Coating of multi-wall carbon nanotubes (MWCNTs) on three-dimensional, bicomponent nonwovens as wearable and high-performance piezoresistive sensors

Tian, Guangliang; Zhan, Lei; Deng, Jixia; Liu, Honggang; Li, Juan; Ma, Jiajia; Jin, Xiangyu; Ke, Qinfei; Huang, Chen

doi:10.1016/j.cej.2021.130682

Cited by 41 publications

(15 citation statements)

References 55 publications

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“…It is obvious in Figure d that the Ag NW10/PEDOT:PSS/PI sensor showed two pressure regions with different sensitivities and the sensor exhibited a GF of 0.31 kPa –1 in the range of 0–1.25 kPa and a value of 0.12 kPa –1 in the 1.25–2.79 kPa region, which is much higher than the sensitivity of most graphene aerogels previously reported in the relatively low stress range − (Table ). It is interesting to notice in Figure e that there is a perfect and stable linear relationship between the variation rate of aerogel resistance and compression strain.…”

Section: Resultsmentioning

confidence: 69%

Lightweight and Elastic Silver Nanowire/PEDOT:PSS/Polyimide Aerogels for Piezoresistive Sensors

Wang

Yue

et al. 2022

ACS Appl. Polym. Mater.

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Flexible piezoresistive sensors have been widely used in the fields of wearable electronic devices, electronic skin, intelligent human−computer interaction, health monitoring, life medicine research, intelligent robot, and so on. However, how to find a balance between stability, sensitivity, and sensing range, especially under the low-pressure range, is still an immediate challenge waiting to be solved. Herein, a highly flexible and compressible aerogel with a smooth layer structure was successfully fabricated by combining Ag nanowires into poly(3,4-ethylenedioxythiophene):polystyrene sulfonate and polyimide composites by casting and thermal annealing. As a result, the elastic aerogel with large reversible compressibility exhibited a good compression sensitivity of 0.31 kPa −1 in the pressure range of 0−1.25 kPa, high linearity of compression strain and resistance change rate, great fatigue resistance (height retention of 98−99% at 1000% strain/min), and large reversible compressibility (height retention of 90% after 200 compression cycles). The excellent performance of conductive aerogels shows their promising potential in the field of piezoelectric sensing.

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Section: Resultsmentioning

confidence: 69%

Lightweight and Elastic Silver Nanowire/PEDOT:PSS/Polyimide Aerogels for Piezoresistive Sensors

Wang

Yue

et al. 2022

ACS Appl. Polym. Mater.

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“…This delicate hierarchical structure is achieved by coaxial electrospinning (Figure b) and three-step surface modification, including ultrasonication-assisted decoration, in situ polymerization, and a dip-coating process. The mechanism for the decoration of the CNTs onto the surface of the PU shell has been explained in previous works . The large amount of heat generated by the ultrasonication make the fiber sheath (PU) melt and viscous, and the uniformly dissipated CNTs with a huge kinetic energy hit and in situ assemble on the surface of PU.…”

Section: Resultsmentioning

confidence: 99%

A Trimode Thermoregulatory Flexible Fibrous Membrane Designed with Hierarchical Core–Sheath Fiber Structure for Wearable Personal Thermal Management

Wang

Dong

et al. 2022

ACS Nano

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Advanced textiles designed for personal thermal management contribute to thermoregulation in an individual and energy-saving manner. Textiles incorporated with phase changing materials (PCMs) are capable of bridging the supply and demand for energy by absorbing and releasing latent heat. The integration of solar heating and the Joule heating function supplies multidriving resources, facilitates energy charging and storage, and expands the service time and application scenarios. Herein, we report a fibrous membrane-based textile that was developed by designing the hierarchical core−sheath fiber structure for trimode thermal management. Especially, coaxial electrospinning allows an effective encapsulation of PCMs, with high heat enthalpy density (106.9 J/g), enabling the membrane to buffer drastic temperature changes in the clothing microclimate. The favorable photothermal conversion performance renders the membrane with the high saturated temperature of 70.5 °C (1 sun), benefiting from the synergistic effect of multiple light harvesters. Moreover, a conductive coating endows the composite membrane with an admirable electrothermal conversion performance, reaching a saturated temperature of 73.8 °C (4.2 V). The flexible fibrous membranes with the integrated performance of reversible phase change, multi-source-driven heating, and energy storage present great advantages for all-day, energy-saving, and wearable individual thermal management applications.

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“…(f) (i) Schematic of the 3D nonwoven fabric-based piezoresistive sensor fabrication process, (ii) relative resistance change against 5000 compression/release cycles, and (iii) 40 h of washing. Reproduced with permission [185] Copyright 2021, Elsevier. (g) (i) Schematic of the 3D braided technology (ii-iv) Rectangular, Square and Toroidal shaped 3D TENG, respectively, (v,vi) Output voltage for prolonged operations (one month) and washability for 20 cycles.…”

Section: Fabric Shaped Durable E-textilesmentioning

confidence: 99%

“…The initial slight drop in RCR may be attributed to slight plastic deformation of the fiber under pressure. Furthermore, the pressure sensor could withstand 40 h of vigorous washing with an acceptable change in RCR (8.4%) (Figure 5f) [185]. Dong et al reported a 3D-shaped braided TENG via multiaxial winding of commercial silver-plated nylon yarn coated with PDMS.…”

Section: Fabric Shaped Durable E-textilesmentioning

confidence: 99%

Advances in the Robustness of Wearable Electronic Textiles: Strategies, Stability, Washability and Perspective

Sadi

Kumpikaitė

2022

Nanomaterials

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Flexible electronic textiles are the future of wearable technology with a diverse application potential inspired by the Internet of Things (IoT) to improve all aspects of wearer life by replacing traditional bulky, rigid, and uncomfortable wearable electronics. The inherently prominent characteristics exhibited by textile substrates make them ideal candidates for designing user-friendly wearable electronic textiles for high-end variant applications. Textile substrates (fiber, yarn, fabric, and garment) combined with nanostructured electroactive materials provide a universal pathway for the researcher to construct advanced wearable electronics compatible with the human body and other circumstances. However, e-textiles are found to be vulnerable to physical deformation induced during repeated wash and wear. Thus, e-textiles need to be robust enough to withstand such challenges involved in designing a reliable product and require more attention for substantial advancement in stability and washability. As a step toward reliable devices, we present this comprehensive review of the state-of-the-art advances in substrate geometries, modification, fabrication, and standardized washing strategies to predict a roadmap toward sustainability. Furthermore, current challenges, opportunities, and future aspects of durable e-textiles development are envisioned to provide a conclusive pathway for researchers to conduct advanced studies.

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Coating of multi-wall carbon nanotubes (MWCNTs) on three-dimensional, bicomponent nonwovens as wearable and high-performance piezoresistive sensors

Cited by 41 publications

References 55 publications

Lightweight and Elastic Silver Nanowire/PEDOT:PSS/Polyimide Aerogels for Piezoresistive Sensors

Lightweight and Elastic Silver Nanowire/PEDOT:PSS/Polyimide Aerogels for Piezoresistive Sensors

A Trimode Thermoregulatory Flexible Fibrous Membrane Designed with Hierarchical Core–Sheath Fiber Structure for Wearable Personal Thermal Management

Advances in the Robustness of Wearable Electronic Textiles: Strategies, Stability, Washability and Perspective

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