Use of mechanically ground lignocellulosic native fines (LF) in the all-cellulosic composite filaments

Fines properties and plasticizers

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Abstract: The influence of the physical and colloidal properties of W-stone ground lignocellulose native fines (LF) on the properties of lignocellulosic composite filaments was investigated. W-stone ground LF is a low-cost material exhibiting a microfibrillar structure with the chemical structure of native wood. The physical properties of manufactured LFs were investigated by utilising SEM imaging, turbidity measurements and image-based particle analysis using a Kajaani fibre analyser. The properties of LFs were varied by adjusting the process energy input that altered the produced material’s particle size and shape and subsequent fractionation with a wire. The reduction in particle size was observed to increase the colloidal stability of produced LFs, but no significant changes in the chemical profile of the LFs were observed. The effect of the properties of LF on the manufacture of composite filaments with carboxymethyl cellulose (CMC) was studied by using a dry-jet wet spinning approach. The smaller particle size had a positive effect on the mechanical properties of composite filaments (tenacity increased from 5.5 to up to 7.6 cN/tex). The compatibility of different plasticisers with LF–CMC composite filaments was also studied. It was observed that the number of free hydroxyls per a monomer unit of the plasticiser had a positive correlation with the plasticisation effect in the LF–CMC composite filaments. Regenerated cellulose filaments are often rather expensive to be used in many applications such as composites. The investigated filaments could thus be used in low-cost applications requiring a fully biodegradable material profile. Here, the presence of lignin may increase the structural compatibility of the produced matrix. Graphical abstract: [Figure not available: see fulltext.].
Original languageEnglish
Pages (from-to)1041-1054
Number of pages14
JournalCellulose
Volume26
Issue number2
Early online date24 Oct 2018
DOIs
Publication statusPublished - 30 Jan 2019
MoE publication typeNot Eligible

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Plasticizers
Composite materials
Particle size
Cellulose
Carboxymethylcellulose Sodium
Tenacity
Lignin
Turbidity
Fractionation
Hydroxyl Radical
Costs
Wood
Physical properties
Monomers
Wire
Imaging techniques
Mechanical properties
Scanning electron microscopy
Fibers

Keywords

  • Elongation
  • Energy consumption
  • Fibre
  • Filament
  • Fines
  • Particle size
  • Plasticizer
  • Strength
  • Tenacity

Cite this

@article{8c82a1df808e4a8e977d609677f05c06,
title = "Use of mechanically ground lignocellulosic native fines (LF) in the all-cellulosic composite filaments: Fines properties and plasticizers",
abstract = "Abstract: The influence of the physical and colloidal properties of W-stone ground lignocellulose native fines (LF) on the properties of lignocellulosic composite filaments was investigated. W-stone ground LF is a low-cost material exhibiting a microfibrillar structure with the chemical structure of native wood. The physical properties of manufactured LFs were investigated by utilising SEM imaging, turbidity measurements and image-based particle analysis using a Kajaani fibre analyser. The properties of LFs were varied by adjusting the process energy input that altered the produced material’s particle size and shape and subsequent fractionation with a wire. The reduction in particle size was observed to increase the colloidal stability of produced LFs, but no significant changes in the chemical profile of the LFs were observed. The effect of the properties of LF on the manufacture of composite filaments with carboxymethyl cellulose (CMC) was studied by using a dry-jet wet spinning approach. The smaller particle size had a positive effect on the mechanical properties of composite filaments (tenacity increased from 5.5 to up to 7.6 cN/tex). The compatibility of different plasticisers with LF–CMC composite filaments was also studied. It was observed that the number of free hydroxyls per a monomer unit of the plasticiser had a positive correlation with the plasticisation effect in the LF–CMC composite filaments. Regenerated cellulose filaments are often rather expensive to be used in many applications such as composites. The investigated filaments could thus be used in low-cost applications requiring a fully biodegradable material profile. Here, the presence of lignin may increase the structural compatibility of the produced matrix. Graphical abstract: [Figure not available: see fulltext.].",
keywords = "Elongation, Energy consumption, Fibre, Filament, Fines, Particle size, Plasticizer, Strength, Tenacity",
author = "Hannes Orelma and Atsushi Tanaka and Hille Rautkoski and Ilkka Nurminen and Jarmo Kouko and Antti Koponen",
year = "2019",
month = "1",
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doi = "10.1007/s10570-018-2091-x",
language = "English",
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T1 - Use of mechanically ground lignocellulosic native fines (LF) in the all-cellulosic composite filaments

T2 - Fines properties and plasticizers

AU - Orelma, Hannes

AU - Tanaka, Atsushi

AU - Rautkoski, Hille

AU - Nurminen, Ilkka

AU - Kouko, Jarmo

AU - Koponen, Antti

PY - 2019/1/30

Y1 - 2019/1/30

N2 - Abstract: The influence of the physical and colloidal properties of W-stone ground lignocellulose native fines (LF) on the properties of lignocellulosic composite filaments was investigated. W-stone ground LF is a low-cost material exhibiting a microfibrillar structure with the chemical structure of native wood. The physical properties of manufactured LFs were investigated by utilising SEM imaging, turbidity measurements and image-based particle analysis using a Kajaani fibre analyser. The properties of LFs were varied by adjusting the process energy input that altered the produced material’s particle size and shape and subsequent fractionation with a wire. The reduction in particle size was observed to increase the colloidal stability of produced LFs, but no significant changes in the chemical profile of the LFs were observed. The effect of the properties of LF on the manufacture of composite filaments with carboxymethyl cellulose (CMC) was studied by using a dry-jet wet spinning approach. The smaller particle size had a positive effect on the mechanical properties of composite filaments (tenacity increased from 5.5 to up to 7.6 cN/tex). The compatibility of different plasticisers with LF–CMC composite filaments was also studied. It was observed that the number of free hydroxyls per a monomer unit of the plasticiser had a positive correlation with the plasticisation effect in the LF–CMC composite filaments. Regenerated cellulose filaments are often rather expensive to be used in many applications such as composites. The investigated filaments could thus be used in low-cost applications requiring a fully biodegradable material profile. Here, the presence of lignin may increase the structural compatibility of the produced matrix. Graphical abstract: [Figure not available: see fulltext.].

AB - Abstract: The influence of the physical and colloidal properties of W-stone ground lignocellulose native fines (LF) on the properties of lignocellulosic composite filaments was investigated. W-stone ground LF is a low-cost material exhibiting a microfibrillar structure with the chemical structure of native wood. The physical properties of manufactured LFs were investigated by utilising SEM imaging, turbidity measurements and image-based particle analysis using a Kajaani fibre analyser. The properties of LFs were varied by adjusting the process energy input that altered the produced material’s particle size and shape and subsequent fractionation with a wire. The reduction in particle size was observed to increase the colloidal stability of produced LFs, but no significant changes in the chemical profile of the LFs were observed. The effect of the properties of LF on the manufacture of composite filaments with carboxymethyl cellulose (CMC) was studied by using a dry-jet wet spinning approach. The smaller particle size had a positive effect on the mechanical properties of composite filaments (tenacity increased from 5.5 to up to 7.6 cN/tex). The compatibility of different plasticisers with LF–CMC composite filaments was also studied. It was observed that the number of free hydroxyls per a monomer unit of the plasticiser had a positive correlation with the plasticisation effect in the LF–CMC composite filaments. Regenerated cellulose filaments are often rather expensive to be used in many applications such as composites. The investigated filaments could thus be used in low-cost applications requiring a fully biodegradable material profile. Here, the presence of lignin may increase the structural compatibility of the produced matrix. Graphical abstract: [Figure not available: see fulltext.].

KW - Elongation

KW - Energy consumption

KW - Fibre

KW - Filament

KW - Fines

KW - Particle size

KW - Plasticizer

KW - Strength

KW - Tenacity

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U2 - 10.1007/s10570-018-2091-x

DO - 10.1007/s10570-018-2091-x

M3 - Article

VL - 26

SP - 1041

EP - 1054

JO - Cellulose

JF - Cellulose

SN - 0969-0239

IS - 2

ER -