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...

Examples

Embodiment 1

[0021]The preparation method of the silica / rubber composite material involved in this embodiment is also called the atomization drying method, and its process includes three steps of preparing the masterbatch mixture, preparing the masterbatch and preparing the composite material:

[0022] (1) Preparation of masterbatch mixture: first prepare modified graphene oxide aqueous solution: graphene oxide powder and water are ultrasonicated for 15min-12h at a temperature of 25-100°C and a power of 500-1500W to prepare graphene oxide Aqueous solution, the content of graphene oxide in the graphene oxide aqueous solution is 1-10mg / ml, adding γ-aminopropyltriethoxysilane (KH-550) to the deionized water of set quality and diluting to a mass percentage concentration of 0.5-2% KH-550 aqueous solution, add graphene oxide aqueous solution to KH-550 aqueous solution to form a mixed solution, ultrasonically disperse the mixed solution at room temperature for 10-30min, and then place the mixed so...

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...

Examples

Embodiment 1

[0021]The preparation method of the silica / rubber composite material involved in this embodiment is also called the atomization drying method, and its process includes three steps of preparing the masterbatch mixture, preparing the masterbatch and preparing the composite material:

[0022] (1) Preparation of masterbatch mixture: first prepare modified graphene oxide aqueous solution: graphene oxide powder and water are ultrasonicated for 15min-12h at a temperature of 25-100°C and a power of 500-1500W to prepare graphene oxide Aqueous solution, the content of graphene oxide in the graphene oxide aqueous solution is 1-10mg / ml, adding γ-aminopropyltriethoxysilane (KH-550) to the deionized water of set quality and diluting to a mass percentage concentration of 0.5-2% KH-550 aqueous solution, add graphene oxide aqueous solution to KH-550 aqueous solution to form a mixed solution, ultrasonically disperse the mixed solution at room temperature for 10-30min, and then place the mixed so...

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