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论文类型：期刊论文
发表时间：2008-07-15
发表刊物：APPLIED SURFACE SCIENCE
收录刊物：SCIE
卷号：254
期号：18
页面范围：5776-5780
ISSN号：0169-4332
关键字：PBO fiber; plasma treatment; XPS; AFM; surface wettability
摘要：The influence of oxygen plasma treatment on surface properties of poly(p-phenylene benzobisoxazole) (PBO) fibers and aging effect of the oxygen plasmamodified PBO fiber surfaces were investigated by X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and dynamic contact angle analysis (DCAA), respectively. The results indicated that the oxygen plasma treatment introduced some polar groups to PBO fiber surfaces, enhanced surface roughness and changed surface morphologies of PBO fibers by plasma etching and oxidative reactions. Surface wettability of PBO fibers may be significantly improved by increasing surface free energy of the fibers via oxygen plasma treatment. Aging effect of the oxygen plasma treated PBO fibers showed that the fiber surface wettability degraded in the first several days after the plasma treatment, and it was found to be changeless as the aging time continued as long as 30 days. (c) 2008 Elsevier B.V. All rights reserved.