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Water-based antirust liquid suitable for steel surface organic composite film formation

A steel surface, anti-rust liquid technology, applied in anti-corrosion coatings, biocide-containing paints, anti-fouling/underwater coatings, etc., can solve the problems of unenvironmental protection, scratch resistance, low efficiency, etc., and improve corrosion resistance. , The effect of preventing rust again and excellent protective performance

Inactive Publication Date: 2020-09-04
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, non-environmental protection of the existing rust removal means, and the formed anti-rust film is not firm and scratch-resistant, and provides a water-based anti-rust film suitable for organic compound film formation on the surface of steel. liquid

Method used

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  • Water-based antirust liquid suitable for steel surface organic composite film formation
  • Water-based antirust liquid suitable for steel surface organic composite film formation
  • Water-based antirust liquid suitable for steel surface organic composite film formation

Examples

Experimental program
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Effect test

Embodiment 1

[0047] A water-based anti-rust solution suitable for organic compound film formation on steel surfaces, comprising components at the following concentrations:

[0048] Triisopropanolamine ring borate 2500ppm, ternary polycarboxylic acid 1700ppm, dibutyl sebacate 1000ppm, sodium gluconate 150ppm film-forming aid, rubidium carbonate 50ppm catalyst.

[0049] Stir and dissolve each component in water, adjust the pH value of the solution to 9.5, add pure water until the volume of the film-forming solution is 1000 mL, and obtain the film-forming solution described in this example.

[0050] The method for preparing the multiple organic composite membranes on the steel surface by using the film-forming solution described in this embodiment comprises the following steps:

[0051] (1) Pretreatment: ① Cut out a 50mm×100mm steel sample and punch a hole, and connect the iron wire at the hole; ② Polish the sample with sandpaper or chemically treat it until the original color of the substrat...

Embodiment 2

[0054] A water-based anti-rust solution suitable for organic compound film formation on steel surfaces, comprising components at the following concentrations:

[0055] Triisopropanolamine ring borate 1500ppm, ethyl borate 1000ppm, benzoic acid 1000ppm, dioctyl sebacate 1000ppm, disodium edetate 100ppm film-forming aid, rubidium sulfate 100ppm catalyst.

[0056] Stir and dissolve each component in water, adjust the pH value of the solution to 9.0, add pure water until the volume of the film-forming solution is 1000 mL, and obtain the film-forming solution described in this example.

[0057] The method for preparing the multiple organic composite membranes on the steel surface by using the film-forming solution described in this embodiment comprises the following steps:

[0058] (1) Pretreatment: ① Cut out a 50mm×100mm steel sample and punch a hole, and connect the iron wire at the hole; ② Polish the sample with sandpaper or chemically treat it until the original color of the su...

Embodiment 3

[0061] A water-based anti-rust solution suitable for organic compound film formation on steel surfaces, comprising components at the following concentrations:

[0062] Triphenyl borate 1000ppm, ethyl borate 2000ppm, benzoic acid 500ppm, ternary polycarboxylic acid 1500ppm, diisooctyl sebacate 1000ppm, sodium citrate 200ppm film-forming aid, rubidium nitrate 75ppm catalyst.

[0063] Stir and dissolve each component in water, adjust the pH value of the solution to 9.3, add pure water until the volume of the film-forming solution is 1000 mL, and obtain the film-forming solution described in this example.

[0064] The method for preparing the multiple organic composite membranes on the steel surface by using the film-forming solution described in this embodiment comprises the following steps:

[0065] (1) Pretreatment: ① Cut out a 50mm×100mm steel sample and punch a hole, and connect the iron wire at the hole; ② Polish the sample with sandpaper or chemically treat it until the ori...

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Abstract

The invention discloses a water-based antirust liquid suitable for steel surface organic composite film formation, which can form a layer of organic composite protective film on the surface of steel to prevent rusting again. The water-based antirust liquid comprises the following components in concentration: 1000 to 5000 ppm of a boron-containing copolymer, 600 to 3000 ppm of an organic acid containing an annular structure, 500 to 1000 ppm of a compound containing polycarboxyl, 50 to 300 ppm of a coalescing agent, 50 to 100 ppm of a catalyst, and the balance of pure water; the coalescing agentis an oxyacid alkali metal salt compound; and the pH value of the water-based antirust liquid is 8.5-9.5. The antirust liquid does not contain strong alkali, phosphorus or any toxic heavy metal, canadapt to impregnation or spraying, has the treatment temperature of normal temperature, the treatment time of soaking for 60-180s and the treatment time of spraying for 10-30s, has high bonding strength with a matrix and subsequent organic polymer coatings (such as paint and powder), and ahs obviously enhanced corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of the environment-friendly metal surface treatment technology for iron and steel surface rust prevention, in particular to an aqueous antirust solution suitable for organic composite film formation on the steel surface. Background technique [0002] Steel is an iron-carbon alloy, a binary alloy with iron and carbon as components. Its processed parts are widely used in various aspects of industrial production and life, play a very important role in human life and work, and are the basis of scientific and technological development. However, in the process of production, processing and transportation of steel, it is inevitable that it will contact with environmental media (such as water in the air, oxygen, acid-base media, organic media, etc.) to cause electrochemical corrosion and rust. Since 2008 , the world's annual steel output has exceeded one billion tons, and has maintained an average annual growth rate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D143/00C09D5/08C09D7/63C09D7/61C09D5/14
CPCC08K2003/3045C09D5/08C09D5/14C09D143/00C09D7/61C09D7/63C08K13/02C08K5/34922C08K5/11C08K5/1545C08K3/26C08K5/09C08K5/17C08K3/30C08K5/098C08K3/28
Inventor 刘宁华
Owner GUANGZHOU HONGSHUO ENVIRONMENTAL TECH
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