Reactive type flame-retardant vinyl ester resin having synergistic effect and preparation method thereof

Abstract

The invention relates to reactive type flame-retardant vinyl ester resin having a synergistic effect and a preparation method thereof, and belongs to the technical field of vinyl ester resin. The reactive type flame-retardant vinyl ester resin is prepared by carrying out a series of reactions on substances such as epoxy resin, a reactive type phosphonium-containing flame retardant agent, unsaturated monacid, a catalyst, a polymerization inhibitor and a crosslinkable monomer. According to the reactive type flame-retardant vinyl ester resin and the preparation method of the reactive type flame-retardant vinyl ester resin disclosed by the invention, reactive type phosphorus as well as bromine and nitrogen elements which can carry out synergism with the reactive type phosphorus are introducedinto the vinyl ester resin, so that the flame-retardance efficiency is greatly improved; under a condition of the same addition amount, compared with conventional added type flame-retardant and single-element reactive type vinyl ester resin, the reactive type flame-retardant vinyl ester resin has the characteristics of high flame retardance efficiency, stable performance and low addition amount, and can be applied to the field requiring higher flame retardance performance; in addition, the resin is moderate in viscosity and good in construction performance, and can be widely applied to a variety of operation processes such as hand lay-up, ejection and roller coating. The resin also has the performance of high corrosion resistance, high heat resistance and high toughness of the vinyl esterresin and high flame retardant performance of reactive type flame-retardant vinyl ester resin.

Description

technical field [0001] The invention relates to the technical field of vinyl ester resins, in particular to a synergistic reactive flame-retardant vinyl ester resin and a preparation method thereof. Background technique [0002] Vinyl ester resins have been widely used in various industries after development in recent years. It is usually prepared by the ring-opening esterification reaction of unsaturated organic monocarboxylic acid and epoxy, and the composite material made of vinyl ester resin usually has excellent mechanical properties, high temperature resistance, and corrosion resistance. Under the increasingly fierce market competition, manufacturers of composite materials have also put forward higher requirements for the safety performance of materials, and composite materials made of vinyl ester resins are flammable, and the oxygen index is generally around 20. Combustible in atmosphere. Therefore, for products with high requirements for flame retardancy, the flame...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide a synergistic reaction that solves a series of problems such as low flame retardant efficiency, high addition amount, poor operability, and unstable performance of the existing flame retardant vinyl ester resin. Type flame retardant vinyl ester resin and preparation method thereof

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