Structure-tunable graphene oxide fibers via microfluidic spinning route for multifunctional textiles

Hu, Xiaoyun; Tian, Mingwei; Pan, Ning; Sun, Bing; Li, Zengqing; Ma, Yulong; Zhang, Xiansheng; Zhu, Shifeng; Chen, Zhihua; Qu, Lijun

doi:10.1016/j.carbon.2019.06.010

Cited by 65 publications

(50 citation statements)

References 35 publications

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“…Graphene (G) was prepared from the purified natural graphite by the modified Hummer's method described previously. [30][31][32][33] For preparing MPPU fibers, a poly (methyl methacrylate) (PMMA) plate with slit channel was fabricated using standard micro carving methods (Figure S1a) and sealed with another intact PMMA plate. The three inlet channels have a square cross-section (side length: h=300 μm), whereas the cross-section of coaxial channel is rectangle (side length: h=300 μm, w=600 μm), as seen in Figure S1b.…”

Section: Methodsmentioning

confidence: 99%

Multiscale Disordered Porous Fibers for Self-Sensing and Self-Cooling Integrated Smart Sportswear

et al. 2019

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Smart clothing has demonstrated potential applications in a wide range of wearable fields for human body monitoring and self-adaption. However, current wearable sensors often suffer from not seamlessly integrating with normal clothing, restricting sensing ability, and a negative wearing experience. Here, integrated smart clothing is fabricated by employing multiscale disordered porous elastic fibers as sensing units, which show the capability of inherently autonomous self-sensing (i.e., strain and temperature sensing) and self-cooling. The multiscale disordered porous structure of the fibers contributes to the high transparency of mid-infrared human body radiation and backscatter of visible light, which allows the microenvironment temperature between the skin and clothing to drop at least ∼2.5 °C compared with cotton fabrics. After the capillary-assisted adsorption of graphene inks, the modified porous fibers could also possess real-time strain and temperature-sensing capacities with a high gauge factor and thermal coefficient of resistance. As a proof of concept, the integrated smart sportswear achieved the measuring of body temperature, the tracking of large-scale limb movements, and the collection of subtle human physiological signals, along with the intrinsic self-cooling ability.

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Section: Methodsmentioning

confidence: 99%

Multiscale Disordered Porous Fibers for Self-Sensing and Self-Cooling Integrated Smart Sportswear

et al. 2019

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“…For instance, soft lithography has been widely used in a laboratory setting for producing microfluidic chips [8][9][10], but involves tedious procedures including mask design and fabrication, plasma bonding, as well as time-consuming slab alignment [11,12]. Alternatively, subtractive manufacturing techniques, such as laser cutting and micro-milling, can shorten the device production procedure [13][14][15][16], but usually require extensive device engineering [14]. Micro-drilling can generate circular channels, but the limited length of the drill bit has restricted the resultant spinnerets for fast coagulating fiber kinetics [13].…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Microfluidic Chips for 3D Hydrodynamic Focusing and Wet Spinning of Polymeric Fibers

et al. 2020

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Microfluidic wet spinning has gained increasing interest in recent years as an alternative to conventional wet spinning by offering higher control in fiber morphology and a gateway for the development of multi-material fibers. Conventionally, microfluidic chips used to create such fibers are fabricated by soft lithography, a method that requires both time and investment in necessary cleanroom facilities. Recently, additive manufacturing techniques were investigated for rapid and cost-efficient prototyping. However, these microfluidic devices are not yet matching the resolutions and tolerances offered by soft lithography. Herein, we report a facile and rapid method using selected arrays of hypodermic needles as templates within a silicone elastomer matrix. The produced microfluidic spinnerets display co-axially aligned circular channels. By simulation and flow experiments, we prove that these devices can maintain laminar flow conditions and achieve precise 3D hydrodynamic focusing. The devices were tested with a commercial polyurethane formulation to demonstrate that fibers with desired morphologies can be produced by varying the degree of hydrodynamic focusing. Thanks to the adaptability of this concept to different microfluidic spinneret designs—as well as to its transparency, ease of fabrication, and cost-efficient procedure—this device sets the ground for transferring microfluidic wet spinning towards industrial textile settings.

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“…Researchers have prepared graphene using different methods, including stripping [ 10 , 11 ], redox [ 12 , 13 , 14 ], chemical vapor deposition (CVD) [ 15 , 16 ], and epitaxial growth [ 17 , 18 ]. Graphene has found various applications in the fields of sensing [ 19 ], supercapacitors [ 20 ], optics, green chemistry, wearable sensors [ 21 , 22 , 23 ], and for medical purposes [ 24 ]. It also found a potential to be used as an antistatic agent on cotton fabrics [ 25 , 26 ], as a small amount of graphene provides a high antistatic effect at low temperatures and in humid conditions [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Active Graphene with Para-Ester on Cotton Fabrics for Antistatic Properties

Rothenberg

Zhang

et al. 2020

Nanomaterials

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The excellent electrical properties of graphene provide a new functional finishing idea for fabricating conductive cotton fabrics with antistatic properties. This work develops a novel method for synthesizing active graphene to make cotton fabrics conductive and to have antistatic properties. The graphite was oxidized to graphene oxide (GO) by the Hummers method, and was further acid chlorinated and reacted with the para-ester to form the active graphene (JZGO). JZGO was then applied to cotton fabrics and was bonded to the fiber surface under alkaline conditions. Characterizations were done using FT-IR, XRD and Raman spectroscopy, which indicated that the para-ester group was successfully introduced onto JZGO, which also effectively improved the water dispersibility and reactivity of the JZGO. Furthermore, this study found that the antistatic properties of the fabric were increased by more than 50% when JZGO was 3% by weight under low-humidity conditions. The washing durability of the fabrics was also evaluated.

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Structure-tunable graphene oxide fibers via microfluidic spinning route for multifunctional textiles

Cited by 65 publications

References 35 publications

Multiscale Disordered Porous Fibers for Self-Sensing and Self-Cooling Integrated Smart Sportswear

Multiscale Disordered Porous Fibers for Self-Sensing and Self-Cooling Integrated Smart Sportswear

Facile Fabrication of Microfluidic Chips for 3D Hydrodynamic Focusing and Wet Spinning of Polymeric Fibers

Synthesis of Active Graphene with Para-Ester on Cotton Fabrics for Antistatic Properties

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