Sensing Water Absorption in Hygrothermally Aged Epoxies with Terahertz Time-Domain Spectroscopy
Hungyen Lin, B. Russell, Prince Bawuah, J. Axel Zeitler
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.
Topics & Concepts
Terahertz radiationTerahertz time-domain spectroscopyTerahertz spectroscopy and technologyChemistrySpectroscopyAbsorption (acoustics)Gravimetric analysisAbsorption spectroscopyTime domainOptoelectronicsAnalytical Chemistry (journal)OpticsMaterials scienceChromatographyOrganic chemistryPhysicsComputer scienceComputer visionQuantum mechanicsTerahertz technology and applicationsSuperconducting and THz Device TechnologySpectroscopy and Laser Applications