The main methods of chemical grafting modification of polyacrylonitrile fibers are summa-rized,and the problems of poor mechanical properties and low utilization rate of modified fibers are e-laborated and analyzed.It is pointed out that the main direction for its future development is to adopt mild chemical modification methods and expand the application fields of large-scale modified fibers.
关键词
聚丙烯腈纤维/接枝法改性/偕胺肟基/胺基/氰基
Key words
polyacrylonitrile fiber/graft modification/amidoxime group/amine group/cyanide group