Roll-to-roll processed nanocellulose coatings for barrier applications

Vinay Kumar, Axel Elfving, Hanna Koivula, Douglas Bousfield, Martti Toivakka

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

Abstract

Processing • Complex Theological behavior of CNF suspensions is used to help process them into uniform coating layers • The coating apparatus fluidizes the material and thereby enables application of thick and uniform CNF coatings • Addition of CMC was found useful for improving the coatability of CNF suspensions by way of improving the water retention and modifying the low shear rheology. Mechanical properties • CNF coating improves the strength properties to some extent even at very low coat weights. Barrier properties • The improvement in barrier properties of CNF coated paperboards with increasing coating thickness was substantial • CNF-coated paperboards demonstrated excellent barrier against air, heptane vapor, grease and mineral oil • WVTR also improved significantly with the CNF coating • Coating at higher CNF concentrations, and the impact of substrate and CNF type on the coating process will be addressed in future work.

Original languageEnglish
Title of host publicationTAPPI International Conference on Nanotechnology for Renewable Materials 2016
PublisherTAPPI Press
Pages615-623
Number of pages9
ISBN (Electronic)9781510828001
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
EventTAPPI International Conference on Nanotechnology for Renewable Materials 2016 - Grenoble, France
Duration: 14 Jun 201616 Jun 2016

Publication series

NameTAPPI International Conference on Nanotechnology for Renewable Materials 2016
Volume2

Conference

ConferenceTAPPI International Conference on Nanotechnology for Renewable Materials 2016
Country/TerritoryFrance
CityGrenoble
Period14/06/1616/06/16

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