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Electrophoresis suspension for material coating and preparation method of electrophoresis suspension

An electrophoretic suspension, coating technology, applied in the direction of coating, electrophoretic plating, electrolytic coating, etc., to achieve the effect of uniform and thorough dispersion, long aging time and simple process

Inactive Publication Date: 2019-02-15
ZHENJIANG COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Zn x Fe 3-x o 4 It is a ferrite material, which has huge applications in the fields of wave absorption, microwave, power devices, etc., but it has not been applied to electrophoretic suspension so far

Method used

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  • Electrophoresis suspension for material coating and preparation method of electrophoresis suspension
  • Electrophoresis suspension for material coating and preparation method of electrophoresis suspension

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The zinc ferrite electrophoresis suspension for material coating of the present invention specifically includes Zn x Fe 3-x O 4 Solid phase, where x=1.

[0027] The ZnFe 2 O 4 The solid phase accounts for 1% of the mass fraction of the electrophoretic suspension.

[0028] The method for preparing a zinc ferrite electrophoretic suspension for material coating of the present invention includes the following steps:

[0029] Step 1: Synthesize ZnFe by chemical co-precipitation 2 O 4 Powder, the particle size of the powder is about 30nm;

[0030] The second step, using toluene / ethanol / isopropanol as the solvent, at 5℃, the ZnFe 2 O 4 The powder is dispersed in the above solvent, castor oil is added, and the pH value is adjusted to 4 with glacial acetic acid, and the mixture is uniformly dispersed with mechanical stirring and ultrasonic vibration.

[0031] Wherein, the ZnFe 2 O 4 The specific preparation steps of the powder are: FeCl 3 And ZnCl 2 Mix it into deionized water at a molar ...

Embodiment 2

[0040] The zinc ferrite electrophoresis suspension for material coating of the present invention specifically includes Zn x Fe 3-x O 4 Solid phase, where x = 0.8.

[0041] The Zn 0.8 Fe 2.2 O 4 The solid phase accounts for 0.5% of the mass fraction of the electrophoretic suspension.

[0042] The method for preparing a zinc ferrite electrophoretic suspension for material coating of the present invention includes the following steps:

[0043] Step 1: Synthesize Zn by chemical co-precipitation 0.8 Fe 2.2 O 4 Powder, the particle size of the powder is 100nm;

[0044] The second step, using toluene / ethanol / isopropanol as the solvent, at 30 ℃, the Zn 0.8 Fe 2.2 O 4 The powder is dispersed in the above-mentioned solvent, castor oil is added, and the pH value is adjusted to 5 with glacial acetic acid, and it is uniformly dispersed with mechanical stirring and ultrasonic vibration.

[0045] Where the Zn 0.8 Fe 2.2 O 4 The specific preparation steps of the powder are: FeCl 3 And ZnCl 2 Mix into d...

Embodiment 3

[0054] The zinc ferrite electrophoresis suspension for material coating of the present invention specifically includes Zn x Fe 3-x O 4 Solid phase, where x=0.5.

[0055] The Zn 0.5 Fe 2.5 O 4 The solid phase accounts for 5% of the mass fraction of the electrophoretic suspension.

[0056] The method for preparing a zinc ferrite electrophoretic suspension for material coating of the present invention includes the following steps:

[0057] Step 1: Synthesize Zn by chemical co-precipitation 0.5 Fe 2.5 O 4 Powder, the particle size of the powder is about 200nm, such as figure 1 Shown

[0058] The second step, using toluene / ethanol / isopropanol as the solvent, at 45 ℃, the Zn 0.5 Fe 2.5 O 4 The powder is dispersed in the above-mentioned solvent, castor oil is added, and the pH value is adjusted to 6 with glacial acetic acid, and it is evenly dispersed with mechanical stirring and ultrasonic vibration.

[0059] Among them, Zn 0.5 Fe 2.5 O 4 The specific preparation steps of the powder are: FeCl...

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Abstract

The invention discloses an electrophoresis suspension for a material coating and a preparation method of the electrophoresis suspension. The electrophoresis suspension specifically includes ZnxFe(3-x)O4, wherein x is larger than or equal to 0.5 and is smaller than or equal to 1. The preparation method includes the steps of synthesis of ZnxFe(3-x)O4 powder and dispersion and suspension of the ZnxFe(3-x)O4 powder. The prepared electrophoresis suspension has positive charges, can realize thorough dispersion, is long in aging time and has the high stability, the Zeta potential is higher than 30 mV, the preparation technology is simple, and the cost is low.

Description

Technical field [0001] The invention belongs to the technical field of colloidal chemistry and electrophoresis, and relates to electrophoretic deposition coating technology, in particular to a zinc ferrite electrophoretic suspension for material coating and a preparation method thereof. Background technique [0002] Electrophoretic deposition is a widely used material coating preparation technology. Its principle is to apply an electric field in a suspension of charged particles. The charged particles move in opposite polarities under the action of the electric field and are deposited on the electrode to form a uniform The thickness of the film can be in the range of 0.2μm to 200μm. Its advantages include controllable coating thickness, accurate stoichiometric ratio, simple equipment, and no limitation of substrate shape. The characteristics of the electrophoretic suspension, such as stability, are key factors that determine the performance of the coating. Therefore, the prepar...

Claims

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Application Information

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IPC IPC(8): C25D13/02
CPCC25D13/02
Inventor 赵飞
Owner ZHENJIANG COLLEGE