Description: Monitoring polymeric compounding processes inline with THz time-domain spectroscopy

This title appears in the Scientific Report : 2009

Monitoring polymeric compounding processes inline with THz time-domain spectroscopy

We demonstrated the potential of terahertz spectroscopy for contactless and nondestructive inline control of polymeric compounding processes. Using a fiber-coupled terahertz spectrometer, we investigated molten polymers and polymeric compounds. On one hand, we studied the influence of temperature an...

Personal Name(s):	Krumbholz, N.
	Hochrein, T. / Vieweg, N. / Hasek, T. / Kretschmer, K. / Bastian, M. / Mikulics, M. / Koch, M.
Contributing Institute:	Halbleiter-Nanoelektronik; IBN-1 JARA-FIT; JARA-FIT
Published in:	Polymer testing, 28 (2009) S. 30 - 35
Imprint:	Amsterdam [u.a.] Elsevier Science 2009
Physical Description:	30 - 35
DOI:	10.1016/j.polymertesting.2008.09.009
Document Type:	Journal Article
Research Program:	Grundlagen für zukünftige Informationstechnologien
Series Title:	Polymer Testing 28
Subject (ZB):	J Non-destructive testing Terahertz Inline Compounds Additive content
	Publikationsportal JuSER

Please use the identifier: http://dx.doi.org/10.1016/j.polymertesting.2008.09.009 in citations.

We demonstrated the potential of terahertz spectroscopy for contactless and nondestructive inline control of polymeric compounding processes. Using a fiber-coupled terahertz spectrometer, we investigated molten polymers and polymeric compounds. On one hand, we studied the influence of temperature and pressure on the terahertz properties of molten polypropylene. On the other hand, various polypropylene-CaCO3 and PA6-glass-fiber compounds were examined. We showed that the volumetric additive content can be determined from the terahertz refractive index of the compound. Real-time measurements demonstrated the applicability of terahertz technology as a valuable tool for the inline control of production processes. (C) 2008 Elsevier Ltd. All rights reserved.