▎ 摘　　要

NOVELTY - Preparing smart temperature-sensitive hydrogel involves dissolving 1-2 g sodium dodecanoate in 50 mL water to obtain sodium dodecanoate aqueous solution, adding 0.5 g sericite, stirring magnetically at 20 degrees C for 48 hours, centrifuging and washing with deionized water to obtain hydrophobized modified sericite, putting it in a single-neck bottle and drying it at 100 degrees c and keeping it in a vacuum state until the temperature drops to room temperature, adding the mixed solution of cyclohexanone and methyl methacrylate, stirring and dispersing, evacuating for 20-30 minutes and maintaining pressure for 30-40 minutes, transferring to a centrifuge tube, repeatedly washing and centrifuging with acetone, and drying in an oven to a constant weight to obtain product A, and pouring 100 mL of graphene oxide aqueous dispersion into a beaker. USE - Method for preparing smart temperature-sensitive hydrogel. ADVANTAGE - The method provides temperature-sensitive hydrogel, which has a good water absorption rate and a high expansion ratio, and has the best effect at 20 degrees C. DETAILED DESCRIPTION - Preparing smart temperature-sensitive hydrogel involves dissolving 1-2 g sodium dodecanoate in 50 mL water to obtain sodium dodecanoate aqueous solution, adding 0.5 g sericite, stirring magnetically at 20 degrees C for 48 hours, centrifuging and washing with deionized water to obtain hydrophobized modified sericite, putting it in a single-neck bottle and drying it at 100 degrees c and keeping it in a vacuum state until the temperature drops to room temperature, adding the mixed solution of cyclohexanone and methyl methacrylate, stirring and dispersing, evacuating for 20-30 minutes and maintaining pressure for 30-40 minutes, transferring to a centrifuge tube, repeatedly washing and centrifuging with acetone, and drying in an oven to a constant weight to obtain product A, pouring 100 mL of graphene oxide aqueous dispersion into a beaker, adding 20 mL of KH560 anhydrous ethanol solution, stirring at room temperature for 10 minutes, and ultrasonically treating for 2 hours, polymerizing in an oil bath at 50-80 degrees C, cooling and washing with deionized water to obtain modified graphene oxide, after 2 hours of ultrasonic treatment, transferring to a four-necked flask, heating and vent nitrogen, pre-polymerizing at 75 degrees C for 1.5-2 hours, and then performing polymerization at 50-10 0 degrees C in an oil bath for 1.5-2 hours, replacing cyclohexanone with ethanol and freeze-drying to obtain sericite-supported graphene oxide, adding deionized water to obtain sericite-loaded graphene oxide solution, adding 1.695 g N-isopropylacrylamide, 0.231 g N,N-methylene bisacrylamide, 0.027 g potassium persulfate and 0.04 mL in an ice bath N,N,N,N, tetramethylethylenediamine, sonicating in an ice bath until the solution becomes uniform, and reacting for 20-24 hours to obtain smart temperature-sensitive hydrogel.