High temperature and wear resistant graphene coating and preparation method thereof

Abstract

The invention relates to a high temperature and wear resistant graphene coating, and the graphene coating is characterized by comprising the following components by weight percent: 35.0-60.0wt% of silicate, 0.01-20.0wt% of graphene, 0.1-25.0wt% of additive, and the balance of water as a solvent. The invention further provides a method for preparing the coating. The high temperature and wear resistant graphene coating disclosed by the invention can be used for well protecting matrixes by coating on pipelines, chemical equipment, storage, kiln furnace, medicine, aerospace and sewage, the service life of the matrix is prolonged, and the performance of the coating is much greater than that of a common material.

Description

technical field

[0001] The invention relates to the technical field of coatings, in particular to a high-temperature and wear-resistant graphene coating and a preparation method thereof.

[0002] Background technique

[0003] Graphene can be regarded as a single sheet of graphite that has been exfoliated, with only one carbon atom layer thickness (0.35 nm). The carbon atoms are arranged in a hexagonal ring, and each carbon atom is closely connected to the other three carbon atoms through σ bonds. , C-C bonds make graphene have excellent mechanical properties. The strong force between carbon atoms makes it the material with the highest mechanical strength known so far, and it can be widely used as an additive in new high-strength composite materials.

[0004] Graphene has superhard properties (110GPa), which is harder than diamond. Graphene is also super strong, 100 times stronger than the best steel in the world. At the same time, it has good elasticity, and the stretchi...