Low-cost external reflection unit for rapid analysis of carbon-filled rubbers

Bert Lutz; Hendrik J. Luinge; John H. van der Maas; Rob van Agen

doi:10.1117/12.166714

31 January 1994 Low-cost external reflection unit for rapid analysis of carbon-filled rubbers

Bert Lutz, Hendrik J. Luinge, John H. van der Maas, Rob van Agen

Proceedings Volume 2089, 9th International Conference on Fourier Transform Spectroscopy; (1994) https://doi.org/10.1117/12.166714
Event: Fourier Transform Spectroscopy: Ninth International Conference, 1993, Calgary, Canada

Abstract

The analysis of carbon-filled composites used in the production of tires is a laborious, time consuming and polluting `wet chemistry' job. Infrared reflection techniques, internal as well as external, are excellent alternatives as sampling is simple and fast. The internal reflection technique (ATR) proves to be useful for samples with a carbon content up to 20% w/w, where absorption of radiation becomes too strong. We have constructed a low-cost large area horizontal specular reflection device which allows handling samples with carbon contents up to 50%. Although compared to transmission and ATR the reflectance spectra are rather complex, mathematical differentiation and application of partial least squares regression gives qualitative and quantitative results suited for production control, trouble shooting and fast product analysis in an industrial environment.

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Bert Lutz, Hendrik J. Luinge, John H. van der Maas, and Rob van Agen "Low-cost external reflection unit for rapid analysis of carbon-filled rubbers", Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); https://doi.org/10.1117/12.166714

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