Nanotechnology and graphene
Authors: 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
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.(0).