Epoxy organosilicon phosphoester compound modified acrylic resin

Abstract

The invention relates to epoxy silicon phosphate ester composite modified acrylic resin, which is characterized in that epoxy groups, phosphate ester groups and siloxane groups are introduced into acrylic resin; and the weight percentage of resin solid is between 40 and 60 percent, and the balance being a solvent. The acrylic resin comprises the following compositions with the percentage content: as calculated by the total weight of the resin solid, acrylate monomers account for 60 to 96 percent; epoxy resin accounts for 2 to 20 percent; silicon monomers account for 1 to 10 percent; phosphate monomers account for 1 to 10 percent; and an initiator is 0.5 to 1.5 percent of the amount of the acrylate monomers. After the resin is prepared into single-component anticorrosive coating, the anticorrosive property of a film coating is superior to that of the prior single-component anticorrosive coating, and the salt water resistance and the salt fog resistance of the film coating are even superior to those of the prior double-component anticorrosive coating. The epoxy silicon phosphate ester composite modified acrylic resin overcomes the defects of trivial use of the prior double-component coating and poor anticorrosive effect of the single-component coating.

Description

technical field [0001] The invention relates to an epoxy organosilicon phosphate composite modified acrylic resin, which is especially suitable for preparing single-component anticorrosion coatings. Background technique [0002] The current anti-corrosion coatings include two-component and one-component, and the commonly used film-forming base materials for two-component anti-corrosion coatings are epoxy-polyamide resin, acrylate-polyurethane resin, chlorosulfonated polyethylene resin, etc. These resins have been used to formulate anti-corrosion coatings for many years, and their anti-corrosion performance is much better than that of single-component anti-corrosion coatings. However, the two components need to be weighed and mixed in proportion before construction, and there is a certain degree of stability after preparation. Application period, once the application period is exceeded, the mechanical properties and anti-corrosion properties of the coating film will be greatl...

AI Technical Summary

Problems solved by technology

Because a small amount of cross-linked structure will obviously affect its solubility in solvents, and problems such as decreased adhesion will also occur, thereby affecting corrosion resistance.

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