Preparation method of magnetic aluminum pigment

A technology of aluminum pigments and magnetism, which is applied in the field of preparation of magnetic aluminum pigments, can solve the problems that aluminum pigments are not magnetic, cannot respond positively, and cannot form three-dimensional artistic effects, etc., and achieves tight coating, small influence, and good magnetic properties Effect

Inactive Publication Date: 2013-09-25
HEFEI SUNRISE PIGMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although flaky aluminum pigments have good metallic luster effect and color flop effect, and are widely used in construction, automobile, paint, chemical and printing ink and other industries, ordinary aluminum pigments are not magnetic and cannot be active under a magnetic field. In response to changes in the magnetic field, it cannot form a good three-dimensional artistic effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1 , A kind of preparation method of magnetic aluminum pigment

[0023] A preparation method of magnetic aluminum pigment, comprising the following steps:

[0024] Step (1), the oily flaky aluminum pigment ground by a ball mill is cleaned in a cleaning tank with a ketone solvent for 1.0 h, then press-filtered, and solid-liquid separated to obtain a filter cake with a solid content of 75-80%;

[0025] Step (2), in the reactor, add the described filter cake of 20 weight parts, the ethanol of 70 weight parts, the magnetic powder material r-Fe of 3 weight parts 2 o 3 and 0.1 parts by weight of silane coupling agent 3-aminopropyltrimethoxysilane, stirred and dispersed at 35°C for 0.8h;

[0026] Step (3), the mass percent concentration of 1.5 parts by weight is that the ammoniacal liquor of 25% and 3 parts by weight distilled water are mixed, obtain ammoniacal water distilled water mixed solution, then described ammoniacal water distilled water mixed solution is dil...

Embodiment 2

[0030] Example 2 , A kind of preparation method of magnetic aluminum pigment

[0031] A preparation method of magnetic aluminum pigment, comprising the following steps:

[0032] Step (1), the oily flaky aluminum pigment ground by a ball mill is washed in a cleaning tank with a ketone solvent for 1.2 hours, then press-filtered, and solid-liquid separated to obtain a filter cake with a solid content of 75-80%;

[0033] Step (2), in reactor, add the described filter cake of 22 weight parts, the n-propanol solvent of 72 weight parts, the magnetic powder material Fe of 4 weight parts 3 o 4 and 0.12 parts by weight of silane coupling agent 3-aminopropyltriethoxysilane, stirred and dispersed at 33°C for 0.6h;

[0034] Step (3), the mass percent concentration of 1.3 parts by weight is that the ammoniacal liquor of 25% and 2.9 parts by weight of distilled water are mixed to obtain the ammoniacal water distilled water mixed solution, and then the ammoniacal distilled water mixed sol...

Embodiment 3

[0038] Example 3 , A kind of preparation method of magnetic aluminum pigment

[0039] A preparation method of magnetic aluminum pigment, comprising the following steps:

[0040] Step (1), the oily flaky aluminum pigment ground by a ball mill is washed in a cleaning tank with a ketone solvent for 1.3 hours, then press-filtered, and solid-liquid separated to obtain a filter cake with a solid content of 75-80%;

[0041] Step (2), in the reactor, add the described filter cake of 23 parts by weight, the Virahol solvent of 73 parts by weight, the magnetic powder material Co of 5 parts by weight x -Fe 3-x o 4 and 0.13 parts by weight of silane coupling agent 3-aminopropylmethyltriethoxysilane, stirred and dispersed at 31°C for 1 hour;

[0042] Step (3), the mass percent concentration of 1.1 parts by weight is that the ammoniacal liquor of 25% and 2.8 parts by weight of distilled water are mixed to obtain the mixed liquid of ammonia water and distilled water, and then the mixed sol...

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PUM

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Abstract

The invention provides a preparation method of magnetic aluminum pigment. The preparation method comprises the following steps of: washing flaky aluminum pigment through a ketone solvent, and performing press filtering to obtain a filter cake; placing the filter cake, an alcohol solvent, a magnetic powder material and a silane coupling agent into a reactor to be stirred and dispersed; simultaneously dropwise adding an alcohol diluent of ammonia water and an alcohol diluent of tetraethoxysilane for reaction; aging and performing press filtering on the mixed solution to obtain magnetic aluminum pigment coated by silicon dioxide; placing a ester solvent into the reactor, uniformly dispersing the magnetic aluminum pigment coated by the silicon dioxide into the ester solvent, dropwise adding acrylate monomers and an azo initiator into the reactor, sealing the reactor, and introducing inert gas into the reactor to wrap the mixture; performing press filtering on the mixture to obtain the double-layer coated magnetic flaky aluminum pigment. The magnetic aluminum pigment has excellent magnetism, the compactness in wrapping is achieved, a wrapping film is thin and uniform, the dispersion performance of the pigment in paint is good, and the magnetic aluminum pigment can be applied to 3D (three-dimensional) magic art paint.

Description

technical field [0001] The invention relates to a method for preparing an aluminum pigment, in particular to a method for preparing a magnetic aluminum pigment. Background technique [0002] In recent years, with the continuous deepening of my country's economic reform, people's living standards have been significantly improved, and they have a deeper understanding and higher requirements for the quality of life. With the innovation of decoration, 3D three-dimensional magic art paint is a high-end paint It has become the new favorite of fashion decoration. Its unique 3D stereoscopic effect, dreamy and vivid colors, unique metal texture, natural and smooth lines, and changeable visual effects are very popular among designers and popular choices for decoration. , it endows natural and beautiful three-dimensional lines and patterns, and deep visual effects to make the product have a vivid and lifelike feeling. [0003] 3D three-dimensional magic art paint is to add magnetic mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/64C09C3/06C09C3/08
Inventor 董前年朱双单
Owner HEFEI SUNRISE PIGMENTS
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