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

Dimitar Valtakari, Roger Bollström, Mikko Tuominen, Hannu Teisala, Mikko Aromaa, Martti Toivakka, Jurkka Kuusipalo, Jyrki M. Mäkelä, Jun Uozumi, Jarkko J. Saarinen*

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review


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.

Original languageEnglish
Title of host publicationAIChE 2012 - 2012 AIChE Annual Meeting, Conference Proceedings
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
Event2012 AIChE Annual Meeting, AIChE 2012 - Pittsburgh, PA, United States
Duration: 28 Oct 20122 Nov 2012

Publication series

NameAIChE Annual Meeting, Conference Proceedings


Conference2012 AIChE Annual Meeting, AIChE 2012
Country/TerritoryUnited States
CityPittsburgh, PA


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