Surface wettability aging behavior of aramid fiber III after oxygen plasma treatment. Issue 1 (February 2020) - Guo, Lu
Abstract: Aramid Fiber III was modified by oxygen plasma treatment. The fiber surface wettability before and after different oxygen plasma treatment pressure, and surface wettability aging behavior were observed by Dynamic Contact Angles Analysis (DCAA), respectively. The results showed that aramid fiber surface wettability were increased after oxygen plasma treatment. The total surface free energy increased from 37.78 mJ/m 2 for untreated sample to 69.63 mJ/m 2 with 40 Pa plasma treated fiber. The fiber surface wettability decreased slowly with storage time in air. The fiber surface wettability decreased from 67.79 mJ/m 2 for 20 Pa plasma-treated sample to 63.85 mJ/m 2 after 30 days.