A kind of graphene/rubber composite material preparation method

Abstract

The invention belongs to the technical field of rubber wet mixing, and specifically relates to a method for preparing a graphene / rubber composite material. The process includes three steps of preparing a masterbatch mixture, preparing a masterbatch and preparing a composite material. First, the filler is stirred Pretreatment with ultrasonic atomization technology to form a filler emulsion, and then adopt the filler pre-dispersion sudden temperature crushing technology to spray the filler emulsion through high-pressure gas to the surface of a high-temperature object, and the filler emulsion is suddenly broken by heat. The secondary dispersion of the filler in the rubber matrix is ​​realized, and then the high-temperature flash drying technology is used to place the wet-mixed rubber prepared after the filler pre-dispersion is suddenly crushed and dispersed in a high-temperature environment to evaporate the water in it instantly. The cured filler is well dispersed in the rubber matrix, and finally the filler / rubber composite material is prepared by a conventional internal mixer; the principle is scientific and reliable, practical and convenient, the preparation efficiency is high, the application prospect is broad, and the use environment is friendly.

Description

Technical field: [0001] The invention belongs to the technical field of rubber wet mixing, and specifically relates to a graphene / rubber composite material preparation method, which uses a combination of graphene latex predispersion and wet mixing rubber drying technology to realize the uniform dispersion of graphene in latex and distribution to prevent the aggregation of graphene after dispersion, and obtain a graphene / rubber composite material with uniform distribution and good dispersion of graphene, excellent mechanical properties, and significantly improved comprehensive mechanical properties and dynamic mechanical properties. Background technique: [0002] With the continuous advancement of science and technology and the continuous development of material science, the materials used by human beings are also updated and improved. Polymer materials and their products have occupied various fields, industries and departments of life, as large as space shuttles. A certain p...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, solve the problem that graphene is difficult to disperse and easily agglomerate in the wet mixing process, and at the same time solve the glue caused by adding acid components to flocculate the mixed rubber in the wet mixing process. In order to solve the problems of poor material performance and other problems, a new wet mixing method and process was developed and designed, and the graphene is uniformly dispersed in the emulsion through the sudden temperature crushing technology of the graphene emulsion droplet pre-dispersion, reaching the nanoscale of graphene The degree of microscopic dispersion, through the high-temperature flash drying technology to achieve rapid drying of wet compound rubber, prevent the microscopic aggregation of graphene, and thus prepare high-performance wet compound rubber, providing high-performance rubber products for the preparation of high-performance tires and high-end rubber products practical way

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