1B1_0606_ PHOTOSWITCHABLE NANOMATERIALS FOR THE DESIGN OF LIGHT-RESPONSIVE SMART TEXTILES: FROM COATING TO ADVANCED FIBER-SPINNING TECHNOLOGY
- Tânia V. Pinto
- P. Costa
- C.M. Sousa
- D.M. Fernandes
- A. Guedes
- C. Silva
- M. F. R. Pereira
- P.J. Coelho
- C. Pereira
- C. Freire
Abstract
This work reviews our recent achievements on a novel generation of UV/sunlight responsive silica nanoparticles (SiO2 NPs) and smart textiles. Photoresponsive organic – 2H-naphtho[1,2-b]-pyran (2H-NPT) and 3H-naphtho[2,1-b]pyran (3H-NPT) derivatives – and inorganic – phosphomolybdic acid (PMo12) – compounds were selected to tune the photochromic response and color palette range of the SiO2 NPs and corresponding smart textiles. The SiO2 NPs were functionalized by covalent post-grafting of 2H-NPTs and 3H-NPTs, and by non-covalent electrostatic immobilization of PMo12. The resulting hybrids were incorporated onto fabric substrates by screen-printing and within fibers through advanced fiber-spinning processes − wet spinning and melt spinning − at pre-industrial scale.
Keywords: Photochromism, Light-responsive Silica Nanoparticles, Naphthopyrans, Polyoxometalates, Smart Textiles
How to Cite:
Pinto, T., Costa, P., Sousa, C., Fernandes, D., Guedes, A., Silva, C., Pereira, M., Coelho, P., Pereira, C. & Freire, C., (2019) “1B1_0606_ PHOTOSWITCHABLE NANOMATERIALS FOR THE DESIGN OF LIGHT-RESPONSIVE SMART TEXTILES: FROM COATING TO ADVANCED FIBER-SPINNING TECHNOLOGY”, Proceedings of the 19th World Textile Conference - Autex 2019 , 6. doi: https://doi.org/10.21825/autex.63816
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