▎ 摘　　要

NOVELTY - A wet specific surface area of graphene dispersion testing method involves pretreating the graphene dispersion, taking a graphene dispersion sample, pipetting the pre-formed graphene dispersion into the quartz sample tube and the cap is worn, using low field nuclear magnetic technology, placing the sample of the graphene dispersion in a permanent magnet and a pulsed magnetic field signal integration device, measuring the longitudinal relaxation time and the transverse relaxation time of the proton in the graphene dispersion by using a permanent magnet and a pulsed magnetic field signal integration device, increasing the longitudinal relaxation time represents the time required for the longitudinal magnetization vector to equilibrium state, representing the transverse relaxation time during which the transverse magnetization vector decays to the equilibrium state and calculating the wet specific surface area of the graphene dispersion by the expression as given in the specification. USE - Method for testing wet specific surface area of graphene dispersion. DETAILED DESCRIPTION - A wet specific surface area of graphene dispersion testing method involves pretreating the graphene dispersion, taking a graphene dispersion sample, pipetting the pre-formed graphene dispersion into the quartz sample tube and the cap is worn, and controlling the graphene dispersion sample at 22 plus minus 0.2 degrees C, using low field nuclear magnetic technology, placing the sample of the graphene dispersion in a permanent magnet and a pulsed magnetic field signal integration device, placing the permanent magnet and the pulsed magnetic field signal integration device in an environment of 22 plus minus 0.2 degrees C, measuring the longitudinal relaxation time T1 and the transverse relaxation time T2 of the proton in the graphene dispersion by using a permanent magnet and a pulsed magnetic field signal integration device, increasing the longitudinal relaxation time T1 represents the time required for the longitudinal magnetization vector Mz to 63% of the equilibrium state M0, representing the transverse relaxation time T2 and the time during which the transverse magnetization vector Mxy decays to the 37% equilibrium state M0 and calculating the wet specific surface area of the graphene dispersion represented by the expression as given in the specification.