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Sensing water absorption in hygrothermally aged epoxies with terahertz time-domain spectroscopy

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<mark>Journal publication date</mark>31/01/2021
<mark>Journal</mark>Analytical Chemistry
Issue number4
Volume93
Number of pages7
Pages (from-to)2449-2455
Publication StatusPublished
Early online date5/01/21
<mark>Original language</mark>English

Abstract

In the field of non-destructive testing, terahertz sensing has been used to analyze a wide range of materials where the most successful applications have involved materials that are semi-transparent to terahertz radiation. In this work, we demonstrate the sensitivity of terahertz time-domain spectroscopy to quantify water absorption in hygrothermally aged simple and commercial epoxy systems supported by conventional gravimetric analysis.