Abstract
The surface orientation of polyester fibers has been studied by a modified sampling technique using Fourier transform infrared (FT-IR) diffuse reflectance spectroscopy. The fiber axes were arranged parallel to incident radiation first, and then perpendicular to it. The differences in total absorbance and relative intensity changes in the spectra obtained show the features of specular reflection. The technique has the advantage over ATR that there is no optical contact problem.
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Xue, G., Jiang, S., Dai, C. et al. Characterization of orientation at polyester fiber surface by modified infrared reflection technique. Polymer Bulletin 15, 363–368 (1986). https://doi.org/10.1007/BF00254857
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DOI: https://doi.org/10.1007/BF00254857