Abstract
PVA/PA/NP hydrogel was prepared via freeze-thaw cycle method using poly(vinyl alcohol)(PVA) as raw material, phytic acid(PA) and amino-polyhedral oligomeric silsesquioxane(NH2-POSS, NP) as cross-linking agents. Then, PVA/PA/NP-PPy composite conductive hydrogel was prepared by in-situ polymerization of pyrrole, which overcomed the fragile and hydrophobic characteristics of polypyrrole materials, and further improved the conductivity and sensitivity of hydrogels. The cyclic tensile curve prove that the hydrogel has good self-recovery ability, the conductivity is as high as 7.53 S/m. It can be seen from the I-V curves that the highest detection current of the hydrogel as a flexible strain sensor can reach 9.029 mA and the gauge factor can reach 6.796. The results show that it can accurately monitor many kinds of tiny movements of human body through the change of current signal.
| Translated title of the contribution | Preparation and Properties of Poly(vinyl alcohol)/polypyrrole Composite Conductive Hydrogel Strain Sensor |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 929-936 |
| Number of pages | 8 |
| Journal | Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities |
| Volume | 42 |
| Issue number | 3 |
| DOIs | |
| State | Published - 10 Mar 2021 |
| Externally published | Yes |