▎ 摘　　要

NOVELTY - An epoxy resin-based graphene oxide nano leather tanning agent contains 40-60 parts mass graphene oxide dispersion liquid, 25-40 parts mass epichlorohydrin, 15-25 parts mass trimethylolpropane, 0.3-0.8 part mass oxidizing agent, 0.1-0.4 part mass strong alkali solution, and 0.04-0.08 part mass beta -cyclodextrin. USE - Epoxy resin-based graphene oxide nano leather tanning agent (claimed). ADVANTAGE - The epoxy resin-based graphene oxide nano leather tanning agent has excellent tensile strength, tear strength and breaking elongation rate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of epoxy resin-based graphene oxide nano leather tanning agent, which involves adding graphene oxide dispersion liquid to a reactor and then heating at 70 degrees C, adding 0.3-0.8 part mass ammonium sulfate to the reactor and then uniformly mixing, stirring the mixture and then reacting for 0.5 hours, increasing the temperature at 40 degrees C, adding strong alkali solution to the mixture and then adjusting pH value to 11-13, adding beta -cyclodextrin to the mixture and then stirring for 15 minutes, adding epichlorohydrin to the mixture and then stirring for 0.5-1 hours, reacting the mixture for 2-3 hours, adding 1 mol/l formic acid solution to the mixture, and adjusting pH value to 5.5-6.