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A method for preparing ultrafine flaky zinc-containing alloy powder by wet ball milling and its product and application

A technology of wet ball milling and zinc alloy, applied in transportation and packaging, metal processing equipment, coating, etc., can solve the problem of reducing the frequency of collision between some raw materials and ball milling media, and affecting the overall particle size distribution and flaky degree of the product , can not be dispersed and other problems, to achieve the effect of good particle size distribution, increase the frequency of collision, and strong hiding power

Active Publication Date: 2022-01-18
湖南昊宏新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In addition, in the previous research and practice, whether it is dry ball milling or wet ball milling, no dispersant has been added separately in the ball milling process, so in the ball milling process, some raw materials cannot be well obtained in the ball milling solvent or ball milling medium. Dispersion reduces the frequency of collisions between some raw materials and ball milling media, thereby affecting the overall particle size distribution and flaky degree of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Weigh 280g of atomized spherical zinc-aluminum alloy powder raw material with a weight of 7 μm and an average particle size of 7 μm, and place it in a 2L stainless steel ball mill tank; Add 500g of stainless steel balls with a radius of 7.5mm, 300g of stainless steel balls with a radius of 10mm, 400g of stainless steel balls with a radius of 15mm, and 200g of stainless steel balls with a radius of 20mm at a material ratio of 8:1; % Add zinc polyacrylate and cetyl alcohol with a molecular weight of 3000 into the ball mill jar together; then add 0.3g of polyoxyethylene octylphenol ether-10; start the ball mill, adjust the speed of the mill to 550 rpm, and grind The tank temperature is controlled at 80°C, and the grinding time is 10 hours; after the grinding is completed, the ball mill slurry is cooled to room temperature, the zinc-aluminum alloy slurry is taken out and put into a suction filter bottle for vacuum filtration, and the ball mill solvent and auxiliary agent in ...

Embodiment 2

[0054]Weigh 200g of atomized spherical zinc-aluminum alloy powder raw material with an average particle size of 6.5 μm and place it in a 2L stainless steel ball mill tank; add 400g of ball milling solvent ethylene glycol according to the ratio of solid to liquid ratio of 0.5:1; Add 650g of stainless steel balls with a radius of 7.5mm, 400g of stainless steel balls with a radius of 10mm, 650g of stainless steel balls with a radius of 15mm, and 200g of stainless steel balls with a radius of 20mm at a ratio of 10:1; 1.6% join the polyacrylic acid aluminum that molecular weight is 3500, diethanolamine modified polymaleic anhydride copolymer in the ball mill jar together; Then add the polyoxyethylene (20) sorbitan monolaurate of 0.3g; Start ball mill , adjust the speed of the grinding machine to 700 rpm, control the temperature of the grinding tank at 150°C, and the grinding time is 2.5 hours; after the grinding is completed, cool the ball mill slurry to room temperature, take out t...

Embodiment 3

[0056] Weigh 200g of atomized spherical zinc-aluminum alloy powder raw material with an average particle size of 5.5μm and place it in a 2L stainless steel ball mill tank; add 66g of ball mill solvent propylene glycol according to the ratio of solid to liquid 3:1; Add 750g of stainless steel balls with a radius of 7.5mm, 500g of stainless steel balls with a radius of 10mm, 750g of stainless steel balls with a radius of 15mm, and 300g of stainless steel balls with a radius of 20mm at a ratio of 12:1; Add zinc polyacrylate and triethanolamine with a molecular weight of 2500 into the ball milling tank together; then add 0.35 g of polyoxyethylene octylphenol ether-10; start the ball mill, adjust the mill speed to 800 rpm, and the temperature of the grinding tank The temperature is controlled at 200°C, and the grinding time is 2 hours; after the grinding is completed, the temperature of the ball mill slurry is cooled to room temperature, and the zinc-aluminum alloy slurry is taken o...

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PUM

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Abstract

The invention discloses a preparation method and application of an ultra-fine scaly zinc-containing alloy. The spherical atomized zinc-containing alloy powder and ball milling solvent, grinding aid, ball milling medium and dispersing agent are put into a ball milling tank in proportion, Heating and temperature-controlled wet ball milling. Then, the obtained ball-milled slurry is successively subjected to filtration, ultrasonic cleaning, rinsing, drying and other processes to obtain the scaly zinc-containing alloy powder. , the bulk density is 0.85g / cm 3 ‑0.95g / cm 3 . The ultrafine scaly zinc-containing alloy powder prepared by the invention has high flake degree, large diameter-to-thickness ratio, strong covering power, smooth surface, low oxidation degree and good particle size distribution. Production of water-based dacromet coatings, inorganic water-based zinc-rich aluminum paints and water-based heavy-duty anti-corrosion coatings with different specifications.

Description

technical field [0001] The invention relates to a method for preparing metal flake-like alloy powder by wet ball milling, in particular to a method for preparing ultrafine scale-like zinc-containing alloy powder by wet ball milling, a product thereof and a product application, and belongs to the technical field of hydrometallurgy. Background technique [0002] Ultrafine flaky zinc, aluminum and zinc-containing alloys have been widely used in various industries such as coating anti-corrosion, medicine, pesticide and battery, and the most widely used are coating and anti-corrosion. According to relevant research data, my country's anti-corrosion coatings will break through the 1 million tons mark in 2020. With the development of modern industrialization and people's increasing attention to anti-corrosion issues, zinc-aluminum coatings are increasingly widely used, so ultra-fine The annual consumption of zinc powder, aluminum powder and zinc-aluminum alloy powder is increasing y...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/04B22F1/068B22F1/10C09D5/10
CPCB22F9/04C09D5/103C09D5/106B22F2009/043B22F2009/042B22F1/068
Inventor 董仁安张伟陈上吴显明
Owner 湖南昊宏新材料科技有限公司
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