Environment-friendly type corrosion resistant composition for normal temperature descaling of metal materials

A metal material and environment-friendly technology, applied in the field of metal surface treatment, can solve the problems of high cost, low efficiency and unenvironmental protection of rust removal methods, and achieve the effect of excellent adhesion

Inactive Publication Date: 2019-04-16
GUANGZHOU HONGSHUO ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome many problems such as high cost, low efficiency and non-environmental protection of the existing rust removal methods, and provide an environment-friendly corrosion-resistant composition for rust removal of metal materials at room temperature

Method used

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  • Environment-friendly type corrosion resistant composition for normal temperature descaling of metal materials
  • Environment-friendly type corrosion resistant composition for normal temperature descaling of metal materials
  • Environment-friendly type corrosion resistant composition for normal temperature descaling of metal materials

Examples

Experimental program
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Effect test

Embodiment 1

[0037] An environment-friendly corrosion-resistant composition for derusting metal materials at room temperature, comprising the following components and mass fractions:

[0038]

[0039] Wherein, the acid agent is an unsaturated organic acid and its compound, and the penetrant includes the following components and molar ratio:

[0040] Dipropylene glycol 2

[0041] Diethylene glycol ether 2

[0042] Diethylene glycol butyl ether 3,

[0043] The acid agent is mixed with sorbic acid, potassium sorbate and sodium sorbate in a molar ratio of 1:1:1.

[0044] Such as figure 1 As shown, when applying this embodiment to remove oil stains and rust on the metal surface, a double protective film is formed on the surface. The specific reaction process is as follows:

[0045]When the metal is soaked in the treatment solution, the C5-7 isomeric alcohol polyoxyethylene ether and other substances in the treatment solution first react to emulsify the oil and dust on the surface of the ...

Embodiment 2

[0048] An environment-friendly corrosion-resistant composition for derusting metal materials at room temperature, comprising the following components and mass fractions:

[0049]

[0050]

[0051] Wherein, the acid agent is an unsaturated organic acid and its compound, and the penetrant includes the following components and molar ratio:

[0052] Dipropylene glycol 3

[0053] Diethylene glycol ether 3

[0054] Diethylene glycol butyl ether 4,

[0055] The acid agent is mixed with sorbic acid, potassium sorbate and sodium sorbate in a molar ratio of 1:1:1.

[0056] When this embodiment is applied to remove oil stains and rust on the metal surface, a double protective film is formed on the surface. At this time, the penetrant reacts with dipropylene glycol: diethylene glycol ethyl ether: diethylene glycol butyl ether in a molar ratio of 3:3:4, and the composite cross-linking points provided by dipropylene glycol reach the optimum content, forming a multilayer The qualit...

Embodiment 3

[0058] An environment-friendly corrosion-resistant composition for derusting metal materials at room temperature, comprising the following components and mass fractions:

[0059]

[0060] Wherein, the acid agent is an unsaturated organic acid and its compound, and the penetrant includes the following components and molar ratio:

[0061] Dipropylene glycol 4

[0062] Diethylene glycol ether 4

[0063] Diethylene glycol butyl ether 5,

[0064] The acid agent is mixed with sorbic acid, potassium sorbate and sodium sorbate in a molar ratio of 1:1:1.

[0065] When this embodiment is applied to remove oil stains and rust on the metal surface, a double protective film is formed on the surface. At this time, the penetrant reacts with dipropylene glycol: diethylene glycol ethyl ether: diethylene glycol butyl ether in a molar ratio of 4:4:5, and the content of composite crosslinking points provided by dipropylene glycol is within the allowable range, forming multiple The layered ...

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PUM

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Abstract

The invention discloses an environment-friendly type corrosion resistant composition for normal temperature descaling of metal materials. The environment-friendly type corrosion resistant compositioncan rapidly remove rust on the surfaces of the metal materials, and forms dual-layer protecting films on the surfaces of the metal materials to prevent secondary rusting. The environment-friendly typecorrosion resistant composition is prepared from the following components in percentage by mass: 12-20% of an acid agent, 3-8% of a reducing agent, 1-5% of an accelerant, 3-8% of a penetrating agent,1-2% of a non-ionic surface active agent, and the balance of pure water, wherein the acid agent is an unsaturated organic acid and chemical compound thereof; and the penetrating agent is prepared from the following components by molar ratio: 2-4 of dipropylene glycol, 2-4 of diethylene glycol diethyl ether, and 3-5 of diethylene glycol butyl ether. The environment-friendly type corrosion resistant composition is a synthetical composition capable of simultaneously oil removing, descaling and anti-rust-passivating, contains no inorganic phosphorus or organic phosphorus and other toxic heavy metals, in the treatment process, needs no heating, does not generate acid mist and harmful substances and cannot pollute the environment, and has excellent adhesive force with subsequent coatings.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to an environment-friendly corrosion-resistant composition for derusting metal materials at normal temperature. Background technique [0002] During the process of production, processing, storage and transportation, metal materials will inevitably come into contact with environmental media (such as water in the air, oxygen, acid-base media, organic media, etc.) to undergo electrochemical corrosion reactions and generate rust. The so-called rust is a mixture of oxides and hydroxides formed on the metal surface in the action of oxygen and water. Iron rust is red, copper rust is green, and the rust of aluminum and zinc is called white rust. Rust can cause damage to metal materials and deterioration of performance, thereby causing hidden dangers in product quality. The solution to these hidden dangers requires the use of products that can remove rust on the surface of m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/02C23G5/06
CPCC23G1/02C23G5/06
Inventor 刘宁华赖桂钦
Owner GUANGZHOU HONGSHUO ENVIRONMENTAL TECH
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