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Water-based chemical-medium-resistant weather-resistant visible-light near-infrared camouflage coating and preparation method thereof

A technology of chemical resistance and weather resistance, which is applied in the field of visible light and near-infrared camouflage coatings and its preparation, can solve the problems of severe corrosion, reduced camouflage performance, loss of strength, etc., and achieve the effect of convenient painting and excellent weather resistance

Inactive Publication Date: 2020-12-29
ANHUI JINDUN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, when the camouflage paint is exposed to heavy salt spray, severe corrosion, and strong ultraviolet light, due to long-term exposure to ultraviolet light, most of the molecular bonds of the resin in the camouflage paint are broken, and the resin degrades and loses strength. , along with the degradation of the pigment molecules in it, the camouflage performance is reduced or even lost the original camouflage performance

Method used

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  • Water-based chemical-medium-resistant weather-resistant visible-light near-infrared camouflage coating and preparation method thereof
  • Water-based chemical-medium-resistant weather-resistant visible-light near-infrared camouflage coating and preparation method thereof
  • Water-based chemical-medium-resistant weather-resistant visible-light near-infrared camouflage coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Concrete raw material is weighed by table 1, and step preparation step is as follows:

[0025] (1) Add water-based acrylic resin, water-based epoxy resin, JX-628 blocked water-based polyisocyanate curing agent, dispersant, defoamer, leveling agent, and 2 / 3 of water into the container, and use a high-speed disperser at 500rpm Disperse at a speed of 10 minutes, maintain the speed, slowly add pigments, metal fillers, potassium titanate whiskers, and the remaining water, increase the speed to 1800 rpm, and disperse for 30 minutes;

[0026] (2) Grind the dispersed materials with a horizontal sand mill, the material of the grinding medium is zirconium beads, the diameter of the zirconium beads is 0.8-1.0 mm, until the fineness of the coating is ground to ≤20 μm;

[0027] (3) Use a high-speed disperser to disperse the functional filler into the ground material at a speed of 500 rpm, increase the speed to 1500 rpm, and disperse for 10 minutes to obtain the product.

Embodiment 2

[0029] (1) Add water-based acrylic resin, water-based epoxy resin, JX-628 blocked water-based polyisocyanate curing agent, dispersant, defoamer, leveling agent, and 2 / 3 of water into the container, and use a high-speed disperser at 500rpm Disperse at a speed of 10 minutes, maintain the speed, slowly add pigments, metal fillers, potassium titanate whiskers, and the remaining water, increase the speed to 1800 rpm, and disperse for 30 minutes;

[0030] (2) Grind the dispersed materials with a horizontal sand mill, the material of the grinding medium is zirconium beads, the diameter of the zirconium beads is 0.8-1.0 mm, until the fineness of the coating is ground to ≤20 μm;

[0031] (3) Use a high-speed disperser to disperse the functional filler into the ground material at a speed of 500 rpm, increase the speed to 1500 rpm, and disperse for 10 minutes to obtain the product.

Embodiment 3

[0033] (1) Add water-based acrylic resin, water-based epoxy resin, JX-628 blocked water-based polyisocyanate curing agent, dispersant, defoamer, leveling agent, and 2 / 3 of water into the container, and use a high-speed disperser at 400rpm Disperse at a speed of 20 minutes, maintain the speed, slowly add pigments, metal fillers, potassium titanate whiskers, and the remaining water, increase the speed to 1600 rpm, and disperse for 40 minutes;

[0034] (2) Grind the dispersed materials with a horizontal sand mill, the material of the grinding medium is zirconium beads, the diameter of the zirconium beads is 0.8-1.0 mm, until the fineness of the coating is ground to ≤20 μm;

[0035] (3) Use a high-speed disperser to disperse the functional filler into the ground material at a speed of 400 rpm, increase the speed to 1400 rpm, and disperse for 20 minutes to obtain the product.

[0036] Table 1

[0037]

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Abstract

The invention relates to the technical field of camouflage coatings, in particular to a water-based chemical-medium-resistant weather-resistant visible light near-infrared camouflage coating and a preparation method thereof. The camouflage coating is prepared from water-based resin, a polyisocyanate curing agent, functional filler, water, a dispersing agent, an antifoaming agent, a leveling agent,pigment, potassium titanate whiskers and metal filler. The camouflage coating disclosed by the invention has relatively high absorptivity (greater than 90%) in a wave band range of 680-1180 nm, whichindicates that the camouflage coating can effectively absorb visible light and near-infrared light, so that a camouflage effect is achieved; meanwhile, the camouflage coating disclosed by the invention has relatively good properties in the aspects of acid and alkali resistance, salt fog resistance, aging resistance and mold resistance, and shows excellent weather resistance. Water-based componentraw materials are adopted, brushing is convenient, and the camouflage paint is suitable for camouflage of various buildings and carriers.

Description

technical field [0001] The invention relates to the technical field of camouflage coatings, in particular to a water-based chemical-medium-resistant and weather-resistant visible-near-infrared camouflage coating and a preparation method thereof. Background technique [0002] Camouflage coatings are used on the surface of military facilities and instruments to make people unable to identify the coatings with camouflage colors. It can disguise itself to confuse the enemy under the reconnaissance conditions such as visible light, infrared light, ultraviolet light and radar wave. It mainly achieves camouflage through the selection of pigments and their different combinations. Camouflage coatings are mostly used for military purposes, such as tanks, tanks, artillery, radar, etc., must have good adhesion, wear resistance, weather resistance, cold resistance and good water resistance, corrosion resistance to coal, gasoline and other media Wait. [0003] The camouflage coatings c...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D5/30C09D5/32C09D5/08C09D5/14C09D5/38C09D7/61
CPCC08K2003/0812C08K2003/0843C08L2201/08C08L2205/03C09D5/08C09D5/14C09D5/30C09D5/32C09D5/38C09D175/04C09D7/61C09D7/70C08K7/08C08K3/08C08K13/04
Inventor 袁立新糜子文黄海波郭宝
Owner ANHUI JINDUN PAINT
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