Preparation method of expandable graphite based composite material

Preparation method of expandable graphite based composite material

CN
  • CN 102,553,571 B
  • Filed: 12/08/2010
  • Issued: 10/09/2013
  • Est. Priority Date: 12/08/2010
  • Status: Active Grant
First Claim
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1. an expanded graphite-based composite material preparation method comprises the steps:

  • Absolute ethyl alcohol is mixed the preparation mixed solution with red fuming nitric acid (RFNA);

    Wherein, the volume ratio of described absolute ethyl alcohol and red fuming nitric acid (RFNA) is 60;

    1~

    10;

    Add manganese salt solution and crystalline flake graphite in described mixed solution, preparation contains the suspension of manganese ion;

    The described suspension that contains manganese ion is carried out hydro-thermal reaction under 100~

    200 ℃

    ;

    To carry out Separation of Solid and Liquid after the formed product cooling of described hydro-thermal reaction, and collect solid;

    With described solids wash, drying, calcining, cooling obtains described expanded graphite-based composite material.

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