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Preparation method for floating type powdery aluminum pigment

A floating type, aluminum pigment technology, applied in the direction of fibrous fillers, dyed low-molecular-weight organic compounds, etc., can solve the problems of difficult to achieve industrialized mass production, reduced floating performance, product performance degradation, etc., to achieve good dispersion effect and decorative effect , the effect of increasing the floating value and improving the dispersion performance

Active Publication Date: 2015-04-01
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

[0005] However, there are many problems in the existing wet grinding process: first, because the filter cake brings a large amount of stearic acid in the grinding process, this substance will stick the aluminum flakes together during the drying process and is difficult to disperse; , due to the characteristics of floating products, high-temperature drying will reduce or disappear the floating performance of the product, resulting in a significant decline in the performance of the product
Third, considering the above factors, the drying time will be longer, making it difficult to realize industrialized mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1.1 Preparation of leafing powder aluminum pigment

[0050] 1) Add 500kg of S-150 aromatic hydrocarbon solvent into a ￠1000x1200mm stainless steel disc mixer, set the speed of the mixer to 120 rpm, and start stirring. Then add 200kg ZGP-04 type floating aluminum silver paste produced by Changsha Zuxing New Material Co., Ltd. in the mixer under stirring state, keep stirring for 3 hours. Among them, the main component of the S-150 aromatic hydrocarbon solvent is durene, with a distillation range of 180-210°C; the specific components of the ZGP-04 type floating aluminum silver paste are: 70wt% aluminum flakes, 2.4wt% stearin Acid and 27.6wt% C10 aromatics with a solids content of 72.4%, a particle size distribution with a D50 of 4um and an aspect ratio of 110:1.

[0051] 2) After the stirring is completed, pump the materials into the box-type filter press. After all the materials enter the filter press, turn on the compressed air and dry the filter cake in the filter pre...

Embodiment 2

[0061] 2.1 Preparation of leafing powder aluminum pigment

[0062] 1) Add 500kg of S-150 aromatic hydrocarbon solvent into a ￠1000x1200mm stainless steel disc mixer, set the speed of the mixer to 120 rpm, and start stirring. Then add 250kg ZGP-06 type floating aluminum silver paste produced by Changsha Zuxing New Materials Co., Ltd. in the mixer under stirring state, keep stirring for 3 hours. Wherein, the main component of the S-150 aromatic hydrocarbon solvent is durene, with a distillation range of 180-210°C; the specific components of the ZGP-06 type floating aluminum silver paste are: 72wt% aluminum flakes, 1.5wt% stearin Acid, 26.5wt% C10 aromatics, solids content 73.5%, particle size distribution D50 5um, diameter-thickness ratio 100:1.

[0063] 2) After the stirring is completed, pump the materials into the box-type filter press. After all the materials enter the filter press, turn on the compressed air and dry the filter cake in the filter press until the solid cont...

Embodiment 3

[0073] 3.1 Preparation of leafing powder aluminum pigment

[0074]1) Add 500kg of C9 aromatic hydrocarbon solvent into a ￠1000x1200mm stainless steel disc mixer, set the speed of the mixer to 120 rpm, and start stirring. Then add 167kg of ZGP-11 type floating aluminum silver paste produced by Changsha Zuxing New Material Co., Ltd. in the mixer under stirring state, keep stirring for 3 hours. Wherein, the specific components of the ZGP-11 type floating aluminum silver paste are: 71wt% aluminum flakes, 2wt% stearic acid and 27wt% C10 aromatic hydrocarbons, wherein the solid content is 73%, the D50 of the particle size distribution is 6um, the diameter The thickness ratio is 100:1.

[0075] 2) After the stirring is completed, pump the materials into the box-type filter press. After all the materials enter the filter press, turn on the compressed air and dry the filter cake in the filter press until the solid content is not less than 75%. .

[0076] 3) Add 500kg of C9 aromatic...

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Abstract

The invention discloses a preparation method for a floating type powdery aluminum pigment. The preparation method includes the step of solvent displacement, wherein a solvent is used for cleaning floating type aluminum silver paste; the step of primary filter pressing, wherein filter pressing is conducted on the floating type aluminum silver paste obtained in the solvent displacement step to obtain a first filter cake; the step of liquid phase dispersion, wherein a solvent is adopted for dispersing the first filter cake to obtain an aluminum sheet suspension; the step of surface treatment, wherein aluminum sheets in the aluminum sheet suspension are coated with surface treating agents. The preparation method has the advantages that the preparation process is simple, consumed time is short, repeatability is high and the stability of the obtained floating type powdery aluminum pigment is high. The floating type powdery aluminum pigment obtained through the method has a remarkable mirror plane effect, is good in dispersing performance and also has good floating performance.

Description

technical field [0001] The invention belongs to the field of metal pigment preparation, in particular to a method for preparing floating powdery aluminum pigment. Background technique [0002] Powdered aluminum pigment, also known as coating aluminum powder, is one of the common characteristic powders. It has excellent metal effect, has a large demand, and has many varieties. It is a relatively mature metal pigment. The floating powdery aluminum pigment refers to the floating powdery aluminum pigment with a solid content greater than 99%, which is mainly used in powder coatings, environmentally friendly inks, environmentally friendly plastics and other fields. At present, there are mainly two methods for preparing floating powdery aluminum pigments, one is a dry grinding process, and the other is a wet grinding process. [0003] The dry grinding process means that in the ball mill, under the condition of inert gas protection, the temperature is strictly controlled, the spra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/64C09C3/08
Inventor 赵守元石龙周少成
Owner 长沙族兴新材料股份有限公司
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