中间相沥青纤维的氧化稳定化研究

THE STUDY OF OXIDATIVE STABILIZATION OF MESOPHASE PITCH FIBERS

本文对两种不同的中间相沥青原丝进行氧化稳定化的研究。测试了原丝在氧化过程中含氧量的变化规律,提出了不同QI含量的沥青原丝在达到稳定化时所需最低含氯量的断定方法。本文还采用X射线光电子能谱法(XPS)测定了氧化丝表面含氧官能团的种类和数量,并结合元素分析数据探讨了氧化稳定化的机理。

In this paper, study is made on the oxidative stabilization of two mesophase pitch precursor fibers (MPPF). The change tendency of O-content in MPPF during oxidation is determined, and the method for judging the minimum O-content required for the oxidative stabilization is raised. In addition, the kinds and numbers of the O-content functional groups on the surface of oxidizing precursor fibers are measured by X-ray photoelectron spectroscopy (XPS), and the mechanism of oxidative stabilization of MPPF is discussed.