Oil-in-water type nano-emulsion loaded with corrosion inhibitor as well as preparation method and application of oil-in-water type nano-emulsion

The invention relates to the field of corrosion inhibitors, and discloses an oil-in-water type corrosion inhibitor-loaded nano-emulsion as well as a preparation method and application thereof. The nano-emulsion loaded with the corrosion inhibitor comprises a corrosion inhibitor main agent, a surfactant, solvent oil and water, wherein the corrosion inhibitor main agent is an oil soluble corrosion inhibitor. By loading the corrosion inhibitor nano-emulsion and wrapping the corrosion inhibitor main agent with the nano-emulsion, the water solubility of the corrosion inhibitor is improved, the diffusion performance and effective content of the corrosion inhibitor in a water-phase medium are greatly improved, the corrosion inhibition effect is improved, and the corrosion inhibitor has remarkable advantages under the oil-water coexistence condition. Meanwhile, the flash point of the corrosion inhibitor-loaded nano-emulsion provided by the invention is greatly improved compared with the flash point of the original co