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Dispersion device and method for ultrafine powder in coating

A technology of ultra-fine powder and dispersing device, which is applied in the direction of grain processing, etc., can solve the problems of difficult to achieve powder dispersion and difficult to achieve, and achieve the effect of eliminating static electricity and avoiding secondary agglomeration.

Active Publication Date: 2019-03-08
MING CROWN ADVANCED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simple high-speed stirring and dispersing is generally difficult to achieve the effect of powder dispersion, especially for adhesives or coatings with fineness below 10 microns.

Method used

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  • Dispersion device and method for ultrafine powder in coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , the dispersing device of ultrafine powder in the coating according to the embodiment of the present invention, including a bottom plate (not shown in the figure) and a high-speed rotor 1, a powder crushing net 2, and a static elimination net arranged on the bottom plate and sequentially set from inside to outside 3 and the cooling system 4, the bottom plate, the high-speed rotor 1, and the cooling system 4 are all made of stainless steel and hard aluminum. In other embodiments, the bottom plate, the high-speed rotor 1, and the cooling system 4 can also be made of hard plastic. In the embodiment, the speed of the high-speed rotor 1 is 2000-7000rpm, and the high-speed rotor 1 is connected to the driving machine (not shown) through its rotating shaft (not shown in the figure), and the driving machine is an explosion-proof motor. In other embodiments, the driving machine is also It can be a pneumatic motor, and the high-speed rotor 1 can also be driven by oth...

Embodiment 2

[0031] A method for dispersing ultrafine powder in a coating of the present embodiment uses the dispersing device of Embodiment 1 to disperse, and the method specifically includes the following steps:

[0032] Inject paint containing ultra-fine powder into the interior of the high-speed rotor;

[0033] Start the high-speed rotor to make the paint perform high-speed centrifugal motion and throw the high-speed rotor to the powder crushing net. The ultra-fine powder in the paint hits the powder crushing net, thereby breaking up the ultra-fine powder in the paint;

[0034] At the moment of breaking up the ultrafine powder, the ultrafine powder is subjected to static electricity removal treatment and cooling treatment, which realizes the dispersion of the ultrafine powder in the coating;

[0035] Wherein, the high-speed rotor refers to a high-speed rotor whose rotational speed is 2000-7000 rpm.

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Abstract

The invention relates to the technical field of adhesive (paint) dispersion, in particular to a dispersion device and method for ultrafine powder in paint. The dispersing device of the present invention includes a base plate and a high-speed rotor with a rotating speed of 2000-7000rpm, a powder crushing net, a static elimination net and a cooling system that are arranged on the base plate and are sequentially sleeved from the inside to the outside. The rotating shaft of the high-speed rotor passes through the base plate and The sealing ring is sealed with the bottom plate, the powder crushing net and the static elimination net are fixed on the bottom plate, the cooling system is sealed and fixed on the bottom plate, the high-speed rotor is provided with a feed port for paint injection, and the cooling system has a hole for paint flow out Outlet. The dispersing device and dispersing method of the present invention, firstly, the superfine powder in the coating is dispersed instantaneously, and the electrical conductivity remains good; secondly, at the moment of dispersion, the static electricity of the superfine powder is eliminated to avoid secondary agglomeration; furthermore, After cooling or cooling treatment, the secondary agglomeration can be further avoided.

Description

technical field [0001] The invention relates to the technical field of adhesive (paint) dispersion, in particular to a dispersion device and method for ultrafine powder in paint. Background technique [0002] With the rapid development of materials such as lithium batteries, optics, photovoltaics, and shielding, the demand for high-performance adhesives (coatings) is increasing. [0003] The preparation of adhesives (coatings) is currently mainly carried out by methods such as ball milling, sand milling, and high-speed dispersion. The ball milling process is more traditional and can meet the preparation needs of most adhesives or coatings. However, the process takes a long time, generally requiring a processing cycle of 5 to 7 days, and because of the long working time, the damage to some powders is increased. If the metal powder is ball milled for a long time, its surface will be resistant to oxidation. If the layer is destroyed, the electrical conductivity will decrease o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C13/09B02C13/13B02C13/26
CPCB02C13/09B02C13/13B02C13/26
Inventor 李成利闫洪嘉
Owner MING CROWN ADVANCED MATERIAL CO LTD