Elastic anti-corrosion coating

Abstract

The invention relates to an elastic anti-corrosion coating, which is a room-temperature silicon sulfide-based functional compound with high property. The formula of the coating comprises(in part by weight): 30 to 70 parts of polyorganosiloxane, 1 to 80 parts of pigments and fillers, 30 to 10 parts of crosslinking agent, 1 to 10 parts of auxiliary agent and 10 to 80 parts of thinning agent. The elastic anti-corrosion coating has high weathering resistance, water resistance, acid resistance, solvent resistance and oil resistance and alkali resistance; the paint film can be desirably adhered onto glass, ceramics, steel structural members, concrete, various resin primers and the like, and the paint film is good in elasticity and hydrophobicity and high in tensile strength and breaking elongation, can be widely used for the corrosion prevention of bridges, tanks and various steel structural members and the corrosion and leakage protection of ground, drainage channels and the like.

Description

technical field [0001] The invention belongs to the field of material chemical industry, and in particular relates to an elastic anticorrosion coating, in particular to an anticorrosion room temperature vulcanized silicone rubber composition. Background technique [0002] The surface of metal, concrete, wood and other materials is often corroded and damaged by the physical and chemical effects of the surrounding environmental medium. The whole world is suffering huge losses caused by various kinds of corrosion. The annual economic loss caused by corrosion in my country is about 800 billion yuan, accounting for about 3% of GDP. In the fields of petroleum, chemical industry and building materials, various hidden safety hazards and accidents caused by corrosion are even more shocking. [0003] In order to deal with corrosion, people have taken various measures, among which the most economical and effective one is to apply anti-corrosion coatings. The basic principle of anti-c...

AI Technical Summary

Problems solved by technology

The current anti-corrosion coatings are roughly divided into anti-acid, anti-alkali, anti-salt, etc., and it is easy to prevent acid and difficult to prevent alkali.

Commonly used anti-corrosion coatings include: epoxy resin coatings, which have the advantages of good adhesion and strong corrosion resistance, but poor weather resistance, and are often used as primers; alkyd resin coatings have better weather resistance, but are resistant to water and Poor saponification; coal tar pitch coatings have good water resistance, but poor solvent resistance; polyurethane coatings, chlorosulfonated polyethylene coatings, and fluorocarbon coatings have good water resistance and weather resistance, and have certain Chemical corrosion resistance, but it does not have good corrosion resistance to alkali and more than 40% concentrated acid, and the paint film is hard, and the adhesion to cement is not good, so it cannot be directly used as a floor coating

[0004] CN1056397 discloses a kind of anticorrosion and waterproof coating with epoxy resin and waste polystyrene as main materials, but its solvent resistance is relatively poor; The polystyrene styrene butadiene rubber anti-corrosion coating obtained by modification, because it contains epoxy resin, although the adhesion to the substrate is increased, the light resistance will be negatively affected

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