Supercritical Fluid-Dried Copolymerized Aramid Nanofiber Sheets with Exceptional Thermal and Dimensional Stability.

Aramid fibers exhibit outstanding properties such as heat resistance, chemical resistance, dimensional stability, durability and elongation. However, their poor dispersibility poses a significant challenge when preparing composites. Consequently, converting aramid fibers into nanofibers is crucial to enhance their dispersibility.