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Preparation method of environment-friendly aluminium pigment

An aluminum pigment, an environmentally friendly technology, applied in the direction of inorganic pigment treatment, chemical instruments and methods, fibrous fillers, etc., can solve the problem of not being able to export

Inactive Publication Date: 2014-03-12
重庆诺泰颜料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the content of prohibited substances in aluminum pigments produced by traditional processes is above 10,000ppm, far exceeding the EU’s requirement of less than 10ppm, and consumer products used as pigments cannot be exported to the EU

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of preparation method of environment-friendly aluminum pigment, comprises the following steps:

[0024] a. Take 80kg of aluminum powder, 120kg of D70 solvent oil, and 2.4kg of grinding aid in parts by mass;

[0025] b. Put the configured aluminum powder, D70 solvent oil and grinding aid into a ball mill equipped with 2000kg steel balls, and grind for 22 hours to obtain a mixed slurry;

[0026] C, drop the mixed slurry obtained by grinding into a 500-order vibrating sieve for sieving and filtering;

[0027] d, put the filtered slurry into the filter press and press to obtain an aluminum slurry filter cake with 20% volatile content;

[0028] e. Put the aluminum slurry filter cake into the kneader, control the temperature in the kneader to 50°C, add the treatment agent and stir to obtain a uniform aluminum slurry with a volatile content of 26%-38%.

[0029] The limiting conditions in the above-mentioned aluminum silver paste preparation steps are as follows:

[0...

Embodiment 2

[0035] 1. A preparation method of environment-friendly aluminum pigment, comprising the following steps:

[0036] a. Take 200kg of aluminum powder, 320kg of D70 solvent oil, and 6kg of grinding aid in parts by mass;

[0037] B. Put the configured aluminum powder, D70 solvent oil and grinding aid into a ball mill equipped with 5000kg parts by mass steel balls, and grind for 23 hours to obtain a mixed slurry;

[0038] C, drop the mixed slurry obtained by grinding into a 500-order vibrating sieve for sieving and filtering;

[0039] d, put the filtered slurry into the filter press and press to obtain an aluminum slurry filter cake with 20% volatile content;

[0040] e. Put the aluminum slurry filter cake into the kneader, control the temperature in the kneader to 50°C, add the treatment agent and stir to obtain a uniform aluminum slurry with a volatile content of 26%-38%.

[0041] The limiting conditions in the above-mentioned aluminum silver paste preparation steps are as follo...

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Abstract

The invention discloses a preparation method of an environment-friendly aluminium pigment. The preparation method comprises the following steps: a. preparing 80 parts by mass of aluminium powder, 120-130 parts by mass of D70 solvent oil and 2-2.5 parts by mass of grinding aid; b. throwing the prepared aluminium powder, D70 solvent oil and grinding aid into a ball mill internally equipped with 2000 parts by mass of steel balls, and grinding the materials for 20-23 hours, thus obtaining mixed paste; c. throwing the mixed paste obtained through grinding into a vibrating screen with 500-mesh screen pores to be filtered through screening; d. throwing the filtered paste into a filter press to be pressed until an aluminium paste filter cake with 20% volatile matter is obtained; e. throwing the aluminium paste filter cake into a kneading machine, controlling the temperature in the kneading machine to be 20-40 DEG C, adding treating agents and stirring the materials, thus obtaining uniform aluminium paste with 26-38% volatile matter. The aluminium pigment prepared by adopting the formulas has strong storage stability and is wide in application fields due to safe environmental protection characteristics.

Description

technical field [0001] The invention relates to a preparation method of a metal pigment, in particular to a preparation method of an environment-friendly aluminum pigment. Background technique [0002] Aluminum pigment, also known as aluminum silver paste, aluminum powder paste, flash paste, silver paste, is an important metal pigment. Its main components are flake-like aluminum particles and petroleum solvent, and it is in the form of a paste. It is characterized by smooth and flat surface of aluminum flakes, concentrated particle size distribution, regular shape, excellent light reflection ability and metallic luster, mixed with transparent color pigments, the paint film has obvious "angle-dependent color effect", and the decorative effect is very gorgeous beautiful. Mainly used in automotive coatings, weak plastic coatings, metal industrial coatings, marine coatings, heat-resistant coatings, roof coatings, etc. In the past two or three years, my country's aluminum-silv...

Claims

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Application Information

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IPC IPC(8): C09C1/64C09C3/04C09C3/08C09C3/06C09C3/10
Inventor 许诺
Owner 重庆诺泰颜料有限公司
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