▎ 摘　　要

NOVELTY - Manufacturing positive temperature coefficient (PTC) heating film involves (i) adding granules of polymer base material and conductive filler into a banburying machine for mixing to obtain PTC material, (ii) forming an anisotropic conductive film (ACF) film on a metal foil, (iii) attaching the PTC film material to the ACF membrane by hot-pressing process, (iv) etching the metal foil into a finger electrode shape by etching process to obtain a PTC membrane material with metal electrode, (v) cutting the metal electrode into a special specification shape by die-cutting technique, (vi) welding the lead on the finger-inserting electrode, and (vii) using heat-conducting insulating film to package the two sides of the PTFE film material with a metal electrode and exposing the lead to obtain the PCT heating film. USE - Method for manufacturing polymer-based PTC heating film.