| 摘要 |
PROBLEM TO BE SOLVED: To produce a porous carbon sheet having increased gas permeability in the thickness direction while keeping the mechanical strength relatively high and the specific resistance in the thickness direction relatively high. SOLUTION: Short carbon fibers dispersed in random directions in a practically two-dimensional plane are bonded to one another with carbon to obtain the objective porous carbon sheet having >=14.7MPa bending strength, >=0.49MPa compressive strength in the thickness direction, <=11.8MPa modulus of compressive elasticity in the thickness direction, <=0.01Ωm specific resistance in the thickness direction and >=3,000ml.mm/cm<2> /hr/mmAq gas permeability in the thickness direction in air. |
