Abstract
Black plastics are common compounds of many technical devices and consumer goods. A well known example is the usage in automobile construction. Plastic recycling is gaining more and more importance, with fast plastic type identification being an essential question. This article presents a cost-effective and rugged alternative to FT-IR techniques, based on an acousto-optical tunable filter spectrometer, which is able to master the special difficulties in the recognition of black plastics.
© 1998 NIR Publications
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