Synthetic friction material suitable for high braking energy and preparation method of synthetic friction material

The invention provides a synthetic friction material suitable for high braking energy. The synthetic friction material comprises the following components in percentages by mass: 8-11% of carboxylatednitrile rubber, 8-10% of nano montmorillonite modified phenolic resin, 5-8% of an iron sulfide mineral, 8-10% of diatomite, 3-4% of steel fibers, 9-11% of inorganic mineral fibers, 3-4% of foam iron powder, 3-4% of potassium feldspar powder, 40-51% of nano precipitated barium silicate, 0.05-0.15% of granulating sulphur, 0.06-0.20% of stearic acid, 0.06-0.20% of an accelerant CZ, and 0.05-0.15% ofzinc oxide. According to the synthetic friction material provided by the invention, the carboxylated nitrile rubber and the nano montmorillonite modified phenolic resin are used as binders, a synergistic effect of the carboxylated nitrile rubber and the nano montmorillonite modified phenolic resin is fully played, and the heat insulation efficiency and thermal stability of the synthetic friction material are significantly