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Bashir, Tariq
Publications (10 of 50) Show all publications
Huniade, C., Bashir, T. & Persson, N.-K. (2023). A pilot line to functionalise textile fibres for textile actuators. In: : . Paper presented at EuroEAP 2023: Eleventh International Conference on Soft Transducers and Electromechanically Active Polymers, Bristol, June 6-8, 2023.
Open this publication in new window or tab >>A pilot line to functionalise textile fibres for textile actuators
2023 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Textile actuators are at their infancy within the field of electromechanically active polymers. Crude fabric coatings as well as coated pieces of yarns can certainly perform actuation. However, they do not fully consider the capabilities of textile processes and structures. To allow for such possibilities, it is required to have a sufficient supply of processable functional fibres. The presented pilot line is designed to produce said functional fibres from commercial textile yarns. The three continuous processes composing the pilot line are: the layered dip coating using a PEDOT:PSS based solution, the electrodeposition of polypyrrole (PPy) onto the PEDOT coated fibres, and the ultraviolet cured dip coating of ionogels (i.e. dipping followed by UV curing). The continuous aspect of the processes is a key element for fabric manufacturing. Indeed, even the smallest usable fabric requires a substantial length of yarn. This is one of the reasons why the produced fibres were tested on an industrial knitting machine, the other reason being to test their processability. Additionally, a series of tests have been done on the fibres to obtain their conductive, tensile and, if applicable, actuative properties. Therefore, we present a pilot line producing knittable PEDOT coated fibres, textile muscle fibres and ionofibres.

Keywords
textile fibres, continuous production, conducting polymers, ionic liquids, i-textiles
National Category
Textile, Rubber and Polymeric Materials
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-29916 (URN)
Conference
EuroEAP 2023: Eleventh International Conference on Soft Transducers and Electromechanically Active Polymers, Bristol, June 6-8, 2023
Projects
WEAFING
Funder
EU, Horizon 2020, 825232
Available from: 2023-06-16 Created: 2023-06-16 Last updated: 2023-06-21Bibliographically approved
Afroz, L., Rafaqat, M., Ahmad, M. A., Bashir, T., Naqvi, M., Abbas, G., . . . Raza, R. (2023). Nanocomposite Catalyst (1 – x)NiO-xCuO/yGDC for Biogas Fueled Solid Oxide Fuel Cells. ACS Applied Energy Materials, 6(21), 10918-10928
Open this publication in new window or tab >>Nanocomposite Catalyst (1 – x)NiO-xCuO/yGDC for Biogas Fueled Solid Oxide Fuel Cells
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2023 (English)In: ACS Applied Energy Materials, E-ISSN 2574-0962, Vol. 6, no 21, p. 10918-10928Article in journal (Refereed) Published
Abstract [en]

The composites of Ni–Cu oxides with gadolinium doped ceria (GDC) are emerging as highly proficient anode catalysts, owing to their remarkable performance for solid oxide fuel cells operated with biogas. In this context, the nanocomposite catalysts (1 – x)NiO-xCuO/yGDC (x = 0.2–0.8; y = 1,1.3) are synthesized using a solid-state reaction route. The cubic and monoclinic structures are observed for NiO and CuO phases, respectively, while CeO2 showed cubic fluorite structure. The scanning electron microscopic images revealed a rise in the particle size with an increase in the copper and GDC concentration. The optical band gap values are calculated in the range 2.82–2.33 eV from UV–visible analysis. The Raman spectra confirmed the presence of vibration modes of CeO2 and NiO. The electrical conductivity of the nanocomposite anodes is increased as the concentration of copper and GDC increased and reached at 9.48 S cm–1 for 0.2NiO-0.8CuO/1.3GDC composition at 650 °C. The electrochemical performance of (1 – x)NiO-xCuO/yGDC (x = 0.2–0.8; y = 1,1.3)-based fuel cells is investigated with biogas fuel at 650 °C. Among all of the as-synthesized anodes, the fuel cell with composition 0.2NiO-0.8CuO/1.3GDC showed the best performance, such as an open circuit voltage of 0.84 V and peak power density of 72 mW cm–2. However, from these findings, it can be inferred that among all other compositions, the 0.2NiO-0.8CuO/1.3GDC anode is a superior combination for the high electrochemical performance of solid oxide fuel cells fueled with biogas.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2023
Keywords
Catalysts, Electrical conductivity, Electrodes, Fuel cells, Oxides
National Category
Energy Engineering
Identifiers
urn:nbn:se:hb:diva-30858 (URN)10.1021/acsaem.3c01683 (DOI)001092802700001 ()2-s2.0-85177496723 (Scopus ID)
Available from: 2023-11-16 Created: 2023-11-16 Last updated: 2023-11-28Bibliographically approved
Dutta, S., Mehraeen, S., Martinez, J. G., Bashir, T., Persson, N.-K. & Jager, E. W. H. (2023). Textile Actuators Comprising Reduced Graphene Oxide as the Current Collector. Macromolecular materials and engineering
Open this publication in new window or tab >>Textile Actuators Comprising Reduced Graphene Oxide as the Current Collector
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2023 (English)In: Macromolecular materials and engineering, ISSN 1438-7492, E-ISSN 1439-2054Article in journal (Refereed) Epub ahead of print
Abstract [en]

Electronic textiles (E-textiles) are made using various materials including carbon nanotubes, graphene, and graphene oxide. Among the materials here, e-textiles are fabricated with reduced graphene oxide (rGO) coating on commercial textiles. rGO-based yarns are prepared for e-textiles by a simple dip coating method with subsequent non-toxic reduction. To enhance the conductivity, the rGO yarns are coated with poly(3,4-ethylene dioxythiophene): poly(styrenesulfonic acid) (PEDOT) followed by electrochemical polymerization of polypyrrole (PPy) as the electromechanically active layer, resulting in textile actuators. The rGO-based yarn actuators are characterized in terms of both isotonic displacement and isometric developed forces, as well as electron microscopy and resistance measurements. Furthermore, it is demonstrated that both viscose rotor spun (VR) and viscose multifilament (VM) yarns can be used for yarn actuators. The resulting VM-based yarn actuators exhibit high strain (0.58%) in NaDBS electrolytes. These conducting yarns can also be integrated into textiles and fabrics of various forms to create smart e-textiles and wearable devices. 

Keywords
actuator, e-textiles, graphene oxide, strain, viscose multifilament, viscose rotor spun
National Category
Textile, Rubber and Polymeric Materials Materials Chemistry
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-31025 (URN)10.1002/mame.202300318 (DOI)001108784700001 ()2-s2.0-85178101670 (Scopus ID)
Funder
EU, Horizon 2020, 825232Promobilia foundation, A21029Familjen Erling-Perssons Stiftelse, 2020‐0054
Available from: 2023-12-14 Created: 2023-12-14 Last updated: 2024-01-17Bibliographically approved
Huniade, C., Melling, D., Vancaeyzeele, C., Nguyen, T.-M. G., Vidal, F., Plesse, C., . . . Persson, N.-K. (2022). Ionofibers: Ionically Conductive Textile Fibers for Conformal i-Textiles. Advanced Materials Technologies
Open this publication in new window or tab >>Ionofibers: Ionically Conductive Textile Fibers for Conformal i-Textiles
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2022 (English)In: Advanced Materials Technologies, E-ISSN 2365-709XArticle in journal (Refereed) Published
Abstract [en]

With the rise of ion-based devices using soft ionic conductors, ionotronics show the importance of matching electronic and biological interfaces. Since textiles are conformal, an essential property for matching interfaces, light-weight and comfortable, they present as an ideal candidate for a new generation of ionotronics, i-textiles. As fibers are the building blocks of textiles, ionically conductive fibers, named ionofibers, are needed. However, ionofibers are not yet demonstrated to fulfill the fabric manufacturing requirements such as mechanical robustness and upscaled production. Considering that ionogels are known to be conformal films with high ionic conductivity, ionofibers are produced from commercial core yarns with specifically designed ionogel precursor solution via a continuous dip-coating process. These ionofibers are to be regarded as composites, which keep the morphology and improve the mechanical properties from the core yarns while adding the (ionic) conductive function. They keep their conductivity also after their integration into conformal fabrics; thus, an upscaled production is a likely outlook. The findings offer promising perspectives for i-textiles with enhanced textile properties and in-air electrochemical applications.

Keywords
bioelectronic interfaces, ionic conductivity, ionogels, ionotronics, textile fibers
National Category
Textile, Rubber and Polymeric Materials
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-27917 (URN)10.1002/admt.202101692 (DOI)000799031200001 ()2-s2.0-85130425979 (Scopus ID)
Projects
WEAFING
Funder
EU, Horizon 2020, 825232
Available from: 2022-05-24 Created: 2022-05-24 Last updated: 2022-09-19
Huniade, C., Mehraeen, S., Jager, E. W. H., Bashir, T. & Persson, N.-K. (2021). EMIm-OTf Ionogel Coated Fibres - Characterisation and Development, Aiming at Ionic Smart Textiles. In: : . Paper presented at 2021 Virtual MRS Spring Meeting, Symposium EL07: Bioelectronics - Fundamentals and Applications, Online, April 17-23, 2021.
Open this publication in new window or tab >>EMIm-OTf Ionogel Coated Fibres - Characterisation and Development, Aiming at Ionic Smart Textiles
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2021 (English)Conference paper, Poster (with or without abstract) (Other academic)
Abstract [en]

Ions are prevalent within bioelectronics, as they are the main charge carriers in living systems. In contrast to electronic systems, ionic ones are closer to what can be found in our body; in muscles, neurons and nerves.

Textiles are a much-used biomedical material, both in vivo and in vitro due to its membrane character, highly efficient area, softness, biocompatibility and biodegradability. Modifying the physicochemical properties of the core or the surface of textile has been reported a countless number of times, but still, its use in a bioelectrical context is limited.

Fibres are the building blocks of textiles and what make textiles an architected class of material. Then ionically conductive fibres are of great interest.

Here, we show the preparation of iono-conductive textile fibres through the (semi-)continuous dip-coating of ionogel on the cellulose-based viscose.

Ionogels are composed of salts in liquid state and a 3-dimensional solid network, in our case an ionic liquid (IL), 1-Ethyl-3-methylimidazolium trifluoromethanesulfonate, commonly named EMIm OTf or EMIm Triflate, and a thiol acrylate network, allowing the mobility of the ions within or in/out of the gel. This specific combination is a first effort towards the development of ionic textile fibres and ionic smart textiles, as a variety of ILs with different cations and anions exists, potentially allowing a large number of different combinations.

We investigate how the coating of this ionogel affects the mechanical properties as well as the conductivity in AC or DC arrangement and their relation to temperature and humidity. Also, the thermal stability and sensitivity of degradation of the fibre system is studied.

Moreover, we introduce different textile structures, and potential applications directed to bioelectronics.

Keywords
ionogels, fibre, coating, ionic conductors, ionic liquid, solid electrolyte, smart textiles
National Category
Textile, Rubber and Polymeric Materials
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-25360 (URN)
Conference
2021 Virtual MRS Spring Meeting, Symposium EL07: Bioelectronics - Fundamentals and Applications, Online, April 17-23, 2021
Projects
WEAFING
Funder
EU, Horizon 2020, 825232
Available from: 2021-04-29 Created: 2021-04-29 Last updated: 2021-11-30Bibliographically approved
Huniade, C., Melling, D., Vancaeyzeele, C., Nguyen, T.-M. G., Vidal, F., Plesse, C., . . . Persson, N.-K. (2021). Investigating ionic liquid-based click-ionogels by thiol-ene photopolymerisation onto textile yarns/fibres. In: : . Paper presented at XXV International IFATCC Congress, Textile & Chemistry [R]Evolution: New Generation Textiles & Process, Online, 27-29 April, 2021.
Open this publication in new window or tab >>Investigating ionic liquid-based click-ionogels by thiol-ene photopolymerisation onto textile yarns/fibres
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2021 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Electronic textiles’ primordial component are the connections that allow a circuit to be formed. As for today, the catalogue of conductive yarns is expanded to highly conductive metals such as copper, silver and steel, or electroconductive plastics composed of conductive polymers and electroconductive fillers such as metal particles or carbon allotropes.

Ionic liquids are also able to carry electrical charges, and their capacity to conduct electricity has yet to be investigated as a yarn component, e.g. an ion conducting coating.

Here, we report on attempts to coat ionic liquid-based click-ionogel on fibres, using thiol-ene reactions with the help of a photobase generator.

Ionogel precursors, composed of plurithiol precursors, acrylate monomers and a triflate ionic-liquid, are applied on yarn and then cured by UV irradiation, initiating the Michael reaction and creating the thiol-acrylate-triflate network around the yarn.

The aim of the present study is to prepare and characterise yarns coated with such ionogels, while developing a continuous yarn coating process.

Several different ionogel compositions and different yarn topologies are investigated, comparing their structure, electrical conductivity, mechanical properties, thermal stability, behaviour to chemical reagents, as well as the different surface tensions and interfacial interactions.

Textile processability is explored by the manufacture of simple fabrics.

An application for those ionic conductive coating is the ion supply for electroactive polymers coated yarns that currently rely on electrolytes. This novel coating will render the light-weight property of textile valuable, and therefore broadening their application as wearables.

Keywords
smart textiles, ionogel, ionic liquid, fibre coating, UV curing, thiol-ene photochemistry, ionic conductivity, textile processing
National Category
Textile, Rubber and Polymeric Materials
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-25366 (URN)
Conference
XXV International IFATCC Congress, Textile & Chemistry [R]Evolution: New Generation Textiles & Process, Online, 27-29 April, 2021
Projects
WEAFING
Funder
EU, Horizon 2020, 825232
Available from: 2021-04-29 Created: 2021-04-29 Last updated: 2021-04-29Bibliographically approved
Miankafshe, M. A., Bashir, T. & Persson, N.-K. (2020). Electrostatic grafting of graphene onto polyamide 6,6 yarns for use as conductive elements in smart textile applications. New Journal of Chemistry, 44(18), 7591-7601
Open this publication in new window or tab >>Electrostatic grafting of graphene onto polyamide 6,6 yarns for use as conductive elements in smart textile applications
2020 (English)In: New Journal of Chemistry, ISSN 1144-0546, E-ISSN 1369-9261, Vol. 44, no 18, p. 7591-7601Article in journal (Refereed) Published
Abstract [en]

Electrostatic graphene-grafted conductive yarns were prepared based on a scalable manufacturing method using conventional polyamide 6,6 (PA 6,6) multifilament yarns, common in the textile industry. Graphene oxide (GO) shows negative surface charge at any pH and PA 6,6 has an isoelectric point (IEP = pH|(zeta=0)) of 3.6. When GO and a polymer have the same charge sign, the resulting electrostatic interaction is repulsive and an electrostatic attraction does not arise until the polymer backbone has an oppositely charged sign compared to the GO nanosheets. To achieve this, yarns were modified with protonated chitosan (CS) followed by dip-coating with GO, resulting in electrostatic grafting of oxygen functional groups of GO onto amino groups of CS polymer chains. This coating process provides durable electrically conductive yarns (3 x 10(-2) to 4 x 10(-2) S m(-1)) with an excellent fastness to washing. It leads to the realization of graphene-grafted yarns as building elements of smart textiles, obtaining metal-free textile sensors. These yarns are capable of supplying power to an LED light using a 9 V battery and are expected to be an excellent candidate for feeding V-bed flat-knitting, Jacquard and raschel knitting machines. To achieve this, a wearable tactile sensor was designed and prepared using a flat-knitting machine and the sensor was characterized through electrical, mechanical, and electromechanical measurements.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2020
National Category
Materials Engineering
Identifiers
urn:nbn:se:hb:diva-24846 (URN)10.1039/c9nj06437k (DOI)000534076900037 ()2-s2.0-85086033253 (Scopus ID)
Available from: 2021-01-21 Created: 2021-01-21 Last updated: 2022-01-20Bibliographically approved
Asadi, M., Persson, N.-K. & Bashir, T. (Eds.). (2020). Graphene-modified E-textiles: An industry relevant approach of doping and visualizing fully textile P-N junction diodes. Paper presented at CIMTEC. Academica
Open this publication in new window or tab >>Graphene-modified E-textiles: An industry relevant approach of doping and visualizing fully textile P-N junction diodes
2020 (English)Conference proceedings (editor) (Other (popular science, discussion, etc.))
Abstract [en]

Recently, graphene has been used to obtain (E)-textiles. From an industry-relevant perspective, it is essential to introduce a process that could be scaled-up. We applied a cost-effective dip-coating method using bio-sourced agents for chemical adsorption of graphene oxide (GO). Polyester and viscose woven fabrics were treated with an aqueous solution of glycerol (4 g.L-1) to overcome the electrostatic repulsion among fibers and GO and then dip-coated with a dispersion of GO. The results are homogeneous GO coating with one to a few layers of GO nano-sheets. Further, The GO was chemically reduced to rGO, by using tannic acid (10 g.L-1) as a bio-sourced reducing agent. This brings electrical conductivity to rGO nano-sheets having an electrical resistance of 2±1 and 10±4 kΩ/sq for polyester and viscose fibers respectively. Afterward, these E-textiles are both p-type and n-type doped, using nitrogen plasma treatment to prepare nitrogen-doped graphene as a p-type E-textile and electrochemical deposition of titanium on graphene as n-type Doped E-textiles. This increases the charge carrier density, consequently increasing the conductivity of the graphene. Doping rGO-modified textiles open up a visualization of the p-n junction fully-textile diodes and its further applications.

Place, publisher, year, edition, pages
Academica, 2020
Keywords
GRAPHENE, WASTEWATER TREATMENT
National Category
Chemical Sciences
Identifiers
urn:nbn:se:hb:diva-25195 (URN)
Conference
CIMTEC
Note

CONFERENCE CANCELLED DUE TO THE PANDEMIC

Available from: 2021-03-23 Created: 2021-03-23 Last updated: 2021-04-28Bibliographically approved
Kalantar Mehrjerdi, A., Bashir, T. & Skrifvars, M. (2020). Melt rheology and extrudate swell properties of talc filled polyethylene compounds. Heliyon
Open this publication in new window or tab >>Melt rheology and extrudate swell properties of talc filled polyethylene compounds
2020 (English)In: Heliyon, E-ISSN 2405-8440Article in journal (Refereed) Published
Abstract [en]

An experimental study of high-density polyethylene (HDPE) composites filled with talc (0–15 wt.%) was carried out to investigate the rheological properties. The apparent melt viscosity, melt density, and die-swell ratio (B) of the composites were measured at constant shear stress and constant shear rate by using a melt flow indexer and capillary rheometer. The experimental conditions were set to a temperature range from 190 to 220 C for both apparatuses whereas a load range from 5 to 12.16 kg was selected for melt flow indexer and shear rate range from 1 to 10000 s1 for capillary rheometer. The initial study showed that the talc particulates did not influence the melt viscosity compared with the neat HDPE but decreased the elasticity of the polymer system. The HDPE/talc systems obeyed power-law model in shear stress–shear rate variations and were shear thinning, meanwhile, the die-swell increased with an increased wall shear rate and shear stress. The melt density of the composites increased linearly with an increase of the filler weight fraction and decreased with the increase of the testing temperature. The talc-HDPE composites showed compressible in the molten state.

Place, publisher, year, edition, pages
Elsevier, 2020
Keywords
Materials science, High-density polyethylene, Talc Melt viscosity, Melt density, Die swell
National Category
Engineering and Technology
Research subject
Resource Recovery
Identifiers
urn:nbn:se:hb:diva-23237 (URN)10.1016/j.heliyon.2020.e04060 (DOI)000537749900180 ()2-s2.0-85085337216 (Scopus ID)
Available from: 2020-05-27 Created: 2020-05-27 Last updated: 2024-02-01Bibliographically approved
Huniade, C., Mulder, R., Milad, A. M., Bashir, T. & Persson, N.-K. (2019). Disposable, green smart textiles based on conductive graphite fibres. In: : . Paper presented at 30th International Conference on Diamond and Carbon Materials Conference, Sevilla, September 8-12, 2019.
Open this publication in new window or tab >>Disposable, green smart textiles based on conductive graphite fibres
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2019 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Smart textiles, a part of the present boom of wearables, is at the risk of being a newenvironmental problem as many axioms of sustainability are violated here, that of driving(mass) consumption, mixing of components of different material origin and no obvious wastehandling system when used and worn out. Smartness has been synonymous with integration ofelectronic conductivity functionality, typically realised by metal wires. Carbon allomorphsshowing low electrical resistivity might be an environmental friendly alternative.

Here we report on attempts with simple conductive graphite systems from which we makeconductive textile fibres, the production of which could be up-scaled to industrial volumes.Coating textile bulk fibers as polyester, polyamide, wool and cellulose based regenerate onesrather than (melt/wet) spinning new fibers, the mechanical properties are sustained makingthem processable within existing textile processes infrastructure.

Several different graphite compositions and different yarn topologies are compared. Twisting isshown to greatly increase the overall yarn conductance. Fabrics are manufactured with thegraphite yarns in the double role of being structural as well as functional. Furthermore, analphabet of fundamental electrical circuitry elements are demonstrated; conductor, capacitor,inductor. The devices are consisting of non-toxic components that are disposable andcompostable; showing the benefits of carbon based soft electronics.

Keywords
graphite, smart textiles, fibre, sustainability
National Category
Textile, Rubber and Polymeric Materials
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-21770 (URN)
Conference
30th International Conference on Diamond and Carbon Materials Conference, Sevilla, September 8-12, 2019
Available from: 2019-09-24 Created: 2019-09-24 Last updated: 2019-10-14Bibliographically approved
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