Preparation method of leafing aluminum paste

A technology of aluminum silver paste and floating type, which is applied in the direction of pigment paste, dyeing physical treatment, dyeing low molecular organic compound treatment, etc. It can solve the problem of insufficient whiteness and high flash silver brightness, damage to aluminum flakes, and harm to human health, etc. problems, to improve stability and storage time, increase whiteness and sparkle, and easy to float

Inactive Publication Date: 2014-03-05
嘉兴市华源铝制品有限公司
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AI Technical Summary

Problems solved by technology

[0005] In addition, there have always been many disadvantages in the existing design of the floating aluminum silver paste: first, the use of traditional solvents containing polycyclic aromatic hydrocarbons is not obvious enough in terms of whiteness and high silver flash brightness, and it is also harmful to human health; second, The internal structure of the ball mill is not very reasonable. The internal cross-sectional structure adopts a square lifting rib with a height of 8 cm, which leads to a too small throwing angle during ball milling and damages the formed aluminum flakes.

Method used

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  • Preparation method of leafing aluminum paste

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preparation example Construction

[0032] A preparation method of floating aluminum silver paste, the method has the following steps:

[0033] (1) Selection of ball mill: use horizontal ball mill 1, such as figure 1 As shown, the number of lifting ribs 2 in the horizontal ball mill 1 is nine or ten equally divided angles, the cross section of the lifting ribs 2 is finger-shaped, and the height of the lifting ribs 2 is 10 cm;

[0034] (2) Selection and ratio of solvent oil: D70 solvent oil is used, and the ratio of D70 solvent oil to aluminum powder is 1.5:1;

[0035] (3) Mixing: Add aluminum powder and D70 solvent oil with a selected ratio and a certain amount of ball milling additives into the ball mill and mix them. The ball milling additives are a certain proportion of surfactants, coupling agents, grinding aids, and micron spherical aluminum particles. , the surfactant is one or a mixture of oleic acid and erucic acid, the coupling agent is one or a mixture of titanate and γ-ampropyltrihexyloxysilane, and ...

Embodiment 1

[0044] Example 1: steel ball diameter 0.8mm, small steel ball weight 2000Kg, aluminum powder 80Kg, D70 solvent oil 120Kg, ball milling time 155 minutes, frequency 45 Hz, temperature 42°C.

Embodiment 2

[0045] Example 2: steel ball diameter 0.8mm, small steel ball weight 2000Kg, aluminum powder 80Kg, D70 solvent oil 120Kg, ball milling time 160 minutes, frequency 42 Hz, temperature 40°C.

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Abstract

The invention discloses a preparation method of leafing aluminum paste, which comprises the following steps: selection of ball mill, selection and proportioning of solvent oil, mixing, primary ball milling, secondary ball milling, primary screening, secondary screening, pressure filtration, material supplementation, and kneading to obtain the finished product. The aluminum paste produced by the method has low density, and thus, can easily float on the paint surface; and the preparation method increases the whiteness and brightness of the aluminum paste, greatly enhances the stability of the aluminum paste and greatly prolongs the storage time of the aluminum paste.

Description

technical field [0001] The invention relates to a preparation method of aluminum silver paste, in particular to a preparation method of floating aluminum silver paste. Background technique [0002] Aluminum silver paste is an indispensable metal pigment popular in the world in recent years. It is characterized by smooth and flat surface of aluminum flakes, concentrated particle size distribution, regular shape, excellent light reflection ability and metallic luster. It is mixed with transparent color pigments. The paint film has an obvious "angle-dependent effect", and the decorative effect is very gorgeous and beautiful. It has been widely used in automotive coatings, weak electric plastic coatings, metal industrial coatings, marine coatings, heat-resistant coatings, and roof coatings. [0003] Aluminum silver paste can be divided into two categories: floating type and non-leafing type. During the grinding process, one fatty acid is replaced by another, so that the aluminu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/64C09C3/04C09C3/12C09C3/08C09D17/00
Inventor 王立成
Owner 嘉兴市华源铝制品有限公司
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