PAN基活性炭纤维的制备及孔结构分析

PREPARATION AND PORE STRUCTURE ANALYSIS OF PAN BASED ACTIVATED CARBON FIBER

采用水蒸汽活化法制备了具有不同比表面积的ＰＡＮ基活性炭纤维，并对其孔结构进行了较为详细的分析，结果表明，ＰＡＮ基活性炭纤维孔结构以直径小于１０Ａ的微孔为主，孔径分布窄，Ｄ－Ｒ，Ｄ－Ａ方程对其有良好的适用性，Ｈ－Ｋ法分析结果与Ｄ－Ｒ，Ｄ－Ａ方程结果相一致。

Abstract PAN based activated car Abstractbon fiber with various BET surface area was prepared by activation of preoxidized felt using stream as activation agent. The pore structure parameters of these samples were analysed. It showed that N2 adsorption isotherm of PAN based ACF could be well correlated by D-R, D-A equation and that pore diameter of ACF was almost less than 10A with narrow pore─size distribution. The result of H-K pore-size analysis is consistent with that obtained by Dubinin pore width calculation method.