Preparation and characterization of modified polyacrylonitrile fiber by collagen

With polyacrylonitrile fiber and collagen as the basic raw material,collagen modified polyacrylonitrile fibers with a high moisture regain and durability were prepared by hydrolysis-baking method.The structures and properties of collagen modified polyacrylonitrile fiber were analyzed by means of FT-IR,TG,XRD,DMA,SEM techniques.Results show that: compared with unmodified fiber,the surface of modified fiber is smooth and covered by a large number of collagen composition,the moisture regain increased from 2% to 6.1%,thermal decomposition temperature decreased from 318℃ to 296℃.The breaking strength and elongation of collagen modified polyacrylonitrile fiber are decreased too.