▎ 摘　　要

NOVELTY - The device has a left spinning machine which is provided on the left side of the receiving roller. The left spinning machine is connected to the left injection pump. A right spinning machine is provided on the right side of the receiving roller. The right spinning machine is connected to the right injection pump. The receiving roller is connected to a negative voltage. The left spinning machine and the right spinning machine are respectively connected to a positive voltage. USE - Methyltriethoxysilane (MTES)/graphene composite fiber membrane preparation device. ADVANTAGE - The MTES/graphene composite fiber membrane is provided with adjustable hydrophobicity and conductivity and stable performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a MTES/graphene composite fiber membrane preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the main structure of the MTES/graphene composite fiber membrane preparation device. Receiving roller (1) Left spinning machine (2) Left injection pump (3) Right spinning machine (4) Right injection pump (5)