Effect of micro- and nanofibrillated cellulose on the drying shrinkage, extensibility, and strength of fibre networks

Annika Ketola, Anders Strand, Anna Sundberg, Jarmo Kouko, Antti Oksanen, Kristian Salminen, Shiyu Fu, Elias Retulainen (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Elongation is an important property of many packaging board and paper grades. Paper with high extensibility could provide an alternative for oil-based packaging materials. Micro- (CMF) and nanofibrillated (CNF) cellulose are known to increase the strength of a paper, but their effect on the drying shrinkage and elongation is not well-studied. In this work, paper was reinforced with fibrillated material. Added fibrillated material increased the drying shrinkage, which was generally proportional to the increase of paper elongation before breakage. Results differed depending on the fibrillated material and how it was added to paper (wet-end addition or spray application). The papers were dried unrestrained in order to achieve the highest elongation potential for the paper. Spray application of CMF increased elongation by 13%, while wet-end additions increased elongation by 20% and also strength by 10%, but only with high dosages. Spray application of oxidized-CNF improved elongation by 33%, while wet-end applications increased only strength by 20%. Thus, boosting the drying shrinkage with fibrillated cellulose is one potential way to increase elongation and 3D formability of paper.
Original languageEnglish
Pages (from-to)5319-5342
JournalBioResources
Volume13
Issue number3
Publication statusPublished - 2018
MoE publication typeA1 Journal article-refereed

Fingerprint

Cellulose
cellulose
Elongation
Drying
spray
Fibers
breakage
Packaging materials
drying
fibre
effect
material
oil
Formability
Packaging
Oils
packaging

Keywords

  • elongation
  • drying shrinkage
  • tensile strength
  • fibre network
  • extensibility
  • fibre surface
  • fibre-fibre joints
  • bio-based products
  • fibrillated cellulose
  • packaging paper

Cite this

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title = "Effect of micro- and nanofibrillated cellulose on the drying shrinkage, extensibility, and strength of fibre networks",
abstract = "Elongation is an important property of many packaging board and paper grades. Paper with high extensibility could provide an alternative for oil-based packaging materials. Micro- (CMF) and nanofibrillated (CNF) cellulose are known to increase the strength of a paper, but their effect on the drying shrinkage and elongation is not well-studied. In this work, paper was reinforced with fibrillated material. Added fibrillated material increased the drying shrinkage, which was generally proportional to the increase of paper elongation before breakage. Results differed depending on the fibrillated material and how it was added to paper (wet-end addition or spray application). The papers were dried unrestrained in order to achieve the highest elongation potential for the paper. Spray application of CMF increased elongation by 13{\%}, while wet-end additions increased elongation by 20{\%} and also strength by 10{\%}, but only with high dosages. Spray application of oxidized-CNF improved elongation by 33{\%}, while wet-end applications increased only strength by 20{\%}. Thus, boosting the drying shrinkage with fibrillated cellulose is one potential way to increase elongation and 3D formability of paper.",
keywords = "elongation, drying shrinkage, tensile strength, fibre network, extensibility, fibre surface, fibre-fibre joints, bio-based products, fibrillated cellulose, packaging paper",
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Effect of micro- and nanofibrillated cellulose on the drying shrinkage, extensibility, and strength of fibre networks. / Ketola, Annika; Strand, Anders; Sundberg, Anna; Kouko, Jarmo; Oksanen, Antti; Salminen, Kristian; Fu, Shiyu; Retulainen, Elias (Corresponding Author).

In: BioResources, Vol. 13, No. 3, 2018, p. 5319-5342.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Ketola, Annika

AU - Strand, Anders

AU - Sundberg, Anna

AU - Kouko, Jarmo

AU - Oksanen, Antti

AU - Salminen, Kristian

AU - Fu, Shiyu

AU - Retulainen, Elias

PY - 2018

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