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Aluminum powder treatment process for preparing high-gloss aluminum paste

A processing technology, technology of aluminum silver paste, applied in inorganic pigment processing, pigment paste, metal processing equipment, etc., can solve the problem of the reduction of the light reflection coefficient of aluminum silver paste, the decline of the light reflection ability of aluminum silver paste, and the light reflection of aluminum silver paste. Ability to affect and other issues, to achieve the effect of not reducing gloss, reducing diffuse reflection, and improving gloss

Inactive Publication Date: 2020-04-14
枞阳县新天地高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silicon film wrapped on the surface will affect the light reflection ability of the aluminum silver paste, which will reduce the light reflection coefficient of the aluminum silver paste, resulting in a decrease in the light reflection ability of the aluminum silver paste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An aluminum powder treatment process for preparing high-gloss aluminum-silver paste, the specific preparation method is as follows:

[0016] 1) Put the Y-shaped alumina into the muffle furnace, bake it at 600°C for 5 hours, cool it down to 230°C with the furnace, and then move it to the desiccator to cool to room temperature to obtain pretreated alumina for later use. Add platinum and zirconium respectively into aqua regia, and heated to 50°C on an electric furnace to make it dissolve rapidly, evaporate the dissolved solution to dryness and cool, then add dilute hydrochloric acid with a concentration of 0.1mol / L and heat to dissolve, and prepare a solution with a concentration of 0.04g / ml Metal platinum solution and concentration are the metal zirconium solution of 0.02g / ml, standby;

[0017] 2) Mix metal platinum solution and metal zirconium solution with a volume ratio of 1:1 evenly, then add 1% zirconia of the total weight of the impregnating liquid, stir evenly to o...

Embodiment 2

[0022] An aluminum powder treatment process for preparing high-gloss aluminum-silver paste, the specific preparation method is as follows:

[0023] 1) Put the Y-shaped alumina in a muffle furnace, bake it at 700°C for 4.5h, cool it down to 250°C with the furnace, and then move it to a desiccator to cool to room temperature to obtain pretreated alumina for use. Platinum and zirconium were separated Add it to aqua regia, and heat it to 55°C on an electric furnace to make it dissolve quickly. Evaporate the dissolved solution to dryness and cool it down, then add dilute hydrochloric acid with a concentration of 0.15mol / L and heat to dissolve, and prepare a concentration of 0.05g / ml Platinum metal solution and zirconium metal solution with a concentration of 0.025g / ml for subsequent use;

[0024] 2) Mix metal platinum solution and metal zirconium solution with a volume ratio of 1:1 evenly, then add 2% zirconia of the total weight of the impregnating liquid, stir evenly to obtain th...

Embodiment 3

[0029] An aluminum powder treatment process for preparing high-gloss aluminum-silver paste, the specific preparation method is as follows:

[0030] 1) Put the Y-shaped alumina into the muffle furnace, bake it at 800°C for 4 hours, cool it down to 280°C with the furnace, and then move it to the desiccator to cool to room temperature to obtain pretreated alumina for later use. Add platinum and zirconium respectively into aqua regia, and heated to 60°C on an electric furnace to dissolve rapidly, evaporate the dissolved solution to dryness and cool, then add dilute hydrochloric acid with a concentration of 0.2mol / L and heat to dissolve, and prepare a solution with a concentration of 0.06g / ml Metal platinum solution and concentration are the metal zirconium solution of 0.03g / ml, standby;

[0031] 2) Mix metal platinum solution and metal zirconium solution with a volume ratio of 1:1 evenly, then add 3% zirconia of the total weight of the impregnating liquid, stir well to obtain the ...

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Abstract

The invention discloses an aluminum powder treatment process for preparing high-gloss aluminum paste, and relates to the technical field of coatings, and the aluminum powder treatment process comprises the following specific steps: 1) roasting aluminum oxide to obtain pretreated aluminum oxide, and preparing a metal platinum solution and a metal zirconium solution for later use; 2) impregnating the pretreated aluminum oxide with the prepared impregnation liquid, filtering out the aluminum oxide, drying, roasting and carrying out thermal reduction to obtain a platinum-zirconium / aluminum oxide compound; 3) adding the platinum-zirconium / aluminum oxide compound into a dispersion liquid containing titanium powder and aluminum powder, oscillating and dispersing, standing, and drying for later use; and 4) roasting the product for later use, cooling, immersing into a hydrochloric acid solution, washing and drying. A compact and ultrathin Ti-Al intermetallic compound layer is formed on the surface of the aluminum powder, the generation speed of aluminum oxide can be reduced, oxidation of aluminum can be slowed down, meanwhile, diffuse reflection can be reduced through the intermetallic compound layer of the compact structure, the glossiness of aluminum paste can be improved, and it is achieved that the glossiness of the aluminum paste is not reduced after the aluminum paste is used fora long time.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an aluminum powder treatment process for preparing high-gloss aluminum-silver paste. Background technique [0002] Aluminum silver paste is a metal pigment with special processing technology and surface treatment, and it is one of the most widely used metal effect pigments. The main component of aluminum silver paste is flake aluminum powder. Because the surface of flake aluminum powder is smooth and flat, it has excellent light reflection ability and metallic luster, can reflect visible light, ultraviolet light and infrared light, and has obvious angle-dependent heterochromatic effect It is widely used in many fields such as coatings, chemicals, automobiles, plastics, ink printing, etc., especially the aluminum-silver paste can meet the special requirements of the coating chemical industry, which greatly accelerates the development of aluminum-silver paste in terms ...

Claims

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Application Information

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IPC IPC(8): C09D17/00C09C1/64C09C3/06B22F1/02
CPCC09D17/006C09C1/642C09C3/063B22F1/17
Inventor 周艺桃
Owner 枞阳县新天地高新材料有限公司