Active microgel-reinforced hydrogel and preparation method thereof

The invention discloses active microgel-reinforced hydrogel and a preparation method thereof. The preparation method comprises the following steps: 1, dissolving gelatin, 2-acrylamide-2-methyl propanesulfonic acid, N,N-methylene bisacrylamide, potassium persulfate and acrylamide in water, conducting reacting at a high temperature, taking out a reaction product, and successively carrying out smashing, drying and grinding to obtain active microgel; 2, uniformly mixing the active microgel with a solution containing acrylamide, potassium peroxodisulfate and N,N-methylene bisacrylamide, conductingstanding for a period of time, and performing reacting at a certain temperature for several hours to obtain active microgel compounded hydrogel; and 3, soaking the active microgel compounded hydrogelin a glutaraldehyde solution to obtain the active microgel-reinforced hydrogel. According to the invention, the gelatin is introduced into the microgel to prepare the active microgel, and then the active microgel is used for p