional heat-insulating and cooling coating as well as a preparation method and application thereof. Comprising a component A and a component B. The component A comprises the following raw materials in parts by weight: 25-35 parts of silicon modified epoxy resin, 0.5-2 parts of aerogel, 7-15 parts of titanium dioxide, 25-35 parts of hollow microspheres, 0.5-2.0 parts of a leveling agent, 0.5-2.0 parts of a defoaming agent, 1.0-2.0 parts of a drier and 20-25 parts of a high-purity solvent. The component B comprises the following components in parts by weight: 60-70 parts of silicon modified amine cross-linked resin and 30-40 parts of a high-purity solvent; the mass ratio of the component A to the component B is (2.5: 1)-(4: 1). The coating is completely dried within 7 days at the temperature not lower than-10 DEG C, the construction VOC is smaller than 420 g / L, and the coating has good heat insulation and cooling effects under the condition of low film thickness. The coating is matched with camouflage finish paint, so that the camouflage function of visible light and near infrared rays on military equipment is met.

Description

technical field [0001] The invention belongs to the technical field of architectural or equipment coatings, and in particular relates to a low-temperature self-drying low-VOC camouflage functional heat-insulating and cooling coating, a preparation method and an application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Heat-insulating and cooling coatings are mainly divided into two types: water-based systems and solvent-based systems, which are widely used in heat-insulating and cooling scenarios, especially for various buildings, factories, storage tanks, and outdoor equipment. It is one of the most important ways to reduce the internal and external temperature of obj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/30C09D5/33C09D7/61C08G59/50
CPCC09D163/00C09D5/30C09D5/004C09D7/61C09D7/69C09D7/70C08G59/504C08K2201/005C08K2003/2241C08K9/02C08K3/22C08K7/28C08K7/26C08K7/24
Inventor 来刚杨德要陈巍雷焕虎朱洪江周元琛
Owner QINGDAO JINGUANGHONG INTELLIGENT MACHINERY ELECTRONICS CO LTD
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