Method for prolonging service life of carbon fiber composite board

Abstract

The invention discloses a method for prolonging the service life of a carbon fiber composite board. The carbon fiber composite board comprises a carbon fiber board and a metal plate arranged on the carbon fiber board, wherein the metal plate is connected with the carbon fiber board through a metal connector; an open hole corresponding to the metal connector is formed in the carbon fiber board; theopen hole and the surface of the metal connector are respectively coated with a layer of resin. Because the surface of the metal connector and the open hole are coated with the resin, galvanic corrosion between the carbon fiber board and the metal connector can be effectively reduced or even eliminated, and further the service life of the composite board is prolonged. In addition, the metal plateis connected with the carbon fiber board by adhesive, riveting or bolts, so that the connection force between the metal plate and the carbon fiber board is further improved and the service life of the composite board is prolonged.

Description

technical field [0001] The invention relates to the technical field of material preparation, in particular to a method for prolonging the service life of a carbon fiber composite plate. Background technique [0002] Carbon fiber sheet is made of carbon fiber arranged in the same direction with resin impregnation and hardening to form a carbon fiber sheet, which can effectively solve the problems of multi-layer carbon fiber cloth construction difficulties and large engineering volume. The reinforcement effect is good and the construction is convenient. Due to the carbon fiber sheet has tensile strength High, corrosion resistance, earthquake resistance, impact resistance and other good performance, so in concrete beam bending, shear reinforcement, concrete floor, bridge slab reinforcement, concrete, brick masonry walls, scissors wall reinforcement, bridge piers, piles, etc. Column reinforcement and reinforcement, chimneys, tunnels, pools, concrete pipes and other reinforcement...

AI Technical Summary

Problems solved by technology

[0003] However, there are still some defects in the existing carbon fiber sheet, such as weak shear strength, so it is connected with the metal sheet to form a composite sheet, and the connection between the metal sheet and the carbon fiber sheet is mostly connected by viscose, which is inevitable. In order to increase the bonding force between the two, riveting or bolting will be used, so it is inevitable to use metal connectors, and there is a potential difference between the metal connector and the carbon fiber sheet, so it is easy to form a galvanic couple. Corrosion, affecting its service life