Preparation Method of Low-Cost Corrosion Inhibitor-Loaded Structure

Abstract

The invention relates to anti-corrosion additive technology and aims at providing a preparation method of a low-cost corrosion inhibitor loading structure. The equipment includes: under stirring, add cerium nitrate to the heated acidic water and mix well, then add absolute ethanol and stir; add diatomaceous earth and stir; the resulting mixture is centrifuged, washed with ethanol and dried at 80°C, taken out and ground through 200 mesh sieve to obtain a low-cost corrosion inhibitor-loaded structure. The invention adopts the natural mineral diatomite as the porous loading structure, avoids the direct contact between the corrosion inhibitor and the paint, and can increase the content of the corrosion inhibitor to about 3%. The loading matrix in the low-cost corrosion inhibitor loading structure prepared by the present invention is diatomite, which is a natural mineral with a good pore structure distribution, and is very suitable for direct use as a loading structure, avoiding the preparation of complex porous loading structures process. The low price of diatomite greatly reduces the raw material cost of the load structure, and is suitable for large-scale use and promotion in industry.

Description

technical field

[0001] The invention relates to the preparation technology of anticorrosion additives, in particular to a preparation method for a low-cost corrosion inhibitor loading structure. Background technique

[0002] Anti-corrosion coatings for ships, especially anti-corrosion coatings for hulls, have high requirements on the corrosion resistance of coatings. Ordinary organic resin and other anti-corrosion coatings are combined with pretreatment layers and primers, and zinc powder and other anodic protective agents are added at the same time. It has better corrosion resistance performance. However, the organic water-based anti-corrosion coating has strong water absorption and will cause swelling, which will reduce its shielding effect on corrosive media after a certain period of use. Therefore, it needs to be repaired and recoated after a period of use to ensure the normal operation of the ship. Therefore, a corrosion inhibitor is needed to help improve the corrosio...