Design of <scp>MWCNTs</scp> and <scp>rGO</scp> co‐decorated elastic core‐spun yarn towards multifunctional flexible strain sensor with low detection limit and wide working range

Zhang, Mingguang; Feng, Peifeng; Lian, Xiuye; Zhao, Gang; Cheng, Liang; Li, Nan; Xu, Jing; Chen, Yousi; Jian, Xigao

doi:10.1002/app.54288

Cited by 3 publications

(1 citation statement)

References 45 publications

(65 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Structural health monitoring (SHM) is an automated system that enables real-time sensing, identification, and evaluation of structural safety and performance evolution [1]. It has found wide-ranging applications in aerospace, civil engineering, mechanical engineering, and other fields [2][3][4]. However, the current SHM systems primarily rely on rigid sensors, such as strain gauges, Fiber Bragg Gratings, and piezoelectric ceramics.…”

Section: Introductionmentioning

confidence: 99%

A high-performance, sensitive, low-cost LIG/PDMS strain sensor for impact damage monitoring and localization in composite structures

Lu,

Feng,

Wang

et al. 2024

Nanotechnology

View full text Add to dashboard Cite

Health monitoring of composite structures in aircraft is critical, as these structures are commonly utilized in weight-sensitive areas and innovative designs that directly impact flight safety and reliability. Traditional monitoring methods have limitations in monitoring area, strain limit, and signal processing. In this paper, a multifunctional sensor has been developed using acid-treated laser-induced graphene (A-LIG) with a multi-layer three-dimensional conductive network. Compared to untreated laser-induced graphene (U-LIG), the sensitivity of A-LIG sensor is increased by 100%. Furthermore, PDMS is used to fill the pores, which improves the fatigue performance of the A-LIG sensor. To obtain clear monitoring results, a data conversion algorithm is provided to convert the electrical signal obtained by the sensor into a strain field contour cloud map. The impact test of the A-LIG/PDMS sensor on the carbon fiber panel of the aircraft wing box segment verifies the effectiveness of its strain sensing. This work introduces a novel approach to fabricating flexible sensors with improved sensitivity, extended strain range, and cost-effectiveness. The sensor exhibits high sensitivity (gauge factor, GF≈364), is low hysteresis (~53 ms), and has a wide working range (up to 47%), and a highly stable and reproducible response over multiple test cycles (>20000) with good switching response. It presents a promising and innovative direction for utilizing flexible sensors in the field of aircraft structural health monitoring.

show abstract

Section: Introductionmentioning

confidence: 99%

A high-performance, sensitive, low-cost LIG/PDMS strain sensor for impact damage monitoring and localization in composite structures

Lu,

Feng,

Wang

et al. 2024

Nanotechnology

View full text Add to dashboard Cite

show abstract

Carbon nanotube composites fabricated through filament winding process for battery preheating application

Ma,

Zheng,

Wei

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

Carbon nanotube (CNT) polymer composites have broad application prospects in thermal management as electrothermal heaters. Nevertheless, challenge remains in achieving high electrical conductivity for the composites due to the contradiction between CNTs and insulated polymers. To address this issue, herein, innovative use of interface strategy approach by constructing synergistic nanomaterial networks on carboxyl CNTs yarn winding composites for improving the interfacial adhesion and electrical performance. In the work, carboxyl CNTs yarn/CNTs‐graphene oxide (GO) polyvinyl alcohol (PVA) composites (C‐CY‐HP‐C) were proposed and manufactured via filament winding process. The as‐constructed C‐CY‐HP‐C demonstrated a remarkable interfacial shear strength of 2057.16 N mm−1, which was 53.59% higher than that of control CNTs yarn/PVA winding composites. In addition, the C‐CY‐HP‐C achieved an attractive electrical conductivity of 346.39 S cm−1 owing to the electronic transmission channels were formed. Notably, the superior electrical conductivity facilitated a rapid‐response of electrothermal performance for the C‐CY‐HP‐C. It reached a steady‐state temperature of 229.9°C within 10 s when the voltage was 1.2 V. Concurrently, it exhibited an impressive heating rate of 10.8°C min−1 at an ambient temperature of −20°C as the battery surface heater. These findings shed light on the development of technique for battery preheating system based on CNTs yarn/polymer composites.

show abstract

High‐performance XSBR‐based flexible strain sensors enabled by pleated microcrack structure

Huang,

Wang,

Gong

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

Flexible strain sensors are attracting attention in areas such as medical monitoring sensing and rehabilitation therapy monitoring due to their powerful ability to sense, process, transmit and display complex information. However, it is an urgent challenge to realize the trade‐off between excellent performances such as high sensitivity, high linearity, wide strain sensing range and high durability. Herein, we prepare stretchable conductive composites with wrinkle composite micro‐crack structure by combining carboxystyrene butadiene rubber (XSBR) layer and carboxymethyl cellulose@Ag nanowire‐CNTs (CMC@AgNWs‐CNTs) conductive layer. Based on interfacial interactions, it can be adapted to different needs by adjusting the thickness of the strain sensing layer. When the thickness of the strain sensing layer is 4 μm, the strain sensor has a wide sensing range (strain capacity up to 300%) and high sensitivity (strain sensing factor of 484). At a thickness of 8 μm, the strain sensing performance exhibits a wide strain range, high linear fit and good cyclic stability. This work provides a new research idea to improve the comprehensive performance of flexible strain sensors and the contradiction between wide sensing range, high sensitivity and high linearity.

show abstract

Design of MWCNTs and rGO co‐decorated elastic core‐spun yarn towards multifunctional flexible strain sensor with low detection limit and wide working range

Cited by 3 publications

References 45 publications

A high-performance, sensitive, low-cost LIG/PDMS strain sensor for impact damage monitoring and localization in composite structures

A high-performance, sensitive, low-cost LIG/PDMS strain sensor for impact damage monitoring and localization in composite structures

Carbon nanotube composites fabricated through filament winding process for battery preheating application

High‐performance XSBR‐based flexible strain sensors enabled by pleated microcrack structure

Contact Info

Product

Resources

About