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Manufacturing method of strong twinkling aluminium pastes

A manufacturing method and technology of aluminum silver paste, applied in the directions of pigment paste, dyeing physical treatment, fibrous filler, etc., can solve the problems of wide particle size distribution, irregular particle shape, poor scintillation performance, etc., and achieve narrow particle size distribution, surface Smooth and clean, strong flickering performance

Active Publication Date: 2010-06-16
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

But this method is to use large steel balls to break the coarse aluminum powder into scales, the shape of the product particles is irregular, the surface smoothness is poor, the thickness of the aluminum flakes is generally 0.2-0.5μm, and the particle size distribution is wide, resulting in poor scintillation performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) In the φ800×1000 vertical stirring ball mill, put 500kg of glass balls with a diameter of 1.0-5.0mm, add 100kg of D50 solvent oil, D 50 40kg of 7.8μm nitrogen atomized fine spherical aluminum powder and 4kg of oleic acid were ball milled for 48 hours at a speed of 50-200 rpm, discharged, filtered, and the filtrate was returned to the ball milling process for recycling.

[0014] (2) The filter cake enters the screening and grading process, first passes through a 120-mesh sieve, and then passes through a 500-mesh sieve. The materials at all levels of screening are filtered with a filter press, dried, and then fresh D 50 Washing with organic solvents; the filtrate is returned to the screening process for recycling.

[0015] (3) The filter cake enters the kneading process for surface treatment, and the packaging becomes a strong flashing aluminum silver paste product.

Embodiment 2

[0017] (1) In the φ800×1000 vertical stirring ball mill, put 500kg of glass balls with a diameter of 1.0-5.0mm, add 200kg of D80 solvent oil, D 50 80kg of nitrogen atomized fine spherical aluminum powder of 7.8μm, 4kg of oleic acid, ball milled for 38 hours at a speed of 50-200 rpm, discharged, filtered, and the filtrate returned to the ball milling process for recycling;

[0018] (2) The filter cake enters the screening and grading process, first passes through a 120-mesh sieve, and then passes through a 500-mesh sieve, presses the materials at all levels of screening with a filter press, blows them dry, and washes them with fresh organic solvents; the filtrate returns to the sieve Recycling by process;

[0019] (3) The filter cake enters the kneading process for surface treatment, and the packaging becomes a strong flashing aluminum silver paste product.

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Abstract

The invention discloses a manufacturing method of strong twinkling aluminium pastes. The manufacturing method comprises the following steps: in a vertical stirring mill, adopting glass beads with the diameter being 1.0-5.0mm to serve as milling medium of a ball mill; mixing uniformly the ultrafine spherical aluminium powder with d50 being greater than 8mu m and less than 10mu m, organic solvent and dispersing agent according to the ratio of 20-50:80-200:1-5; ball milling for 20-50h under the rotating speed being 50-200rpm, discharging, filter pressing, introducing the filter liquor to the ball milling procedure for recycling; classifying through fine screening; filter pressing the screened material at each stage by the filter press; blowing dry and reusing; filter pressing and washing through; carrying out surface treatment on the filter cakes entering the mediating procedure; controlling the thickness of the aluminium particles to be 1-2mu m; and packaging to obtain the finished products.

Description

technical field [0001] The invention relates to a method for preparing aluminum pigments in fine chemical industry, in particular to a method for manufacturing strong flashing aluminum-silver paste. Background technique [0002] The existing manufacturing methods of aluminum pigments mainly include dry production and wet production; the existing wet production includes (1) mixing aluminum powder with organic solvents, lubricants, etc. in a certain proportion and then grinding in a ball mill; (2) After sieving, press filter to make a filter cake, (3) surface treatment by kneading to become aluminum silver paste; but the existing wet production is to use large steel balls with a size of 1.5 mm or more, and ball mill for 15-25 hours to break the coarse aluminum powder into flakes , after sieving and passing through 500 mesh materials, press filter directly, the filtrate returns to the ball milling process, the filter cake is kneaded and surface treated, and the package is an al...

Claims

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Application Information

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IPC IPC(8): C09C1/64C09C3/04C09D17/00
Inventor 夏风曾孟金苏力农姜小平刘顺治
Owner 长沙族兴新材料股份有限公司
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