Preparation of polyacrylonitrile fibre by spinning into organic baths

Carbon fibres

“…In the Soviet Union the work has been carried out to improve the quality of PAN tows using the thiocyanate method of forming and to manufacture polyacrylonitrile fibres by spinning in organic baths [51,52]. To improve the strength, a method has been developed to prepare a spinning solution of high-molecular-weight PAN in a medium composed of concentrated aqueous sodium thiocyanate with a continuous flow sheet.…”