Preparation method of white carbon black/rubber composite

Abstract

The invention belongs to the technical field of rubber wet mixing, and particularly relates to a preparation method of the white carbon black/rubber composite. The technological process comprises three steps of masterbatch mixed liquor preparation, masterbatch preparation and composite preparation. The preparation method comprises the following steps: carrying out pretreatment such as stirring and ultrasonic atomization on fillers to form filler emulsion firstly, next, adopting a sudden temperature crushing technology on filler pre-dispersion, spraying out the filler emulsion through high pressure gas, spraying the filler emulsion on the surface of a high-temperature object, thereby crushing the filler emulsion drop by sudden heating, and realizing secondary dispersion of the filler in the rubber matrix. By adopting the high-temperature flashing drying technology, the wet method mixed rubber prepared from filler pre-dispersion subjected to the sudden temperature crushing technology is placed into high-temperature environment to evaporate moisture instantly, the solid filler is excellently dispersed into the rubber matrix, and finally a traditional internal mixer is adopted to prepare the filler/rubber composite. According to the invention, the principle is scientific and reliable, the implementation is simple and convenient, the preparation efficiency is high, the application prospect is wide and the use environment is friendly.

Description

Technical field: [0001] The invention belongs to the technical field of rubber wet mixing, and in particular relates to a preparation method of white carbon black / rubber composite material, which uses a combination of white carbon black latex predispersion and wet mixing rubber drying process to realize white carbon black in latex The uniform dispersion and distribution of silica can prevent the aggregation of silica after dispersion, and the silica / rubber composite material with uniform and well-dispersed silica, excellent mechanical properties, and significantly improved comprehensive mechanical properties and dynamic mechanical properties can be obtained. 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 s...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, solve the problem of difficult dispersion and easy agglomeration of white carbon black in the wet mixing process, and simultaneously solve the problems caused by adding acidic components to flocculate the mixed rubber in the wet mixing process. In order to solve problems such as the deterioration of rubber properties, a new wet mixing method and process has been developed and designed, and the uniform dispersion of silica in the emulsion can be achieved through the sudden temperature crushing technology of silica emulsion droplet pre-dispersion to achieve silica The nano-scale microscopic dispersion of black, through the high-temperature flash drying technology to achieve rapid drying of wet compound rubber, prevent the microcosmic aggregation of silica, thereby preparing high-performance wet compound rubber, for high-performance tires, high-end rubber The formulation of products provides a practical way

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