Review of flexible strain sensors based on cellulose composites for multi-faceted applications
- PDF / 2,740,434 Bytes
- 31 Pages / 547.087 x 737.008 pts Page_size
- 96 Downloads / 161 Views
(0123456789().,-volV) ( 01234567 89().,-volV)
REVIEW PAPER
Review of flexible strain sensors based on cellulose composites for multi-faceted applications Ziyang Chen . Tao Yan . Zhijuan Pan
Received: 29 June 2020 / Accepted: 15 October 2020 Ó Springer Nature B.V. 2020
Abstract Flexible strain sensors have attracted much attention due to their wide applications in human health monitoring, motion detection, human– computer interaction, and smart robots in recent years. Cellulose-based materials include cellulose fibers, cellulose nanofibers, cellulose nanocrystals, and cellulose derivatives such as methylcellulose, carboxymethyl cellulose, and cellulose acetate. They exhibit excellent properties and diverse functions that play key roles in the preparation of flexible strain sensors. The conductive networks of the cellulosebased composite materials are established by mixing or coating conductive materials or directly carbonizing the cellulose materials. This paper was divided into five parts according to the macroscopic forms of sensors, including fibers and yarns, films, papers, fabrics and gels. The materials, preparation methods, and structures of the flexible strain sensors are detailly compared and discussed. The solutions to the difficulties met in the preparation process are proposed. The sensing performance of the flexible strain sensors based on cellulose composite and their applications in Z. Chen T. Yan (&) Z. Pan College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China e-mail: [email protected] Z. Pan (&) National Engineering Laboratory for Modern Silk, Suzhou 215123, China e-mail: [email protected]
physiological signals and human motion detection are summarized. The potential applications and challenges during future development are analyzed. This review provides some suggestions and strategies for further development of flexible strain sensors based on cellulose composite for physiological signals and human motion detection. Keywords Cellulose Flexible strain sensors Conductive networks Sensing performances Multifaceted applications
Introduction With the development of society and the continuous improvement of corporeal living standards, humans pay more attention to physical health. Exercise has become one of the main ways for people to relax. We are more eager than ever to acquire various physiological data during exercise, smartwatch and wristband came into eyesight, but poor comfort and single function could not meet the real-time monitoring of various parts of the body (Lopez-Blanco et al. 2019). On the other hand, the deterioration of the environment and the aging trend of the population have made many chronic diseases gradually popularized, the health care system is facing severe challenges. While traditional medical monitoring equipment is bulky and
123
Cellulose
heavy, patients need to connect multiple wires for diagnosis and health monitoring. Large and expensive medical equipment and its cumbersome using steps not only increase the cost of he
Data Loading...
