Journal
WASTE MANAGEMENT
Volume 70, Issue -, Pages 212-221Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.wasman.2017.09.027
Keywords
Laser-induced breakdown spectroscopy; Partial least squares; Polycarbonate; Acrylonitrile-butadiene-styrene; Blends; Recycling
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Funding
- Sao Paulo Research Foundation (FAPESP) [2013/04688-7, 2016/01513-0]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [401074/2014-5, 305637/2015-0]
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [13/04688-7] Funding Source: FAPESP
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Due to the continual increase in waste generated from electronic devices, the management of plastics, which represents between 10 and 30% by weight of waste electrical and electronic equipment (WEEE or e-waste), becomes indispensable in terms of environmental and economic impacts. Considering the importance of acrylonitrile-butadiene-styrene (ABS), polycarbonate (PC), and their blends in the electronics and other industries, this study presents a new application of laser-induced breakdown spectroscopy (LIBS) for the fast and direct determination of PC and ABS concentrations in blends of these plastics obtained from samples of e-waste. From the LIBS spectra acquired for the PC/ABS blend, multivariate calibration models were built using partial least squares (PLS) regression. In general, it was possible to infer that the relative errors between the theoretical or reference and predicted values for the spiked samples were lower than 10%. (C) 2017 Elsevier Ltd. All rights reserved.
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