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Nanoporous kaolin – cellulose nanofibril composites for printed electronics

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Torvinen, K., Pettersson, F., Lahtinen, P., Arstila, K., Kumar, V., Osterbacka, R., Toivakka, M., & Saarinen, J. J. (2017). Nanoporous kaolin – cellulose nanofibril composites for printed electronics. Flexible and Printed Electronics, 2(2), Article 024004. https://doi.org/10.1088/2058-8585/aa6d97
Published in
Flexible and Printed Electronics
Authors
Torvinen, Katariina |
Pettersson, Fredrik |
Lahtinen, Panu |
Arstila, Kai |
Kumar, Vinay |
Osterbacka, Ronald |
Toivakka, Martti |
Saarinen, Jarkko J
Date
2017
Copyright
© 2017 IOP Publishing Ltd. This is a final draft version of an article whose final and definitive form has been published by IOP. Published in this repository with the kind permission of the publisher.

 
Cellulose nano- and microfibrils (CNF/CMF) grades vary significantly based on the raw materials and process treatments used. In this study four different CNF/CMF grades were combined with kaolin clay pigment particles to form nanoporous composites. The attained composite properties like porosity, surface smoothness, mechanical properties and density properties depended strongly on the raw materials used. In general, higher kaolin content (~80 wt%) led to controllable shrinkage during drying, which resulted in improved dimensional stability of composites, compared to a lower kaolin content (~50 wt%). On the other hand, the use of a plasticizer and a high amount of CNF/CMF was essential to produce adequate elasticity for the composites. The performance of transistors when fabricated on the nanoporous composites was strongly dependent on the raw materials used. The formation of the semiconductor layer was affected by the porosity, roughness, hydrophobicity, polarity and absorption properties of the top-most layer at the composite. The developed natural fiber-based substrates may be applied to novel value-added applications in intelligent products, such as sensors and simple displays. ...
Publisher
IOP Publishing
ISSN Search the Publication Forum
2058-8585
Keywords
cellulose nano- and microfibrils (CNF / CMF) kaolin pigment composite substrate nanoselluloosa tulostettava elektroniikka transistorit
DOI
https://doi.org/10.1088/2058-8585/aa6d97
URI

http://urn.fi/URN:NBN:fi:jyu-201707203335

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/26960899

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