Isolation and characterization of cellulose nanofibers from aspen wood using derivatizing and non-derivatizing pretreatments
Document identifier: oai:DiVA.org:ltu-76315
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10.1007/s10570-019-02754-wKeyword: Engineering and Technology,
Industrial Biotechnology,
Bio Materials,
Teknik och teknologier,
Industriell bioteknik,
Biomaterial,
Nanofibrillation,
Cellulose nanofiber,
Nanopaper,
TEMPO-oxidation,
Deep-eutectic solvents,
Carboxymethylation,
Trä och bionanokompositer,
Wood and BionanocompositesPublication year: 2020Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: The link between wood and corresponding cellulose nanofiber (CNF) behavior is complex owing the multiple chemical pretreatments required for successful preparation. In this study we apply a few pretreatments on aspen wood and compare the final CNF behavior in order to rationalize quantitative studies of CNFs derived from aspen wood with variable properties. This is relevant for efforts to improve the properties of woody biomass through tree breeding. Three different types of pretreatments were applied prior to disintegration (microfluidizer) after a mild pulping step; derivatizing TEMPO-oxidation, carboxymethylation and non-derivatizing soaking in deep-eutectic solvents. TEMPO-oxidation was also performed directly on the plain wood powder without pulping. Obtained CNFs (44–55% yield) had hemicellulose content between 8 and 26 wt% and were characterized primarily by fine (height ≈ 2 nm) and coarser (2 nm < height < 100 nm) grade CNFs from the derivatizing and non-derivatizing treatments, respectively. Nanopapers from non-derivatized CNFs had higher thermal stability (280 °C) compared to carboxymethylated (260 °C) and TEMPO-oxidized (220 °C). Stiffness of nanopapers made from non-derivatized treatments was higher whilst having less tensile strength and elongation-at-break than those made from derivatized CNFs. The direct TEMPO-oxidized CNFs and nanopapers were furthermore morphologically and mechanically indistinguishable from those that also underwent a pulping step. The results show that utilizing both derivatizing and non-derivatizing pretreatments can facilitate studies of the relationship between wood properties and final CNF behavior. This can be valuable when studying engineered trees for the purpose of decreasing resource consumption when isolation cellulose nanomaterials.
Authors
Simon Jonasson
Luleå tekniska universitet; Materialvetenskap
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Anne Bünder
Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
Other publications
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Totte Niittylä
Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
Other publications
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Kristiina Oksman
Luleå tekniska universitet; Materialvetenskap; Fibre and Particle Engineering, University of Oulu, Oulu, Finland. Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
Other publications
>>
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identifier: oai:DiVA.org:ltu-76315
datestamp: 2021-04-19T12:40:36Z
setSpec: SwePub-ltu
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recordInfo:
recordContentSource: ltu
recordCreationDate: 2019-10-09
identifier:
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76315
10.1007/s10570-019-02754-w
2-s2.0-85073980271
titleInfo:
@attributes:
lang: eng
title: Isolation and characterization of cellulose nanofibers from aspen wood using derivatizing and non-derivatizing pretreatments
abstract: The link between wood and corresponding cellulose nanofiber (CNF) behavior is complex owing the multiple chemical pretreatments required for successful preparation. In this study we apply a few pretreatments on aspen wood and compare the final CNF behavior in order to rationalize quantitative studies of CNFs derived from aspen wood with variable properties. This is relevant for efforts to improve the properties of woody biomass through tree breeding. Three different types of pretreatments were applied prior to disintegration (microfluidizer) after a mild pulping step; derivatizing TEMPO-oxidation carboxymethylation and non-derivatizing soaking in deep-eutectic solvents. TEMPO-oxidation was also performed directly on the plain wood powder without pulping. Obtained CNFs (44–55% yield) had hemicellulose content between 8 and 26 wt% and were characterized primarily by fine (height ≈ 2 nm) and coarser (2 nm < height < 100 nm) grade CNFs from the derivatizing and non-derivatizing treatments respectively. Nanopapers from non-derivatized CNFs had higher thermal stability (280 °C) compared to carboxymethylated (260 °C) and TEMPO-oxidized (220 °C). Stiffness of nanopapers made from non-derivatized treatments was higher whilst having less tensile strength and elongation-at-break than those made from derivatized CNFs. The direct TEMPO-oxidized CNFs and nanopapers were furthermore morphologically and mechanically indistinguishable from those that also underwent a pulping step. The results show that utilizing both derivatizing and non-derivatizing pretreatments can facilitate studies of the relationship between wood properties and final CNF behavior. This can be valuable when studying engineered trees for the purpose of decreasing resource consumption when isolation cellulose nanomaterials.
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Engineering and Technology
Industrial Biotechnology
Bio Materials
@attributes:
lang: swe
authority: uka.se
topic:
Teknik och teknologier
Industriell bioteknik
Biomaterial
@attributes:
lang: eng
topic: Nanofibrillation
@attributes:
lang: eng
topic: Cellulose nanofiber
@attributes:
lang: eng
topic: Nanopaper
@attributes:
lang: eng
topic: TEMPO-oxidation
@attributes:
lang: eng
topic: Deep-eutectic solvents
@attributes:
lang: eng
topic: Carboxymethylation
@attributes:
lang: swe
authority: ltu
topic: Trä och bionanokompositer
genre: Research subject
@attributes:
lang: eng
authority: ltu
topic: Wood and Bionanocomposites
genre: Research subject
language:
languageTerm: eng
genre:
publication/journal-article
ref
note:
Published
4
Validerad;2020;Nivå 2;2020-02-27 (alebob)
name:
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Jonasson
Simon
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affiliation:
Luleå tekniska universitet
Materialvetenskap
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simjon
0000-0002-1937-8527
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Bünder
Anne
role:
roleTerm: aut
affiliation: Umeå Plant Science Centre Department of Forest Genetics and Plant Physiology Swedish University of Agricultural Sciences Umeå Sweden
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Niittylä
Totte
role:
roleTerm: aut
affiliation: Umeå Plant Science Centre Department of Forest Genetics and Plant Physiology Swedish University of Agricultural Sciences Umeå Sweden
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authority: ltu
namePart:
Oksman
Kristiina
1959-
role:
roleTerm: aut
affiliation:
Luleå tekniska universitet
Materialvetenskap
Fibre and Particle Engineering University of Oulu Oulu Finland. Mechanical and Industrial Engineering University of Toronto Toronto Canada
nameIdentifier:
krioks
0000-0003-4762-2854
originInfo:
dateIssued: 2020
publisher: Springer
relatedItem:
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type: host
titleInfo:
title: Cellulose (London)
identifier:
0969-0239
1572-882X
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detail:
@attributes:
type: volume
number: 27
@attributes:
type: issue
number: 1
extent:
start: 185
end: 203
location:
url: http://ltu.diva-portal.org/smash/get/diva2:1359353/FULLTEXT01.pdf
accessCondition: gratis
physicalDescription:
form: electronic
typeOfResource: text