Effects of process parameters on mechanical properties of coated fabrics

Bulut, Yasemin; Sülar, Vildan

doi:10.1108/09556221111136476

Cited by 27 publications

(27 citation statements)

References 9 publications

(5 reference statements)

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“…The consideration of Figure 3 indicates that, after application of polymers, the elongation at break and tensile strength were decreased moderately, compared to the reference sample, i.e., elongation at break by 3–11% (warp) and 0.04–16% (weft), and tensile strength by 3–18% (warp) and 7–22% (weft). This could be explained by the fact that the coating penetrates the fabric sample and inhibits the mobility of the yarns in the fabric structure, causing the fabric to become more rigid and inflexible [ 21 , 22 ]. The fabric rigidity depends also on the characteristics of the polymers used, the application conditions, and undesired linkages between the coated fibres, so-called bridges.…”

Section: Resultsmentioning

confidence: 99%

The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

et al. 2020

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The selective metallisation of textiles is becoming a very important process in the development of electronic or e-textiles. This study investigated the efficacy of polymer coatings for the protection of copper (Cu) conductive tracks electroless plated on polyester (PES) fabric against laundering and rubbing, without essentially affecting the physical-mechanical and optical properties of the base material. After the electroless deposition of a consistent layer of Cu onto PES, four polymers were applied individually by screen-printing or padding. The physical-mechanical characterisation of coated textiles revealed that polyurethane resin (PUR) and modified acrylate resin (AR) had little effect on the air permeability, tensile strength and breaking tenacity of the PES, as compared to silicone elastomer polydimethylsiloxane (PDMS) and epoxy resin (ER). On the other hand, PUR and PDMS had higher abrasion resistance and photo-stability under prolonged UV irradiation, as compared to AR and ER. In addition, freshly Cu plated samples were coated with polymers, washed up to 30 cycles and characterised by measuring their electrical resistivity, determination of colour changes and the examination of the surface morphology. Based on these results, PUR presented the most suitable protection of Cu tracks on PES, with the lowest impact on physical-mechanical properties. ER is not recommended to be used for protection of Cu tracks on fabrics, due to its rigidity, low photo-stability, washing and wear durability.

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Section: Resultsmentioning

confidence: 99%

The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

et al. 2020

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“…The application of conductive polymer enlarged elongation at break and breaking tenacity of Co slightly, i.e., from 8.84 up to 9.58 (warp), from 14.64 up to 15.63 (weft), and from 477 up to 495 (warp), from 388 up to 400 (weft), respectively, and, on the other hand, reduced elongation at break of PES significantly, as well as enlarging tensile strength and breaking tenacity of PES drastically. Printing paste penetrates the fabric structure and prevents the yarns’ mobility, causing fabric’s rigidity and inflexibility [ 19 ], which is also connected with the composition of the paste, the type of fibres, and undesired linkages between treated fibres [ 4 ]. The admixture of binder into conductive paste influenced the mechanical properties of PES more negatively than Co.…”

Section: Resultsmentioning

confidence: 99%

Tailoring of Durable Conductive and UV-Shielding Properties on Cotton and Polyester Fabrics by PEDOT:PSS Screen-Printing

Ojstršek

Gorgieva

2020

Polymers

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In the present study, cotton (Co) and polyester (PES) fabrics were screen-printed with a conductive poly3,4-ethylenedioxythiophene:polystyrene sulfonate (PEDOT:PSS) printing paste along with a commercially-available screen-printing binder (SFXC) or waterborne polyurethane resin (WPU), in order to enhance wash and wear durability, and to improve some functional properties, without essentially influencing the physical–mechanical properties of the base material, as well as the introduced fabrics’ conductivity. The application of a conductive polymer coating reduced transmittance in the whole UV region drastically, indicating good UV-shielding ability in the treated fabrics. Moreover, the employed binders improved the fabrics’ protection against harmful solar UV radiation significantly, depending on the type of fibre and binder. Furthermore, the SFXC binder intensified the hydrophobicity of Co as compared to the WPU binder, and, on the other hand, WPU reduced the hydrophobicity of PES. Finally, the screen-printed fabrics were washed up to 20 cycles and rubbed up to 20,000 cycles, and characterised by means of mass loss determination and electrical resistivity measurement. Both binders enlarged polymer stability against the effect of washing and rubbing, depending on the number of cycles, the type and amount of employed binder, the type of fibres, and the thickness and uniformity of coatings.

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“…This is in agreement with previous results (Åkerfeldt et al 2013b) where it was concluded that increased amounts of binder polymers increased the brittleness of a PET substrate, making the yarns more brittle, whereas increased PEDOT:PSS and EG amounts led to increased ductility, with respect to tear strength and bending rigidity. The tear strength of textiles is generally deteriorated after coating because the coating glues the fibres together in bundles and reduces the mobility of the fibres/yarns vis-à-vis each other (Bulut and Sülar 2011). It is however highly interesting that coating B instead increased the tear strength of the samples and a possible explanation could be a plasticizing effect of coating B, i.e.…”

Section: Textile Properties and Durabilitymentioning

confidence: 87%

“…Some textile testing standards relevant for the application in this study were chosen: For coated textiles, it is particularly interesting to study the change in tear strength with the coating since this is the property that is most likely to differ (Bulut and Sülar 2011). The abrasion resistance can tell something of how well the coating remains on the textile during wear, but is not demanding enough to truly challenge most coatings.…”

Section: Introductionmentioning

confidence: 99%

Textile piezoelectric sensors – melt spun bi-component poly(vinylidene fluoride) fibres with conductive cores and poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) coating as the outer electrode

Åkerfeldt

Nilsson

Gillgard³

et al. 2014

Fashion and Textiles

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Textile piezoelectric sensors -melt spun bi-component poly(vinylidene fluoride) fibres with conductive cores and poly (3,4- AbstractThe work presented here addresses the outer electroding of a fully textile piezoelectric strain sensor, consisting of bi-component fibre yarns of β-crystalline poly(vinylidene fluoride) (PVDF) sheath and conductive high density polyethylene (HDPE)/carbon black (CB) core as insertions in a woven textile, with conductive poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS) coatings developed for textile applications. Two coatings, one with a polyurethane binder and one without, were compared for the application and evaluated as electrode material in piezoelectric testing, as well as tested for surface resistivity, tear strength, abrasion resistance and shear flexing. Both coatings served their function as the outer electrodes in the system and no difference in this regard was detected between them. Omission of the binder resulted in a surface resistivity one order of magnitude less, of 12.3 Ω/square, but the surface resistivity of these samples increased more upon abrasion than the samples coated with binder. The tear strength of the textile coated with binder decreased with one third compared to the uncoated substrate, whereas the tear strength of the coated textile without binder increased with the same amount. Surface resistivity measurements and scanning electron microscopy (SEM) images of the samples subjected to shear flexing showed that the coatings without the binder did not withstand this treatment, and that the samples with the binder managed this to a greater extent. In summary, both of the PEDOT:PSS coatings could be used as outer electrodes of the piezoelectric fibres, but inclusion of binder was found necessary for the durability of the coating.

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Effects of process parameters on mechanical properties of coated fabrics

Cited by 27 publications

References 9 publications

The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

Tailoring of Durable Conductive and UV-Shielding Properties on Cotton and Polyester Fabrics by PEDOT:PSS Screen-Printing

Textile piezoelectric sensors – melt spun bi-component poly(vinylidene fluoride) fibres with conductive cores and poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate) coating as the outer electrode

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