METHOD FOR PRODUCING HEAT CONDUCTION COMPOSITE MATERIAL INCLUDING COVALENTLY BONDED CARBON NANOTUBES AND HEAT CONDUCTION COMPOSITE MATERIAL PRODUCED USING SAME

摘要

The present invention relates to a method for producing a heat conduction composite material including covalently bonded carbon nanotubes, wherein the method comprises the steps of: preparing carbon nanotubes, a covalent bond inducing material, and a solvent; dispersing the carbon nanotubes in the solvent; producing a covalent bond inducing solution by dissolving the covalent bond inducing material in the solvent; performing a covalent bond reaction by adding the covalent bond inducing solution in the dispersed carbon nanotubes; filtering the covalently bonded carbon nanotubes; and drying the filtered covalently bonded carbon nanotubes. In the present invention, through a method for inducing a covalent bond between carbon nanotubes and a convenient filtering device, a composite material including covalently bonded carbon nanotubes is produced, so that a heat spreader product having high heat conduction in a horizontal direction can be produced using the same. In the present invention, most processes are performed at 100C or less, so that additional costs generated due to the expansion of a device during a high temperature process can be reduced and the processes can be rapidly and conveniently performed. Furthermore, a mat can be rapidly produced, and a produced part can be productized without damage, so that the same can be appropriately mass-produced to be industrialized.;COPYRIGHT KIPO 2015