HIGH THERMAL CONDUCTIVITY GRAPHITE HEAT SINK ENHANCED WITH THERMALLY CONDUCTIVE FIBER AND METHOD FOR PREPARING SAME

摘要

The present invention provides a high-thermal conductivity graphite heat sink enhanced with a thermally conductive fiber and a method for preparing same. The method for preparing a high-thermal conductivity graphite heat sink enhanced with a thermally conductive fiber comprises: performing preprocessing on graphite powder; processing the graphite powder after preprocessing through graphite foil production equipment to produce a graphite thermally conductive heat sink plate; and adopting a graphite short fiber, a carbon fiber cloth or carbon fiber as an enhancer, performing spraying laminating on graphite thermally conductive heat sink plate and the enhancer using an adhesive to produce a high-thermal conductivity graphite heat sink enhanced with a thermally conductive fiber. The method for preparing a high-thermal conductivity graphite heat sink enhanced with a thermally conductive fiber overcomes the defects in conventional preparation process such as low mechanical performance, a short service life, and easy pealing, and has significantly increased the mechanical strength and purity, which facilitates subsequent processing and use, has the advantages such as light weight, high strength, and high thermal conductivity performance, thereby expanding the range of use of a graphite plate.