Using paint to investigate fires: an ATR-IR study of the degradation of paint samples upon heatingRoberts, K., Almond, M. and Bond, J. W. (2013) Using paint to investigate fires: an ATR-IR study of the degradation of paint samples upon heating. Journal of Forensic Sciences, 58 (2). pp. 495-499. ISSN 0022-1198 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1111/1556-4029.12049 Abstract/SummaryFire investigation is a challenging area for the forensic investigator. The aim of this work was to use spectral changes to paint samples to estimate the temperatures to which a paint has been heated. Five paint samples (one clay paint, two car paints, one metallic paint, and one matt emulsion) have been fully characterized by a combination of attenuated total reflectance Fourier transform infrared (ATR-IR), Raman, X-ray fluorescence spectroscopy and powder X-ray diffraction. The thermal decomposition of these paints has been investigated by means of ATR-IR and thermal gravimetric analysis. Clear temperature markers are observed in the ATR-IR spectra namely: loss of m(C = O) band, >300°C; appearance of water bands on cooling, >500°C; alterations to m(Si–O) bands due to dehydration of silicate clays, >700°C; diminution of m(CO3) and d(CO3) modes of CaCO3, >950°C. We suggest the possible use of portable ATR-IR for nondestructive, in situ analysis of paints.
Altmetric Related URLs Deposit Details University Staff: Request a correction | Centaur Editors: Update this record |
Lists
Lists
