Ultrastretchable Helical Conductive Fibers Using Percolated Ag Nanoparticle Networks Encapsulated by Elastic Polymers with High Durability in Omnidirectional Deformations for Wearable Electronics

2020 ◽  
Vol 30 (29) ◽  
pp. 1910026 ◽  
Author(s):  
Janghoon Woo ◽  
Hyeokjun Lee ◽  
Changyoon Yi ◽  
Jaehong Lee ◽  
Chihyeong Won ◽  
...  
Keyword(s):  
Wearable Electronics ◽  
Ag Nanoparticle ◽  
High Durability ◽  
Conductive Fibers

scholarly journals Single-Layer Pressure Textile Sensors with Woven Conductive Yarn Circuit

2020 ◽  
Vol 10 (8) ◽  
pp. 2877 ◽  
Author(s):  
Gaeul Kim ◽  
Chi Cuong Vu ◽  
Jooyong Kim
Keyword(s):  
Pressure Sensor ◽  
Pressure Sensors ◽  
Single Layer ◽  
Fast Response ◽  
Resistance Change ◽  
Load Pressure ◽  
Pressure Sensitive ◽  
High Durability ◽  
Textile Sensors ◽  
Conductive Fibers

Today, e-textiles have become a fundamental trend in wearable devices. Fabric pressure sensors, as a part of e-textiles, have also received much interest from many researchers all over the world. However, most of the pressure sensors are made of electronic fibers and composed of many layers, including an intermediate layer for sensing the pressure. This paper proposes the model of a single layer pressure sensor with electrodes and conductive fibers intertwined. The plan dimensions of the fabricated sensors are 14 x 14 mm, and the thickness is 0.4 mm. The whole area of the sensor is the pressure-sensitive point. As expected, results demonstrate an electrical resistance change from 283 Ω at the unload pressure to 158 Ω at the load pressure. Besides, sensors have a fast response time (50 ms) and small hysteresis (5.5%). The hysteresis will increase according to the pressure and loading distance, but the change of sensor loading distance is very small. Moreover, the single-layer pressure sensors also show high durability under many working cycles (20,000 cycles) or washing times (50 times). The single-layer pressure sensor is very thin and more flexible than the multi-layer pressure sensor. The structure of this sensor is also expected to bring great benefits to wearable technology in the future.

scholarly journals High-Performance Wearable Strain Sensor Based on MXene@Cotton Fabric with Network Structure

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 889
Author(s):  
Lu Liu ◽  
Libo Wang ◽  
Xuqing Liu ◽  
Wenfeng Yuan ◽  
Mengmeng Yuan ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
High Performance ◽  
Mechanical Performance ◽  
Active Material ◽  
Large Body ◽  
Strain Sensor ◽  
Strain Range ◽  
Gauge Factor ◽  
Wearable Electronics ◽  
High Durability

Flexible and comfortable wearable electronics are as a second skin for humans as they can collect the physiology of humans and show great application in health and fitness monitoring. MXene Ti3C2Tx have been used in flexible electronic devices for their unique properties such as high conductivity, excellent mechanical performance, flexibility, and good hydrophilicity, but less research has focused on MXene-based cotton fabric strain sensors. In this work, a high-performance wearable strain sensor composed of two-dimensional (2D) MXene d-Ti3C2Tx nanomaterials and cotton fabric is reported. Cotton fabrics were selected as substrate as they are comfortable textiles. As the active material in the sensor, MXene d-Ti3C2Tx exhibited an excellent conductivity and hydrophilicity and adhered well to the fabric fibers by electrostatic adsorption. The gauge factor of the MXene@cotton fabric strain sensor reached up to 4.11 within the strain range of 15%. Meanwhile, the sensor possessed high durability (>500 cycles) and a low strain detection limit of 0.3%. Finally, the encapsulated strain sensor was used to detect subtle or large body movements and exhibited a rapid response. This study shows that the MXene@cotton fabric strain sensor reported here have great potential for use in flexible, comfortable, and wearable devices for health monitoring and motion detection.

Continuous dry–wet spinning of white, stretchable, and conductive fibers of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) and ATO@TiO2 nanoparticles for wearable e-textiles

2020 ◽  
Vol 8 (25) ◽  
pp. 8362-8367
Author(s):  
Chunxia Gao ◽  
Sisi He ◽  
Longbin Qiu ◽  
Mingxu Wang ◽  
Jiefeng Gao ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Wet Spinning ◽  
Wearable Electronics ◽  
Next Generation ◽  
Electronic Textiles ◽  
Daily Lives ◽  
Almost Everywhere ◽  
Mechanical Deformations ◽  
Conductive Fibers

Stretchable electronic textiles are urgently called for due to the emergence of next generation wearable electronics that can undergo various mechanical deformations that exist almost everywhere in our daily lives.

Smart E-textile: Resistance properties of conductive knitted fabric – Single pique

2016 ◽  
Vol 87 (14) ◽  
pp. 1669-1684 ◽  
Author(s):  
Su Liu ◽  
Jiahui Tong ◽  
Chenxiao Yang ◽  
Li Li
Keyword(s):  
Design Method ◽  
Geometric Model ◽  
Network Models ◽  
Added Value ◽  
Knitted Fabric ◽  
Wearable Electronics ◽  
Typical Structure ◽  
Resistive Network ◽  
Conductive Fibers ◽  
Knitted Structure

Wearable electronics textiles are a new emerging phenomenon. These are textiles that incorporate electrical properties, for example heating, light emitting, sensing, etc., and are now being rapidly developed due to the creation of new types of fibers and fiber composites. The different ways that can be used to combine conductive fibers with electronics components have been receiving much attention in wearable electronics research. However, to meet the requirements for both aesthetics and function, textiles technology and the garment design method are important for commercial success. In order to apply electronics to fabrics with the use of conductive fibers, complex and elastic fabric structures both need to be modeled. Therefore, the focus of this study is to examine the resistance properties of single pique, a fabric that is conductive and has a knitted structure that uses tuck stitches, a typical structure in knitting. A planar geometric model is established for a single pique structure based on the loop construction of this knitted fabric. Subsequently, resistive network models are developed for different cases of external voltages to calculate the resistance values of single pique fabrics with different numbers of wales and courses. Corresponding experiments are carried out to verify the proposed resistive network modeling. The newly developed resistance model in this study will provide significant benefits to the industrialization of wearable electronics textiles and the apparel industry as they can offer commercial apparel products that are not only aesthetically pleasing and multi-functional, but also have high added value.

Stretchable Conductive Fibers Based on a Cracking Control Strategy for Wearable Electronics

2018 ◽  
Vol 28 (29) ◽  
pp. 1801683 ◽  
Author(s):  
Bo Zhang ◽  
Jie Lei ◽  
Dianpeng Qi ◽  
Zhiyuan Liu ◽  
Yu Wang ◽  
...  
Keyword(s):  
Control Strategy ◽  
Wearable Electronics ◽  
Cracking Control ◽  
Conductive Fibers

Core–Sheath Stretchable Conductive Fibers for Safe Underwater Wearable Electronics

2019 ◽  
Vol 5 (1) ◽  
pp. 1900880 ◽  
Author(s):  
Yan Zhang ◽  
Weifeng Zhang ◽  
Guo Ye ◽  
Qishuo Tan ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Wearable Electronics ◽  
Conductive Fibers

Ultrasensitive and Stretchable Conductive Fibers Using Percolated Pd Nanoparticle Networks for Multisensing Wearable Electronics: Crack-Based Strain and H2 Sensors

2020 ◽  
Vol 12 (40) ◽  
pp. 45243-45253
Author(s):  
Chihyeong Won ◽  
Sanggeun Lee ◽  
Han Hee Jung ◽  
Janghoon Woo ◽  
Kukro Yoon ◽  
...  
Keyword(s):  
Wearable Electronics ◽  
Pd Nanoparticle ◽  
Conductive Fibers

Ag Nanowire Reinforced Highly Stretchable Conductive Fibers for Wearable Electronics

2015 ◽  
Vol 25 (21) ◽  
pp. 3114-3121 ◽  
Author(s):  
Seulah Lee ◽  
Sera Shin ◽  
Sanggeun Lee ◽  
Jungmok Seo ◽  
Jaehong Lee ◽  
...  
Keyword(s):  
Wearable Electronics ◽  
Highly Stretchable ◽  
Conductive Fibers ◽  
Ag Nanowire

scholarly journals PEDOT:PSS-Based Conductive Textiles and Their Applications

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 1881 ◽  
Author(s):  
Granch Berhe Tseghai ◽  
Desalegn Alemu Mengistie ◽  
Benny Malengier ◽  
Kinde Anlay Fante ◽  
Lieva Van Langenhove
Keyword(s):  
Conductive Polymers ◽  
Conductive Polymer ◽  
Polymer Complex ◽  
Wearable Electronics ◽  
Textile Processing ◽  
Storage Devices ◽  
Substrate Structure ◽  
Solution Spinning ◽  
Conductive Fibers ◽  
High Flexibility

The conductive polymer complex poly (3,4-ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS) is the most explored conductive polymer for conductive textiles applications. Since PEDOT:PSS is readily available in water dispersion form, it is convenient for roll-to-roll processing which is compatible with the current textile processing applications. In this work, we have made a comprehensive review on the PEDOT:PSS-based conductive textiles, methods of application onto textiles and their applications. The conductivity of PEDOT:PSS can be enhanced by several orders of magnitude using processing agents. However, neat PEDOT:PSS lacks flexibility and strechability for wearable electronics applications. One way to improve the mechanical flexibility of conductive polymers is making a composite with commodity polymers such as polyurethane which have high flexibility and stretchability. The conductive polymer composites also increase attachment of the conductive polymer to the textile, thereby increasing durability to washing and mechanical actions. Pure PEDOT:PSS conductive fibers have been produced by solution spinning or electrospinning methods. Application of PEDOT:PSS can be carried out by polymerization of the monomer on the fabric, coating/dyeing and printing methods. PEDOT:PSS-based conductive textiles have been used for the development of sensors, actuators, antenna, interconnections, energy harvesting, and storage devices. In this review, the application methods of PEDOT:SS-based conductive polymers in/on to a textile substrate structure and their application thereof are discussed.

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