Thermogravimetric Analysis of Rubber for Forensic Purposes: A Case Report

Khudbudin Mulani, Vijay Chandegaokar, Hemantini Deshpande

Abstract


The main objective of this study was to determine the inorganic
elemental components and thermal behavior of rubber samples
collected from crime scenes and to compare them with a control
sample.
Thermal decomposition study revealed that decomposition
temperature of rubber samples by TGA collected from crime scene
exhibit 1 and 2 were consistent with decomposition temperature of
control rubber sample exhibit 3.
The DSC analysis showed that the decomposition temperature
of the rubber samples exhibits 1 and 2 were 378.3 and 377.1 0C,
respectively, consistent with that of the control sample exhibit 3
(378.8 0C). The micro-XRF analysis showed that elemental composition
of rubber samples exhibits 1 and exhibit 2 matched with that
of control sample exhibit 3.
Thermal analysis was shown to be an important tool for
characterizing the thermal behavior of rubber samples. Rubber
samples collected from the scene of the crime with the
rubber sample from the suspect’s vehicle can prove very
valuable objective evidence.


Keywords


Forensic Sciences, Crime scene, Rubber, Thermogravimetric Analysis, TGA, DSC.

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References


Brown M, Introduction to Thermal Analysis: Techniques

and Applications, Chapman & Hall, London,

https://doi.org/10.1007/978-94-009-1219-9

Turi E, Thermal Characterisation of Polymeric Materials,

Academic Press Ltd, London, volume 2, 1997.

Raudino A, Sarpietro MG, Pannuzzo M. The thermodynamics

of simple biomembrane mimetic systems.

J Pharm Bioallied Sci. 2011;3(1):15. https://doi.

org/10.4103/0975-7406.76462.

Islam SZ, Deshmane VG, Ilias S. Thermal stability

study of Pd-composite membrane fabricated by surfactant

induced electroless plating (SIEP). Sep Sci Technol.

;51(7):1176-88. https://doi.org/10.1080/0149

2015.1109661

Reinert JC, Steim JM. Calorimetric detection of a

membrane-lipid phase transition in living cells. Sci.

;168(3939):1580-2. https://doi.org/10.1126/science.

3939.1580

Melchior DL, Morowitz HJ, Sturtevant JM,

Tsong TY. Characterization of the plasma membrane

of Mycoplasma laidlawii. VII. Phase transitions

of membrane lipids. Biochim Biophys Acta,

Rev Biomembr. 1970;219(1):114-22. https://doi.

org/10.1016/0005-2736(70)90066-0

Miller B, Thermal Analysis (Proceedings of the 7th

ICTA: Ontario, 1982).2 Vol. John Wiley & Sons,

Chichester, New York, 1982.

Hellmiss G. Thermal analysis methods in forensic science.

InForensic Science Progress 1988 (pp. 1-30).

Springer, Berlin, Heidelberg.

Harmon JP. Thermal Analysis of Polymeric Materials

By Bernhard Wunderlich (Knoxville, TN). Springer:

Berlin, Heidelberg, New York. 2005. xvi+ 894 pp.

$89.95. ISBN 3-540-23629-5.

Lachowicz T, Zięba-Palus J, Kościelniak P. Analysis of

rubber samples by Py-GC/MS for forensic purposes.

Problems of For Sci. 2012;91:195-207.

Gueissaz L, Massonnet G. Chemical analysis of tire

traces in traffic accidents investigation. J Forensic

Sci Med. 2015;1(2):99. https://doi.org/10.4103/2349-

164660

Wilma D, Raw materials and compounds in rubber industry.

University of Twente, 2007.




DOI: http://dx.doi.org/10.26735/16586794.2018.026

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