THz spectroscopy for the inline control of polymeric compounding processes

TitleTHz spectroscopy for the inline control of polymeric compounding processes
Publication TypeConference Publication
Year of publication2008
AuthorsKrumbholz, N., T. Hochrein, N. Vieweg, T. Hasek, K. Kretschmer, M. Bastian, and M. Koch
Conference name2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2008)2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves
Pagination1 - 2
PublisherIEEE
Place publishedPasadena, CA
ISBN Number978-1-4244-2119-0
Keywordscalcium compounds, ecocomposites, extrusion, filled polymers, nondestructive testing, polymers, terahertz wave spectra, wood
Abstract

We present non-destructive and contactless inline measurements on the molten polymer polypropylene and on the polymeric compound polypropylene-CaCO3 carried out with a THz spectrometer. The effect of temperature and pressure on the THz properties of the molten polymeric material is investigated. Additionally, we analyze the additive content of the compound during the extrusion processing and compare this data with offline results. Further measurements on wood plastic composites demonstrate the capability of detecting the degree of dispersion of compounds with THz-spectroscopy.

DOI10.1109/ICIMW.2008.4665528