Electrical resistivity and thermal conductivity properties of graphene‐coated woven fabrics

Manasoglu, Gizem; Celen, Rumeysa; Kanık, Mehmet; Ulcay, Yusuf

doi:10.1002/app.48024

Cited by 37 publications

(32 citation statements)

References 28 publications

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“…When the results were examined for 0.5 mm coatings, thermal conductivity values increased by 38%, 96%, and 262% for the GR50.5, GR100.5 and GR150.5 coded fabrics, respectively, compared to the R2.5 coded fabric. These results were consistent with other studies [14,15,24], showing that an increase in graphene concentration increases thermal conductivity.…”

Section: Thermal Conductivity and Spectrophotometry Resultssupporting

confidence: 93%

An Investigation on the Thermal and Solar Properties of Graphene-Coated Polyester Fabrics

et al. 2021

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In this study, coatings were made with graphene nanopowder in two different thicknesses (0.1 and 0.5 mm) at three different concentrations (50, 100 and 150 g/kg) on polyester woven fabrics. The effects of the coating thickness and graphene concentration were examined with optical and scanning electron microscopy (SEM) images. The thermal stability properties of the samples were also evaluated by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). Thermal conductivity was evaluated with two different principles: contact and radiant heat transfer, according to JIS R 2618 and EN ISO 6942, respectively. Solar measurements were performed with a Shimadzu UV-3600 Plus spectrophotometer. The graphene coating improved the thermal stability of the polyester fabrics. The solar absorbance value increased by 80% compared to reference fabrics, and reached approximately 90%. One of the important results was that the thermal conductivity coefficient increased by 87% and 262% for the two coating thicknesses, respectively.

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Section: Thermal Conductivity and Spectrophotometry Resultssupporting

confidence: 93%

An Investigation on the Thermal and Solar Properties of Graphene-Coated Polyester Fabrics

et al. 2021

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“…One way to introduce conductive cooling effect to textiles is to apply thermally conductive materials as coatings on the fiber surface. [54][55][56][57][58] Suitable materials should be able to offer great thermal conductivity and do not show adverse effect on radiative heat dissipation at the same time. Carbon-based materials, such as multi-walled carbon nanotubes (MWCNTs), 56 single-walled carbon nanotubes (SWCNTs), 57 and graphene 58 have been utilized for thermally conductive coating for textiles.…”

Section: Conductive Cooling Textiles With Enhanced Thermal Conductivitymentioning

confidence: 99%

“…[54][55][56][57][58] Suitable materials should be able to offer great thermal conductivity and do not show adverse effect on radiative heat dissipation at the same time. Carbon-based materials, such as multi-walled carbon nanotubes (MWCNTs), 56 single-walled carbon nanotubes (SWCNTs), 57 and graphene 58 have been utilized for thermally conductive coating for textiles. These materials exhibit both high thermal conductivity and emissivity.…”

Section: Conductive Cooling Textiles With Enhanced Thermal Conductivitymentioning

confidence: 99%

Advanced Textiles for Personal Thermal Management and Energy

Peng

Cui

2020

Joule

467

283

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To realize improved human body thermal comfort and reduce energy consumption on building heating and cooling, personal thermal management emphasizing energy management of human body and its local environment is emerging as a promising solution. Advanced textiles are being invented and developed to effectively regulate heat exchange between human body and its surroundings. Here, recent progress on advanced textiles for personal thermal management and its significance in energy efficiency are reviewed. We will mainly discuss textiles with engineered properties targeting at passively controlling human body heat dissipation routes, the active warming and/or cooling textiles, and the responsive textiles that offer adaptive personal thermal management ability according to the external stimuli. An outlook discussing important challenges and opportunities in this field is also presented.

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“…The electrical conductivity measurement of the conducting monofilaments and the conducting 3D-PPOT materials was executed through a hand-made four-wire system [ 7 ] and a standardized Keithley 8009 Resistivity Test Fixture [ 40 ] box respectively according to ASTM D 257 standard, connected to a Keithley 2461 SourceMeter (Beaverton, OR, USA). Although a voltage value from −0.5 V to 3 V with an increment of 0.5 V was applied to the material, the current intensity was measured.…”

Section: Methodsmentioning

confidence: 99%

Development of Flexible and Conductive Immiscible Thermoplastic/Elastomer Monofilament for Smart Textiles Applications Using 3D Printing

et al. 2020

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3D printing utilized as a direct deposition of conductive polymeric materials onto textiles reveals to be an attractive technique in the development of functional textiles. However, the conductive fillers—filled thermoplastic polymers commonly used in the development of functional textiles through 3D printing technology and most specifically through Fused Deposition Modeling (FDM) process—are not appropriate for textile applications as they are excessively brittle and fragile at room temperature. Indeed, a large amount of fillers is incorporated into the polymers to attain the percolation threshold increasing their viscosity and stiffness. For this reason, this study focuses on enhancing the flexibility, stress and strain at rupture and electrical conductivity of 3D-printed conductive polymer onto textiles by developing various immiscible polymer blends. A phase is composed of a conductive polymer composite (CPC) made of a carbon nanotubes (CNT) and highly structured carbon black (KB)- filled low-density polyethylene (LDPE) and another one of propylene-based elastomer (PBE) blends. Two requirements are essential to create flexible and highly conductive monofilaments for 3D-printed polymers onto textile materials applications. First, the co-continuity of both the thermoplastic and the elastomer phases and the location of the conductive fillers in the thermoplastic phase or at the interface of the two immiscible polymers are necessary to preserve the flexibility of the elastomer while decreasing the global amount of charges in the blends. In the present work based on theoretical models, when using a two-step melt process, the KB and CNT particles are found to be both preferentially located at the LDPE/PBE interface. Moreover, in the case of the two-step extrusion, SEM characterization showed that the KB particles were located in the LDPE while the CNT were mainly at the LDPE/PBE interface and TEM analysis demonstrated that KB and CNT nanoparticles were in LDPE and at the interface. For one-step extrusion, it was found that both KB and CNT are in the PBE and LDPE phases. These selective locations play a key role in extending the co-continuity of the LDPE and PBE phases over a much larger composition range. Therefore, the melt flow index and the electrical conductivity of monofilament, the deformation under compression, the strain and stress and the electrical conductivity of the 3D-printed conducting polymer composite onto textiles were significantly improved with KB and CNT-filled LDPE/PBE blends compared to KB and CNT-filled LDPE separately. The two-step extrusion processed 60%(LDPE16.7% KB + 4.2% CNT)/40 PBE blends presented the best properties and almost similar to the ones of the textile materials and henceforth, could be a better material for functional textile development through 3D printing onto textiles.

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Electrical resistivity and thermal conductivity properties of graphene‐coated woven fabrics

Cited by 37 publications

References 28 publications

An Investigation on the Thermal and Solar Properties of Graphene-Coated Polyester Fabrics

An Investigation on the Thermal and Solar Properties of Graphene-Coated Polyester Fabrics

Advanced Textiles for Personal Thermal Management and Energy

Development of Flexible and Conductive Immiscible Thermoplastic/Elastomer Monofilament for Smart Textiles Applications Using 3D Printing

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