Dually
Synergetic Network Hydrogels with Integrated Mechanical Stretchability,
Thermal Responsiveness, and Electrical Conductivity for Strain Sensors
and Temperature Alertors
Zhiwen Wang
Hongwei Zhou
Weixing Chen
Qiuzhao Li
Bo Yan
Xilang Jin
Aijie Ma
Hanbin Liu
Weifeng Zhao
10.1021/acsami.8b02060.s005
https://acs.figshare.com/articles/media/Dually_Synergetic_Network_Hydrogels_with_Integrated_Mechanical_Stretchability_Thermal_Responsiveness_and_Electrical_Conductivity_for_Strain_Sensors_and_Temperature_Alertors/6133724
The
first example of dually synergetic network hydrogel, which has integrated
mechanical stretchability, thermal responsiveness, and electrical
conductivity, has been constructed by a versatile and topological
co-cross-linking approach. Poly(<i>N</i>-isopropylacrylamide)
(PNIPAAm) is introduced as the thermally responsive ingredient, and
polyaniline (PANI) is selected as the electrically conductive ingredient.
PNIPAAm network is cross-linked by double-bond end-capped Pluronic
F127 (F127DA). PANI network is doped and cross-linked by phytic acid.
These two ingredients are further mechanically interlocked. Due to
the integrated multiple functionalities, the topologically co-cross-linked
hydrogels, as will be mentioned as F-PNIPAAm/PANI hydrogels, can be
fabricated into resistive-type strain sensors. The strain sensors
can achieve a gauge factor of 3.92, a response time of 0.4 s, and
a sensing stability for at least 350 cycles and can be further applied
for monitoring human motions, including motion of two hands, bending
of joints, and even swallowing and pulse rate. Moreover, F-PNIPAAm/PANI
hydrogels are utilized to construct efficient temperature alertors
based on the disconnection of circuits induced by volume shrinkage
at high temperature.
2018-04-02 00:00:00
strain sensors
Electrical Conductivity
Temperature Alertors
Strain Sensors
Dually Synergetic Network Hydrogels
response time
F 127DA PANI network
phytic acid
topologically co-cross-linked hydrogels
F-PNIPAAm
Thermal Responsiveness
350 cycles
conductive ingredient
double-bond end-capped Pluronic F 127
gauge factor
resistive-type strain sensors
pulse rate
PNIPAAm network
Integrated Mechanical Stretchability
dually synergetic network hydrogel
temperature alertors
topological co-cross-linking approach
volume shrinkage