▎ 摘　　要

NOVELTY - A heat absorbing film preparing method involves dissolving a hydrophilic graphene and a hydrophilic carbon nanotube in water at a mass ratio of 2: 1, where the sum of the mass of the hydrophilic graphene and the hydrophilic carbon nanotubes is 0.1-1 wt.%, followed by adding 1-12 wt.% polyethylene solution to the mixed solution, stirring mixture at 40-80 degrees C for 0.5-2 hours, and 0.01-0.01 MPa for 24-48 hours to obtain the absorbing film. USE - Method for preparing heat absorbing film. ADVANTAGE - The film has better absorbing performance and certain toughness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a heat absorbing film prepared by the method.