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Fourier-Transform Infrared (FTIR) Spectroscopy
Fourier-Transform Infrared Spectroscopy is a non-destructive examination to evaluate absorption bands in a molecular structure. This enables polymers such as Teflon, Nylon, polyethylene and polypropylene to be identified as well as molecular radicals such as acetates. In addition, deterioration from thermal or chemical exposure can also be determined.
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Figure 1 Nicolet iS10 FTIR Spectrometer
Figure 2 Collecting data from a primer applied to glass slide
Figure 3 Typical infrared scan for pure polystyrene (PS), which is pH-neutral and free of chemical additives.
Figure 4 This infrared scan revealed that contamination on the polystyrene surface was an unstable acetate, with showed indications of thermal decomposition.
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