Graphene based epoxy waterproof and anti-corrosive potting slurry and preparation method thereof

Abstract

The invention provides graphene based flexible epoxy waterproof and anti-corrosive potting slurry. The slurry contains a component A and a component B. By means of addition of a graphene anti-corrosive material, graphene is dispersed in epoxy resin uniformly through a dispersion liquid or in a manner of being mixed with glass beads, the concrete potting slurry with excellent waterproof and anti-corrosive effects and flexibility is obtained, cracking in a using process is reduced, and functional service life of concrete is prolonged.

Description

technical field [0001] The invention belongs to the field of concrete protective materials, and in particular relates to a waterproof and anti-corrosion potting slurry. Background technique [0002] Concrete is made by mixing cement, sand, gravel, water, and admixture materials and admixtures in a certain proportion. After solidification, it is as hard as a stone, and has good compressive capacity, but poor tensile capacity, and is easy to break due to tension. In order to solve this contradiction and give full play to the compressive capacity of concrete, a certain number of steel bars are often added in the tensile area of ​​concrete or corresponding parts, so that the two materials are bonded into a whole and jointly bear external forces. This concrete with steel bars is called reinforced concrete. [0003] The concrete structure is loose and porous due to sunlight, wind, sand and rain, and natural aging. The corrosive medium will gradually penetrate into the concrete a...

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Problems solved by technology

[0005] In practice, the environment of some cracks is not only humid, but also may have a corrosive effect on the coagulation

However, the existing conventional epoxy resin curing glue is brittle, and the bonding performance gradually decreases during long-term use, resulting in water leakage again, and the conventional epoxy resin curing glue usually does not have anti-corrosion function

[0006] On the other hand, due to the dispersion problem of graphene, the application in anti-corrosion materials is hindered, limited to the difficulty of effectively dispersing, graphene is difficult to form a dense continuous protective film, and its anti-corrosion performance is affected

However, due to the strong interaction of the exfoliated graphene sheets, the graphene sheets are easy to agglomerate, resulting in limited solubility in organic solvents or water, which greatly limits its application.

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