Microcellular carbon foam and method

Details Microcellular carbon foam and method Microcellular carbon foam and method

1993-09-13

1994-04-05

Foelak, Morton

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

264 291, 264 297, 4234496, 521142, 521918, C01B 3100, C01B 3102, C08J 936

Patent

active

053002725

ABSTRACT:
A microcellular carbon foam characterized by a density in the range of about 30 to 1000 mg/cm.sup.3, substantially uniform distribution of cell sizes of diameters less than 100 .mu.m with a majority of the cells being of a diameter of less than about 10 .mu.m, well interconnected strut morphology providing open porosity, and an expanded d(002) X-ray turbostatic spacing greater than 3.50 angstroms. The precursor for the carbon foam is prepared by the phase inversion of polyacrylonitrile in a solution consisting essentially of at least one alkali metal halide and a phase inversion solvent for the polyacrylonitrile.

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