1results about How to "Fill the void" patented technology

The application provides a carbon-carbon composite material defect repairing liquid, a preparation method thereof and a defect repairing method of a carbon-carbon composite material component, and the carbon-carbon composite material defect repairing liquid comprises the following components in percentage by mass: 0.05%-0.2% of a silane coupling agent, 5%-14% of an organic solvent, 10%-25% of graphite powder, 60%-80% of phenolic resin and 0.5%-2% of polyvinylpyrrolidone, wherein the mesh number of the graphite powder is 200-1000, the solid content of the phenolic resin is 80wt%-85wt%, and the residual carbon content of the phenolic resin is 60wt%-75wt%. The carbon-carbon composite material defect repairing liquid has a good defect repairing effect on the carbon-carbon composite material component, and has the advantages of simple operation, short cycle and low cost.