A gr-sio2/nbr material preparation method and ball mill assembly

Abstract

The invention discloses a GR‑SiO 2 / NBR material preparation method, put silicon dioxide into and deionized water to grind into silicon dioxide water dispersion, adjust the pH value with sodium hydroxide solution, seal the ultrasonic in ice water bath; use deionized water to configure cetyl-three The methyl bromide aqueous solution is mixed with the silica aqueous dispersion, and forms a surface modified silica slurry under high-speed shearing; to the surface modified silica slurry, add toluene solution, toluene sulfur and poly Ethylene glycol is actually mixed, and a small amount of methanol solution is added after heating to reflux to form a chemically modified silica slurry; the silica slurry is filtered and rinsed and placed in a beaker; then an appropriate amount of deionized water is added to stir and GR aqueous solution is added. and add concentrated nitrile latex to GR‑SiO 2 In the mixed solution, GR‑SiO 2 / NBRL mixed solution, the mixed solution is heated and poured into the container tank, the mixed solution is sprayed onto the high-temperature roller, dried into masterbatch, put the masterbatch into the open mill and mixed through the roller for three times, physical and chemical modification , which is more structural.

Description

technical field [0001] The invention relates to the field of rubber mixing, specifically a GR-SiO 2 / NBR material preparation method and ball milling components. Background technique [0002] Mixing is the first step in the rubber processing process, and it is also the most critical process. Through this process, various fillers are fully mixed with rubber, and the fillers are dispersed as uniformly as possible. The quality of the mixing result directly determines the rubber product. The performance and service life have been widely concerned by the industry. [0003] Graphene (GR) is a material in the carbon family. It is a two-dimensional nanomaterial with a carbon atom hybridization type of sp2 carbon structure and a single-layer structure obtained after graphite processing. GR has ultra-thin sheets. Structure, huge specific surface area, its internal structure is a honeycomb layered structure, with excellent mechanical, thermal, mechanical and electrical properties, so...

AI Technical Summary

Problems solved by technology

But SiO 2 There are a lot of hydroxyl groups on the surface, the compatibility with rubber is not good, SiO 2 The interaction with the rubber is weak, and when it is filled into the rubber, the wear resistance is obviously reduced

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