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Synthesis and Studies of PAM-Ag-g/WSsub.2/Tisub.3Csub.2Tsub.x Hydrogel and Its Possible Applications
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Synthesis and Studies of PAM-Ag-g/WSsub.2/Tisub.3Csub.2Tsub.x Hydrogel and Its Possible Applications
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Synthesis and Studies of PAM-Ag-g/WSsub.2/Tisub.3Csub.2Tsub.x Hydrogel and Its Possible Applications
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Journal Article
Synthesis and Studies of PAM-Ag-g/WSsub.2/Tisub.3Csub.2Tsub.x Hydrogel and Its Possible Applications
2025
Overview
In this study, a new hybrid hydrogel based on PAM (polyacrylamide)-Ag-g/WS[sub.2]/Ti[sub.3]C[sub.2]T[sub.x] was synthesized by radical polymerization using a conductive heterostructural nanocomposite WS[sub.2]/Ti[sub.3]C[sub.2]T[sub.x]. The synergy between the polymer matrix and the interface between two-dimensional nanomaterials ensured the production of a hydrogel with high extensibility and conductivity, as well as sensory characteristics. The composite hydrogel exhibited excellent strain-sensing capabilities, with gauge factors of 1.4 at low strain and 2.8 at higher strain levels. In addition, the material showed a fast response time of 2.17 s and a short recovery time of 0.46 s under cyclic stretching, which confirms its high reliability and reproducibility. The integration of Ti[sub.3]C[sub.2]T[sub.x] and WS[sub.2] promoted the formation of a conductive network in the hydrogel structure, which simultaneously increased its mechanical strength and signal stability under variable loads. Measurements confirm some potential of the PAM-Ag-g/WS[sub.2]/Ti[sub.3]C[sub.2]T[sub.x] composite hydrogel as a flexible wearable strain sensor. Based on measured numbers, we discussed the impact of the WS[sub.2]/Ti[sub.3]C[sub.2]T[sub.x] interface on the Gauge factor and conductivity of the composite. Theoretical modeling demonstrates significant changes in the electronic structure of the WS[sub.2]/Ti[sub.3]C[sub.2]T[sub.x] interface, and especially the WS[sub.2] surface, induced by substrate strain. Possible applications of the peculiar properties of PAM-Ag-g/WS[sub.2]/Ti[sub.3]C[sub.2]T[sub.x] composite were proposed.
Publisher
MDPI AG
Subject
