| 摘要 |
PURPOSE:To form a carbon molded body having complicated shape with small thickness by impregnating a shaped body, obtained by working bulk materials of organic polymeric fiber, with organic materials, subjecting to a hardening treatment to obtain a green compact, heat-treating and carbonizing the green compact. CONSTITUTION:An aq. soln. of carboxymethyl cellulose etc. is added to an organic polymeric fiber such as a cellulose fiber having a property to carbonize in a solid phase, and a sheet material having desired shape is formed by subjecting the obtained slurry to sheet making. The above-mentioned sheet material is impregnated with an organic material such as a prepolymer of polyimide resin leaving a large amt. of carbon residue after calcination. Then the impregnated material is subjected to a hardening treatment to obtain a green sheet-molded material which is then heated at a prescribed temp. under an inert gas atmosphere, calcined and carbonized. Thus the carbon molded body is obtained. A synthetic polymeric fiber such as polyacrylonitrile fiber can be used instead of the above-mentioned polymeric fiber, but in such a case, it is necessary to add the treating stages to make the fiber insoluble and infusible. |
