ESCA and FTIR Study of Synthetic Pulp Fiber Modified by Fluorinated Gases and Corona Discharge
✍ Scribed by Halim Chtourou; Bernard Riedl; Bohuslav Victor Kokta
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 407 KB
- Volume
- 158
- Category
- Article
- ISSN
- 0021-9797
No coin nor oath required. For personal study only.
✦ Synopsis
Polyethylene (PE) pulp fiber was treated by fluorinated gases and corona discharge, for surface modification. Surface analysis was performed by using X-ray photoelectron (ESCA) and IR (FTIR) spectroscopies. Carbon (C), Oxygen (O), and fluorine (F) were the main atoms detected by ESCA ( (\mathrm{C}{1 s}, \mathrm{O}{1 s}), and (\mathrm{F}{1 s}) regions) on fluorinated fiber. The (F) atom was obviously absent on corona-treated fiber. Analysis of (\mathrm{C}{13}) peaks ((\mathrm{Cl}, \mathrm{C2}), and (\mathrm{C} 3) ) showed an increase in (\mathrm{C} 2 / \mathrm{C}) and (\mathrm{C} 3 / \mathrm{C}) ratios. The oxidation level increases with the treatment time. (O_{1 s}) peaks components ((\mathrm{O} 1) and (\mathrm{O} 2) ) were very useful for completing the surface analysis. FTIR spectra showed the presence of carbonyl groups (1740(1717 \mathrm{~cm}^{-1}) ), even on nontreated fiber, which increased in intensity as treatment time increased. FTIR results suggest only surface level modification by both treatments, and no structure and morphology changes in bulk of the fiber. (1993 Academic Press, Inc.