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Method for preparing high-whiteness highly-metallic fine and white aluminum paste

A manufacturing method and high-metal technology, applied in pigment slurry, dyeing polymer organic compound treatment, dyeing physical treatment, etc., can solve the problems of wide particle size distribution, poor whiteness and metallic feeling, poor surface smoothness, etc. , to achieve the effect of high cleanliness, high metallic feeling and high whiteness

Active Publication Date: 2013-02-06
CHANGSHA AOTE METAL PIGMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional production process of fine white aluminum silver paste, since the same diameter grinding balls are used to grind the aluminum powders with different particle sizes, the aluminum powder whose original particle size matches the diameter of the grinding balls in the aluminum powder is ground After grinding, the surface smoothness is good, and the whiteness and metallic feel are good; while the aluminum powder whose original particle size does not match the diameter of the grinding ball (the original particle size is small or large) has poor surface smoothness, whiteness and metal feeling after grinding. Poor texture; resulting in the production of fine white aluminum silver paste products with poor surface smoothness, wide particle size distribution range, poor whiteness and metal feeling defects

Method used

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  • Method for preparing high-whiteness highly-metallic fine and white aluminum paste

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A manufacturing method of fine white aluminum silver paste with high whiteness and high metallic feeling, including the following steps:

[0021] The first step: once grinding

[0022] Will D 50 19~26μm fine spherical aluminum powder: 30Kg, 200 # Solvent oil: 60Kg, polyethylene wax: 0.4Kg, mixed evenly, placed in a ball mill, choose 800 kg of the first steel ball with two particle sizes of Φ5.0mm and Φ10mm as the ball milling medium, of which Φ5.0mm steel ball, Φ10mm The steel balls account for 40% and 60% of the total steel balls respectively. After 6 hours of grinding, the material is discharged and filtered directly to obtain the first filter cake with a solid content of 75-80%. The filtrate is returned to the ball milling process for recycling;

[0023] Step 2: Secondary fine grinding and polishing

[0024] The first filter cake obtained in the first step: 60Kg and 200 # Solvent oil: 70Kg, polyethylene wax: 0.3Kg, sodium lauryl sulfonate: 0.1Kg, mix evenly, choose 1300 kg o...

Embodiment 2

[0029] A manufacturing method of fine white aluminum silver paste with high whiteness and high metallic feeling, including the following steps:

[0030] The first step: once grinding

[0031] Will D 50 19~26μm fine spherical aluminum powder: 50Kg, D80: 100Kg, polyethylene wax and stearic acid total 0.7Kg (including polyethylene wax: stearic acid = 1:1), mix well, place in a ball mill, select the diameter 1,400 kilograms of the first steel ball with seven particle sizes of Φ3.0mm, Φ5.0mm, Φ7.0mm, Φ9.0mm, Φ11.0mm, Φ13.0mm, Φ15mm are used as the ball milling medium, among which: Φ3.0mm steel ball, Φ5 .0mm steel balls, Φ7.0mm steel balls, Φ9.0mm steel balls, Φ11.0mm steel balls, Φ13.0mm steel balls, and Φ15mm steel balls account for 10%, 10%, 15%, and 30% of the total steel balls, respectively , 15%, 10%, 10%, after 8 hours of grinding, the material is discharged and filtered directly to obtain the first filter cake with a solid content of 75-80%, and the filtrate is returned to the b...

Embodiment 3

[0038] A manufacturing method of fine white aluminum silver paste with high whiteness and high metallic feeling, including the following steps:

[0039] The first step: once grinding

[0040] Will D 50 Fine spherical aluminum powder of 19~26μm: 40Kg, S150: 60Kg, stearic acid: 0.55Kg, mix evenly, put it in a ball mill, choose four particle sizes: Φ3.0mm, Φ7.0mm, Φ11.0mm, Φ15mm 1300 kg of the first steel ball is used as the ball milling medium. Among them: Φ3.0mm steel ball, Φ7.0mm steel ball, Φ11.0mm steel ball, Φ15mm steel ball account for 15%, 35%, 35%, 15%, the material is discharged after 10 hours of grinding, and directly press-filtered to obtain the first filter cake with a solid content of 75-80%, and the filtrate is returned to the ball milling process for recycling;

[0041] Step 2: Secondary fine grinding and polishing

[0042] The first filter cake obtained in the first step: 70Kg and S150: 85Kg, stearic acid: 0.45Kg, and sodium dodecyl sulfonate 0.2Kg are mixed uniformly, ...

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Abstract

The invention discloses a method for preparing high-whiteness aluminum paste. A two-stage ball-milling method is adopted and comprises the first stage of expansion and breakage of a big steel ball with the diameter of 10.0mm to 16.0mm and the second stage of ball-milling polishing procedure of a small steel ball with diameter of 1.0mm-3.0mm. By adopting the two-stage ball-milling method, aluminum powder particles are expanded and broken by using the big steel ball at the first stage; the aluminum particles broken at the first stage are further grinded and polished by using the small steel ball at the second stage; and the surfaces of flaky aluminum pigment particles are smooth, and the high whiteness and high coverage rate of an aluminum paste product are ensured.

Description

Technical field [0001] The invention relates to a method for manufacturing aluminum silver paste, which is the raw material of metallic aluminum pigments, in particular to a method for manufacturing fine white aluminum silver paste with high whiteness and high metallicity; it belongs to the technical field of fine inorganic chemicals. Background technique [0002] Aluminum pigments are produced from pure aluminum metal. Aluminum pigment particles are actually flakes with pigment characteristics coated with a fatty acid film on the surface. This form has superior corrosion resistance and decorative properties, and is widely used. Existing aluminum pigment manufacturing methods mainly include dry production and wet production. The existing wet production process includes ① mixing aluminum powder with organic solvents and lubricants in a certain proportion and then placing them in a ball mill for grinding, ② screening After pressing and filtering, it is made into filter cake, and af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/64C09C3/04C09C3/10C09C3/08C09D17/00
Inventor 罗林周志良
Owner CHANGSHA AOTE METAL PIGMENT CO LTD
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