Flexible nano-carbon composite material high-temperature electric heating film and preparation method thereof

Abstract

The invention relates to a high-temperature electric heating film of a flexible nano-carbon composite material and a preparation method of the high-temperature electric heating film. The high-temperature electric heating film is prepared from electric heating film slurry and glass fiber cloth; the high-temperature electric heating film is characterized in that the electric heating film slurry is prepared from a solid material and a solvent at the mass percent of (20%-40%):(80%-60%), wherein the solid material is prepared from graphite of which the particle sizes are within 50nm, carbon black, silver, zinc oxide and a rare-earth material at the mass ratio of 5:2:1:2:0.5; and the solvent comprises xylene, dimethylformamide, polyamide ester and a polyimide polymer solution at the mass ratio of 1:4:1:4. The problems of poor high temperature resistance, flame retardant property and film adhesion in raw materials are solved. The electric heating film has good high-temperature (400 DEG C) uniformity, high heating efficiency and good performance and stability.

Description

technical field [0001] The invention relates to a heating film, in particular to a flexible nano-carbon composite material high-temperature electric heating film and a preparation method thereof. It belongs to the field of composite materials. Background technique [0002] The application of nanocomposite materials is the leading high-tech in the 21st century, and clean, environmentally friendly and efficient electric heating materials are the common goal. The micro-electrical heating material increases the heat exchange rate between electric heating and air in the convection electric heating device, makes the radiant heating electric heating device heat up quickly, and has high temperature synchronization accuracy, which increases the effective space of the thermal process environment and expands the work efficiency. Comprehensive utilization of the advantages of new micro-electrothermal materials combined with the structural improvement of mechanical equipment will create...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a flexible nano-carbon composite material high-temperature electric heating film and its preparation method. The present invention solves the problems of high temperature resistance, flame retardancy, and poor adhesion of the film layer on the raw materials.

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