Preparation method for biological steel reinforcement corrosion inhibitor

Abstract

The invention discloses a preparation method for a biological steel reinforcement corrosion inhibitor, and belongs to the technical field of preparation of corrosion inhibitors. The method comprises the following steps: crushing and impregnating fresh flagellates in a citrate buffer solution, performing filtration and drying to obtain a dried product for later use, mixing dunaliella salina powder, zinc oxide and citric acid for reaction, performing filtration to obtain filtrate and filter residues, mixing a flushing fluid and the filtrate, performing concentration to obtain a concentrated solution for later use, mixing and filtering the filter residues, the dried product obtained for later use, gluconic acid and the like after drying, and mixing a product, a mixed solution prepared from the concentrated solution and a calcium chloride solution and the like to obtain the biological steel reinforcement corrosion inhibitor. The preparation method has the beneficial effects that the preparation steps are simple; the steel reinforcement corrosion inhibitor is prepared from the flagellates, and is safe, nontoxic and high in corrosion inhibition capability; after the biological steel reinforcement corrosion inhibitor is used, the steel reinforcement corrosion inhibition effect is good, the using amount is reduced by 15.6 to 18.3 percent, corrosion to steel reinforcement is retarded, and the service life of a steel reinforcement structure is prolonged by 5 to 8 years.

Description

technical field [0001] The invention relates to a preparation method of a biological steel bar rust inhibitor, belonging to the technical field of embroidery inhibitor preparation. Background technique [0002] Steel bar rust inhibitor, an admixture mixed into concrete to prevent or slow down the corrosion of steel bars. Steel bar rust inhibitor refers to chemical substances added to concrete or painted on the surface of concrete to prevent or slow down the corrosion of steel bars. Some additives or external coating protective agents that can improve the protective performance of concrete on steel bars do not belong to the category of steel bar rust inhibitors. Steel bar rust inhibitors must be able to directly prevent or delay steel bar corrosion. Its types include anodic steel rust inhibitor, cathodic steel rust inhibitor and composite steel steel rust inhibitor. The anode-type steel bar rust inhibitor acts on the anode area, and inhibits the steel bar corrosion by preve...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the disadvantages that the current steel bar rust inhibitor cannot be well diffused in concrete, so when it is used for the repair of concrete structure, it has poor inhibitory effect on steel bar corrosion, poor anti-rust ability and large usage amount, provides A kind of fresh dinoflagellates is crushed, soaked in citrate buffer solution, filtered and dried to obtain a dried product for later use, then mixed with Dunaliella salina powder, zinc oxide and citric acid and filtered to obtain a filtrate and a filter residue, the filter residue is washed, dried, rinsed The liquid and the filtrate are mixed and concentrated to obtain a concentrated liquid for future use, and after drying, the filter residue is mixed with the dry matter for use, gluconic acid, etc., and then mixed with the concentrated liquid and calcium chloride solution to obtain a mixed liquid, etc. to prepare a biological steel rust inhibitor.