A coating that can be applied on wet or open water bases

Abstract

The invention provides a coating which can be applied on a wet or clear water base surface, and belongs to the technical field of building materials. The coating of the present invention is composed of two components, A and B. The first component includes epoxy resin, aldehyde compound, glycidyl ether compound, surfactant, hydration reaction type filler and functional filler, and the second component includes amine. Type curing agents, curing accelerators, curing agents and ketone compounds that can react normally in an aqueous environment. The coating of the invention has the function of drainage and replacement when it is painted on the wet or clear water base surface, can firmly adhere to or even penetrate into the concrete, ensure smooth film formation, and form a coating with excellent performance, which is not only environmentally friendly, but also convenient for construction and can save energy. duration and construction costs.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a coating which can be applied on a wet or open water base surface. Background technique [0002] The commonly used anti-corrosion and waterproof coatings for concrete structures are mainly epoxy resin coatings. Epoxy resin coatings mainly include solvent-based epoxy resin coatings and water-based epoxy resin coatings. [0003] Solvent-based epoxy resin coatings are usually composed of epoxy resins, diluents, additives, fillers and curing agents (or curing agents and accelerators), wherein epoxy resins, part of diluents, additives and fillers are all hydrophobic material, and the small molecular amines in the curing agent can be dissolved in water, which makes it difficult for solvent-based epoxy resin coatings to spread, form films, and cure normally on wet or watery substrates. It can form a film, and its coating performance is also extremely poor, and the coating fi...

AI Technical Summary

Problems solved by technology

Water-based epoxy resin also has the disadvantages of large emulsion particle size, poor storage stability, and poor mechanical strength. In addition, due to the addition of a large amount of emulsifier, the water resistance of the product is seriously affected.

[0005] Therefore, during the actual construction of the project, when encountering harsh construction conditions such as wet or open water base, you will face a dilemma: either wait for the base to dry naturally or use equipment to dry the base, which will seriously delay the progress of the project. The cost of time and capital is high; or the construction is forced, which will lead to poor quality of the project, fail to meet the design requirements, cause losses or even serious safety hazards

Images