Graphene/Flexible Polylactic Acid Self-sensing Composite Structures 3D Printing and Performance

In order to further study piezoresistive properties of graphene composites, solve the problem of quantitative sensing through piezoresistive composites, and realize the deformation monitoring of self-sensing structure, oxide graphene/flexible poly lactic acid(rGO/flexPLA) composites are prepared by ball mill mixing process and single screw extrusion process, and material extrusion modeling 3D printing process is used as the structure forming process of rGO/flexPLA self-sensing composite material. Piezoresistive properties of the conductive polymer composites are studied. The influence of different load conditions on the piezoresistive properties of composite materials is explored, and it provided a reliable basis for realizing self-sensing structural deformation monitoring. Finally, a real-time monitoring system for morphing and reconstruction of self-sensing structures based on LabVIEW and real-time data acquisition module is built. By establishing the calculation model of the plane bending deformation sensi