Patent ID: 9689446
Date: 2017-06-27
CPC Classifications: B29B,B32B,D04H,D06B,F16D

Claim:
1. A method of manufacturing a three dimension preform having high thermal conductivity, comprising: a first step of manufacturing unidirectional carbon fabrics from a heat resistant fiber; a second step of putting the unidirectional carbon fabrics into an aqueous solution with carbon nanomaterial contained in a vessel; a third step of taking the unidirectional carbon fabrics out of the vessel and then drying the unidirectional carbon fabrics; a fourth step of three to five times repeating the second step and the third step; a fifth step of stacking the unidirectional carbon fabrics with web carbon fabrics, which are made of a heat resistant fiber, inserted between the unidirectional carbon fabrics; and a sixth step of punching the stacked unidirectional carbon fabrics and the web carbon fabrics with a needle, wherein in the fourth step, carbon nanotubes alternately and partially overlap each other and are bonded to surfaces of the unidirectional carbon fabrics, so thermal paths are formed on the surfaces of the unidirectional carbon fabrics.