Modified carbon black particle and preparation method and application thereof

A technology for modifying carbon black and carbon black particles, which is applied in dyeing physical treatment, fibrous fillers, etc. It can solve the problems of increased thickness of graphene sheets, difficulty in dispersion, and generation of smoke, so as to prevent agglomeration and uniform dispersion , saving time and cost

Inactive Publication Date: 2019-06-14
JINAN SHENGQUAN GROUP SHARE HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It has the characteristics of excellent performance and quality, low cost, high efficiency, and less pollution, but the method is very complicated to operate, and smoke will be generated, and graphene may be agglomerated in carbon black powder, resulting in increased sheet thickness of graphene , is not conducive to the improvement of electrical conductivity, and there are difficulties in the dispersion liquid in polymer materials

Method used

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  • Modified carbon black particle and preparation method and application thereof
  • Modified carbon black particle and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The present embodiment provides a kind of preparation method of modified carbon black particle, concrete steps are as follows:

[0047] (1) preparation double-layer graphene concentration is the aqueous solution of 5%, adds 0.2% lignosulfonate dispersant, evenly disperses, obtains double-layer graphene dispersion liquid (pH is 7), the multi-layer graphene solution is mixed with The carbon black granulation water that molasses concentration is 50% is mixed according to volume ratio 2:1, obtains mixed solution (wherein the concentration of bilayer graphene is 3.3%, and the concentration of described molasses is 16.7%);

[0048] Wherein, the thickness of the bilayer graphene sheet is 2nm.

[0049] (2) The mixed solution is atomized and sprayed into the granulation bin under the pressure of 0.4MPa, and the pyrolytic carbon black powder is added into the granulation bin under the action of the induced draft fan for granulation, Control the volume ratio of the mixed solution...

Embodiment 2

[0053] The difference from Example 1 is that in step (1), an aqueous solution with a double-layer graphene concentration of 2.5% is configured.

[0054] Compared with the unmodified carbon black particles, the resistance of the modified carbon black particles was reduced by 30.5%.

Embodiment 3

[0056] The difference from Example 2 is that pyrolytic carbon black is replaced by conductive carbon black.

[0057] Compared with the unmodified carbon black particles, the resistance of the modified carbon black particles was reduced by 25.5%.

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Abstract

The invention relates to a modified carbon black particle and a preparation method and application thereof. A carbon nanomaterial is added in the carbon black pelletizing process, and the modified carbon black particle is obtained after pelletizing; the carbon nanomaterial comprises a graphene material and / or carbon nanotubes; the particle diameter of the modified carbon black particle is 1-5 mm;and the modified carbon black particle is adopted as a reinforcing agent of a conductive filler or heat conduction or tire rubber. According to the preparation method, the carbon nanomaterial can be evenly dispersed in carbon black, electric conductivity of the carbon black is improved to the greatest extent, and subsequent dispersity during mixing with a polymer material is also facilitated.

Description

technical field [0001] The invention relates to the technical field of carbon materials, in particular to a modified carbon black particle and its preparation method and application. Background technique [0002] Carbon black is a particle-like structure with a nanoscale. The particle size of carbon black is generally 50-300nm. An important use of carbon black is to reinforce rubber. In rubber products, carbon black plays a role in filling and reinforcing role. After filling with carbon black, it can improve the strength, blackness or conductivity of the matrix material. The particles of carbon black have a certain degree of aggregation. In the production of carbon black, carbon black is granulated with lignin and binder to form carbon black particles, which is beneficial to the subsequent use in the fields of packaging, transportation and processing. [0003] In order to further improve the conductivity of carbon black, high-conductivity carbon materials such as graphene,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/56C09C3/04C08K9/08C08K3/04
Inventor 唐磊郑应福李华民刘亚萍张御妹马洁
Owner JINAN SHENGQUAN GROUP SHARE HLDG
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