Surface analysis of γ-ray irradiation modified PBO fiber
Surface analysis of γ-ray irradiation modified PBO fiber
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DOI：
10.1016/j.matchemphys.2005.01.025
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发表时间：
2005-07-15
影响因子：
4.6
通讯作者：
Zhao, YD
中科院分区：
文献类型：
--
作者：
Zhang, CH;Huang, YD;Zhao, YD
采用伽玛射线辐照法，在环氧氯丙烷和丙酮的溶液中以递增的辐照剂量处理聚[对亚苯基苯并二恶唑]（PBO）纤维。辐射处理引起表面性质的改变。利用X射线光电子能谱(XPS)、动态毛细管法和原子力显微镜(AFM)分别分析了处理对纤维化学成分、表面自由能和表面粗糙度的影响。通过H-1核磁共振(H-1 NMR)分析讨论了PBO聚合物与辐照介质环氧氯丙烷之间的接枝反应。结果表明，γ射线辐照技术通过产生一些活性的含氧、含氯、含氮基团，活化纤维表面，可以显着提高PBO纤维的表面化学惰性和表面光滑度。 (c) 2005 Elsevier B.V. 保留所有权利。
Poly[p-phenylene benzobisoxazole] (PBO) fiber is treated in a solution of epichlorohydrin and acetone using gamma-ray irradiation method with a increasing irradiation dose. The irradiation treatment induces a modification of the surface properties. The effects of the treatment on the chemical components, the surface free energy, and the surface roughness of the fiber are analyzed by using X-ray photoelectron spectroscopy (XPS), dynamic capillary method and atomic force microscopy (AFM), respectively. The grafting reaction between the PBO polymer and the irradiation medium-epichlorohydrin is also discussed by H-1 nuclear magnetism resonance (H-1 NMR) analysis. The results indicate that, gamma-ray irradiation technique can significantly improve the surface chemical inertness and the surface smooth of the PBO fiber by generating some active oxygen-containing, chlorine-including and nitrogen-containing groups and activating the surface of the fiber. (c) 2005 Elsevier B.V. All rights reserved.