A highly flexible and multifunctional strain sensor based on a network-structured MXene/polyurethane mat with ultra-high sensitivity and a broad sensing range

Nanoscale ◽  
2019 ◽  
Vol 11 (20) ◽  
pp. 9949-9957 ◽  
Author(s):  
Kai Yang ◽  
Fuxing Yin ◽  
Dan Xia ◽  
Huifen Peng ◽  
Jinzheng Yang ◽  
...  

A highly flexible and stretchable network-structured MXene/polyurethane mat demonstrated ultra-high sensitivity and an ultra-wide sensing range for strain sensing.

2020 ◽  
Vol 8 (39) ◽  
pp. 20531-20542
Author(s):  
Shuhua Peng ◽  
Shuying Wu ◽  
Yuyan Yu ◽  
Philippe Blanloeuil ◽  
Chun H. Wang

A new highly sensitive and stretchable strain sensor with excellent linearity and optical transparency has been developed by toughening of microcracks within the thin conductive films.


2018 ◽  
Vol 2 (2) ◽  
pp. 355-361 ◽  
Author(s):  
Xi Fan ◽  
Naixiang Wang ◽  
Jinzhao Wang ◽  
Bingang Xu ◽  
Feng Yan

A stretchable plastic strain sensor was fabricated, showing high sensitivity and a broad strain-sensing region with good durability.


2020 ◽  
Vol 12 (15) ◽  
pp. 17691-17698 ◽  
Author(s):  
Yuxiang Li ◽  
Tengyu He ◽  
Liangjing Shi ◽  
Ranran Wang ◽  
Jing Sun

Author(s):  
Giang T. Pham ◽  
Alessio Colombo ◽  
Young-Bin Park ◽  
Chuck Zhang ◽  
Ben Wang

This paper presents the development of polymer-nanofiller systems as strain sensor materials and the development of novel sensor fabrication and characterization techniques. The developed sensor has shown to overcome the limitations of conventional strain sensors — having the capability to measure macroscale strains in any desired direction over a finite surface area, which may be subjected to combined loading modes, including tension, compression, flexure, and shear. They have sufficient flexibility and toughness to accommodate most curved surfaces and corners in components and structures. The methodologies use high aspect ratio multi-walled carbon nanotubes (MWNTs) in order to take advantage of their capability to form efficient conductive network. The results will lead to tailoring of sensor performance, particularly sensitivity factor, by controlling conductive network and optimizing sensor design and fabrication. To date, sensitivity factor of almost 20 at 1 wt.% of MWNTs in poly(methyl methacrylate) (PMMA) has been achieved. The developed sensor can be used in various military and commercial applications, including macroscale strain sensing over a wide surface area (e.g. aircraft skin), high sensitivity strain sensing on stiff components, and crack detection at critical stress concentrated regions for health monitoring.


2021 ◽  
Author(s):  
Suresh Nuthalapati ◽  
Vaishakh Kedambaimoole ◽  
Vijay Shirhatti ◽  
Saurabh Kumar ◽  
Hidekuni Takao ◽  
...  

2021 ◽  
pp. 004051752110441
Author(s):  
Qinghua Yu ◽  
Jinhua Jiang ◽  
Chuanli Su ◽  
Yaoli Huang ◽  
Nanliang Chen ◽  
...  

Flexible wearable strain sensors with excellent sensing performance have received widespread interest due to their superior application capability in the field of human-computer interaction, sports rehabilitation, and disease diagnosis. But at present, it is still a considerable challenge to exploit a flexible strain sensor with high sensitivity and wide sensing range that is easily manufactured, low-cost, and easily integrable into clothing. MXene is a promising material sensitive enough for flexible sensors due to its superior conductivity and hydrophilicity. The warp knitting weft insertion textile structure gives the fabric excellent elasticity, making it suitable as a flexible, stretchable substrate. Therefore, utilizing a polyester elastic fabric with a warp knitting weft insertion structure, a fabric strain sensor with high sensitivity and wide sensing range prepared by layer-by-layer self-assembly of polyvinyl alcohol layers and MXene layers is reported in this study. The strain sensor exhibits high sensitivity (up to 288.43), a wide sensing range (up to 50%), fast response time (50 ms), ultra-low detection limit (a strain of 0.067%), excellent cycle stability (1000 cycles), and good washability. Besides, affixing the MXene/polyvinyl alcohol/polyester elastic fabric strain sensor on the joints can detect the movement of limbs. Therefore, the MXene/polyvinyl alcohol/polyester elastic fabric strain sensor demonstrates potential application opportunities in smart wearable electronic devices, and the researcher can also apply this method in the production of other flexible, intelligent wearable devices.


Author(s):  
Bingbing Xu ◽  
Feng Ye ◽  
Ronghu Chen ◽  
Xiaogang Luo ◽  
Guangtao Chang ◽  
...  

2019 ◽  
Vol 7 (23) ◽  
pp. 7061-7072 ◽  
Author(s):  
Xiangying Meng ◽  
Songfang Zhao ◽  
Zhe Zhang ◽  
Ruliang Zhang ◽  
Jinhui Li ◽  
...  

Recently, it has become highly desirable but remains a challenge to design strain-sensing materials with rational geometric structures that endow the strain sensors high sensitivity, large stretchability and a broad sensing range simultaneously.


Sign in / Sign up

Export Citation Format

Share Document