▎ 摘　　要

NOVELTY - The method involves using the electrostatic flocking process, planting the graphene short fiber on the substrate, and preparing the short fiber array with high density and high orientation. The diameter of the graphene short fiber is more than 5um, and the conductivity is more than preset value. The substrate is comprised of a stretchable substrate. The static flocking is carried out in the stretching state. The stretching force is released after the static flocking is finished, and the static flocking is naturally retracted. The electrostatic flocking is comprised of prior low electric field stage and a post high electric field stage. The electric field intensity of the low electric field stage is less than the electric field intensity of the high point field stage. USE - Preparation method of high density and high orientation short fiber array of heat-conducting cushion (claimed). ADVANTAGE - The method skillfully combines the high conductivity of graphene short fiber, high heat conduction, light and high strength of special and electrostatic flocking process device mature, the operation is simple, the raw material is easy to obtain, the advantage of mass production, obtaining high density and high orientation of short fiber array, flocking density can reach 30.12 mg/cm2, the orientation degree reaches 0.82, and can ensure the fiber orientation angle of more than 70% is between 80-90 degrees based on the short fiber arrays with high density. The method can obtain a heat conducting pad, the heat conducting performance can reach 42.08 W/mK, and has wide application prospect in the heat interface material field. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene composite heat conducting pad with high vertical thermal conductivity. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the preparation method of high density and high orientation short fiber array. (Drawing includes non-English language text)