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>Characterization of epoxy coatings on steel by reflection/absorption fourier transform infrared spectroscopy. I. Effects of film thickness and angle of incidence
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Characterization of epoxy coatings on steel by reflection/absorption fourier transform infrared spectroscopy. I. Effects of film thickness and angle of incidence
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机译：Characterization of epoxy coatings on steel by reflection/absorption fourier transform infrared spectroscopy. I. Effects of film thickness and angle of incidence
AbstractFilms of amine‐cured epoxy coating of varying thicknesses from 100 Å to 2.5 μm on steel have been studied by reflection/absorption Fourier transform infrared spectroscopy (FTIR‐RA). The shape and frequency of several strongly absorbed bands of epoxy have been examined as a function of film thickness and angle of incidence. Compared to transmission spectra, reflection/absorption spectra of epoxy coating on steel show band shifts and distortions of the bands at 1510, 1247, and 1040 cm−1. These effects are more pronounced at increased thickness and at grazing angles. For thin films (<100 nm), RA spectral intensity increases with increasing angle of incidence. For thicker films, the relationship is quite complex. The relationship between film thickness and FTIR‐RA spectral peak height of an amine‐cured epoxy coating on steel has also been
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