High velocity dry spinning of nanofibrillated cellulose (CNF) filaments on an adhesion controlled surface with low friction

Yingfeng Shen, Hannes Orelma (Corresponding Author), Asko Sneck, Kirsi Kataja, Juha Salmela, Pia Qvintus, Anna Suurnäkki, Ali Harlin

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Abstract

A new process for preparing thin cellulose nanofibril (CNF) filaments (thickness of 16 µm) was investigated by utilizing the dry spinning approach. In the process, CNF hydrogel was extruded through a fine nozzle onto an adhesion controlled capstan (drum) with low friction (slippery surface) at a speed of up to 11 m/s. The utilized capstan enables excellent line speed control when the slippery surface is applied, and prevents drying shrinkage of the spun filaments. The mechanical properties of prepared filaments can be optimized with the stretch ratio, the ratio of the speed of the drum surface, and the CNF jet flow. The developed method allows for manufacturing thin CNF filaments with an elevated spinning rate in a more controlled manner.
Original languageEnglish
Pages (from-to)3393-3398
JournalCellulose
Volume23
Issue number6
DOIs
Publication statusPublished - 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Cellulose
Adhesion
Friction
Hydrogel
Speed control
Hydrogels
Nozzles
Drying
Mechanical properties

Keywords

  • CNF
  • dry-spinning
  • filament
  • SEM
  • spinning
  • tensile strength

Cite this

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title = "High velocity dry spinning of nanofibrillated cellulose (CNF) filaments on an adhesion controlled surface with low friction",
abstract = "A new process for preparing thin cellulose nanofibril (CNF) filaments (thickness of 16 µm) was investigated by utilizing the dry spinning approach. In the process, CNF hydrogel was extruded through a fine nozzle onto an adhesion controlled capstan (drum) with low friction (slippery surface) at a speed of up to 11 m/s. The utilized capstan enables excellent line speed control when the slippery surface is applied, and prevents drying shrinkage of the spun filaments. The mechanical properties of prepared filaments can be optimized with the stretch ratio, the ratio of the speed of the drum surface, and the CNF jet flow. The developed method allows for manufacturing thin CNF filaments with an elevated spinning rate in a more controlled manner.",
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author = "Yingfeng Shen and Hannes Orelma and Asko Sneck and Kirsi Kataja and Juha Salmela and Pia Qvintus and Anna Suurn{\"a}kki and Ali Harlin",
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High velocity dry spinning of nanofibrillated cellulose (CNF) filaments on an adhesion controlled surface with low friction. / Shen, Yingfeng; Orelma, Hannes (Corresponding Author); Sneck, Asko; Kataja, Kirsi; Salmela, Juha; Qvintus, Pia; Suurnäkki, Anna; Harlin, Ali.

In: Cellulose, Vol. 23, No. 6, 2016, p. 3393-3398.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - High velocity dry spinning of nanofibrillated cellulose (CNF) filaments on an adhesion controlled surface with low friction

AU - Shen, Yingfeng

AU - Orelma, Hannes

AU - Sneck, Asko

AU - Kataja, Kirsi

AU - Salmela, Juha

AU - Qvintus, Pia

AU - Suurnäkki, Anna

AU - Harlin, Ali

N1 - SDA: SHP: Bioeconomy

PY - 2016

Y1 - 2016

N2 - A new process for preparing thin cellulose nanofibril (CNF) filaments (thickness of 16 µm) was investigated by utilizing the dry spinning approach. In the process, CNF hydrogel was extruded through a fine nozzle onto an adhesion controlled capstan (drum) with low friction (slippery surface) at a speed of up to 11 m/s. The utilized capstan enables excellent line speed control when the slippery surface is applied, and prevents drying shrinkage of the spun filaments. The mechanical properties of prepared filaments can be optimized with the stretch ratio, the ratio of the speed of the drum surface, and the CNF jet flow. The developed method allows for manufacturing thin CNF filaments with an elevated spinning rate in a more controlled manner.

AB - A new process for preparing thin cellulose nanofibril (CNF) filaments (thickness of 16 µm) was investigated by utilizing the dry spinning approach. In the process, CNF hydrogel was extruded through a fine nozzle onto an adhesion controlled capstan (drum) with low friction (slippery surface) at a speed of up to 11 m/s. The utilized capstan enables excellent line speed control when the slippery surface is applied, and prevents drying shrinkage of the spun filaments. The mechanical properties of prepared filaments can be optimized with the stretch ratio, the ratio of the speed of the drum surface, and the CNF jet flow. The developed method allows for manufacturing thin CNF filaments with an elevated spinning rate in a more controlled manner.

KW - CNF

KW - dry-spinning

KW - filament

KW - SEM

KW - spinning

KW - tensile strength

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DO - 10.1007/s10570-016-1044-5

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VL - 23

SP - 3393

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JO - Cellulose

JF - Cellulose

SN - 0969-0239

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