| 摘要 |
PURPOSE:To provide a method to produce a tubular porous vitreous carbon body, provided with excellent pore structure and excellent material strength, in good mass-productivity. CONSTITUTION:A carbon precursor sheet composed of cellulose having 10-150mum av. pore diameter is impregnated with a thermosetting resin solution of 5-70wt.% conc. in >=40wt.% actual carbon ratio and the carbon precursor sheet impregnated with the resin is formed into tubular type by winding on a mandrel at 50-200 deg.C while giving a tension of 5-100kgf/cm<2>. Next, the tubular body formed is baked and carbonized in non-oxidative atmosphere at >=800 deg.C to convert to the tubular porous glass like carbon body. |
