DOI: 10.3724/SP.J.1249.2015.02121

Journal of Shenzhen University Science and Engineering (深圳大学学报理工版) 2015/32:2 PP.121-127

Quantitative analyses of fibers by differential scanning calorimetry

We use differential scanning calorimetry(DSC) to examine ten pure standard fiber samples and five polyester-cotton composite fiber samples to look for fiber evidence. The results show that the characteristics of DSC curves such as typical molten peak shape and position can serve as the useful criteria for differentiating fiber samples. Quantitative analyses of polyester-cotton composite fiber samples yield precise results with absolute errors generally being less than 3.0%, which confirms the feasibility of using the DSC method for forensic identification.

Key words:forensic science,fibers,thermal analysis,differential scanning calorimetry(DSC),molten heat,infrared spectroscopy,polyester-cotton composite fiber

ReleaseDate:2016-04-11 16:07:58

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