Waterproof coating with corrosion resistance and preparation method thereof

Abstract

The invention discloses waterproof coating with corrosion resistance. The waterproof coating comprises the following raw materials in parts by weight: 32-38 parts of modified styrene-acrylic emulsion,22-28 parts of fly ash, 14-18 parts of graphene oxide powder, 12-18 parts of mixed rare earth ore, 6-10 parts of mixed metal oxides, 4-8 parts of mica powder, and 1-3 parts of a dispersing agent; themodified styrene-acrylic emulsion comprises the following raw materials in parts by weight: 28-34 parts of tyrene-acrylic emulsion, 14-28 parts of polystyrene microspheres, 4-8 parts of tert-butyl peroxybenzoate, 1-3 parts of a silane coupling agent KH-560, and 12-18 parts of ethanol. The invention aims at providing waterproof paint with corrosion resistance, the paint is applied to metal surface, the paint has excellent corrosion resistance and good adhesion on a metal surface, and the product has high use value and good application prospects.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a waterproof coating with a corrosion-resistant function and a preparation method thereof. Background technique [0002] The waterproof film formed after the waterproof coating is cured has certain extensibility, elastic-plasticity, crack resistance, impermeability and weather resistance, and can play the role of waterproof, anti-seepage and protection. There are two types of waterproof materials on the market: The first is polyurethane waterproof coatings. This type of material is generally made of polyurethane and coal tar as raw materials. The tar gas it volatilizes is highly toxic and not easy to remove. Therefore, it was banned in China in 2000 and is still in use today. The polyurethane waterproof coating sold uses asphalt instead of coal tar as a raw material, but when using this kind of coating, it is generally diluted with organic solvents such as toluene and...

AI Technical Summary

Problems solved by technology

[0003] The existing metal is easy to corrode, and the coating applied on the metal surface has poor anti-corrosion effect. The Chinese patent document (notification number: CN105419508B) discloses a one-component corrosion-resistant, non-layered acrylic waterproof coating, which consists of polymer emulsion , cellulose ether, defoamer, dispersant, pH regulator, antifungal agent, barium sulfate, thickener, wherein the parts by weight of each component are 350-500 parts of polymer emulsion, 3-6 parts of defoamer , 5-8 parts of dispersant, 0.5-1 part of PH regulator, 450-550 parts of barium sulfate, 1-3 parts of cellulose ether, 1-2 parts of antifungal agent, 3-4 parts of organic bentonite, 120-160 parts of water parts, the coating uses polymer emulsion in combination with other additives, and the anti-corrosion effect achieved can still be further improved