Stimulus-responsive composite hydrogel as well as preparation method and application thereof

The invention provides stimuli-responsive composite hydrogel as well as a preparation method and application thereof, and belongs to the technical field of hydrogel materials. The invention provides a stimuli-responsive composite hydrogel, the chemical composition of the stimuli-responsive composite hydrogel comprises P (NVCL-HEA), and the P (NVCL-HEA) is obtained by polymerizing N-vinyl caprolactam and hydroxyethyl acrylate. In the invention, when the temperature of the PNVCL is higher than the low critical phase transition temperature (LCST), the hydrogel can generate rapid and reversible volume expansion/shrinkage change due to the transition from a hydrophilic (swelling) state to a hydrophobic (deswelling) state, and the poly (hydroxyethyl acrylate) (copolymer PHEA) enhances the mechanical property and the crosslinking degree of the hydrogel, so that the hydrogel can be used for preparing the hydrogel. Further, the response speed and the anti-swelling performance are improved. 本发明提供了一种刺激响应性复合水凝胶及其制备方法和应用，