Effect of plasma-grafting treatment on antistatic property of polyacrylonitrile fiber

Polyacrylonitrile fiber was grafted by atmospheric pressure dielectric barrier discharge plasma technique to improve its antistatic ability.The surface morphology and chemical composition of the fiber before and after plasma-grafting treatemnt were characterized by scanning electron microscopy(SEM) and infrared spectrum analysis.The effect of plasma processing parameters on the antistatic ability was investigated.The results indicated that plasma-grafting treatment was found to introduce some quaternary ammonium groups onto the fiber surface,and to drastically improve the antistatic ability and moisture permeability.The breathability and breaking strength reduced slightly after plasma treatment.