Luminescent polyurethane nanocomposites: processing, structure and properties
|Ewelina A. Zawadzak , Krzysztof J. Kurzydlowski|
Warsaw University of Technology, Faculty of Materials Science and Engineering (InMat), Wołoska 141, Warszawa 02-507, Poland
Recently, as a result of progress in nanotechnology and its expansion in optoelectronics field the composites consisting of inorganic luminophore particles in nanometric size have attracted a lot of interest. Their superior properties arise from significant surface development which enhances the interaction between nanofiller and polymer at macromolecular level. Thin films of polyurethane nanocomposites with luminescent properties could be used as potential materials for document protection in optoelectronic applications. The materials for the optoelectronic applications should fullfill specific requirements such as: high intensity of photoemision and high transmittance.
The aim of this study was to obtain materials for fabrication of layers with high light transmission and high emission properties. To this end investigations were performed on nanocomposites based on polyurethanes of high elasticity in a wide temperature range, modified by addition of inorganic luminophors with nanometric particle size.An original technology has been developed for high-luminescence polyurethane matrix nano-composites with optimized content and dispersion of nano-fillers.
Presentation: Poster at Nanotechnologia PL, by Ewelina A. Zawadzak
See On-line Journal of Nanotechnologia PL
Submitted: 2010-03-25 10:20 Revised: 2010-06-22 08:03