PURPOSE: To manufacture easily and inexpensively a thin glassy carbon plate with high strength and high elasticity by kneading chlorinated vinyl chloride resin with furan resin, molding the kneaded material into a film, converting the film into a carbon precursor, and calcining it in an inert atmosphere.
CONSTITUTION: Chlorinated vinyl chloride resin and/or vinyl chloride resin is mixed with furan resin and kneaded under heating at ≤200°C. The kneaded material is molded into a film or a sheet. The molded body is converted into a carbon precursor by heating to 50W300°C in air. At the same time, the release of gaseous HCl and the curing of the furan resin are accelerated. The resulting film or the like is calcined by heating to ≥800°C, preferably ≥ about 1,000°C in an inert atmosphere of Ar or the like to carry out carbonization. A thin isotropic glassy carbon plate of several 10μmWseveralmm thickness with low permeability, high strength, high elasticity and high hardness is obtd.
YOSHIDA MITSURU
SUDA YOSHIHISA
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