Use of Nonlinear Optics for Assessment of Cable Polymer Aging

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2021-09-05 DOI:10.36001/ijphm.2021.v12i2.2966

Kaylee N. Rellaford, Dallin L Smith, Alex Farnsworth, Shane M. Drake, H. Lee, J. Patterson

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Abstract

Polymer jackets play an important protective role in distribution cabling by providing structure and resistance to moisture, heat, and exposure to harmful chemicals. Current methods of structural assessment, such as elongation at break (E-at-B), are inherently destructive. While other non-destructive methods such as indenter evaluation are available, they are not suitable for in-service use. We propose that second harmonic generation (SHG) could provide a non-destructive means of characterizing the aging of chlorosulfonated polyethylene (CSPE) cable jackets. SHG was used to study cables previously aged and characterized by the Electric Power Research Institute (EPRI). Comparative data between the SHG results and indenter modulus tests suggest that SHG can be used to qualitatively differentiate between minimally and significantly aged CSPE cable jackets. The results of this proof-of-concept study suggest additional work that could be done to better understand the mechanisms of the aging of CSPE cable jackets and how SHG could be used to monitor the aging process.

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非线性光学在电缆聚合物老化评估中的应用

聚合物护套在配电布线中发挥着重要的保护作用，它提供了结构和防潮、耐热和接触有害化学物质的能力。目前的结构评估方法，如断裂伸长率（E-at-B），本质上具有破坏性。虽然可以使用其他无损检测方法，如压头评估，但它们不适合在役使用。我们提出，二次谐波产生（SHG）可以提供一种无损的方法来表征氯磺化聚乙烯（CSPE）电缆护套的老化。SHG用于研究电力研究所（EPRI）先前老化和表征的电缆。SHG结果和压头模量测试之间的比较数据表明，SHG可用于定性区分最小老化和显著老化的CSPE电缆护套。这项概念验证研究的结果表明，可以做更多的工作来更好地了解CSPE电缆护套的老化机制，以及如何使用SHG来监测老化过程。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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