Journal
ANALYTICAL CHEMISTRY
Volume 93, Issue 4, Pages 2449-2455Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.0c04453
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Funding
- EPSRC [EP/R019460/1, EP/P024807/1, EP/M00306X/1]
- EPSRC [EP/M00306X/1, EP/P024807/1, EP/R019460/1] Funding Source: UKRI
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This study demonstrates the sensitivity of terahertz technology in measuring water absorption, comparing it to conventional gravimetric analysis to investigate the variation of water content in simple and commercial epoxy systems.
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.
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