氧化石墨烯掺量下碳纤维复合材料层合板的电学性能测试

Electrical performance test of carbon fiber composite laminateswith graphene oxide contentAbstractCarbon fiber composites(carbon fiber reinforced polymer,abbreviated CFRP)areapplied to many different fields,such as sporting instruments,aerospace,chemical machinery,spinning and medicine,but thanks to their excellent mechanical performance.Therefore,researchers often study the mechanical performance of CFRP,but in the field of research onthe performance of CFRP,human interest and foot are put in.This design takes the epoxy resin-based carbon fiber composite with graphene oxide(GO)as the research object,designs the test circuit of its electrical performance,speculates itsinternal structure,predicts the test results of its electrical performance,and analyzes itsconductive mechanism.The production of the sample material USES the extrusion method tobond each layer of carbon fiber cloth with epoxy resin as the substrate.The conductivity testcircuit is designed by using single-arm wheatstone bridge in series with reverse proportionaloperation circuit.The experimental design can obtain the conductivity of samples withdifferent GO doping concentrations at different temperatures.The results show that the concentration of GO has a certain effect on the anisotropicconductivity of the epoxy based carbon fiber layer plywood,and the average conductivity ofthe laminated plate specimen increases with the increase in the concentration of GO,and thetemperature is hardly affected in the temperature range which does not reach the meltingtemperature of the epoxy resin.Keywords:The carbon fiber;Epoxy resin;graphene oxide;Doping concentration;Electrical conductivity;Composite materials