Real-time detection of flame-retardant additives in polymers and polymer blends with NIR imaging spectroscopy

Raimund Leitner; Gerald McGunnigle; Martin Kraft; Martin De Biasio; Volker Rehrmann; Dirk Balthasar

doi:10.1117/12.818540

30 April 2009 Real-time detection of flame-retardant additives in polymers and polymer blends with NIR imaging spectroscopy

Raimund Leitner, Gerald McGunnigle, Martin Kraft, Martin De Biasio, Volker Rehrmann, Dirk Balthasar

Author Affiliations +

Proceedings Volume 7312, Advanced Environmental, Chemical, and Biological Sensing Technologies VI; 73120M (2009) https://doi.org/10.1117/12.818540
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

The detection of flame retardants is critical for the recycling of polymers. To investigate the possibility of reliable purefraction sorting, a sample set containing a wide range of relevant polymers and polymer blends containing various practically relevant flame-retardant additives was produced and investigated. NIR point spectra were acquired with an FTIR laboratory spectrometer and hyper-spectral NIR images were obtained using a spectrograph-based hyper-spectral imaging system. The laboratory spectrometer measurements were used to assign spectral features to the corresponding chemical compounds and derive a chemometric model that can be used to detect flame-retardant additives. The hyperspectral NIR images were used to adapt the chemometric model to the spectral features present in the hyper-spectral image data for the real-time detection.

Citation Download Citation

Raimund Leitner, Gerald McGunnigle, Martin Kraft, Martin De Biasio, Volker Rehrmann, and Dirk Balthasar "Real-time detection of flame-retardant additives in polymers and polymer blends with NIR imaging spectroscopy", Proc. SPIE 7312, Advanced Environmental, Chemical, and Biological Sensing Technologies VI, 73120M (30 April 2009); https://doi.org/10.1117/12.818540

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