Abstract

Near infrared spectroscopy was used as an in-line control system for the measurement of polypropylene filled with different amounts of Irganox additives. For this purpose transmission probes were installed in an extruder. The probes can withstand temperatures up to 300°C and pressures up to 60 MPa. Transmission spectra of polypropylene mixed with an Irganox additive were recorded. PCA score plot was carried out revealing the influence of varying conditions for the mixing of the sample preparation. Prediction models were generated with partial least square regression which resulted in a model which estimated Irganox with a coefficient of detremination of 0.984 and a root mean square error of prediction of 0.098%. Furthermore the possibilities for controlling process conditions by measuring transmission at a specific wavelength were shown.

© 2005 NIR Publications

Polymer microstructured fibers by one-step extrusion

M. Mignanelli, K. Wani, J. Ballato, S. Foulger, and P. Brown
Opt. Express 15(10) 6183-6189 (2007)

Polymer composites based on polyvinyl chloride nanofibers and polypropylene films for terahertz photonics

Tianmiao Zhang, Ravshanjon Nazarov, Le Quoc Pham, Viktoria Soboleva, Petr Demchenko, Mayya Uspenskaya, Roman Olekhnovich, and Mikhail Khodzitsky
Opt. Mater. Express 10(10) 2456-2469 (2020)

Analysis of glass flow during extrusion of optical fiber preforms

Heike Ebendorff-Heidepriem and Tanya M. Monro
Opt. Mater. Express 2(3) 304-320 (2012)

Far-infrared laser measurement of the refractive index of polypropylene

Jesús Flores-Mijangos and Virgilio Beltrán-López
Appl. Opt. 42(3) 592-596 (2003)

Novel method for manufacturing optical fiber: extrusion and drawing of microstructured polymer optical fibers from a 3D printer

Wanvisa Talataisong, Rand Ismaeel, Seyed Reza Sandoghchi, Teerapat Rutirawut, Glenn Topley, Martynas Beresna, and Gilberto Brambilla
Opt. Express 26(24) 32007-32013 (2018)