A kind of carbon black production method with electromagnetic shielding performance

A production method and electromagnetic shielding technology, applied in the direction of magnetic/electric field shielding, electrical components, fibrous fillers, etc., can solve the problems of difficult industrial production of electromagnetic shielding carbon black, achieve enhanced electromagnetic shielding effect, simple operation, free radical reaction enhanced effect

Active Publication Date: 2022-02-25
山东联科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that high-end electromagnetic shielding carbon black is difficult to carry out industrial production, the present invention creatively develops carbon black with electromagnetic shielding performance by changing the process conditions on the basis of the original carbon black production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add peroxybenzoic acid and ferrocene to coal tar, wherein the mass fraction of peroxybenzoic acid is 4‰ of coal tar, and the mass fraction of ferrocene is 2% of coal tar. Pass the prepared raw material oil into the high-temperature carbon black reaction furnace for carbonization treatment. The carbonization temperature is 1780°C. After the carbonization is completed, it is quenched by quenching water containing 2‰ hydrogen peroxide to generate carbon black with a certain amount of moisture. Granules, then enter the bag filter to collect carbon black, and finally dry it to prepare carbon black products with high electromagnetic shielding performance.

Embodiment 2

[0029] Add tert-butyl peroxy ketal and acetyl ferrocene to coal tar, wherein the mass fraction of tert-butyl peroxy ketal is 8‰ of coal tar, and the mass fraction of acetyl ferrocene is 8% of coal tar 4%. Pass the prepared raw material oil into the high-temperature carbon black reaction furnace for carbonization treatment. The carbonization temperature is 1800°C. After the carbonization is completed, it is quenched by quenching water containing 4‰ hydrogen peroxide to generate carbon black with a certain amount of moisture. Granules, then enter the bag filter to collect carbon black, and finally dry it to prepare carbon black products with high electromagnetic shielding performance.

Embodiment 3

[0031] Add peroxydicarbonate and benzoyl ferrocene to coal tar, wherein the mass fraction of peroxydicarbonate is 5‰ of coal tar, and the mass fraction of benzoyl ferrocene is 3% of coal tar . Pass the prepared raw material oil into a high-temperature carbon black reaction furnace for carbonization treatment. The carbonization temperature is 1820°C. After carbonization, it is quenched by quenching water containing 3‰ hydrogen peroxide to generate carbon black with a certain amount of moisture. Granules, then enter the bag filter to collect carbon black, and finally dry it to prepare carbon black products with high electromagnetic shielding performance.

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Abstract

The present invention relates to a kind of production method of the carbon black with electromagnetic shielding property, described production method comprises the following steps: (1) configure raw material oil: add peroxide and ferrocene or derivatives thereof in raw material oil, configure Reaction raw materials; (2) Spray the configured raw material oil into a high-temperature reaction furnace for carbonization treatment, and the carbonization temperature is 1700-1850°C; (3) After the carbonization is completed, pass through quenching water for quenching treatment to generate carbon black and collect carbon Black, the final product is obtained after drying. The electromagnetic shielding effect of the carbon black product prepared by the invention is good. At the same time, cheap and easy-to-obtain raw materials and simple production operations enable the product to be industrially produced in large quantities.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a production method of carbon black with electromagnetic shielding performance. Background technique [0002] With the rapid development of communication and electronic equipment, electromagnetic pollution is increasing, and electromagnetic wave protection materials are receiving more and more attention. Electromagnetic wave has become a new type of pollution after noise, water and air pollution, which not only affects the information security of communication equipment and the normal operation of electronic equipment, but also endangers human health. Due to the great harm of electromagnetic waves, our country has formulated a series of national standards to limit the intensity of electromagnetic waves in regulations. [0003] There are various forms of electromagnetic wave propagation, which can be plane waves, spherical waves, or in the form of beams, or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/48H05K9/00
CPCC09C1/48H05K9/0081
Inventor 殷鹏刚吴晓林吴晓强刘红亮刘彩艳
Owner 山东联科新材料有限公司
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