Polyacrylamide/carboxymethyl chitosan double‐network hydrogels with high conductivity and mechanical toughness for flexible sensors

2021 ◽  
pp. 51993
Author(s):  
Runpeng Zeng ◽  
Shuxin Lu ◽  
Chuyi Qi ◽  
Lele Jin ◽  
Jinbao Xu ◽  
...  
Keyword(s):  
Carboxymethyl Chitosan ◽  
High Conductivity ◽  
Flexible Sensors ◽  
Double Network

scholarly journals Reduced Graphene Oxide-Based Double Network Polymeric Hydrogels for Pressure and Temperature Sensing

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 3162 ◽  
Author(s):  
Wei Liu ◽  
Xiaoyuan Zhang ◽  
Gang Wei ◽  
Zhiqiang Su
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Mechanical Deformation ◽  
Temperature Sensors ◽  
Carboxymethyl Chitosan ◽  
Temperature Sensitive ◽  
Facile Synthesis ◽  
Bending Properties ◽  
Double Network ◽  
Reduced Graphene

We demonstrate the fabrication of novel reduced graphene oxide (rGO)-based double network (DN) hydrogels through the polymerization of poly(N-isopropylacrylamide) (PNIPAm) and carboxymethyl chitosan (CMC). The facile synthesis of DN hydrogels includes the reduction of graphene oxide (GO) by CMC, and the subsequent polymerization of PNIPAm. The presence of rGO in the fabricated PNIPAm/CMC/rGO DN hydrogels enhances the compressibility and flexibility of hydrogels with respect to pure PNIPAm hydrogels, and they exhibit favorable thermoresponsivity, compressibility, and conductivity. The created hydrogels can be continuously cyclically compressed and have excellent bending properties. Furthermore, it was found that the hydrogels are pressure- and temperature-sensitive, and can be applied to the design of both pressure and temperature sensors to detect mechanical deformation and to measure temperature. Our preliminary results suggest that these rGO-based DN hydrogels exhibit a high potential for the fabrication of soft robotics and artificially intelligent skin-like devices.

Self-Powered Flexible Sensing System Based on Super-Tough, High Ionic Conductivity and Rapid Self-Recovery Fully Physically Crosslinked Double Network Hydrogel

2022 ◽  
Author(s):  
Shaoji Wu ◽  
Li Tang ◽  
Yue Xu ◽  
Guangcong Tang ◽  
Bailin Dai ◽  
...  
Keyword(s):  
Solid State ◽  
Power Supply ◽  
Electronic Devices ◽  
Flexible Sensors ◽  
Double Network ◽  
Sensing System ◽  
Wearable Electronic ◽  
Self Powered ◽  
Physically Crosslinked ◽  
Wearable Electronic Devices

At present, hydrogel flexible sensors have attracted wide attention in the field of wearable electronic devices. However, hydrogel flexible sensors need external solid state power supply to output stable signals....

Intrinsically adhesive, highly sensitive and temperature tolerant flexible sensors based on double network organohydrogels

2020 ◽  
pp. 127544
Author(s):  
Hongwei Zhou ◽  
Jialiang Lai ◽  
Xilang Jin ◽  
Hanbin Liu ◽  
Xusheng Li ◽  
...  
Keyword(s):  
Flexible Sensors ◽  
Double Network ◽  
Highly Sensitive

scholarly journals High Toughness Fully Physical Cross-Linked Double Network Organohydrogels for Strain Sensor with Anti-Freezing and Anti-Fatigue Property

2021 ◽  
Author(s):  
Li Tang ◽  
Shaoji Wu ◽  
Yue Xu ◽  
Ting Cui ◽  
Yuhua Li ◽  
...  
Keyword(s):  
Strain Sensor ◽  
Fatigue Property ◽  
Harsh Environment ◽  
Wearable Electronics ◽  
Flexible Sensors ◽  
Double Network ◽  
High Toughness ◽  
Conductive Hydrogels ◽  
Smart Wearable

Flexible sensors based on conductive hydrogels have been widely concerned in the field of smart wearable electronics due to the excellent stretchability and strain-responsive ability. However, lacking harsh environment tolerant...

Highly tough supramolecular double network hydrogel electrolytes for an artificial flexible and low-temperature tolerant sensor

2020 ◽  
Vol 8 (14) ◽  
pp. 6776-6784 ◽  
Author(s):  
Guoqi Chen ◽  
Jianren Huang ◽  
Jianfeng Gu ◽  
Shuijiao Peng ◽  
Xiaotong Xiang ◽  
...  
Keyword(s):  
Low Temperature ◽  
High Conductivity ◽  
Double Network

This work provides a novel and simple way to prepare hydrogel electrolytes with eminent toughness, high conductivity and anti-freezing properties.

Microgel-Enhanced Double Network Hydrogel Electrode with High Conductivity and Stability for Intrinsically Stretchable and Flexible All-Gel-State Supercapacitor

2018 ◽  
Vol 10 (23) ◽  
pp. 19323-19330 ◽  
Author(s):  
Yu Zhao ◽  
Shuo Chen ◽  
Jian Hu ◽  
Jiali Yu ◽  
Gengchao Feng ◽  
...  
Keyword(s):  
High Conductivity ◽  
Double Network
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