Problems of Forensic Sciences 1999 Vol. 39 (XXXIX) 77-94

PHYSICO-CHEMICAL STUDY OF CAR PAINTS COATS

Joanna NIEZNAŃSKA1, Janina ZIĘBA-PALUS2, Paweł KOŚCIELNIAK1,2
1Faculty of Chemistry, Jagiellonian University, Cracow
2Institute of Forensic Research, Cracow

Streszczenie
A comprehensive examination of car paints originating from 45 new and repainted cars was carried out. The morphology of paint chips was studied using various optical microscopy techniques, and the binder, pigments and fillers were identified by means of the Micro-Fourier Transform Infrared Spectroscopy (MK-FTIR) and the X-ray microanalysis with the use of a scanning electron microscope and energy dispersive X-ray spectrometer (SEM-EDX). It was found that an application of these analytical methods enabled us to identify a car paints, and, in the case of a comparative analysis, to establish the degree of similarity of the evidence material and the comparative material.

Słowa kluczowe
Car varnish paint; Optical microscopy; MK-FTIR; SEM/EDX.

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