Cure monitoring of two-component epoxy adhesives by terahertz time-domain spectroscopy

Stefan Sommer; Thorsten Probst; Eduard Kraus; Benjamin Baudrit; Graham E. Town; Martin Koch

doi:10.1134/S1560090416060154

Cure monitoring of two-component epoxy adhesives by terahertz time-domain spectroscopy

Stefan Sommer^*, Thorsten Probst, Eduard Kraus, Benjamin Baudrit, Graham E. Town, Martin Koch

^*Corresponding author for this work

School of Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We report nondestructive measurements of the properties of two-component epoxy adhesives at terahertz wavelengths using a transmissive time-domain spectroscopy system. The results show that the different epoxies have measurably different THz properties, that the changes which occur during the curing process can be monitored by measurements of their refractive index and absorption at terahertz wavelengths, and that this technique is sensitive enough to record changes in the optical material parameters during the postcuring process.

Original language	English
Pages (from-to)	769-776
Number of pages	8
Journal	Polymer Science - Series B
Volume	58
Issue number	6
DOIs	https://doi.org/10.1134/S1560090416060154
Publication status	Published - 1 Nov 2016

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abstract = "We report nondestructive measurements of the properties of two-component epoxy adhesives at terahertz wavelengths using a transmissive time-domain spectroscopy system. The results show that the different epoxies have measurably different THz properties, that the changes which occur during the curing process can be monitored by measurements of their refractive index and absorption at terahertz wavelengths, and that this technique is sensitive enough to record changes in the optical material parameters during the postcuring process.",

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AU - Probst, Thorsten

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AU - Town, Graham E.

AU - Koch, Martin

PY - 2016/11/1

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N2 - We report nondestructive measurements of the properties of two-component epoxy adhesives at terahertz wavelengths using a transmissive time-domain spectroscopy system. The results show that the different epoxies have measurably different THz properties, that the changes which occur during the curing process can be monitored by measurements of their refractive index and absorption at terahertz wavelengths, and that this technique is sensitive enough to record changes in the optical material parameters during the postcuring process.

AB - We report nondestructive measurements of the properties of two-component epoxy adhesives at terahertz wavelengths using a transmissive time-domain spectroscopy system. The results show that the different epoxies have measurably different THz properties, that the changes which occur during the curing process can be monitored by measurements of their refractive index and absorption at terahertz wavelengths, and that this technique is sensitive enough to record changes in the optical material parameters during the postcuring process.

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JO - Polymer Science - Series B

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ER -

Cure monitoring of two-component epoxy adhesives by terahertz time-domain spectroscopy

Abstract

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