Tensile Behavior of Polysulfonamide Fiber after Chemical Treatment

Polysulfonamide fibers were treated with sulfuric acid and sodium hydroxide solution with different concentration respectively. The strength retention rate of the fibers was examined after the treatment. The morphologies of the fiber surface were characterized using scanning electron microscope and the degradation has been evaluated by FTIR. Based on the experimental results, possible corrosion mechanisms are addressed.