Preparation method for novel steel bar rust inhibitor

Abstract

The invention provides a preparation method for a novel steel bar rust inhibitor. Reactants comprise organic alcohol amine, organic carboxylic acid and deionized water; the organic alcohol amine reacts with the organic carboxylic acid at a temperature of 85 DEG C for 2 h, and then deionized water is added so as to produce the novel steel bar rust inhibitor. The invention has the following beneficial effects: the prepared rust inhibitor poses no negative influence on slump, strength and coagulation time of concrete and has good compatibility with a concrete system and a substantial rust inhibition effect.

Description

technical field [0001] The invention belongs to the technical field of building construction and relates to a preparation method of a novel steel bar rust inhibitor. Background technique [0002] There are many technical measures to prevent the corrosion of steel bars. On the basis of improving the compactness of concrete, the use of rust inhibitors for steel bars is the most common method, and it is the simplest, most economical and effective technical measure. [0003] Domestic research on new steel rust inhibitors has developed rapidly in recent years, but most of the research on its anti-rust performance is concentrated on mortar, and less research on concrete. [0004] At present, the most widely used rust inhibitors in China are nitrite rust inhibitors. If the amount of this kind of rust inhibitor is insufficient, it will accelerate the corrosion of steel bars and have a negative impact on the environment and human health. Contents of the invention [0005] The prob...

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Problems solved by technology

[0004] At present, the most widely used rust inhibitors in China are nitrite rust inhibitors. When the amount of this kind of rust inhibitor is insufficient, it will accelerate the corrosion of steel bars and have a negative impact on the environment and human health.