Characterization of various acrylic fibres by infrared spectroscopy

Abstract

An attempt has been made to develop a database containing information on the infrared spectral characteristics, composition and morphological features of different types of acrylic-based fibres with a view to provide an alternative and quick method of their identification, classification and gradation. This is based on a detailed infrared spectral and morphological study on different acrylic-based fibres showing variation in terms of type (monocomponent, bicomponent and special acrylic fibres), process (wet spun/dry spun) and composition. The availability of optic fibre-based instruments has led to the ease of on site IR spectral measurements, even away from the main spectrometer and also replaces the presently used diffuse reflectance infrared Fourier transform measurement accessory. The study, thus, demonstrates the capability of IR spectroscopy as a semi-quantitative tool for fast identification/gradation of acrylic-based fibres on routine basis.