High corrosion resistant epoxy paint with high solid content and preparation method thereof

Abstract

The invention discloses a high corrosion resistant epoxy paint with high solid content. The epoxy paint consists of the following raw materials by weight: 72-75 parts of E-44 epoxy resin, 8-10 parts of saturated hydroxy polyester resin, 3-4 parts of triglycidyl isocyanurate, 4-5 parts of cobaltous naphthenate, 4-5 parts of glycol, 8-10 parts of sodium hexametaphosphate, 3-4 parts of butyl methacrylate, 14-16 parts of 1,6-hexanediol diacrylate, 10-12 parts of ethyl acetate, 1-2 parts of triethylamine, 1-2 parts of sulfonated lignin and 3-4 parts of a dispersant. The epoxy paint provided by the invention has the advantages of strong corrosion resistance, rust resistance, salt and alkali resistance, high hardness, strong adhesion and simple preparation process; and the epoxy paint can be used for a variety of substrates, including manually processed corrosion steel, jet and spray treated steel and a variety of intact aging coatings and provide excellent corrosion protection for industries in the atmosphere and water, coast, pulp mill and paper mill, bridges and offshore facilities.

Description

technical field [0001] The invention relates to a paint and a preparation method thereof, in particular to a high-corrosion and high-solid epoxy paint and a preparation method thereof. Background technique [0002] Epoxy paint is a class of industrial coatings that has developed extremely rapidly in recent years. Generally speaking, coatings containing more epoxy groups in their composition are collectively referred to as epoxy paints. The main variety of epoxy paint is two-component paint, which is composed of epoxy resin and curing agent. There are also some one-component self-drying varieties, but there is a certain gap in performance compared with two-component coatings. The main advantage of epoxy paint is that it has strong adhesion to inorganic materials such as cement and metal; the paint itself is very corrosion-resistant; it has excellent mechanical properties, wear resistance and impact resistance; it can be made into solvent-free or high-solid paint; it is resis...

AI Technical Summary

Problems solved by technology

The disadvantage is that the weather resistance is not good, and chalking may occur after long exposure to sunlight, so it can only be used for primers or interior paints; the decoration is poor, and the gloss is not easy to maintain; the requirements for the construction environment are high, and the coating film at low temperature The curing is slow and the effect is not good; many varieties need high temperature curing, and the investment in coating equipment is large