- P-ISSN 1225-0163
- E-ISSN 2288-8985
- P-ISSN1225-0163
- E-ISSN2288-8985
- SCOPUS, ESCI, KCI
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Thermal residues analysis of plastics by FT-near infrared spectroscopy
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2017, v.30 no.5, pp.234-239
https://doi.org/10.5806/AST.2017.30.5.234
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(2017). Thermal residues analysis of plastics by FT-near infrared spectroscopy. Analytical Science and Technology, 30(5), 234-239, https://doi.org/10.5806/AST.2017.30.5.234
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Abstract
Identifying the components of residues that are not completely burned at the sites of fires site can provide valuable information for tracing the causes of fires. In order to clarify the types of plastic combustion residues found at the scenes of fires, we studied the residue formed after the combustion of polyethylene (PE) and acrylonitrile butadiene styrene (ABS). Plastic samples were burned at 200, 300, 350, 400, and 500 °C for 3 min using a cone calorimeter, and the changes in weight and combustion products were observed. The powder products obtained by lyophilization and pulverization of the combustion products obtained at each temperature were analyzed by a Fourier transform-near infrared (FT-NIR) spectrometer. When the PE samples were burned, the weight did not change up to 350 °C, however a significant change in the weight could be measured above 400 °C. The principal component analysis (PCA) of the FT-NIR spectra of the PE and ABS samples obtained at each temperature confirmed that the combustion residues at each temperature were PE and ABS, respectively. Therefore, the types of unburned plastics found at the sites of fires can be confirmed rapidly by near infrared spectroscopy.
- keywords
- Plastic, Fire residues, Cone calorimeter, Near infrared spectrometer (NIRS), Principle component analysis (PCA)
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