▎ 摘　　要

NOVELTY - Directional radiating composite adhesive film comprises a fluorine-silicon release film (1), a columnar graphene array (2), a graphite heat conducting film (3) and a Polyethylene terephthalate (PET) protective film (4) with glue. The columnar graphene array is vertically solidified on the inner side of the graphite heat conducting film. The PET protective film with glue is tightly adhered to the outer side of the graphite heat conducting film. The fluorine- silicon release film is tightly adhered to the outer side of the columnar graphene array. USE - Used as directional radiating composite adhesive film. ADVANTAGE - The film has directional heat transfer and rapid heat equalization effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing a directional radiating composite adhesive film, comprising (i) mixing 18-25 pts. wt. graphene oxide and 10-12 pts. wt. N,N-dimethylformamide at 30-45 degrees C for 1 hour to obtain a uniform graphene oxide dispersion, adding 27-32 pts. wt. 1,6-hexanediamine into the above graphene oxide dispersion, stirring mechanically continuously for 1 hour, adding 0.5-1.2 pts. wt. coupling agent, transferring the mixture into a 60 degrees C water bath, stirring evenly, refluxing, condensing for 6 hours for reacting, centrifuging the obtained sample for washing and drying in a vacuum environment to obtain amino functionalized graphene oxide; (ii) mixing 3-5 pts. wt. amino-functionalized graphene oxide prepared in step (i), 1.5-2.1 pts. wt. carboxy functionalized Fe3O4 magnetic nano particles and 20-30 pts. wt. water, adding 0.2~0.25 pts. wt. N,N'-diisopropylcarbodiimide crosslinking agent and 0.1~0.15 pts. wt. compatibilizer into the mixture, reacting at room temperature for 20-24 hours, centrifuging and drying to obtain magnetic graphene; and (iii) mixing 2-3 pts. wt. magnetic graphene prepared in step (ii), 60-65 pts. wt. light-curing prepolymer, 25-35 pts. wt. active monomer and 1 pts. wt. initiator uniformly under nitrogen protection, coating precisely on the surface of the graphite thermal film, adding quickly under the mask with sequential circular holes, applying a magnetic field along the Z axis direction and carrying out the light curing reaction at the same time and solvent etching to remove the unpolymerized prepolymer on the surface of the graphite thermal conductive film to obtain a graphite thermal conductive film containing the columnar graphene array; and (iv) separating prepared the columnar graphene array side and the graphite thermal conductive film side of the graphite thermal conductive film containing the columnar graphene array prepared in step (iii) respectively from the fluorosilicon release film and bonding adhesive PET protective film tightly. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic representation of directional radiating composite adhesive film. Fluorine-silicon release film (1) Columnar graphene array (2) Graphite heat conducting film (3) Polyethylene terephthalate protective film (4)