▎ 摘　　要

NOVELTY - Preparing graphene oxide-carbon fiber mixed reinforced shape memory composite material comprises e.g. (a) performing three-dimensional printing of the substrate sheet, (b) cutting the carbon fiber cloth into the carbon fiber cloth sheet, (c) preparing graphene oxide dispersion, and (d) forming the laminate by layering a carbon fiber cloth sheet coated with a graphene oxide dispersion liquid and a matrix sheet coated with a graphene oxide dispersion liquid at intervals, the bottom layer and the top layer of the laminate are both carbon fiber cloth, placing the obtained laminate in a preheated plate vulcanizer, and applying a pressing force through a hydraulic press, and transferring the extruded laminate to a vacuum drying box for final vacuum impregnation treatment, where the vacuum impregnation treatment includes two processes of vacuum impregnation and vacuum curing. USE - The method is useful for preparing graphene oxide-carbon fiber mixed reinforced shape memory composite material. ADVANTAGE - The composite material has shape fixation rate of 97.12%, shape recovery rate of 97.15%, excellent the shape memory performance, which solves the problem of the unity of shape and size of the shape memory polymer produced by the traditional process. the process is simple, and shortens design and manufacturing cycle. DETAILED DESCRIPTION - Preparing graphene oxide-carbon fiber mixed reinforced shape memory composite material comprises (a1) establishing the shape of the three-dimensional printing substrate in Cura software, the shape is a rectangular parallelepiped of 60 mmx 30 mmx 0.5 mm, (a2) setting Cura software printing parameters, printing the substrate sheet by layered filling printing, where the substrate sheet is obtained by layered printing, and the thickness of each layer is 0.125 mm, setting the moving speed of the print nozzle to 50 mm/second, the printing temperature to 210 degrees C, the hot bed temperature to 50 degrees C, and the nozzle aperture to 0.4 mm, (a3) opening the STL format file in the Cura software, determining the placement method of the established base body shape and saving to the card, the placement method is that the rectangular cross-section ABCD of the substrate sheet coincides with the X1O1Y1 plane in the three-dimensional coordinates of the Cura software and the distance between O1X1 divide by AB, O1Y1 divide by AD, the distance between AB and X1 axis is 40 mm, and the distance between AD and Y1 axis is 40 mm, (a4) inserting the printing filament with a diameter of 1.75 mm into the extrusion hole of the extruder, (a5) printing the substrate sheet through a three-dimensional printer, the specific process is: (i) setting the printing path, taking a right angle of the base sheet as the origin O2, establishing the coordinate system of the base sheet, and setting the long side of the base sheet as the X2 axis and the short side of the base sheet as the Y2 axis, setting (0.2, 29.8) in the coordinate system as the starting point E of the center of the 3D printer nozzle, (ii) printing the bottom layer of the substrate sheet, printing of the bottom frame of the base sheet three times to obtain the bottom frame of the base sheet, the bottom frame of the obtained base sheet is filled with printing filaments, so far, the printing of the bottom layer of the base sheet is completed, (iii) printing each layer of the base sheet: repeating the process of printing the bottom layer of the base sheet in the second step, and complete the printing of each layer layer by layer; the layer thickness of each layer is 0.125mm until the designed thickness of the base sheet is reached, the printing of the base sheet is completed, (iv) printing all the base sheets, repeating the process of the second step and the third step twice to complete the printing of the remaining substrate sheets, (b) cutting the carbon fiber cloth into the carbon fiber cloth sheet, (c) preparing graphene oxide dispersion, (d) forming the laminate by layering a carbon fiber cloth sheet coated with a graphene oxide dispersion liquid and a matrix sheet coated with a graphene oxide dispersion liquid at intervals, the bottom layer and the top layer of the laminate are both carbon fiber cloth, placing the obtained laminate in a preheated plate vulcanizer, and applying a pressing force through a hydraulic press, and transferring the extruded laminate to a vacuum drying box for final vacuum impregnation treatment, where the vacuum impregnation treatment includes two processes of vacuum impregnation and vacuum curing.