Thermosensitive single-layer hydrogel with controllable transparency, preparation method and assembled double-layer hydrogel

The invention relates to the technical field of intelligent hydrogel, and discloses a preparation method of temperature-sensitive single-layer hydrogel with controllable transparency, which comprises the following steps: (1) dissolving acrylamide, acrylic acid and a cyclodextrin monomer in water, adding acryloyloxyethyl trimethyl ammonium chloride, fatty alcohol-polyoxyethylene ether-9 and a cross-linking agent, and fully mixing; adding an initiator and a catalyst to obtain a hydrogel prepolymerization solution; and (2) injecting the hydrogel prepolymerization liquid in the step (1) into a mold for reaction to obtain the single-layer hydrogel. The single-layer hydrogel has excellent mechanical properties and rapid transparency change ability. The single-layer hydrogel is used for double-layer assembly through host-guest interaction between cyclodextrin and isopropyl, and the double-layer hydrogel which is high in double-layer bonding strength and capable of achieving rapid and reversible anisotropic deformati