Process method for preparing high-performance carbon black masterbatch

Abstract

The invention provides a process method for preparing high-performance carbon black masterbatch, relating to the technical field of carbon black masterbatch preparation processes. The wet-method carbon black masterbatch preparation process method provided by the invention is simple in process, low in energy consumption and excellent in performance. The method comprises the steps: soaking non-granulated carbon black powder in an aqueous solution of a micromolecular volatile solvent, so as to prepare uniformly-dispersed carbon black slurry; flocculating out masterbatch and carbon black at a certain stirring linear speed without adding other flocculating agents, filtrating and drying. The carbon black in the masterbatch prepared by the method disclosed by the invention reaches nano dispersion, vulcanized rubber has the advantages of excellent mechanical property, good resilience, low heat generation and high wear resistance, the preparation process is simple, the equipment investment is small, the energy consumption is low, the cost is low, the method is environmental-friendly, and the influence on the performance of the rubber and the pollution to the environment, caused by a surfactant, a flocculating agent and the like, are avoided.

Description

technical field [0001] The invention relates to the technical field of preparation technology of carbon black masterbatch, in particular to a process method for preparing carbon black masterbatch by wet method. Background technique [0002] So far, carbon black is still an irreplaceable reinforcing agent in the rubber industry, and its excellent comprehensive reinforcing performance cannot be achieved by other reinforcing agents. In industrial production, carbon black masterbatch is often prepared by dry method. Dry mixing has some disadvantages, such as poor dispersion of carbon black, low utilization rate, and the rubber molecular chain is easily broken during mixing, which causes over-mixing. , which has a serious impact on the properties of the rubber. [0003] In view of the shortcomings of dry mixing, people try to overcome these shortcomings by preparing masterbatches by wet mixing. Wet mixing generally includes spray drying method, emulsion flocculation method and ...

AI Technical Summary

Problems solved by technology

This process works well, but the equipment is complex and the method has been bought out and is not available in the market

[0004] The key to the preparation of carbon black masterbatch by wet method is the preparation of carbon black slurry. Now most of the carbon black particles are prepared by mechanical crushing, such as grinding, ultrasonic, etc., to prepare carbon black slurry, which consumes a lot of energy, and the final dispersion particle size of the prepared carbon black is relatively large. Lead to poor dispersion of carbon black and poor performance

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