Synthetic pulp fiber ozonation: An ESCA and FTIR study

Publisher Website
Google Scholar
Abstract
Polytheylen (PE) pulp fiber was treated by ozone for surface modification. Surface analysis was performed by using X‐ray photoelectron (ESCA) and IR (FTIR) spectroscopies. Carbon (C) and Oxygen (O) were the main atoms detected by ESCA (C1s, O1sregions) on the treated fiber. Analysis of the C1speaks (C1, C2, and C3) showed that the oxidation level changed with the ozonation time. O1speak components (O0, O1, and O2) were very useful to complete the surface analysis. FTIR spectra showed the presence of carbonyl groups (1740–1700 cm−1), even on nontreated fiber, which increased in intensity as treatment time increased. Ozone treatment went beyond the surface level to the bulk of the fiber. This was marked by a large increased of the intensity of the carbonyl band after 3 h of ozonation. Thermal analysis suggests structure and morphology changes of fiber when exceeding 2 h of ozonation. © 1993 John Wiley & Sons, Inc.
Keywords