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Preparation method of green pigment capable of reflecting infrared rays, and thermal insulation paint

A green pigment, infrared technology, applied in the direction of reflection/signal paint, polyester paint, coating, etc., to achieve the effect of good infrared reflection performance and good performance

Inactive Publication Date: 2018-01-05
天津市东塔涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method used to prepare these infrared reflective pigments is mainly to grind and mix the raw materials before calcining, and the method of dissolving the raw materials in water, compound coprecipitation under ultrasonic conditions, grinding and firing to prepare pigments with better infrared reflective ability has not yet been seen. to report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Weigh the raw materials of the following components in parts by weight: 100 parts of titanium dioxide and 45 parts of molybdenum trioxide, put them into a ball mill and mix and grind them evenly to obtain a composite doping component;

[0015] (2) Weigh the raw materials of the following components in parts by weight: 100 parts of chromium trichloride hexahydrate, 15 parts of aluminum sulfate octadecahydrate, 2.5 parts of composite doping components, 350 parts of water, put into a container and mix and stir Evenly, chromium trichloride hexahydrate and aluminum sulfate octadecahydrate are dissolved in water to obtain a composite suspension system;

[0016] (3) Under the action of ultrasonic vibration and stirring dispersion, ammonia water is added dropwise to the composite suspension system, so that the chromium ions and aluminum ions in the composite suspension system form mixed colloidal precipitation of chromium hydroxide, aluminum hydroxide and composite doping co...

Embodiment 2

[0019] Each step is the same as embodiment 1, but process parameter is different:

[0020] The molybdenum trioxide in the composite doping component is 40 parts; the aluminum sulfate octadecahydrate in the composite suspension system is 10 parts, the composite doping component is 2 parts, and the water is 300 parts; the composite precipitate is fired at 1000°C for 2 hours .

Embodiment 3

[0022] Each step is the same as embodiment 1, but process parameter is different:

[0023] The molybdenum trioxide in the composite doping component is 50 parts; the aluminum sulfate octadecahydrate in the composite suspension system is 20 parts, the composite doping component is 3 parts, and the water is 400 parts; the composite precipitate is fired at 1050°C for 3 hours .

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Abstract

The invention discloses a preparation method of a green pigment capable of reflecting infrared rays and a heat-insulating paint. Dissolve hexahydrate chromium trichloride and octadecahydrate aluminum sulfate in water, mix them with titanium dioxide and molybdenum trioxide, and then add ammonia water dropwise , under the ultrasonic wave and stirring dispersion, a mixed colloid co-precipitation containing composite doping components is generated; after the precipitate is ground, it is fired at 1000-1050°C for 2-3 hours, and after it is cooled, it is put into a ball mill. It is ground into a powder. The invention makes the prepared green pigment have good infrared reflection performance, and can be used to add the green pigment to the paint to make heat-insulating paint products.

Description

technical field [0001] The invention relates to a preparation method of a pigment capable of reflecting infrared rays and a heat-insulating paint. Background technique [0002] Green-coated tanks, military facility shells, car shells, etc. have better concealment in the jungle, but the green coating will absorb heat in the sun, especially in summer, which will easily increase the temperature inside the car and indoor And cause discomfort to the people, also be unfavorable for the preservation and conveying of articles etc. Using the green pigment with the function of reflecting infrared radiation, adding it to coatings, plastic sheets and other products can prepare products with heat insulation function. It is applied to the coating of automobiles, building roofs, storage tanks, tanks, military facilities, etc., as well as explosion-proof membranes, heat shields, etc., to reflect infrared radiation in sunlight (the main conductor of solar heat) radiation. In summer, the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D5/33
Inventor 王庆华
Owner 天津市东塔涂料有限公司
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