期刊
POLYMER ENGINEERING AND SCIENCE
卷 40, 期 11, 页码 2423-2429出版社
SOC PLASTICS ENG INC
DOI: 10.1002/pen.11374
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The goal of this work was instant identification of post-consumer plastics by laser induced plasma spectrometry (LIPS). LIP spectra from plastics in a 200-800 nm spectral window were compared with reference spectral libraries stored in a computer. The libraries consisted of representative spectra from different groups of recycled plastic samples. The plasma emission spectra of polyethylene terephthalate (PET), high density polyethylene (HDPE), polyvinyl chloride (PVC), low density polyethylene (LDPE), polypropylene (PP) and polystyrene (PS) were studied. Simple statistical correlation methods including linear and rank correlations were used. The probabilities of correct identification ranged from 0.8 to 1 with values close to unity for most of the polymers studied.
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