Dunkers, J.
, Flynn, K.
, Huang, M.
and McDonough, K.
(1997),
Fourier Transform Near-Infrared Monitoring of Reacting Resins Using an Evanescent Wave High-Index Fiber-Optic Sensor, Applied Spectroscopy, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=854030
(Accessed January 2, 2025)
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Fourier Transform Near-Infrared Monitoring of Reacting Resins Using an Evanescent Wave High-Index Fiber-Optic Sensor
Published
Author(s)
, , Mitchell Huang,
Abstract
In this work, a high-index silica-b ased ® ber-optic mini-bundle sensor was constructed and implemented with a Fourier transform near-infrared spectrometer in the spectral region from 10 000 to 4500 cm2. The refractive index of the multimode step index ® ber was 1.618. This arrangement allows the propagation of waveguiding modes when the sensor is immersed in most resin systems. The reactions of a polyisocyanurate resin system and an epoxy resinsystem were monitored and peak assignments were made and discussed with respect to their potential for use in real-time analysis to be applied to cure control. Last, cure monitoring with this sensor was successfully demonstrated in a glass-reinforced resin transfer molded epoxy part.Citation
Applied Spectroscopy
Pub Type
Journals
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Keywords
Near infrared, Fiber optics, Composite, Cure, Epoxy, Polyisocyanurate
Citation
Issues
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Created November 4, 1997, Updated February 19, 2017