Влияние активации на удельную поверхность и пористую структуру углеродных волокон на основе вискозы и ПАН-волокна (УКН-5000)

The results of a research on the influence of activation of carbon fibers in CO2 current on the change in their specific adsorptive surface and porous structure are presented. The fibers under study were produced from viscose and polyacrylonitrile. It is shown that as a result of activation the specific surface of carbon fibers can be increased from 0.3 to 1900 m2 /g, and the volume of porous space, from 0.1 to 400 cm3 /g. It is established that the nature of the initial fiber has an essential influence on the extent of change in specific surface and porous structure. After activation fibers based on viscose have significantly greater values of specific surface and a bigger fraction of micropores in their structure than fibers based on polyacrylonitrile.П оказано, что при активации адсорбционная поверхность углеродных волокон может быть увеличена от 0.3 до 1900 м2/г. Существенное влияние на степень изменения адсорбционной поверхности и пористой структуры волокна оказывает его природа

The influence of activation on the surface area and porous structure of carbon fibers based on viscose and PAN (UKN-5000)

The results of a research on the influence of activation of carbon fibers in CO2 current on the change in their specific adsorptive surface and porous structure are presented. The fibers under study were produced from viscose and polyacrylonitrile. It is shown that as a result of activation the specific surface of carbon fibers can be increased from 0.3 to 1900 m2 /g, and the volume of porous space, from 0.1 to 400 cm3 /g. It is established that the nature of the initial fiber has an essential influence on the extent of change in specific surface and porous structure. After activation fibers based on viscose have significantly greater values of specific surface and a bigger fraction of micropores in their structure than fibers based on polyacrylonitrile