Abstract

Principal component analysis in a dual formulation is proposed to interpret changes in the C 1s X‑ray photoelectron spectra, arising from modification of the surface of polyetheretherketone. The distribution of the spectral intensities considered together with the spectra on dual graphs is used to construct a model of the peak structure of the C 1s spectra for their subsequent decomposition into components. It is shown that after treatment of the surface of polyetheretherketone with accelerated ion and neutral beams of argon-atom clusters, 288.3- and 285.5-eV peaks appear in the C 1s spectra, which characterize the presence of carboxyl functional groups and aliphatic carbon atoms in the modified surface layer.

中文翻译：

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X射线光电子C 1 s主成分分析法测定聚醚醚酮改性表面的键合状态

摘要

提出了用双重配方进行主成分分析的方法，以解释由于聚醚醚酮表面的改性而引起的C 1 s X射线光电子能谱的变化。使用对偶图谱上考虑的光谱强度分布与光谱一起来构建C 1 s光谱的峰结构模型，以将其随后分解为组分。结果表明，用加速离子和氩原子簇的中性束处理聚醚醚酮表面后，C 1 s光谱中出现了288.3-和285.5-eV峰，这表明存在羧基官能团和脂肪族碳原子在修饰的表面层中。