Production method of high-pigment carbon black for plastic master batch color paste

Abstract

The invention relates to the field of carbon black production, in particular to a production method of high-pigment carbon black for plastic master batch color paste, which comprises the following steps of: bringing a post-treatment process into a carbon black production process, adding an energy ball mill on a carbon black production line, adding a coupling agent and a dispersing agent into ungranulated carbon black, and uniformly mixing to obtain a mixture; the preparation method comprises the following steps: uniformly mixing carbon black with a coupling agent and a dispersing agent by utilizing a ball mill, crushing the carbon black by utilizing the energy of an energy ball mill, cross-linking with the coupling agent, and coating the dispersing agent on the surfaces of carbon black particles to prepare the pigment carbon black for color master batch and color paste. The product has the advantages of good fluidity, good dispersion, small fineness, lipophilicity and hydrophilicity, and the particle size, aggregate distribution and the like of the product reach the optimal state.

Description

technical field [0001] The invention relates to the field of carbon black production, in particular to a production method of high-pigment carbon black for plastic masterbatch color paste. Background technique [0002] According to incomplete statistics, the average annual growth rate of demand for pigment carbon black for color masterbatch in other countries in Asia is about 7%-9%, and the average annual growth rate for color masterbatch pigment carbon black in China is about 20%. . China is the market with the fastest growing demand for color masterbatch pigment carbon black, but the pigment carbon black used in high-grade black masterbatch still relies on imports. In my country, the proportion of high-concentration and ultra-high-concentration pigment carbon black, multifunctional color masterbatch carbon black and color masterbatch carbon black for fine fibers is relatively small. Compared with developed countries, there is still a certain gap. With the development of ...

AI Technical Summary

Problems solved by technology

The traditional pigment carbon black production method is to granulate, dry, and package the carbon black on the carbon black production line. After the packaging is completed, it is sent to another factory or workshop for treatment. The treatment method is ozone oxidation or nitric acid acidification. The surface of carbon black is oxidized or acidified, acidic groups are formed on the surface of carbon black, and the hydrophilicity or lipophilicity of carbon black is increased. These two methods of processing carbon black will cause different degrees of environmental pollution

[0003] The research shows that: when the pigment carbon black is treated by the ozone oxidation method, the degree of surface oxidation of the carbon black is relatively low. There are few oxygen-containing functional groups on the surface of black, and there is dust pollution and exhaust gas pollution during the treatment process; while the nitric acid acidification method treats carbon black with a relatively high degree of acidification, and there are more acid groups on the surface of carbon black, but because nitric acid is a strong acid, it is harmful to equipment. The corrosion is serious, and the treated carbon black is red phase, which affects the appearance of the product

And nitric acid is easy to disperse at high temperature, and argon gas will be decomposed during the treatment process. Argon gas will stimulate the nervous system of humans and animals, make people insane, and damage the vegetation around the processing plant. The treated nitric acid waste liquid cannot deal with

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