| abstract |
To improve heat resistance, thermal stability, heat dissipation and adhesion, the present invention is provided with a polymer solution containing carboxymethyl cellulose and a coagulation aid containing polyethyleneimine, carboxymethyl cellulose in the polymer solution and polyethyleneimine in the coagulation aid A first step in which a polymer base is produced by mixing and crosslinking in a ratio of 4.5 to 5.5:1 by weight, wherein a silver-carbon nanotube composite is stirred and dispersed in the polymer base to prepare a crosslinked polymer nanocomposite heat dissipation composition; The polymer nanocomposite heat dissipation composition is applied to the upper surface of the base film, which is rotated through a first transfer roller and a second transfer roller provided at the front and rear ends in the transfer direction, and the tension is controlled during transfer by a plurality of tension rollers. While passing through the complex hardening chamber provided between the first transfer roller and the second transfer roller, a second step of being dried and cured by lamination into a polymer nanocomposite layer; and a third step in which the polymer nanocomposite layer is separated from the base film and manufactured into a heat dissipation sheet. |