Fabrication of a wrinkled structure made of wearable polyacrylonitrile/polyurethane composite fibers with elastic sensing properties suitable for human movement detection

Lu, Wuji; Lü, Wangyang

doi:10.1002/pc.25635

Cited by 10 publications

(2 citation statements)

References 43 publications

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“…In recent years, with the emergence of applications such as health monitoring, , artificial electronic skin, , wearable electronic devices, and human motion assistance, wearable intelligent sensor technology , has rapidly developed. Two-component flexible sensors , have attracted attention due to their potential applications in intelligent devices, , have overcome the shortcomings of traditional sensors, such as high rigidity and slow response, and have shown great application prospects.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Graphene Thermally Responsive Double-Layer Composite Fibers via Dry Spinning for Wearable Intelligent Sensors

Ai,

Cheng,

et al. 2024

ACS Appl. Polym. Mater.

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This article reports an innovative method for using flexible, extremely sensitive double-layer composite fibers in thermal response sensors. A double-layer fiber sensor with dual corresponding effects is prepared by assembling poly(methyl methacrylate) (PMMA) and graphene layers using dry spinning. The sensor achieves sensitive thermal deformation ability by utilizing the bimetallic sheet principle and the difference in thermal expansion performance between the two materials. The sensor can respond to light stimuli by doping the graphene layer with TiO 2 and TiN. The reduced graphene oxide (rGO)/PMMA double-layer fiber thermal response sensor prepared by the chemical reduction of graphene has a fast response ability. When the relative temperature changes from 20 to 50 °C, the sensor response time averages within 2 s, and the bidirectional curvature change rate of the fiber material can reach a maximum of 300%. The sensor exhibits realtime, sensitive electrical performance changes under the stimulation of moisture or light temperature, demonstrating excellent stability and recyclability. Weaving double-layer fibers into two-dimensional (2D) fabrics and monitoring environmental temperature through changes in sensor deformation and electrical properties lays a solid theoretical foundation in thermal sensing and intelligent fabrics.

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Section: Introductionmentioning

confidence: 99%

Preparation of Graphene Thermally Responsive Double-Layer Composite Fibers via Dry Spinning for Wearable Intelligent Sensors

Ai,

Cheng,

et al. 2024

ACS Appl. Polym. Mater.

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“…When the fabric is deformed by an external force, the internal stress accumulated in the elastic polymer lm will prompt the fabric to bounce back quickly and return to the initial shape of the fabric after the withdrawal of external force. The elastic polymer materials incude polyurethane and modi ed polyurethane (Bertocchi et al 2019;Lu et al 2020), polyacrylate (Cheng et al 2020), organic Silicon(Gi and Sangmook 2017; Song et al 2019), etc. Among them, the silicone-based nishing agent can not only form a lm on the surface of the fabric to give the fabric elasticity, but also provide the fabric with a uffy and smooth feel style (Zhao and Zhang 2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of organosilicon resin containing disulfide bonds on elastic properties of cotton fabric

et al. 2022

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Cotton fabrics are popular for their excellent properties, but their property of creasing easily largely limits the wide application of cotton fabrics. In this paper, an organosilicon resin emulsion containing disul de bonds was prepared with epoxy-terminated silicone oil and 4,4-diaminodiphenyldisul de (AFD) as raw materials, and it was used as a nishing agent for the elastic nishing of cotton fabrics. The effects of raw material ratio on the elastic properties of organosilicon polymer lm and the effects of emulsi er dosage and emulsi cation time of emulsion polymerization on the properties of organosilicon resin emulsion were studied. In addition, the effects of organosilicon nishing agent dosage, baking temperature, and baking time on the elastic properties of cotton fabric were also studied. The research results show that the average particle size of the prepared organosilicon resin emulsion is about 250 nm, the particle size distribution is concentrated and the emulsion is stable. The delayed elastic recovery angle of the cotton fabric treated with an organosilicon nishing agent can reach 185°, showing excellent high delayed elasticity. At the same time, it was found that the nished cotton fabric exhibited an excellent and special temperature-responsive shape memory function based on the existence of disul de bonds in the organosilicon polymer network structure.

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Review of the Principles, Devices, Parameters, and Applications for Centrifugal Electrospinning

Chen

et al. 2022

Macro Materials & Eng

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Nanofibers have received extensive attention in the fields of biomedicine, energy catalysis, environmental sciences, and filtration owing to their high specific surface area and controllable porosity. Electrospinning and centrifugal spinning are the two most effective methods for fabricating nanofibers. However, the low preparation efficiency of electrospinning limits the use of that technology in the large-scale production of nanofibers. The morphology of nanofibers prepared by centrifugal spinning is slightly inferior to electrospinning. Centrifugal electrospinning has great industrial application potential. It is a new method for fabricating nanofibers formed by combining centrifugal and electrostatic forces. It can efficiently fabricate nanofibers with good alignment. In particular, the use of polymer melt as the spinning precursor for centrifugal electrospinning can effectively address the problem of solvent residue in the fiber. In this review, the working principle and device used for centrifugal electrospinning is introduced, the influence of different components of the spinning device on the spinning process is discussed, and the effects of spinning parameters on fiber properties are explained. Then, some applications of nanofibers fabricated are described by centrifugal electrospinning in various areas, including energy, biomedicine, and filtration. Finally, the challenges of centrifugal electrospinning are summarized, and a perspective on future research is provided.

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Fabrication of a wrinkled structure made of wearable polyacrylonitrile/polyurethane composite fibers with elastic sensing properties suitable for human movement detection

Cited by 10 publications

References 43 publications

Preparation of Graphene Thermally Responsive Double-Layer Composite Fibers via Dry Spinning for Wearable Intelligent Sensors

Preparation of Graphene Thermally Responsive Double-Layer Composite Fibers via Dry Spinning for Wearable Intelligent Sensors

Effect of organosilicon resin containing disulfide bonds on elastic properties of cotton fabric

Review of the Principles, Devices, Parameters, and Applications for Centrifugal Electrospinning

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