Thermal degradation of hydrophobic graphite-based thin film nano-coatings observed by Raman spectroscopy
2018
Abstract This work reports an alternative method for determining thermal degradation of graphite-based thin film hydrophobic coatings using the D and G graphite vibrations as a probe. We show that the Raman spectrum of the coating as a function of temperature is an efficient probe for detecting changes in the surface properties. Both D and
G bandsof graphite are sensitive to changes of the coating matrix induced by temperature. We apply the Raman technique to correlate the changes of D and G vibrations with those found by different experimental methods such as contact angle measurements and
thermogravimetric analysisto characterize organosilane hydrophobic coatings.
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