Composition for preparing artificial graphite element, powdery material, and method for fabricating the element

摘要

A composition for producing an artificial graphite element and a method for producing the same are provided. The composition includes a carbon-containing raw material such as fly ash, an adhesive, and a dispersant. The method for producing the artificial graphite element of the present invention includes the steps of mixing the above composition; baking the mixed composition to obtain powder having a plurality of particles; screening the powder to select particles having suitable particle diameters; molding the plurality of screened particles into an article; heating the article at 500 to 1000° C.; and graphitizing the heated article to obtain the artificial graphite element. The method of the present invention is simple and cost-effective. The artificial graphite element produced has a considerably large specific surface area due to its porous property, such that it is suitable for use as a heat-dissipating substrate.

主权项

1. A composition for producing an artificial graphite element, comprising:
a carbon-containing raw material comprising fly ash and graphite powder, and being in an amount ranging from 50 to 60%, based on a total weight of the composition; an adhesive in an amount ranging from 15 to 45%, based on the total weight of the composition; and a dispersant in an amount ranging from 5 to 25%, based on the total weight of the composition; and the fly ash being in an amount ranging from 85 to 95%, and the graphite powder being in an amount ranging from 5 to 15%, based on a total weight of the carbon-containing raw material.