Preparation Of Two-dimensional Sheet-like Nanostructures And Investigation Of Friction And Wear Properties Of Carbon Fiber/Phenolic Resin Matrix Composites

Phenolic materials have universal characteristics in the fields of transportation,aerospace,and military applications.However,the disadvantages of phenolic resin are also relatively obvious:poor thermal conductivity,unstable heat dissipation,large brittleness,and average mechanical properties.Carbon fiber-reinforced carbon fiber/phenolic resin composite materials（CF/PF）appears wear resistance.Carbon fiber enhances the problem of limited thermal conductivity.However,carbon fiber/phenolic resin composite materials still have a poor combination of fiber and resin.It reduces the further development of carbon fiber/phenolic resin composite materials in the field of tribological.In order to improve the friction and wear performance of carbon fiber/phenolic resin composite materials further,and to solve the problem of of phenolic resin’s insufficient thermal conductivity,one possibly solution is to enhance the carbon fiber surface.In this work,the main tasks include:（1）The electrophoresis sedimentation method is used to uniformly spread the thin layer of graphene oxide（GO）and lay flat on the carbon fiber surface.Further place the carbon fiber cloth that modified the graphene mitigation of oxygen,and placed it in a high-pressure kettle.It reacts through the water and thermal method.In the two-dimensional layer of the two-dimensional chroma Molybdenum disulfide（MoS₂）with the vertically grown carbon fiber-modified carbon fiber.Heterogeneous structure of nanomaterials.（2）The effect of the friction and wear performance of glutinous Graphene oxide@MoS₂heterogeneous structure on carbon fiber/phenolic resin friction materials and the effects of thermal conductivity.During the structure,the friction coefficient of the carbon fiber/phenolic resin composite material was reduced to 0.286,and the wear rate was reduced to 1.31×10^-8mm³/n·m.The thermal conductivity is enhanced to 4.2 W/m·k.Compared with pure carbon fiber/phenolic resin composite materials,the surface modifiers are decorated with carbon fiber/phenolic resin composite material of the heterogeneous structure of MoS₂heterogeneous structure,which reduces 50.27%,and the wear rate is reduced by 57.52%.（3）As an emerging two-dimensional nano-shaped material,MXene（Ti₂C₃Tx）,because its structure contains a large number of active groups,can provide a more environment for MoS₂growth.By introducing MXene into the surface of the carbon fiber（CF@MX）,compared to oxide graphene,more reaction time and energy can be further generated on the carbon fiber surface.Continue to analyze the friction and wear performance of the carbon fiber/phenolic resin composite material and the changes and effects of the heating coefficient of carbon fiber/phenolic resin composite material.Further synthesized the carbon fiber composite material modified by MXene@MoS₂.After the friction and wear test,the results showed that the friction coefficient was slightly reduced compared to the pure CF,but for the surface The CF@MX@MoS₂composite material of MoS₂has a decrease of 35.39%compared with the CF/PF composite material.Although the friction coefficient of CF@MXene@MoS₂/PF composite material is not the best,compared with the same CF@MoS₂/PF composite material,the required water heat preparation time of this composite material has been shortened by 50%,which is in terms of energy saving.