Machining medium for preparing graphene, graphene composite material and graphene preparation method

Machining medium for preparing graphene, graphene composite material and graphene preparation method

  • CN 104,889,411 B
  • Filed: 05/18/2015
  • Issued: 06/12/2020
  • Est. Priority Date: 05/18/2015
  • Status: Active Grant
First Claim
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1. A method for preparing a metal-based graphene composite material is characterized by comprising the following steps:

  • comprises the following steps;

    a. putting metal and raw material graphite into machining equipment;

    b. machining by adopting a machining mode with a rolling effect;

    c. discharging to obtain the metal-based graphene composite material;

    the metal has required plasticity, the elongation at break is more than 2%, the metal is a metal powder material, and the fineness of the metal powder material is equivalent to that of raw material graphite for obtaining graphene;

    the mechanical processing adopts ball milling, the volume ratio of ball materials is 3-100;

    1, and the volume ratio of raw material graphite to metal powder materials in the raw materials is 1;

    0.2 to 30;

    in the step a, the mechanical processing equipment is closed and protected by inert gas or vacuum;

    in the ball milling, the filling rate of a ball milling tank is not more than 50 percent;

    the ball milling time is 1-100 h.

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