Abstract:

Objective To study the analytical methods of the elements in the backing of insulation tapes of the same color. Method Scanning electron microscopy/energy dispersive spectroscopy （SEM/EDS） was used for determining the relative amounts of two main elements， Cl and Ca， in the backing， and SPSS software was used for statistical analysis. X-ray fluorescence （XRF） was used for detecting the trace elements. Results Through the SEM/EDS quantitative analysis by comparing the relative amounts of Cl and Ca， 539 sample groups could be distinguished from the total 561 groups， and the discrimination rate was 96.1%. Based on the XRF qualitative analysis， 34 brands of red insulation tapes were divided into 11 groups according to their different combinations of Mg、Al、Si、S、Ti、Sb、Ba、Pb. The total discrimination rate was 98.4% when combining these two methods. Conclusion SEM/EDS and XRF methods can be used to distinguish different brands of insulation tapes of the same color.

Key words: insulation tape, backing, SEM/EDS, XRF, elemental analysis

摘要：

目的 探索电工胶带带基的元素检验方法。方法 利用扫描电镜/能谱法（SEM/EDS）对电工胶带带基中的主体元素进行定量分析，通过SPSS软件对SEM/EDS定量分析法检测出的主体元素（Cl和Ca）相对含量进行统计分析；利用X射线荧光光谱法（XRF）对电工胶带带基中的微量元素进行定性分析。结果 34个品牌红色电工胶带组成的561组样品对通过SEM/EDS定量分析法可以区分539组，区分率达到96.1%；根据XRF法定性分析测出的Mg、Al、Si、S、Ti、Sb、Ba、Pb微量元素的不同组合可将34种电工胶带分成11组，两种方法结合可使不同品牌红色电工胶带的区分率达到98.4%。结论 SEM/EDS法和XRF法结合可以实现同种颜色、不同品牌电工胶带的高效区分。

关键词: 电工胶带, 带基, 扫描电镜/能谱法, X射线荧光光谱法, 元素分析