Epoxy floor paint is alkali-resistant and has good adhesion. Epoxy resin contains aromatic ether bonds, made into a variety of coatings, can be dry at room temperature, epoxy floor coatings containing aromatic rings and hard, with ether bonds to facilitate the rotation of the molecular chain, with a certain degree of toughness, unlike phenolic resin Very brittle (due to shorter cross-linking distance than epoxy). Epoxy resin has a long cross-linking distance and facilitates internal rotation. The greater the molecular weight of the epoxy resin, the greater the cross-linking distance.
Epoxy resin has a certain wetting force on the wet surface, amino resin, polyisocyanate, etc., so it can be used in large quantities as anti-corrosion primer, anti-corrosion of the aircraft's overall tank wall lining, etc., but there are also insufficient, its light Poor aging.
Because of the epoxy coating, it is cured in a three-dimensional network structure and is resistant to oil impregnation.
High solids powder coatings and waterborne coatings, cross-linked macromolecules from the network structure, from its own thermoplastic into thermosetting, can squeeze the surface of the water coating and can be used for underwater structure repair and underwater structure Anti-corrosion construction.
The epoxy resin itself is not high in molecular weight and can be formulated with various curing agents to produce a solvent-free solution.
Good toughness, while the epoxy resin itself is thermoplastic and needs to react with the curing agent or fatty acid: The epoxy resin contains two reactive groups, epoxy and hydroxyl groups, with polyamines, polyamide resins, and phenolic resins, especially when used. Polyamide resin as curing agent: Epoxy resin has excellent electrical insulation properties, can be used for pouring seals, dipping paint. Epoxy resins have many advantages and thus exhibit a variety of excellent properties.
Excellent adhesion: Epoxy floor coating has many hydroxyl and ether bonds, so it can be adsorbed with the bottom material. Moreover, the volume shrinkage of the epoxy resin is low (only about 2%), it meets the environmental protection requirements, and thick film coating can be obtained. The cocoa can be baked at high temperature to meet different construction requirements. After the film is exposed to sunlight (ultraviolet rays) Easy to degrade broken chain, so outdoor weather resistance is poor. Therefore, the common bisphenol A epoxy resin is not resistant to outdoor sun exposure.
Excellent chemical resistance: Epoxy resin has only hydrocarbon groups and ether bonds, and polar substrates such as wood have excellent adhesion, so paint film to metal (steel, aluminum), concrete, ceramic, glass: thermosetting phenolic Compared with the resin coating, the film is easy to lose light and discolor, there is no ester bond, so the alkali resistance is particularly prominent, the general oily or alkyd anti-rust primer. During the corrosion, the cathode part is alkaline, which can be used as underwater construction coating material, and can also be used in large quantities in oil tanks. Since the main film-forming base material is epoxy resin, the oil tanker epoxy floor paint is used.
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