Original scientific paper
Surface Modification of Polyester Fabric with Tribomechanically Activated Natural Zeolite (TMAZ) Nanoparticles
Ana Marija GRANCARIĆ
; Faculty of Textile Technology
Anita TARBUK
; Faculty of Textile Technology
David McCALL
; Agri Food and Biosciences Institute, Newforge Lane, Belfast
Abstract
Textile Scientists, united in the European Technology Platform for the Future of Textiles, established nine topics as guidance for future textile development. New textile application for achieving the materials for human performance (medical, protective and sports) is one of them. This paper is an attempt to modify the surface of polyester fabric with nanoparticles of tribomechanically activated zeolite (TMAZ) for achieving better UV protection. Polyester fabric protective ability from UV radiation (UV-R) was investigated after different treatments - alkaline hydrolysis, TMAZ nanoparticle treatment, and optical brightening. Polyester fabrics of poly(ethylene-terphtalate) was alkaline hydrolyzed in sodium hydroxide with addition of accelerator for achieving silk-like fabric for summer clothing purposes. TMAZ nanoparticles and optical brightener Uvitex ERN-P (Ciba) were applied on polyester fabric surface by thermosol process. Fabric surface was investigated by SEM. UV protection with modified fabric; fabric whiteness (CIE whiteness, CIEWH) and yellowness (Yellow Index, YI) were determined. The effect of surface modification was compared with the effect of UV absorber, Tinofast PES (Ciba) commercial product specially produced for UV protection. For the durability of treatment the fabrics were washed. Alkali hydrolysis modifies the surface of polyester fabric resulting in silk-like fabric. The treatment with TMAZ nanoparticles fills out the pits on fabric surface resulting in better adsorption, and retaining the silk-like appearance. Optical brightening increases the fabric whiteness and UV protection. Optical brightener and TAMZ nanoparticles show synergism in whiteness and UV protection increment. Modification with TMAZ nanoparticles results in UV protection similar to the one using UV absorber, which slightly goes off in the washing process.
Keywords
nanoparticles; PET fabric; surface modification; UV protection; zeolite
Hrčak ID:
21590
URI
Publication date:
4.4.2008.
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