LiCl on Rheological Characteristics of PAM-LiCl Conductive Hydrogel

Abstract

Abstract Rheology is a science that studies the flow and deformation of materials and the relationships between various factors that cause them to flow and deform. Finding the relationship between stress and strain, or the rate of both, during fluid deformation is the core issue of rheology research. In this study, a composite hydrogel with good conductivity based on polyacrylamide (PAM) and lithium chloride (LiCl) was introduced. This PAM-LiCl conductive hydrogel is also highly stretchable and can be used for flexible actuation technology of robots. Based on the oscillating rheological testing method, the dynamic response of this material under different thermal-mechanical loads was measured, and intrinsic parameters such as shear modulus and yield stress were obtained. Based on the test results, the material ratio and mechanical properties suitable for the preparation of PAM-LiCl conductive hydrogel were obtained, which laid the foundation for the preparation of conductive hydrogel-related materials.