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A water-based antirust liquid suitable for organic compound film formation on steel surface

A technology of steel surface and anti-rust liquid, applied in anti-corrosion coatings, biocide-containing paints, anti-fouling/underwater coatings, etc., can solve the problems of high cost of rust removal methods, weak anti-rust film, and non-environmental protection, etc. Achieve excellent protection performance, short processing time, and ensure stable results

Inactive Publication Date: 2021-06-29
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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  • A water-based antirust liquid suitable for organic compound film formation on steel surface
  • A water-based antirust liquid suitable for organic compound film formation on steel surface
  • A water-based antirust liquid suitable for organic compound film formation on steel surface

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 an aqueous antirust solution suitable for forming an organic composite film on the steel surface, which can form an organic composite protective film on the steel surface to prevent rerusting. The water-based anti-rust liquid contains the following components at the following concentrations: 1000-5000 ppm of boron-containing copolymers, 600-3000 ppm of organic acids containing ring structures, 500-1000 ppm of compounds containing polycarboxy groups, and 50-300 ppm of film-forming aids agent, 50-100ppm catalyst, and the balance of pure water; the film-forming aid is an oxygen-containing acid alkali metal salt compound; the pH value of the water-based anti-rust liquid is 8.5-9.5. The anti-rust liquid does not contain strong alkali, phosphorus and any toxic heavy metals, and can be used for dipping or spraying. Layer (such as paint, powder, etc.) high bonding strength, corrosion resistance has also been significantly improved.

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 Patents(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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