Amino Alcohol Composite Rust Inhibitor and Its Application

Abstract

The invention provides an amino alcohol composite rust inhibitor and its application. In terms of parts by mass, it includes: 8-10 parts of polymerized polyamino alcohol; 35-53 parts of adsorption corrosion inhibitor; 11-16 parts of concrete performance improver; 30-40 parts of water; Polymers of diol, propylene glycol and glycerin; adsorption corrosion inhibitors in parts by mass include: 10-14 parts of triethanolamine; 10-15 parts of modified cyanamide; 5-8 parts of polymerized polyol; polymerized alcohol 10-16 parts of amine; the concrete performance improver in parts by mass includes: 0.01-0.04 parts of air-entraining agent; 0.1-0.2 parts of anti-settling emulsifier; 0.01-0.02 parts of early anti-shrinkage agent; 3-5 parts of viscosity modifier ; 8-10 parts of plasticizer. The rust inhibitor is blended into concrete to make steel bars have excellent rust resistance, and can be used for corrosion and rust prevention of reinforced concrete in cold regions and sulfate and chloride corrosion environments.

Description

technical field [0001] The invention relates to the technical field of anticorrosion of building steel bars, in particular to an amino alcohol composite rust inhibitor used for corroding reinforced concrete in cold regions and environments eroded by sulfate and chloride salts and its application. Background technique [0002] At present, there are many common ways to prevent corrosion of steel bars, such as coating the surface of concrete with penetrating crystalline materials, coating the surface of steel bars with anti-rust paint, configuring anti-corrosion concrete with anti-sulfate cement, or using anti-corrosion agents for concrete steel bars. Practice has proved that the addition of rust inhibitors is an economical and effective supplementary measure to prevent corrosion of steel bars in harsh environments when mixing concrete mixtures. However, nitrite rust inhibitors, which are widely used in rust inhibitors, are more harmful to the environment. If they are used irre...

AI Technical Summary

Problems solved by technology

However, nitrite rust inhibitors, which are widely used in rust inhibitors, are more harmful to the environment. If they are used irregularly, they will increase the corrosion of steel bars and there is a risk; while phosphate and carbonate rust inhibitors are used in large amounts and cost High, less popularization and application; in the prior art, organic rust inhibitors are also used for rust prevention of steel bars, but the performance of existing organic rust inhibitors is relatively simple, and they are easily affected by the hardening state of materials and concrete. Low efficiency, poor adaptability to the environment, and cannot be adjusted according to the actual use environment, and the anti-rust effect is poor

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