Method for preparing slurry from carbon black through dry treatment

A technology for preparing slurry and dry treatment is applied in the field of preparing carbon black slurry, which can solve the problems of poor carbon black dispersibility and unenvironmental protection of carbon black dyeing, and achieve the effect of long-term storage.

Inactive Publication Date: 2018-03-09
QINGDAO BLACK CAT CARBON BLACK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of poor dispersibility of carbon black and non-environmental protection in carbon black dyeing in the prior art, the invention provides a method for preparing slurry by dry processing of carbon black

Method used

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  • Method for preparing slurry from carbon black through dry treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] After the carbon black is pulverized by a low-speed pulverizer and ground by a grinder, the surface grafting treatment is carried out with the boric acid ester at a mass ratio of 100:0.5, so that the carbon black changes from hydrophobicity to hydrophilicity; the grafting treatment process includes: Stir and mix in a branch tank, the temperature is 150°C, the pressure is 0.1MPa, the rotation speed is 1000r / min, and the time is 2h.

[0016] The treated carbon black is added with distilled water at a concentration of 30%, and mixed in a mixer, and the mixed solution containing carbon black is emulsified in a high-speed shear machine, and the speed of the high-speed shear machine is above 5000r / min.

Embodiment 2

[0018] After the carbon black is pulverized with a low-speed pulverizer and ground by a grinder, the surface grafting treatment is carried out with the methyl oleic acid ester in a mass ratio of 100:10, so that the carbon black changes from hydrophobicity to hydrophilicity; the grafting treatment process includes : stirring and mixing in a grafting tank, the temperature is 250° C., the pressure is 0.5 MPa, the rotation speed is 300 r / min, and the time is 6 hours.

[0019] The treated carbon black is added with distilled water at a concentration of 5%, and mixed in a mixer, and the mixed solution containing carbon black is emulsified in a high-speed shear machine, and the speed of the high-speed shear machine is above 5000r / min.

Embodiment 3

[0021] After the carbon black is pulverized by a low-speed pulverizer and ground by a grinder, the surface is grafted with a mixture of titanate and aluminate in a mass ratio of 100:5, so that the carbon black changes from hydrophobicity to hydrophilicity; grafting The treatment process includes: stirring and mixing in the grafting tank, the temperature is 200° C., the pressure is 0.3 MPa, the rotation speed is 600 r / min, and the time is 4 hours.

[0022] The treated carbon black is added with distilled water at a concentration of 17%, and mixed in a mixer, and the mixed solution containing carbon black is emulsified in a high-speed shear, and the speed of the high-speed shear is above 5000r / min.

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Abstract

The invention relates to the technical field of preparation of carbon black slurry and discloses a method for preparing slurry from carbon black through dry treatment. The method comprises the following steps: performing surface grafting treatment on crushed and ground carbon black in the presence of a modifier, thereby changing the hydrophobic carbon black to hydrophilic one; and adding distilledwater into the carbon black subjected to surface grafting treatment for mixing, and performing emulsification treatment on a carbon black solution obtained by mixing in a shearing machine, thereby finally forming uniform carbon black slurry. According to the preparation method, carbon black can be well dispersed into rubber, and shows characteristics of nanometer materials; and moreover, the carbon black slurry prepared by the method disclosed by the invention can serve as black water-soluble environmental-friendly carbon black slurry for various dyeing, and can be stored without any precipitate for a long time.

Description

technical field [0001] The invention relates to a method for preparing carbon black slurry, in particular to a method for preparing slurry by dry processing of carbon black. Background technique [0002] Carbon black is composed of carbon, but it is usually classified as inorganic pigments. Carbon black is a black powdery substance formed by incomplete combustion or thermal decomposition of hydrocarbons in the gas phase. Due to different production processes, various process conditions can be obtained. A variety of products with different properties, according to the performance of carbon black, there are "reinforcing carbon black", "conductive carbon black", "wear-resistant carbon black", etc., and can also be used as black dyes for the manufacture of Chinese inks, printing inks, paints, etc. It is also used as a reinforcing agent for rubber. The smaller the particle size of ordinary carbon black, the better its mechanical properties, and the larger the surface area, the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K3/04C08L21/00
CPCC08K9/04C08K3/04C08L21/00
Inventor 王宏安鲁
Owner QINGDAO BLACK CAT CARBON BLACK TECH
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