caa a22 4500 469057939 CHVBK 20180323132849.0 cr unu---uuuuu 170328e19920701xx s 000 0 eng 10.1007/BF00552637 doi (NATIONALLICENCE)springer-10.1007/BF00552637 Acid treatment of polyacrylonitrile tows with subsequent high-temperature washing [Elektronische Daten] [É. Alieva, Yu. Kozhevnikov, V. Medvedev, A. Serkov] Conclusions: -- A method has been proposed for combined short-term acid treatment of polyacrylonitrile tow with a sulfuric acid solution of elevated concentration. Intensification of the process of acid diffusion is achieved by subsequent high-temperature washing. -- The process of combined acid treatment and washing of fibre has been studied in which washing begins before completion of acid diffusion to the tow axis. It has been shown that in acid treatment during the course of the reduced time of 0.4 · 104 sec/cm2 (which corresponds to 0.5-2 sec) and subsequent washing with water having a temperature of 50-60°C, complete acid treatment of the tow is achieved. Plenum Publishing Corporation, 1992 Alieva É. aut Kozhevnikov Yu aut Medvedev V. aut Serkov A. aut Fibre Chemistry Kluwer Academic Publishers-Plenum Publishers 23/4(1992-07-01), 275-277 0015-0541 23:4<275 1992 23 10692 https://doi.org/10.1007/BF00552637 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00552637 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Alieva É. aut NATIONALLICENCE 700 1- Kozhevnikov Yu aut NATIONALLICENCE 700 1- Medvedev V. aut NATIONALLICENCE 700 1- Serkov A. aut NATIONALLICENCE 773 0- Fibre Chemistry Kluwer Academic Publishers-Plenum Publishers 23/4(1992-07-01), 275-277 0015-0541 23:4<275 1992 23 10692 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer