Graphene/carbon fiber enhanced nylon composite wear-resistant material and preparation method and application thereof

Abstract

Disclosed are a graphene / carbon fiber enhanced nylon composite wear-resistant material and a preparation method and application thereof. The material includes a nylon resin, carbon fibers, graphene / nylon 6 master batch, an organic lubricant, an inorganic solid lubricant, a coupling agent and an anti-oxidant. The method comprises: (1) coupling the inorganic solid lubricant with the coupling agent to obtain a coupled inorganic solid lubricant; (2) mixing graphene / nylon 6 master batch, the organic lubricant, the coupled inorganic solid lubricant and the anti-oxidant; and (3) sending the nylon resin and a mixing auxiliary agent to an extruder, adding carbon fibers, performing mixing extrusion, and performing strap stretching, cooling, drying, and grain-sized dicing to obtain the material. The material is used for lubricating bearings and joint bearings of automobiles, and transmission gears of textile, food and packaging machinery or joint bearings of robots. The material is high in strength, good in thermal conductivity, self-lubrication, and wear resistance, and is long in service life. The method is simple and is suitable for industrial production.

Description

Technical field [0001] The invention relates to a wear-resistant material and a preparation method and application, in particular to a graphene / carbon fiber reinforced nylon composite wear-resistant material, and a preparation method and application. Background technique [0002] Transmission components are the key components of mechanical equipment. In the early last century, most of my country’s mechanical transmission components were made of metal materials. Since the 1990s, it was discovered that cast nylon 6 gears had self-lubricating properties. It needs butter lubrication, and its noise is much lower than that of metal gears. The transmission gears of textile machinery and other light industrial machinery have begun to use cast nylon 6, which reduces the noise in the textile workshop; and in the manufacturing of food and medical machinery, the use of poly Formaldehyde is used for gears and lubricating bearings. Although these materials have excellent wear resistance and sel...

AI Technical Summary

Problems solved by technology

However, they all have the same defect: 1) Since graphene and nylon are directly blended, the dispersion of graphene in nylon resin cannot be realized; 2) the above method mainly considers improving the thermal conductivity of nylon, and does not involve how to improve the resistance of nylon. The problems of abrasiveness and mechanical properties, and the use of the obtained materials are not clear

However, its friction coefficient and wear are relatively high, which still cannot meet the basic requirements of bearings.

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