A silane coupling agent containing selenium ions, a preparation method thereof, and application in marine antifouling

By developing silane coupling agents containing selenium-onium ions, traditional silicone resin coatings have solved the problems of insufficient mechanical strength, high curing temperature and poor antibacterial performance in marine environments, and achieved efficient marine antifouling effect and coating self-repair function.

CN119285666BActive Publication Date: 2025-03-25POLY PLASTIC MASTERBATCH SUZHOU
2 Cites 0 Cited by

Patent Information

Application Number
CN202411830392.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-03-25
Estimated Expiration
2044-12-12

AI Technical Summary

Technical Problem

Traditional silicone resin coatings have problems in marine environments such as insufficient mechanical strength and adhesion, high curing temperature, poor resistance to organic solvents, poor adhesion strength and mechanical properties of coating films, and inability to completely inhibit the growth of dirty biological damage in marine environments, resulting in poor application effect in the field of marine anti-fouling.

Method used

A silane coupling agent containing selenium ion was developed, and a silane coupling agent with excellent antibacterial properties was prepared by dispersing the selenium lipid into a solution containing aminosiloxane and a catalyst, filtration and secondary stirring of the sulfonate. As a coating antibacterial agent, the coupling agent can exhibit antibacterial effects at low addition amounts, and realize self-healing of the coating by catalyzing the dynamic exchange of silicones.

Benefits of technology

The silane coupling agent containing selenium-onium ions can show excellent antibacterial properties at low addition amounts, which can effectively prevent the adhesion of marine microorganisms such as bacteria and seaweed, greatly improve the antifouling effect on the ocean surface, and improve the durability and practicality of the coating through self-healing function.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a silane coupling agent containing selenium onium ions, a preparation method thereof and an application thereof in marine antifouling. The preparation method comprises dispersing selenium lactone into a solution containing aminosiloxane and a catalyst, adding a halogenated hydrocarbon for a stirring reaction, filtering to obtain a crude product, and then adding a sulfonic acid ester for a second stirring reaction. The silane coupling agent containing selenium onium ions is synthesized by a one-pot method, which is not only simple and environmentally friendly, but also highly efficient. The silane coupling agent containing selenium onium ions can exhibit excellent antibacterial properties as an antibacterial agent even at a low addition amount. In addition, the structure of the selenium onium ions adopts the form of a silane coupling agent, which can form a film independently, effectively overcoming the problem of poor adhesion of silicone, while retaining the low surface energy characteristics of silicone, thereby effectively preventing the attachment of marine microorganisms such as bacteria and seaweed, and greatly improving the antifouling effect of the marine surface.
Need to check novelty before this filing date? Find Prior Art