A kind of anti-rust protective coating with rust conversion function and preparation method

A technology of rust conversion and rust conversion agent, which is applied in coatings, anti-corrosion coatings, etc., can solve the problems of complex preparation process and field engineering application limitations, and achieve the advantages of simple preparation method, excellent anchoring performance, and improved rust removal and protection. Effect

Active Publication Date: 2022-05-06
YANTAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantage is that the preparation process is more complicated, and there are certain limitations in the actual field engineering application.

Method used

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  • A kind of anti-rust protective coating with rust conversion function and preparation method
  • A kind of anti-rust protective coating with rust conversion function and preparation method
  • A kind of anti-rust protective coating with rust conversion function and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Dosing according to the following weight: acidic resin emulsion with a solid content of 60%, defoamer with a mass of 1‰ of the acidic resin emulsion, wetting agent with a mass of 1‰ of the acidic resin emulsion, and thickener with a mass of 1‰ of the acidic resin emulsion.

[0032] When preparing the rust protective coating, proceed as follows:

[0033] 1) Weigh according to the parts by weight of each component;

[0034] 2) Add coating additives such as defoamer, wetting agent and thickener to the acidic resin emulsion in turn. That is, the rust-carrying protective coating is obtained.

Embodiment 2

[0036] Solid content is 90 parts of the acidic resin emulsion of 60%, 10 parts of rust conversion agent; The defoamer of acidic resin emulsion and rust conversion agent gross mass 1‰, the wetting agent of acidic resin emulsion and rust conversion agent gross mass 1‰ and A thickener with a total mass of 1‰ of acidic resin emulsion and rust converting agent.

[0037] Wherein the rust converting agent is prepared from raw materials in the following mass ratios: according to the mass parts, by 1 part of phosphoric acid, 1 part of tannic acid, 5 parts of citric acid, 5 parts of benzoic acid, 5 parts of n-octanoic acid, 5 parts of ethanol, 5 parts of Parts of sodium secondary alkyl sulfonate, 5 parts of alcohol amine compounds and 10 parts of deionized water.

[0038] Wherein, the mass concentration of phosphoric acid is 25%, the mass concentration of tannic acid is 55%, the mass concentration of citric acid is 50%, the mass concentration of benzoic acid is 45%, and the mass concent...

Embodiment 3

[0045] Solid content is 80 parts of the acidic resin emulsion of 60%, 20 parts of rust conversion agent; The defoamer of acidic resin emulsion and rust conversion agent gross mass 1‰, the wetting agent of acidic resin emulsion and rust conversion agent gross mass 1‰ and A thickener with a total mass of 1‰ of acidic resin emulsion and rust converting agent.

[0046] The rust converting agent is prepared from raw materials in the following proportions: 5 parts of phosphoric acid, 5 parts of tannic acid, 10 parts of citric acid, 10 parts of benzoic acid, 15 parts of n-octanoic acid, 10 parts of ethanol, 10 parts of secondary alkylsulfonate Sodium acid sodium, 15 parts of alcohol amine compounds and 20 parts of deionized water.

[0047] Wherein, the mass concentration of phosphoric acid is 30%, the mass concentration of tannic acid is 50%, the mass concentration of citric acid is 40%, the mass concentration of benzoic acid is 50%, and the mass concentration of n-octanoic acid is 60%...

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Abstract

The invention relates to a rust-carrying protective coating with rust conversion function and a preparation method. The rust protective paint of the present invention comprises 10-40 parts of rust conversion agent, 60-90 parts of acid resin emulsion, acid resin emulsion and rust conversion agent with a total mass of 1‰-5‰ of defoamer, acid resin emulsion and rust conversion agent. Thickener with a mass of 1‰‑5‰, acid resin emulsion and rust converter with a total mass of 1‰‑5‰ wetting agent. The invention evenly paints the rust protective coating with the function of rust transformation on the surface of the corroded steel bar, and can dissolve and transform the rust layer under normal temperature conditions to form a polymer protective film, effectively transform the rust layer to improve the utilization rate of the steel bar, and re-build the reinforced concrete structure. During pouring, the coating has excellent bonding and anchoring properties with concrete, and can prevent rust without affecting the performance of concrete. The anti-rust coating has the characteristics of environmental protection, low cost, strong adhesion and high corrosion resistance.

Description

technical field [0001] The invention relates to a protective coating material with rust, in particular to a long-acting polymer protective coating with rust conversion function. The invention also relates to a method for preparing the protective coating. Background technique [0002] In the general atmospheric environment, the reduction of concrete alkalinity caused by carbonization is the main reason for the corrosion of steel bars in concrete. Concrete, when the surface of the steel bar reaches a certain concentration, even if the alkalinity of the concrete does not decrease, the steel bar will rust. Due to the uncertainty in the transportation and construction process, corrosion products have been produced on the surface of the steel bar before pouring, which significantly reduces the mechanical properties of the steel bar, resulting in a decrease in the safety and durability of the building structure. The time used also affects the project investment benefit and the ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D201/00C09D5/08
CPCC09D201/00C09D5/08C08K2003/329C08K2201/014C08K13/02C08K3/32C08K5/092C08K5/09C08K5/42C08K5/17
Inventor 刘志勇陈阳李世宇孙德勇钱百惠
Owner YANTAI UNIV
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