TUTCRIS - Tampereen teknillinen yliopisto


Conductive layers on surface modified natural fibre based substrates for printed functionality



OtsikkoAIChE 2012 - 2012 AIChE Annual Meeting, Conference Proceedings
TilaJulkaistu - 2012
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
Tapahtuma2012 AIChE Annual Meeting, AIChE 2012 - Pittsburgh, PA, Yhdysvallat
Kesto: 28 lokakuuta 20122 marraskuuta 2012


Conference2012 AIChE Annual Meeting, AIChE 2012
KaupunkiPittsburgh, PA


Formation of conductive surfaces by flexographical printing has been studied using an IGT test printer with PEDOT-PSS and Ag conductive inks on coated papers. Printability of multilayer coated paper and TiO2 nanoparticle coating generated by the liquid flame spray process are compared to commercial plastic film used in printed electronics applications. The wettability of TiO2 nanoparticle coating can be altered between superhydrophobic and superhydrophilic states by ultraviolet light. It is observed that superhydrophobicity induced by TiO2 nanoparticles results in poorer ink setting and hence lower conductivities with water-based PEDOT:PSS ink. Therefore, we observe conductivity only after several successive prints. On contrary, we observe several orders of magnitude better conductivities when using a silver ink in flexography. It is believed that sustainable natural fibre based substrates will find more applications in printed electronics application in the future.

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