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Preparation method for high brightness aluminum pigment

An aluminum pigment, high-brightness technology, used in anti-corrosion coatings, fibrous fillers, metal-free paints, etc., can solve a lot of capital, environmental pollution and other problems, achieve excellent adhesion, alleviate serious pollution problems, scratch resistance good effect

Active Publication Date: 2011-06-22
长沙族兴新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the three wastes (exhaust gas, waste liquid, waste) produced in the electroplating process will cause serious environmental pollution
If you want to carry out in-depth treatment of the three wastes, you must invest a lot of money

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: mix with xylene with 10% nitrocellulose resin, after stirring evenly, roller is coated on polyester film and forms aluminized film carrier, and the nitrocellulose resin amount of coating is per square meter of polyester film Apply 20 grams. The aluminized film carrier is sent to a vacuum aluminum coating machine for vacuum aluminizing to form an aluminized film, and the thickness of the aluminized layer is controlled at 30 ± 2 nanometers. The aluminized film is peeled off the aluminized layer on a film stripping machine, the weight of the aluminum sheet in the suspension is 1% of the weight of the aluminized film, and the organic solvent in the film stripping machine is 50% xylene and 50% methyl ethyl ketone .

Embodiment 2

[0029] Embodiment 2: Roll coating 10% nitrocellulose resin on the polyester film to form an aluminized film carrier, and the amount of coated nitrocellulose resin is 20 grams per square meter of polyester film. The aluminized film carrier is sent to a vacuum aluminum coating machine for vacuum aluminizing to form an aluminized film, and the thickness of the aluminized layer is controlled at 30 ± 2 nanometers. The aluminized film is peeled off the aluminized film on a stripping machine, the weight of the aluminum sheet in the suspension is 1% of the aluminized film weight, and the organic solvent in the film stripping machine is 25% xylene, 25% acetone, 25% methyl ethyl ketone and 25% butyl acetate.

Embodiment 3

[0030] Embodiment 3: disperse acrylic resin in xylene, be made into 20% xylene solution, then roll-coat on polyester film to form aluminized film carrier, the acrylic resin amount of coating is the polyester film coating of every square meter 20 grams. The aluminized film carrier is sent to a vacuum aluminum coating machine for vacuum aluminizing to form an aluminized film, and the thickness of the aluminized layer is controlled at 30 ± 2 nanometers. The aluminized film is peeled off the aluminized layer on a film stripping machine, the weight of the aluminum sheet in the suspension is 1% of the weight of the aluminized film, and the organic solvent in the film stripping machine is 50% xylene, 30% methyl ethyl ketone and 20% acetone.

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Abstract

A preparation method for high brightness aluminum pigment is disclosed, which belongs to the technical field of preparing the aluminum pigment and which is implemented in accordance with the followingsteps that: A, on a roller coating machine, peelable resin is roller-coated on an aluminized film carrier formed by a high polymer thin film; B, the aluminized film carrier is put in a vacuum aluminizing machine and vacuum aluminizing is performed on the peelable resin so as to form an aluminized film with an aluminized layer; C, the aluminized film is put into a peeler and organic solvent is used to dissolve the peelable resin so that the aluminized layer can be separated from the high polymer thin film to form suspension; D, the suspension is subjected to liquid-solid phase separation on acentrifugal machine, obtaining an aluminum sheet aggregate having particle size of 20-50 microns; E, the aluminum sheet aggregate is agitated and pulverized on an all-purpose pulverization dispersionemulsifier to obtain aluminum sheets having particle size of 6-10 microns; F, the aluminum sheets are mixed and agitated with the organic solvent to form the high brightness aluminum pigment with 10-20% of solid content. With reasonable process, the invention can effectually reduce environmental pollution and enhance comprehensive performance of aluminum pigment.

Description

technical field [0001] The invention relates to a preparation method of high-brightness aluminum pigment, which belongs to the technical field of aluminum pigment preparation. Background technique [0002] Driven by the lifestyle driven by new technology, silver effect is quite popular in the market. Many consumer products, such as automobiles, household appliances, etc., have a metallic effect on their exterior. Aluminum pigments are often used today to produce metallic effects on consumer product surfaces. [0003] The existing aluminum pigments that are commonly used are made by wet ball milling. The raw aluminum powder is ball-milled under the action of fatty acid, solvent and steel ball to make it into a flat aluminum sheet. The thickness of these aluminum flakes is 200-500 nanometers. Aluminum flakes of different particle sizes are obtained by sieving, and these aluminum flakes are kneaded with a high-boiling organic solvent to form a paste with an aluminum content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/64C09C3/10C23C14/20C09D5/10C09D5/38
Inventor 刘维民
Owner 长沙族兴新材料股份有限公司
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