Acrylic resin with epoxy cycle on side chain and preparation and use thereof

Abstract

The invention discloses an acrylic resin with an epoxy cycle on a side chain, a preparation method thereof and use thereof in the preparation of marine antifouling coating. The preparation method comprises: allowing an acrylamide derivative having phenolic hydroxyl and epoxy chloropropane to undergo a Williamson reaction in the presence of an alkaline material and a phase transfer catalyst to obtain an acrylamide derivative having epoxy; and allowing the acrylamide derivative having epoxy and acrylate and / or methacrylate to undergo copolymerization to obtain the acrylic resin with the epoxy cycle on the side chain. The acrylic resin with an epoxy cycle on a side chain is used for preparing marine antifouling coating. The marine antifouling coating consists of 20 to 60 weight percent of the solution of the acrylic resin with the epoxy cycle on the side chain, 10 to 20 weight percent of plasticizer, 1 to 30 weight percent of filler and 5 to 40 weight percent of antifouling agent. The invention has the advantages that: the acrylic resin with the epoxy cycle on the side chain can be prepared easily; dimethyl formamide (DMF) is not used; and the acrylic resin can be used as the film former for the marine antifouling coating and has high antifouling performance and high ecological friendliness.

Description

technical field [0001] The invention relates to an acrylic resin, in particular to an acrylic resin with epoxy groups suspended from side chains, its preparation method and its application in the preparation of marine antifouling paint. Background technique [0002] Acrylic resins have a wide range of applications, and antifouling coatings are one of them. Chinese patent ZL03111823.2 has reported a kind of acrylic resin, and it is made of N-(4-hydroxyl-3-methoxybenzyl) acrylamide or N-(3-hydroxyl-4-methoxybenzyl) One or more of acrylamide or N-(4-hydroxy-3-methoxybenzyl)methacrylamide or N-(3-hydroxy-4-methoxybenzyl)methacrylamide and It is obtained by copolymerization of acrylate or methacrylate, and can be used to prepare marine antifouling coatings. The disadvantage of this acrylic resin is that the functional monomer of acrylamide derivatives used contains phenolic hydroxyl groups and has polymerization inhibition, which makes the resin difficult to prepare; the phenol...

AI Technical Summary

Problems solved by technology

The disadvantage of this acrylic resin is that the functional monomer of acrylamide derivatives used contains phenolic hydroxyl groups and has polymerization inhibition, which makes the resin difficult to prepare; the phenolic hydroxyl groups make the molecules of acrylamide derivatives highly polar and can be dissolved in commonly used organic solvents Poor performance, the added co-solvent DMF will make the coating difficult to dry

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