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Sethi, J., Glowacki, E., Reid, M. S., Larsson, P. A. & Wågberg, L. (2024). Ultra-thin parylene-aluminium hybrid coatings on nanocellulose films to resist water sensitivity. Carbohydrate Polymers, 323, 121365, Article ID 121365.
Open this publication in new window or tab >>Ultra-thin parylene-aluminium hybrid coatings on nanocellulose films to resist water sensitivity
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2024 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 323, p. 121365-, article id 121365Article in journal (Refereed) Published
Abstract [en]

Non-sustainable single-use plastics used for food packaging needs to be phased out. Films made from cellulose nanofibrils (CNFs) are suitable candidates for biodegradable and recyclable packaging materials as they exhibit good mechanical properties, excellent oxygen barrier properties and high transparency. Yet, their poor water vapour barrier properties have been a major hindrance in their commercialisation. Here, we describe the preparation of 25 μm thick CNF films with significantly improved water vapour barrier properties after deposition of ultrathin polymeric and metallic coatings, parylene C and aluminium, respectively. When first adding a 40 nm aluminium layer followed by an 80 nm parylene layer, i.e. with a combined thickness of less than one percent of the CNF film, a water vapour transmission rate of 2.8 g m−2 d−1 was achieved at 38 °C and 90 % RH, surpassing a 25 μm polypropylene film (4–12 g m−2 d−1). This is an improvement of more than 700 times compared to uncoated CNF films, under some of the harshest possible conditions a packaging material will need to endure in commercial use. The layers showed a good and even coverage, as assessed by atomic force microscopy, and the parylene-coated surfaces were hydrophobic with a contact angle of 110°, providing good water repellency.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Aluminium, Cellulose nanofibrils, Coatings, Parylene, Vapour deposition, Water vapour barrier
National Category
Condensed Matter Physics Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-337409 (URN)10.1016/j.carbpol.2023.121365 (DOI)001086726500001 ()2-s2.0-85172102025 (Scopus ID)
Note

QC 20231003

Available from: 2023-10-03 Created: 2023-10-03 Last updated: 2023-11-07Bibliographically approved
Jain, K., Wang, Z., Garma, L. D., Engel, E., Ciftci, G. C., Fager, C., . . . Wågberg, L. (2023). 3D printable composites of modified cellulose fibers and conductive polymers and their use in wearable electronics. APPLIED MATERIALS TODAY, 30, Article ID 101703.
Open this publication in new window or tab >>3D printable composites of modified cellulose fibers and conductive polymers and their use in wearable electronics
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2023 (English)In: APPLIED MATERIALS TODAY, ISSN 2352-9407, Vol. 30, article id 101703Article in journal (Refereed) Published
Abstract [en]

There are many bioelectronic applications where the additive manufacturing of conductive polymers may be of use. This method is cheap, versatile and allows fine control over the design of wearable electronic devices. Nanocellulose has been widely used as a rheology modifier in bio-based inks that are used to print electrical components and devices. However, the preparation of nanocellulose is energy and time consuming. In this work an easy-to-prepare, 3D-printable, conductive bio-ink; based on modified cellulose fibers and poly(3,4-ethylene dioxythiophene) poly(styrene sulfonate) (PEDOT:PSS), is presented. The ink shows excellent printability, the printed samples are wet stable and show excellent electrical and electrochemical performance. The printed structures have a conductivity of 30 S/cm, high tensile strains (>40%), and specific capacitances of 211 F/g; even though the PEDOT:PSS only accounts for 40 wt% of the total ink composition. Scanning electron microscopy (SEM), wide-angle X-ray scattering (WAXS), and Raman spectroscopy data show that the modified cellulose fibers induce conformational changes and phase separation in PEDOT:PSS. It is also demonstrated that wearable supercapacitors and biopotential-monitoring devices can be prepared using this ink.

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Dialcohol-modified cellulose fibers, 3D printing, Conducting polymer, PEDOT:PSS, Bioelectronics
National Category
Textile, Rubber and Polymeric Materials Materials Chemistry
Identifiers
urn:nbn:se:kth:diva-323583 (URN)10.1016/j.apmt.2022.101703 (DOI)000912019800001 ()2-s2.0-85143488124 (Scopus ID)
Note

QC 20230208

Available from: 2023-02-08 Created: 2023-02-08 Last updated: 2023-02-08Bibliographically approved
Kotov, N., Larsson, P. A., Jain, K., Abitbol, T., Cernescu, A., Wågberg, L. & Johnson, C. M. (2023). Elucidating the fine-scale structural morphology of nanocellulose by nano infrared spectroscopy. Carbohydrate Polymers, 302, Article ID 120320.
Open this publication in new window or tab >>Elucidating the fine-scale structural morphology of nanocellulose by nano infrared spectroscopy
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2023 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 302, article id 120320Article in journal (Refereed) Published
Abstract [en]

Nanoscale infrared (IR) spectroscopy and microscopy, enabling the acquisition of IR spectra and images with a lateral resolution of 20 nm, is employed to chemically characterize individual cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) to elucidate if the CNCs and CNFs consist of alternating crystalline and amorphous domains along the CNF/CNC. The high lateral resolution enables studies of the nanoscale morphology at different domains of the CNFs/CNCs: flat segments, kinks, twisted areas, and end points. The types of nano-cellulose investigated are CNFs from tunicate, CNCs from cotton, and anionic and cationic wood-derived CNFs. All nano-FTIR spectra acquired from the different samples and different domains of the individual nanocellulose particles resemble a spectrum of crystalline cellulose, suggesting that the non-crystalline cellulose signal observed in macroscopic measurements of nanocellulose most likely originate from cellulose chains present at the surface of the nanocellulose particles.

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Nanocellulose, Cellulose nanocrystals, Cellulose nanofibrils, Crystalline and amorphous domains, Nano-FTIR spectroscopy, S-SNOM
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-322846 (URN)10.1016/j.carbpol.2022.120320 (DOI)000891746700002 ()36604038 (PubMedID)2-s2.0-85142692194 (Scopus ID)
Note

QC 20230109

Available from: 2023-01-09 Created: 2023-01-09 Last updated: 2023-07-03Bibliographically approved
Lo Re, G., Engel, E. R., Bjorn, L., Sicairos, M. G., Liebi, M., Wahlberg, J., . . . Larsson, P. A. (2023). Melt processable cellulose fibres engineered for replacing oil-based thermoplastics. Chemical Engineering Journal, 458, 141372, Article ID 141372.
Open this publication in new window or tab >>Melt processable cellulose fibres engineered for replacing oil-based thermoplastics
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2023 (English)In: Chemical Engineering Journal, ISSN 1385-8947, E-ISSN 1873-3212, Vol. 458, p. 141372-, article id 141372Article in journal (Refereed) Published
Abstract [en]

If cellulosic materials are to replace materials derived from non-renewable resources, it is necessary to overcome intrinsic limitations such as fragility, permeability to gases, susceptibility to water vapour and poor three-dimensional shaping. Novel properties or the enhancement of existing properties are required to expand the applications of cellulosic materials and will create new market opportunities. Here we have overcome the well-known restrictions that impede melt-processing of high cellulose content composites. Cellulose fibres, partially derivatised to dialcohol cellulose, have been used to manufacture three-dimensional high-density materials by conventional melt processing techniques, with or without the addition of a thermoplastic polymer. This work demonstrates the use of melt processable chemically modified cellulose fibres in the preparation of a new generation of highly sustainable materials with tuneable properties that can be tailored for specific applications requiring complex three-dimensional parts.

Place, publisher, year, edition, pages
Elsevier BV, 2023
Keywords
Dialcohol cellulose, Melt processing, Cellulose composite, Ethylene acrylic acid copolymer
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-324327 (URN)10.1016/j.cej.2023.141372 (DOI)000923645900001 ()2-s2.0-85146173480 (Scopus ID)
Note

QC 20230227

Available from: 2023-02-27 Created: 2023-02-27 Last updated: 2023-02-27Bibliographically approved
Elf, P., Özeren, H. D., Larsson, P. A., Larsson, A., Wågberg, L., Nilsson, R., . . . Nilsson, F. (2023). Molecular Dynamics Simulations of Cellulose and Dialcohol Cellulose under Dry and Moist Conditions. Biomacromolecules, 24(6), 2706-2720
Open this publication in new window or tab >>Molecular Dynamics Simulations of Cellulose and Dialcohol Cellulose under Dry and Moist Conditions
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2023 (English)In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 24, no 6, p. 2706-2720Article in journal (Refereed) Published
Abstract [en]

The development of wood-based thermoplastic polymersthat can replacesynthetic plastics is of high environmental importance, and previousstudies have indicated that cellulose-rich fiber containing dialcoholcellulose (ring-opened cellulose) is a very promising candidate material.In this study, molecular dynamics simulations, complemented with experiments,were used to investigate how and why the degree of ring opening influencesthe properties of dialcohol cellulose, and how temperature and presenceof water affect the material properties. Mechanical tensile properties,diffusion/mobility-related properties, densities, glass-transitiontemperatures, potential energies, hydrogen bonds, and free volumeswere simulated for amorphous cellulosic materials with 0-100%ring opening, at ambient and high (150 degrees C) temperatures, withand without water. The simulations showed that the impact of ringopenings, with respect to providing molecular mobility, was higherat high temperatures. This was also observed experimentally. Hence,the ring opening had the strongest beneficial effect on "processability"(reduced stiffness and strength) above the glass-transition temperatureand in wet conditions. It also had the effect of lowering the glass-transitiontemperature. The results here showed that molecular dynamics is avaluable tool in the development of wood-based materials with optimalthermoplastic properties.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2023
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-330528 (URN)10.1021/acs.biomac.3c00156 (DOI)001005170600001 ()37166024 (PubMedID)2-s2.0-85160720609 (Scopus ID)
Note

QC 20231122

Available from: 2023-06-30 Created: 2023-06-30 Last updated: 2023-11-22Bibliographically approved
Atoufi, Z., Ciftci, G. C., Reid, M. S., Larsson, P. A. & Wågberg, L. (2022). Green Ambient-Dried Aerogels with a Facile pH-Tunable Surface Charge for Adsorption of Cationic and Anionic Contaminants with High Selectivity. Biomacromolecules, 23(11), 4934-4947
Open this publication in new window or tab >>Green Ambient-Dried Aerogels with a Facile pH-Tunable Surface Charge for Adsorption of Cationic and Anionic Contaminants with High Selectivity
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2022 (English)In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 23, no 11, p. 4934-4947Article in journal (Refereed) Published
Abstract [en]

The fabrication of reusable, sustainable adsorbents from low-cost, renewable resources via energy efficient methods is challenging. This paper presents wet-stable, carboxymethylated cellulose nanofibril (CNF) and amyloid nanofibril (ANF) based aerogel-like adsorbents prepared through efficient and green processes for the removal of metal ions and dyes from water. The aerogels exhibit tunable densities (18-28 kg m-3), wet resilience, and an interconnected porous structure (99% porosity), with a pH controllable surface charge for adsorption of both cationic (methylene blue and Pb(II)) and anionic (brilliant blue, congo red, and Cr(VI)) model contaminants. The Langmuir saturation adsorption capacity of the aerogel was calculated to be 68, 79, and 42 mg g-1for brilliant blue, Pb(II), and Cr(VI), respectively. Adsorption kinetic studies for the adsorption of brilliant blue as a model contaminant demonstrated that a pseudo-second-order model best fitted the experimental data and that an intraparticle diffusion model suggests that there are three adsorption stages in the adsorption of brilliant blue on the aerogel. Following three cycles of adsorption and regeneration, the aerogels maintained nearly 97 and 96% of their adsorption capacity for methylene blue and Pb(II) as cationic contaminants and 89 and 80% for brilliant blue and Cr(VI) as anionic contaminants. Moreover, the aerogels showed remarkable selectivity for Pb(II) in the presence of calcium and magnesium as background ions, with a selectivity coefficient more than 2 orders of magnitude higher than calcium and magnesium. Overall, the energy-efficient and sustainable fabrication procedure, along with good structural stability, reusability, and selectivity, makes these aerogels very promising for water purification applications.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2022
Keywords
Aerogels, Alginate, Aromatic compounds, Azo dyes, Calcium, Cellulose, Energy efficiency, Isotherms, Lead compounds, Magnesium, Metal ions, Nanofibers, Porosity, Reusability, Stability, Stripping (dyes), Adsorption capacities, Ambients, Anionic contaminants, Brilliant Blue, Calcium and magnesiums, Cationic contaminants, Energy efficient, Methylene Blue, Model contaminant, Tunables, Adsorption, aerogel, cellulose nanofiber, chromium, congo red, lead, metal ion, nanofiber, water, anion, cation, chromium hexavalent ion, adsorption kinetics, Article, atmospheric pressure, atomic force microscopy, confocal microscopy, controlled study, freeze drying, ionization, isotherm, oxidation, pH, pore volume, scanning electron microscopy, surface charge, thermogravimetry, titrimetry, water management, zeta potential, chemistry, kinetics, water pollutant, Azo Compounds, Anions, Cations, Hydrogen-Ion Concentration, Water Pollutants, Chemical
National Category
Materials Chemistry Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-329019 (URN)10.1021/acs.biomac.2c01142 (DOI)000879871700001 ()36318480 (PubMedID)2-s2.0-85141671200 (Scopus ID)
Note

QC 20230614

Available from: 2023-06-14 Created: 2023-06-14 Last updated: 2024-01-30Bibliographically approved
Mehandzhiyski, A. Y., Engel, E., Larsson, P. A., Re, G. L. & Zozoulenko, I. V. (2022). Microscopic Insight into the Structure-Processing-Property Relationships of Core-Shell Structured Dialcohol Cellulose Nanoparticles. ACS Applied Bio Materials, 5(10), 4793-4802
Open this publication in new window or tab >>Microscopic Insight into the Structure-Processing-Property Relationships of Core-Shell Structured Dialcohol Cellulose Nanoparticles
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2022 (English)In: ACS Applied Bio Materials, E-ISSN 2576-6422, Vol. 5, no 10, p. 4793-4802Article in journal (Refereed) Published
Abstract [en]

In the quest to develop sustainable and environmentally friendly materials, cellulose is a promising alternative to synthetic polymers. However, native cellulose, in contrast to many synthetic polymers, cannot be melt-processed with traditional techniques because, upon heating, it degrades before it melts. One way to improve the thermoplasticity of cellulose, in the form of cellulose fibers, is through chemical modification, for example, to dialcohol cellulose fibers. To better understand the importance of molecular interactions during melt processing of such modified fibers, we undertook a molecular dynamics study of dialcohol cellulose nanocrystals with different degrees of modification. We investigated the structure of the nanocrystals as well as their interactions with a neighboring nanocrystal during mechanical shearing, Our simulations showed that the stress, interfacial stiffness, hydrogen-bond network, and cellulose conformations during shearing are highly dependent on the degree of modification, water layers between the crystals, and temperature. The melt processing of dialcohol cellulose with different degrees of modification and/or water content in the samples was investigated experimentally by fiber extrusion with water used as a plasticizer. The melt processing was easier when increasing the degree of modification and/or water content in the samples, which was in agreement with the conclusions derived from the molecular modeling. The measured friction between the two crystals after the modification of native cellulose to dialcohol cellulose, in some cases, halved (compared to native cellulose) and is also reduced with increasing temperature. Our results demonstrate that molecular modeling of modified nanocellulose fibers can provide fundamental information on the structure-property relationships of these materials and thus is valuable for the development of new cellulose-based biomaterials.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2022
Keywords
core-shell structure, dialcohol cellulose, mechanical shearing, melt processing, molecular dynamics, Biomaterials, Cellulose derivatives, Chemical modification, Crystal structure, Hydrogen bonds, Nanocrystals, Natural fibers, Shells (structures), Synthetic polymers, Textile fibers, Cellulose fiber, Core shell, Core shell structure, Degree of modification, Native cellulose, Processing properties, Cellulose
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-328344 (URN)10.1021/acsabm.2c00505 (DOI)000870068600001 ()36194435 (PubMedID)2-s2.0-85139729184 (Scopus ID)
Note

QC 20230607

Available from: 2023-06-07 Created: 2023-06-07 Last updated: 2023-06-07Bibliographically approved
Görür, Y. C., Francon, H., Sethi, J., Maddalena, L., Montanari, C., Reid, M. S., . . . Wågberg, L. (2022). Rapidly Prepared Nanocellulose Hybrids as Gas Barrier, Flame Retardant, and Energy Storage Materials. ACS Applied Nano Materials, 5(7), 9188-9200
Open this publication in new window or tab >>Rapidly Prepared Nanocellulose Hybrids as Gas Barrier, Flame Retardant, and Energy Storage Materials
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2022 (English)In: ACS Applied Nano Materials, E-ISSN 2574-0970, Vol. 5, no 7, p. 9188-9200Article in journal (Refereed) Published
Abstract [en]

Cellulose nanofibril (CNF) hybrid materials show great promise as sustainable alternatives to oil-based plastics owing to their abundance and renewability. Nonetheless, despite the enormous success achieved in preparing CNF hybrids at the laboratory scale, feasible implementation of these materials remains a major challenge due to the time-consuming and energy-intensive extraction and processing of CNFs. Here, we describe a scalable materials processing platform for rapid preparation (<10 min) of homogeneously distributed functional CNF-gibbsite and CNF-graphite hybrids through a pH-responsive self-assembly mechanism, followed by their application in gas barrier, flame retardancy, and energy storage materials. Incorporation of 5 wt % gibbsite results in strong, transparent, and oxygen barrier CNF-gibbsite hybrid films in 9 min. Increasing the gibbsite content to 20 wt % affords them self-extinguishing properties, while further lowering their dewatering time to 5 min. The strategy described herein also allows for the preparation of freestanding CNF-graphite hybrids (90 wt % graphite) that match the energy storage performance (330 mA h/g at low cycling rates) and processing speed (3 min dewatering) of commercial graphite anodes. Furthermore, these ecofriendly electrodes can be fully recycled, reformed, and reused while maintaining their initial performance. Overall, this versatile concept combines a green outlook with high processing speed and material performance, paving the way toward scalable processing of advanced ecofriendly hybrid materials. 

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2022
Keywords
CNF, functional hybrids, gibbsite, green materials, nanocomposites, self-assembly, Dewatering, Energy storage, Environmental protection, Exfoliation (materials science), Film preparation, Graphene oxide, Graphite, Nanocellulose, Self assembly, Storage (materials), Supercapacitor, Cellulose nanofibrils, Eco-friendly, Energy storage materials, Functional hybrid, Gas barrier, Gibbsites, Hybrids material, Nano-cellulose, Processing speed, Hybrid materials, Energy, Hybrids, Materials, Performance, Processing, Storage, Water Removal
National Category
Materials Chemistry
Identifiers
urn:nbn:se:kth:diva-326185 (URN)10.1021/acsanm.2c01530 (DOI)000820597300001 ()2-s2.0-85135084223 (Scopus ID)
Note

QC 20230502

Available from: 2023-05-02 Created: 2023-05-02 Last updated: 2023-05-02Bibliographically approved
Rostami, J., Benselfelt, T., Maddalena, L., Avci, C., Sellman, F. A., Ciftci, G. C., . . . Wågberg, L. (2022). Shaping 90 wt% NanoMOFs into Robust Multifunctional Aerogels Using Tailored Bio-Based Nanofibrils. Advanced Materials, 34(38), Article ID 2204800.
Open this publication in new window or tab >>Shaping 90 wt% NanoMOFs into Robust Multifunctional Aerogels Using Tailored Bio-Based Nanofibrils
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2022 (English)In: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, Vol. 34, no 38, article id 2204800Article in journal (Refereed) Published
Abstract [en]

Metal–organic frameworks (MOFs) are hybrid porous crystalline networks with tunable chemical and structural properties. However, their excellent potential is limited in practical applications by their hard-to-shape powder form, making it challenging to assemble MOFs into macroscopic composites with mechanical integrity. While a binder matrix enables hybrid materials, such materials have a limited MOF content and thus limited functionality. To overcome this challenge, nanoMOFs are combined with tailored same-charge high-aspect-ratio cellulose nanofibrils (CNFs) to manufacture robust, wet-stable, and multifunctional MOF-based aerogels with 90 wt% nanoMOF loading. The porous aerogel architectures show excellent potential for practical applications such as efficient water purification, CO2 and CH4 gas adsorption and separation, and fire-safe insulation. Moreover, a one-step carbonization process enables these aerogels as effective structural energy-storage electrodes. This work exhibits the unique ability of high-aspect-ratio CNFs to bind large amounts of nanoMOFs in structured materials with outstanding mechanical integrity—a quality that is preserved even after carbonization. The demonstrated process is simple and fully discloses the intrinsic potential of the nanoMOFs, resulting in synergetic properties not found in the components alone, thus paving the way for MOFs in macroscopic multifunctional composites. 

Place, publisher, year, edition, pages
Wiley, 2022
Keywords
aerogels, cellulose nanofibrils, flame retardancy, gas adsorption and separation, metal–organic frameworks, supercapacitors, water purification, Aspect ratio, Carbonization, Crystalline materials, Gas adsorption, Hybrid materials, Nanocellulose, Nanofibers, Supercapacitor, Bio-based, Crystalline networks, Flame-retardancy, Gas adsorption and separations, High aspect ratio, Mechanical integrity, Metalorganic frameworks (MOFs), Nano-fibrils, Binders, Composites, Loading, Materials, Powder, Processes
National Category
Materials Chemistry
Identifiers
urn:nbn:se:kth:diva-326793 (URN)10.1002/adma.202204800 (DOI)000840897400001 ()35906189 (PubMedID)2-s2.0-85135930335 (Scopus ID)
Note

QC 20230515

Available from: 2023-05-15 Created: 2023-05-15 Last updated: 2023-05-15Bibliographically approved
Fall, A. B., Hagel, F., Edberg, J., Malti, A., Larsson, P. A., Wågberg, L., . . . Håkansson, K. M. (2022). Spinning of Stiff and Conductive Filaments from Cellulose Nanofibrils and PEDOT:PSS Nanocomplexes. ACS Applied Polymer Materials, 4(6), 4119-4130
Open this publication in new window or tab >>Spinning of Stiff and Conductive Filaments from Cellulose Nanofibrils and PEDOT:PSS Nanocomplexes
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2022 (English)In: ACS Applied Polymer Materials, ISSN 2637-6105, Vol. 4, no 6, p. 4119-4130Article in journal (Refereed) Published
Abstract [en]

Research in smart textiles is growing due to the increased demand from the healthcare sector and people's urge to keep track of and analyze the signals and metrics from their bodies. Electrically conductive filaments are the most fundamental material for smart textiles. These filaments can be imbued with functionalities and useful in fields like energy storage, sensing, and actuation. To be able to meet the requirements that the latter applications require, fabrication techniques must be developed to provide better processability and sustainability in a cost-effective manner. Here, a mixture of a conductive polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), and biobased cellulose nanofibrils (CNFs) was used to spin filaments utilizing a water-based process. These filaments show electrical conductivities up to 150 S/cm and tensile stiffness of 20 GPa. Interestingly, the PEDOT aligned to a similar degree as the CNFs during the spinning process without a drawing step, which is hypothesized to be caused by the attachment of PEDOT on the CNFs. Lastly, the filaments were tested in an organic electrochemical transistor (OECT) configuration, which resulted in a working device with an on/off ratio approaching 1500. Furthermore, the OECT exhibited stable behavior when changing temperature (20-80 °C) and relative humidity (40-80%). This aqueous spinning method, resulting in filaments with robust electronic properties in different temperature and humidity environments, show greats promise for future innovative smart textiles. 

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2022
Keywords
cellulose nanofibrils, filament, PEDOT:PSS, smart textile, spinning, water-based, Conducting polymers, Cost effectiveness, Electronic properties, Nanocellulose, Smart textiles, Spinning (fibers), Conductive filaments, Ethylenedioxythiophenes, Healthcare sectors, Nanocomplexes, Organic electrochemical transistors, Poly(3, 4-ethylenedioxythiophene):PSS, Water based, Nanofibers, Cellulose, Filaments, Humidity, Processes, Temperature, Textiles
National Category
Materials Engineering
Identifiers
urn:nbn:se:kth:diva-324574 (URN)10.1021/acsapm.2c00073 (DOI)000819922000001 ()2-s2.0-85131674019 (Scopus ID)
Note

QC 20230308

Available from: 2023-03-08 Created: 2023-03-08 Last updated: 2023-03-08Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-7410-0333

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