Heat dissipating material and method for preparing the same

摘要

A heat dissipating material and a method for preparing the same, of which the method comprises the following steps: providing paraffin wax, boron nitride, graphite, and a modified multi-walled carbon nanotube; heating the paraffin wax until the paraffin wax is softened; and mixing the boron nitride, the graphite, the modified multi-walled carbon nanotube and the paraffin wax. Wherein, based on the total weight of the heat dissipating material, the content of the paraffin wax is from 50 to 60% by weight; the content of boron nitride is from 20 to 40% by weight; the content of the graphite is from 3 to 15% by weight; and the content of the modified multi-walled carbon nanotube is from 1 to 5% by weight.

主权项

1. A heat dissipating material, comprising:
50 to 60% by weight of paraffin wax; 20 to 40% by weight of boron nitride; 3 to 15% by weight of graphite; and 1 to 5% by weight of a modified multi-walled carbon nanotube with a surface ester group (—COOR); wherein the paraffin wax absorbs or releases heat through phase change, and the boron nitride and the graphite increase the thermal conductivity of the heat dissipating material, and wherein the modified multi-walled carbon nanotube is a octadecanol-modified multi-walled carbon nanotube (CNT-C18).