PRODUCTION OF POROUS CARBONACEOUS MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a porous carbonaceous material having pore properties of a large pore diameter and a high porosity and excellent in strength characteristics. SOLUTION: Nonwoven fabrics having characteristics of 0.03-0.15 g/cm<3> bulk density, >=50μm pore mode diameter obtained by a mercury intrusion method and >=80% porosity are impregnated with a thermosetting resin solution and the impregnated nonwoven fabrics are then laminated. The vacuum deaeration treatment of the resultant laminate is performed and the pressurizing treatment thereof is subsequently carried out to remove a part of the impregnated resin solution. The laminate is subsequently thermoset at 50-180 deg.C temperature to thereby regulate the amount of the nonwoven fabrics occupied in the apparent volume of the formed product to 0.03-0.15 g/cm<3> and the porosity of the formed product to 45-75%. The resultant cured formed product is further treated at >=80O deg.C temperature in a nonoxidizing atmosphere.