▎ 摘　　要

NOVELTY - A graphene fragment polar solution comprises graphene molecule with positive or negative ion group. USE - Graphene fragment polar solution for manufacturing graphene fabric used for vaginal obturator (claimed). ADVANTAGE - The graphene fragment polar solution enables preparation of graphene fabric with high porosity, light weight and enhanced performance by simple process. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation method of graphene fragment polar solution, which involves dissolving graphene in solvent to obtain graphene solution, applying electricity to graphene solution to open the covalent bond of graphene molecules, adding ion solution to graphene solution, applying magnetic field to graphene solution for directional separation and aggregation of target ion group according to magnetic field characteristics, applying voltage to graphene solution, moving the target ion group in the direction of graphene molecules and forming covalent bond of target ionic group with graphene molecule; (2) graphene fabric comprises substrate and graphene layer. The graphene layer is formed by spraying the polarized solution of the two different polarities of graphene onto the substrate; (3) preparation method of graphene fabric, involves mixing the positive electrode graphene polar fragment solution and the negative electrode graphene polar fragment solution, combining the positive and negative ion groups in the solution, combining positive and negative ions to form material that is completely exfoliated from graphene and freely combining graphene fragments after removal of ionic groups to form graphene fabric with large area structure; and (4) vaginal obturator comprises an advancing mechanism with an outer tube and an inner tube set up in the outer tube, filler portion is made of graphene fabric and a traction portion is provided on the filler portion.