Superhydrophobic and conductive polydimethylsiloxane/titanium dioxide@reduced graphene oxide coated cotton fabric for human motion detection

Gao, Shan; Li, Hongqiang; Zheng, Longzhu; Huang, Wei; Chen, Baodeng; Lai, Xuejun

doi:10.1007/s10570-021-03951-2

Cited by 13 publications

(8 citation statements)

References 56 publications

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“…The reported surface electrical resistance for this sample was 76 Ω cm −1 . [31] Cao et al dip-coated a silk fabric in a graphene oxide aqueous dispersion followed by the reduction of the coated fabric using sodium hydrosulfite. The surface electrical resistance of the coated silk fabric after nine cycles of repeated dipping and reducing processes was 3.2 kΩ cm −1 .…”

Section: Doi: 101002/admt202301492mentioning

confidence: 99%

“…The reported surface electrical resistance for this sample was 76 Ω cm −1 . [ 31 ] Cao et al. dip‐coated a silk fabric in a graphene oxide aqueous dispersion followed by the reduction of the coated fabric using sodium hydrosulfite.…”

Section: Introductionmentioning

confidence: 99%

“…The most conductive coated sample reported in their study had a sheet resistance of 0.05 kΩ. [ 34 ] Despite using graphene as a very conductive filler in these research works, [ 30–34 ] the resulting coated textiles did not have very high conductivity. This can be due to a) weak intermolecular interactions between graphene particles and textile substrates, b) the use of graphene oxide (GO) with more defects and lower conductivity than pure graphene, c) insulated gap between graphene particles in the coating, and d) low orientation and alignment of graphene particles in the coating.…”

Section: Introductionmentioning

confidence: 99%

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Developing Graphene‐based Conductive Textiles Using Different Coating Methods

Abdi,

Tarhini,

Baniasadi

et al. 2024

Adv Materials Technologies

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In this research, a series of graphene‐based conductive textiles is developed by three different coating methods, including dip‐coating (D), airbrushing (A), and filtration (F). The cellulose substrate consists of a blend of cotton and rayon fabric, and the coating formulation is based on a mixture of graphene powder as a conductive filler, polyurethane (PU) as a binder, and poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) as a thermoplastic co‐binder. The thermogravimetric analysis (TGA) results are used to prove an enhancement in the thermal stability of the coated fabrics. The graphene content of the coated samples is also estimated from the char residue at 800 °C of the TGA profiles. The graphene‐based coating converts the water‐adsorbing cellulose fabric to a hydrophobic surface as the water contact angle raises from 0° to more than 107° after coating. The mechanical properties of the plain cellulose fabric enhance considerably in terms of tensile strength and tensile modulus, where the highest improvement is seen in the Dip‐coating method, with an 89% increase in tensile strength compared to cellulose fabric. The graphene‐based coating developed in this work enhances the physical, thermal, mechanical, and conductivity properties of the plain cellulose substrate. The resulting coated fabrics can be potentially used in wearable smart electronic textiles.

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Section: Doi: 101002/admt202301492mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Developing Graphene‐based Conductive Textiles Using Different Coating Methods

Abdi,

Tarhini,

Baniasadi

et al. 2024

Adv Materials Technologies

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show abstract

“…Thanks to their numerous merits, such as fast curing speed, high crosslinking density, and low VOCs, various reports have been published for using UV-curable materials as SH coatings. [15][16][17][18] However, to the best of our knowledge, there is not any report about producing UV-cured SH coating with zero VOC. For example, Chen et al prepared waterborne UV-cured SH polyurethane coating, which could be exploited for oil/water separation thorough a pH-responsive switchable wettability mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…Coatings based on UV‐curable formulations are known as one of the most appropriate remedies for all mentioned issues. Thanks to their numerous merits, such as fast curing speed, high crosslinking density, and low VOCs, various reports have been published for using UV‐curable materials as SH coatings 15–18 . However, to the best of our knowledge, there is not any report about producing UV‐cured SH coating with zero VOC.…”

Section: Introductionmentioning

confidence: 99%

Eco‐friendly UV‐curable polyurethane‐silica superhydrophobic coating with superb mechanical durability

Gharieh

Pourghasem

2022

Polymers for Advanced Techs

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Herein, a facile, scalable, and cost‐effective method was used to fabricate eco‐friendly superhydrophobic UV‐curable polyurethane‐silica nanocomposite coating with promising physicomechanical properties. Fluorinated UV‐curable polyurethane dispersion was synthesized and used as the binder of the superhydrophobic coating along with hydrophobically modified silica nanoparticles as textured topography. The chemical structures of the employed silica nanoparticles, prepared UV‐curable polymer, and superhydrophobic coating were thoroughly studied by FTIR analysis. It has been revealed that the prepared SH coating possesses well‐defined micro/nano‐scale roughness, high contact angle (159°), and low sliding angle (1.5°), which can be applied onto various substrates. Also, the exceptional durability of the fabricated coating against sandpaper abrasion (over 80 m) without losing its superhydrophobicity revealed the high capability of the prepared waterborne coating to be used in harsh practical applications. Additionally, due to the highly cross‐linked structure of the prepared SH coating, the applied coating could maintain its integrity even after 30 days of immersion in different organic solvents. Moreover, the prepared coatings showed substantial potential for use in self‐cleaning and oil/water separation fields (> 98% efficiency after 15 cycles of oil/water separations). We are convinced that the prepared hybrid coating could offer a practical approach for fabricating of superhydrophobic materials as promising nominates for disparate fields.

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Multifunctional cotton fabric with durable antibacterial, superhydrophobicity, and UV resistance based on Ag@TiO2 Janus nanoparticles

Gao,

Wang,

Lyu

et al. 2024

Cellulose

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The market demand for multifunctional cotton fabric is increasing. However, the key of developing cotton fabric with multiple functions is how to solve the problem of functional combination. In this study, silver@titanium dioxide Janus nanoparticles (Ag@TiO 2 Janus nanoparticles) were synthesized by Pickering emulsion polymerization and nished on the epoxy modi ed cotton fabric (Ag@TiO 2 Janus/Ecotton fabric). The Ag@TiO 2 Janus nanoparticles had asymmetric Janus structure, that one side being silane with hydrophilic amino group was covalently bonded with the epoxy group on the cotton fabric bers and the other side being silane with hydrophobic long-chain alkane was faced the environment, which was to endow the cotton fabric durably superhydrophobic, UV resistance, and antibacterial. Characterization by SEM, XRD, EDS, EDS, FT-IR and TG veri ed the nishing of the cotton fabric with Ag@TiO 2 Janus nanoparticles. Ag@TiO 2 Janus/E-cotton fabric had a water contact angle of 160, after 50 wear cycles, the contact angle at the damaged part could still reach 152. Compared with raw cotton fabric, the antibacterial rate of Ag@TiO 2 Janus/E-cotton fabric to Escherichia coli (E. coli) and Streptococcus Urealyticus (S. aureus) is more than 95%. After 8 ultrasonic washing cycles, the antibacterial rate still maintained more than 80%. The UV protection performance of the nished cotton fabric was improved by 82.3%.Authors contributions Dangge Gao conceived the concept, supervised the project and provided nancial support and thoughts of manuscript. Fangxing Wang performed the experiment, prepared the samples and did the manuscript and analysis. Zhouyang Zhao performed the experiment and provided thought. Lyu Bin provided manuscript retouching and fund support. Jianzhong Ma provided the thought, manuscript retouching and fund.

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Superhydrophobic and conductive polydimethylsiloxane/titanium dioxide@reduced graphene oxide coated cotton fabric for human motion detection

Cited by 13 publications

References 56 publications

Developing Graphene‐based Conductive Textiles Using Different Coating Methods

Developing Graphene‐based Conductive Textiles Using Different Coating Methods

Eco‐friendly UV‐curable polyurethane‐silica superhydrophobic coating with superb mechanical durability

Multifunctional cotton fabric with durable antibacterial, superhydrophobicity, and UV resistance based on Ag@TiO2 Janus nanoparticles

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