Testing and Analysis of Frictional Performance of Carbon Fiber/Metal Composite Materials

Abstract

In order to enhance the friction and wear performance of carbon fiber/steel composite structures, experiments were conducted to adjust the ratio of thermosetting epoxy resin and C12-C14 glycol ether. A modified liquid was developed that could fully fill the gaps in the carbon fiber and enhance the adhesion characteristics between the fiber surface and 18CrMnTiH round steel material. The effects of self-made modified epoxy adhesive and single-component epoxy adhesive on the mechanical properties of composite materials were compared using ISO814-86 determination of the bond strength of sulfur-cured rubber to metal—two-plate method and international standard ISO1747-1976 determination of the shear strength of sulfur-cured rubber bonded to rigid metal plates—four-plate shear method. The friction and wear performance test analyzed the friction coefficient of composite materials under different pretreatment times. The results showed that the pretreatment treatment effectively reduced the friction coefficient of carbon fiber and effectively extended the service life of the material. This study has certain reference significance for extending the friction and wear resistance performance of carbon fiber-reinforced relative motion metal parts.