The invention relates to a far-
infrared anion carbon
crystal electric-heating warm-keeping
composite material and a preparation method thereof, and specifically provides a far-
infrared anion carbon
crystal electric-heating warm-keeping
composite material and a preparation method thereof. The far-
infrared anion carbon
crystal electric-heating warm-keeping
composite material aims to solve problems that an electric-heating warm-keeping material of the prior art has uneven heat
radiation and poor
environment effect and the like, and is used for manufacturing electric-heating plates for warm-keeping. The far-infrared anion carbon crystal electric-heating warm-keeping composite material comprises the following ingredients in percentage by weight: 70-95% of paper pulp, 2-20% of carbon nano
fiber, 2-5% of nano far-infrared anion
powder, and 1-5% of diffusant. According to the invention, a conductive composite material is prepared by using the paper pulp, carbon nano
fiber, nano far-infrared anion
powder and diffusant as raw materials through working procedures of pulping, beating, pulp mixing, paper making,
drying, up-coiling and the like. A working procedure of
mixed feeding during the beating procedure is added, that is, the carbon nano
fiber, the diffusant and the nano far-infrared anion
powder are added into the paper pulp uniformly. The invention has functions of far-
infrared transmission and anion emission simultaneously, and harmful charges can be released effectively, thereby realizing effects of purification, sterilization and environment protection.