Preparation method of modified acrylic resin and application thereof

By copolymerizing styrene with acrylate monomers and vinyl-containing silicone-epoxy resins, a ternary hybrid structure of acrylic, epoxy, and silicone is constructed, which solves the problems of easy decomposition and poor compatibility of traditional acrylic resins at high temperatures, and achieves excellent performance and stability of coatings at high temperatures.

CN121086150BActive Publication Date: 2026-04-17WEIFANG FULE NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202511639394.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-11
Publication Date
2026-04-17
Estimated Expiration
2045-11-11

AI Technical Summary

Technical Problem

Traditional acrylic resins are prone to cracking or oxidative decomposition at high temperatures, and have poor compatibility with silicone and epoxy resins, resulting in poor mechanical strength, corrosion resistance and adhesion of the coating, making it difficult to use in high-temperature conditions.

Method used

By copolymerizing styrene with acrylate monomers and vinyl-containing silicone-epoxy resins, a ternary hybrid structure of acrylic acid, epoxy, and silicone is constructed to form a modified acrylic resin, which solves the compatibility problem and improves high temperature resistance and adhesion.

Benefits of technology

The prepared modified acrylic resin coating exhibits excellent film-forming properties, adhesion, and corrosion resistance at high temperatures. The coating is dense and smooth, making it suitable for harsh industrial protective environments.

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Abstract

The present application relates to the technical field of resin coating, and particularly relates to a preparation method of modified acrylic resin and application thereof, which comprises the following steps: firstly, hydrolysis and condensation of multiple organosilicon alkoxyl monomers, then grafting with epoxy resin to obtain organosilicon-epoxy resin containing vinyl; subsequently, under the protection of nitrogen, a premixed solution of styrene, multiple acrylate monomers, initiator and solvent is added dropwise into a reaction kettle containing the resin, and after polymerization by staged heat preservation, parameters are adjusted to obtain the modified acrylic resin. The resin has a ternary hybrid structure of acrylic acid, epoxy and organosilicon through grafting, condensation and copolymerization, and has good film forming property, high adhesion, excellent high temperature resistance and flexibility. The coating prepared by using the resin can realize normal temperature self-drying, and the coating layer is dense and smooth, has strong adhesion, good corrosion resistance and impact resistance, and can withstand high temperature and cold cycle, and is suitable for protection of parts which need long-term high temperature and corrosion resistance.
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