Research on the Acid Fastness of Polyphenylene Sulfide Fiber

摘要

Polyphenylene sulfide (PPS) fiber is a kind of high-performance fiber. This paper aimed at investigating the acid resistant performance of PPS fiber. The corrosive action of PPS fiber in nitric acid (HNO_3), sulfuric acid (H_2SO_4), hydrochloric acid (HCl), the mixture of HNO_3 and HCl, the mixture of HNO_3 and H_2SO_4, the mixture of HNO_3, H_2SO_4 and HCl were researched. In addition, the influence of various acid concentrations on the performances of the PPS fiber was also studied in the paper. The acid-treated sample was analyzed by the fiber tensile instrument, the Fourier infrared spectrometer, and the scanning electron microscope (SEM) to observe the change of mechanical performance, configuration and appearance.