Preparation of Macropores on the Surface of Rayon-based Carbon Fiber: Different Concentration of NaCl
Rayon-based carbon fibers marinated by mixture aqueous solution containing NaCl and H3PO4 are activated by steam for manufacture activated carbon fibers (ACF) in this work. We found that macropores (pore size > 50 nm) were developed on ACF surface with a given adding amount of NaCl and H3PO4. The pore distribution and morphology of the resulting ACFs were examined by scanning electron microscopy (SEM), revealing that the pore structure can be controlled by different NaCl concentrations. Using wide angle X-ray diffraction (WAXD), we demonstrated that the crystal structure of the ACF was uncorrelated to the adding amount of NaCl. But different concentration of NaCl will strongly influence on the tensile strength of ACF. The results proved that macroporous ACF with a certain tensile strength can be manufactured by activating carbon fibers.
Activated carbon fiber Macropores Crystal structure Tensile strength
Yan Cheng Cai Zetian Wang Guangxue Shi Yanping Zang Peng Wu Qilin
State Key Lab.for Modification of Synthetic Fibers and Polymer Materials, Donghua University, Shanghai 200051, China
国际会议
上海
英文
286-289
2009-05-27（万方平台首次上网日期，不代表论文的发表时间）