Application of spray techniques for new photocatalytic gradient coatings on plastics

THIN SOLID FILMS

卷:502

Article; Proceedings Paper

Schmidt, H ; Naumann, M ; Müller, TS ; Akarsu, M

关键词: photocatalysis;    polymers;    gradient coatings;    titanium dioxide;    nanoparticles;   

DOI  :  10.1016/j.tsf.2005.07.257

来源: Elsevier

【 摘 要 】

Transparent coating systems applicable on plastics surfaces by a spray technique are presented. The coatings are based on highly photocatalytically active nanoscaled titania powders, surface modified with silanes containing organic or fluoro-organic side chains. The modification allows for the introduction of the particles in organic inorganic hybrid NANOMER (c) coating systems. In the wet film-due to the evaporation of the solvents - a decompatibilisation of the coated particles to the matrix results in a self-organising gradient layer formation with an up-concentration of the active particles at the interface layer between coating and air. After activation by irradiation with artificial or natural UV-light, highly active transparent photocatalytic coatings for a great variety of materials are obtained. (c) 2005 Elsevier B.V. All rights reserved.

【 授权许可】

Free