Modified aluminum pigment and preparation method thereof

A technology of aluminum pigment modification, applied in the direction of inorganic pigment treatment, chemical instruments and methods, fibrous fillers, etc., to achieve the effects of excellent storage stability, excellent anti-silver performance, and excellent corrosion resistance

Active Publication Date: 2016-07-06
长沙族兴新材料股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the storage stability and corrosion resistance of the aluminum pigment thus obtained need to be further improved.

Method used

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  • Modified aluminum pigment and preparation method thereof

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preparation example Construction

[0029] The present invention also provides a method for preparing the above-mentioned modified aluminum pigment, comprising the following steps,

[0030] Step A, preparation of the composition: graphene oxide and fatty acid were stirred and reacted at 80-90° C. for more than 5 hours to obtain the composition; at this temperature, graphene oxide (such as the oxygen-containing functional group therein) and fatty acid produced A chemical reaction produces the composition.

[0031] Step B, ball milling spherical aluminum powder into flake aluminum powder: adding organic solvent, micron-sized spherical aluminum powder and the composition prepared in step A into a ball mill for ball milling, ball milling spherical aluminum powder into flake aluminum powder, and filtering Obtain the filter cake containing flaky aluminum powder afterward;

[0032] Step C, sieving and classifying: sieving the flake aluminum powder in the filter cake obtained in step B into more than two grades of flak...

Embodiment

[0044] exist In the horizontal ball mill, load 2000kg of 1.0mm steel balls, add 300kg of organic solvent (200# solvent oil), D 50 80kg of 8.8μm nitrogen atomized fine spherical aluminum powder, 4kg of graphene oxide oleic acid composition, ball milled for 24 hours, discharged, sieved, filtered through 500 mesh material, and the filtrate was returned to the ball milling process. The filter cake was surface treated by kneading (replenishment of graphene oxide oleic acid composition during kneading). The packaging is an aluminum silver paste product.

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Abstract

The invention provides a modified aluminum pigment. The modified aluminum pigment comprises the following components: 60wt%-70wt% of sheet aluminum powder, 25wt%-35wt% of an organic solvent and 3wt%-5wt% of a composition formed by graphene oxide and fatty acid. The invention correspondingly provides a preparation method of the modified aluminum pigment. Compared with traditional aluminum pigments, the modified aluminum pigment has excellent storage stability, sliver-dropping resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of fine inorganic chemicals, and in particular relates to a modified aluminum pigment and a preparation method thereof. Background technique [0002] Aluminum pigment is an important metal effect pigment, which is mainly used in coatings, inks, printing and dyeing, plastic products, papermaking, rubber products and ceramics. With the rapid development of downstream industries, the demand for pigments continues to expand. China's pigment industry The development prospect is very broad. Aluminum pigments are produced from pure aluminum metal, which has many characteristics of aluminum metal itself; aluminum pigments are actually flakes with pigment properties coated with a fatty acid film on the surface, and this form makes it unique. Its superior corrosion resistance and decorative properties make it widely used. [0003] There are two main methods of manufacturing aluminum pigments: the first method is the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/64C09C3/06C09C3/08
CPCC01P2004/61C09C1/648C09C3/006
Inventor 曾孟金
Owner 长沙族兴新材料股份有限公司
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