Graphene two-stage microwave production equipment

Abstract

The invention belongs to the technical field of graphene preparation, in particular to graphene two-stage microwave production equipment. The graphene two-stage microwave production equipment comprising a cavity, a feed inlet, a fixed frame, a rotating shaft and fan blades is characterized in that the graphene two-stage microwave production equipment also comprises a microwave transmitter 1, a two-stage graphene stripping module and an annular filter plate; a blanking mouth is opened on the lower end of the cavity; the feed inlet is mounted on the upper portion of the cavity; the microwave transmitter 1 is mounted on the lower surface of the inner portion of the cavity; the annual filter plate is used for taking away the graphene stripped from the microwave transmitter 1; the two-stage graphene stripping module is used for stripping graphite from the graphene again; the fixed frame is mounted on the lower end of the cavity; the rotating shaft is rotatably mounted on the fixed frame. The graphene two-stage microwave production equipment has the advantages that with microwave radiation to strip the graphite twice, the graphene obtained by stripping is highly fluffy; with graphene finished products not containing organic functional groups, quality of graphene products is improved; with a microwave radiator 2 in spiral arrangement and used as a baffle to place a graphite shake-offplacement board, the graphite is completely stripped.

Description

technical field [0001] The invention belongs to the technical field of graphene preparation, in particular to a two-stage microwave production equipment for graphene. Background technique [0002] Graphene is an ultra-thin material with a single carbon atom thickness arranged in a two-dimensional honeycomb structure. Graphene has rich physical properties, with a specific surface area of ​​2600m2 / g; excellent mechanical properties, breaking strength up to 42N / m2, tensile strength and elastic modulus of 130GPa and 1.0TPa respectively, and elastic extension up to 20%; thermal conductivity Well, it is as high as 5300W / (m·K) at room temperature; the transparency is high, and the light absorption rate is only 2.3%. At the same time, graphene also has excellent electrochemical properties, and its electron mobility exceeds 15000cm2 / (V·s) at room temperature, which is higher than that of carbon nanotubes. Graphene has become a research hotspot because of its unique structure and ex...

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Problems solved by technology

However, the speed of graphite separation by this equipment is slow, and the production capacity is low. Graphene peeling is done in batches instead of continuous production, and the graphite vibrates on the placement plate and easily slips off. Graphite cannot be completely peeled into graphene.

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