A steel bar rust inhibitor containing gemini amino ester

A kind of steel bar rust inhibitor and amino ester technology, applied in the field of steel bar rust inhibitor, can solve the problem of little attention to the long-term effect of rust inhibitor, and achieve the effect of improving long-term effect, dense adsorption, and strong controllability

Active Publication Date: 2020-08-07
JIANGSU SOBUTE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reported organic rust inhibitors still seldom pay attention to the long-term effect of rust inhibitors. In order to better enhance the performance of rust inhibitors and their application effects in engineering, relevant research is urgently needed

Method used

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  • A steel bar rust inhibitor containing gemini amino ester
  • A steel bar rust inhibitor containing gemini amino ester
  • A steel bar rust inhibitor containing gemini amino ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A steel bar rust inhibitor containing Gemini amino ester, R in the amino ester structure 1 , R 2 Both are decyl, R 3 and for -(CH 2 ) m CH 3 ,m=0; R 4 for -(CH 2 ) q CH 2 OH, q=1, x=10, content 8%; organic amine is N,N-dimethylethanolamine, content 2%, acid is oleic acid and tert-butylbenzoic acid, content 3%, the rest is water, marked as S1 .

Embodiment 2

[0025] A steel bar rust inhibitor containing Gemini amino ester, R in the amino ester structure 1 is methyl, R 2 Both are octyl, R 3 and R 4 Both are -(CH 2 ) q CH 2 OH, q=1, x=20, the content is 20%; the organic amine is diethylenetriamine, the content is 4%, the acid is benzoic acid, the content is 5%, and the rest is water, marked as S2.

Embodiment 3

[0027] A steel bar rust inhibitor containing Gemini amino ester, R in the amino ester structure 1 is phenyl, R 2 is 9-alkenyl-17 alkyl, R 3 and R 4 Both are -CH 2 CH 2 (NHCH 2 CH 2 ) p NH 2 , p=0, x=50, content 20%; organic amine is ethanolamine, content 8%, acid is phosphoric acid and nitrobenzoic acid (1:1), content 3%, the rest is water, marked as S3.

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PUM

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Abstract

The invention discloses a rebar corrosion inhibitor containing Gemini amino ester, made by mixing, by weight, 8-60% of Gemini amino ester, 2-10% of organic amine, 2-15% of an acid, 15-88% of water. Byintroducing novel Gemini amino ester structure, the rebar corrosion inhibitor can adsorb to the surface of rebars more evenly and compactly; the rebar corrosion inhibitor has high structural adjustability, has significantly reduced volatilizing and dissipating chances, can remain in concrete for long time and can firmly adsorb to the surface of rebars; the rebar corrosion inhibitor forms a three-dimensional protective film of passivating film, depositing film and adsorbing film with optimized structure on the surface of rebars, screening action is provided for corrosive media, and chances forchloride ions and the like to contact rebar bases are decreased; the rebar corrosion inhibitor has certain hydrophobic property, electrochemical corrosive reaction on the surface of rebars is significantly reduced, and long-term action of the rebar corrosion inhibitor is greatly improved.

Description

technical field [0001] The invention relates to a steel bar rust inhibitor, specifically comprising a steel bar rust inhibitor containing Gemini amino ester, and belongs to the technical field of organic rust inhibitors. Background technique [0002] Reinforced concrete is widely used in infrastructure construction, but the long life and high durability of concrete is still an unsolved problem. The main factor affecting the durability of concrete is the corrosion of steel bars. In recent years, with the expansion of national large-scale engineering construction and the deterioration of natural conditions, the corrosion of steel bars in concrete has become increasingly apparent, which has brought immeasurable losses to the national economy or the safety of people's lives and properties. Therefore, protecting steel bars and realizing high performance and durability of reinforced concrete structures has become an urgent problem to be solved. [0003] Preventing and controlling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/12C04B24/32C04B103/61
CPCC04B40/0039C04B2103/61C04B24/122C04B24/04C04B24/32C04B24/121C04B22/165
Inventor 刘加平蔡景顺石亮刘建忠周霄骋
Owner JIANGSU SOBUTE NEW MATERIALS
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