Preparation method of phosphorus-nitrogen-containing flame-retardant corrosion inhibitor, and epoxy resin coating and preparation method thereof

Abstract

The application discloses a preparation method of a phosphorus-nitrogen-containing flame-retardant corrosion-resistant additive, the additive, an epoxy resin coating and a preparation method of the epoxy resin coating, and relates to the technical field of functional coatings. The preparation method of the phosphorus-nitrogen-containing flame-retardant corrosion-resistant additive comprises the following steps: condensation reaction of raw materials including a phosphate component and an amino triazole component to obtain the additive. Compared with pure epoxy resin or a traditional dispersion-type flame-retardant / corrosion-resistant system, the coating has the following advantages: V-0 level of UL-94 test can be achieved at a low additive amount; heat release and smoke release are significantly reduced; thermal stability is obviously improved; high transparency is reserved; and long-term corrosion resistance is greatly improved. The problems of mutual interference, mechanical property reduction and transparency reduction caused by addition of multiple materials in the prior art are solved.

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