The study on oxidation resistance property of PSA needle-punched nonwoven fabric

摘要

Polysulfonamide(PSA) fiber is a new type of high-performance fiber material with excellent high temperature resistance property. This paper studied the mechanics properties of the PSA needle-punched nonwoven fabric, which were treated respectively by Ca(ClO)2 solutions with concentrations of 6%, 12%, and 17%, at the temperature of 35°C. The experimental study showed that the dimension and aperture of the nonwoven fabric had no significant changes, while the thickness and the real density of the nonwoven fabric decreased a little. But the break strength of the nonwoven fabric increased sharply.