Mcb. Lopez et al., Effect of some precursor characteristics on the porous texture of activated carbon fibres prepared from Nomex aramid fibres, MICROP M M, 41(1-3), 2000, pp. 319-321
The influence of some characteristics of Nomex [poly(m-phenylene isophthala
mide)] fibres on the porous texture of activated carbon fibres (ACFs) prepa
red from them by pyrolysis and CO2 activation has been comparatively analys
ed. The features studied were the degree of crystallinity and the presence
of dyeing additives on the precursor. The obtained ACFs were characterised
by N-2 (77 K) and CO2 (273 K) adsorption, and X-ray diffraction. The result
s show that the texture developed is mainly related to the degree of burn-o
ff(BO) achieved. Crystallinity differences or the presence of carbon black
dye in the precursor brought about little differences in porous texture, th
e main ones appearing at low and high BOs. (C) 2000 Elsevier Science B.V. A
ll rights reserved.