Abstract
An ultraviolet (UV) ozone treatment has been used to oxidise the surfaces of batches of natural wool fibres. The changes in surface composition and chemistry induced by this treatment have been followed using X-ray photoelectron spectroscopy (XPS). Oxidation of surface di-sulphide sulphur to sulphonic acid groups (- SO 3 H) containing S 6+ is observed at levels of approximately 90% conversion. This is significantly higher than levels previously achieved using oxygen plasmas. The treatment also appears to cause reaction of the proteinaceous carbon, leading to an increase in carbon-oxygen, particularly carbonyl, functionality. The data presented indicate that the treatment used is capable of producing surface sulphur and carbon chemistry of the type usually obtained by wet chlorination.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
