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Hydrogels are reticular polymer compounds containing a large number of hydrophilic groups. Under the stimulation of external physical and chemical factors, such as temperature, pH, light, electricity, magnetism, sound, force and chemical solution, reversible changes in volume and shape can occur under artificial control. Compared with other types of hydrogels, electrosensitive hydrogels are mostly composed of polyelectrolyte polymers, which can deform under the action of DC electric field. Realizing the conversion of electrical energy to mechanical energy, it can be applied as an energy conversion device in fields such as robots, sensors, controllable drug release, and artificial muscles. In this paper, based on the chemical mechanical electrical continuum model of electrosensitive cantilever hydrogel proposed by Abdolhamid[1], the evolution process of bending behavior of electrosensitive hydrogel under external electric field stimulation is studied. The bending deformation of electrosensitive hydrogels with different electric stimulation, concentration of the mobile ions in solution and bound anions concentration of gel was studied. The results show that the size of the potential, the concentration of mobile ions in the solution and the concentration of bound anions in the gel will have a greater impact on the bending deformation of the electrosensitive hydrogel. The conclusions obtained have certain guiding significance for the design and manufacture of the electrosensitive hydrogel.
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