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Super-fine mercerized aluminum paste and preparation method thereof

A technology of ultra-fine wire and aluminum paste, applied in the direction of fibrous filler, dyed low molecular organic compound treatment, etc., can solve the problems of not enough softness and fineness, poor color white brightness, poor dispersion, etc., to achieve fine color, whiteness and brightness. The effect of improving and strong coverage

Inactive Publication Date: 2019-03-29
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

[0004] The invention provides an ultra-fine mercerized aluminum paste and a preparation method thereof to solve the technical problems of the existing fine flash aluminum paste, such as poor whiteness, softness and fineness, easy oxidation, and poor dispersibility

Method used

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  • Super-fine mercerized aluminum paste and preparation method thereof
  • Super-fine mercerized aluminum paste and preparation method thereof
  • Super-fine mercerized aluminum paste and preparation method thereof

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preparation example Construction

[0032] According to another aspect of the present invention, there is also provided a method for preparing the above-mentioned ultra-fine mercerized aluminum paste, comprising the steps of:

[0033] 1) Aluminum powder, organic solvent, linoleic acid and isostearic acid are ground for the first time, then added to phosphoric acid ester, and then ground for the second time,

[0034] 2) screening and pressing the material obtained in step 1) to make aluminum slurry filter cake,

[0035] 3) Kneading the aluminum paste filter cake with an organic solvent and a coupling agent to obtain an ultra-fine mercerized aluminum paste.

[0036]The organic solvent is a solvent for grinding, and its function is to isolate the aluminum powder from contact with air and water, and prevent the surface of the aluminum powder from being oxidized to form alumina. Isostearic acid, linoleic acid, and phosphate are used as lubricants and dispersants during grinding. Adding a dispersant to disperse the a...

Embodiment 1

[0048] Get atomized spherical aluminum powder 80kg (D 50 =1um), D70 and 150# mixed solvent oil 160kg, the mass ratio of D70 solvent oil and 150# solvent oil is 4:1, linoleic acid 1.5kg, isostearic acid 1.0kg, add to 900mm (diameter)*1500mm (length) of the horizontal ball mill (2000 kg of steel balls with a diameter of 1.0 mm have been added to the ball mill), rotate the ball mill at a speed of 45 rpm, so that the temperature of the outer wall of the ball mill does not exceed 50 ° C, stop for 42 hours after grinding, and then Add 1 kg of phosphate ester, grind for another 2 hours and stop;

[0049] Then obtain about 100 kg of filter cake with a solid content of about 76% after discharging, passing through a 400-mesh sieve, and press filtration;

[0050] Then put it into a kneader and add 15kg of D40 mineral spirits and 0.7kg of coupling agent to stir evenly and knead for 20 minutes to produce about 115.7kg of superfine mercerized aluminum paste with a solid content of about 66...

Embodiment 2

[0053] Get atomized spherical aluminum powder 70kg (D 50 =1um), D70 and 150# mixed solvent oil 155kg, the mass ratio of D70 solvent oil and 150# solvent oil is 3:1, linoleic acid 1.0kg, isostearic acid 1.2kg, add to 1000mm (diameter)*2000mm (length) of the horizontal ball mill (3000kg of bearing steel balls with a diameter of 0.8mm have been added to the ball mill), rotate the ball mill at a speed of 40 rpm, so that the temperature of the outer wall of the ball mill is lower than 55°C, stop the mill for 36 hours, and then Add 1.2kg of phosphoric acid ester, grind for another 2 hours and stop the machine;

[0054] Afterwards, obtain about 90 kg of a filter cake with a solid content of 76% after discharging, crossing 600 mesh sieve screening, and pressure filtration;

[0055] Then put it into a kneader, add 18kg of D40 and D70 mixed solvent oil and 0.756kg of coupling agent, stir evenly, and knead for 30 minutes to produce about 108.7kg of ultra-fine mercerized aluminum paste w...

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Abstract

The invention discloses super-fine mercerized aluminum paste and a preparation method thereof. The super-fine mercerized aluminum paste is prepared from the following components in mass percent: 62-67% of aluminum powder, 32-37% of organic solvent, 0.1-1.0% of isostearic acid, 0.1-1.0% of phosphate, and 0.2-1.6% of linoleic acid. The super-fine mercerized aluminum paste disclosed by the inventionhas the advantages that the aluminum powder has a smooth and flat surface, has a white, bright, soft and delicate color, has good dispersibility in paint and is not easy to oxidize after long-time storage, and the solvent for grinding is not easy to blacken and has long service life. The 3C paint or printing ink prepared from the super-fine mercerized aluminum paste disclosed by the invention hasa more white, bright and delicate mercerized color and has a very high hiding rare.

Description

technical field [0001] The invention relates to the technical field of aluminum paste preparation, in particular to an ultra-fine mercerized aluminum paste. In addition, the present invention also relates to a preparation method of the above-mentioned ultra-fine mercerized aluminum paste. Background technique [0002] Aluminum paste is an indispensable metal pigment. Its main components are flake-like aluminum particles and organic solvents, and it is in the form of a paste. The characteristics of aluminum paste are that the surface of aluminum flakes is smooth and flat, the particle size distribution is concentrated, the shape is regular, and it has excellent light reflection ability and metallic luster. When mixed with transparent color pigments, the paint film has obvious "angle-dependent color effect", decorative effect Very gorgeous and beautiful. Flash aluminum paste is a kind of aluminum paste, which can be divided into coarse flash aluminum paste and fine flash alu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/64C09C3/08
CPCC09C1/646C09C3/08
Inventor 梁明慧曾孟金夏风梁晓斌
Owner 长沙族兴新材料股份有限公司
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