Water-based rust inhibitor for steel surfaces and preparation method thereof

A water-based anti-rust agent, steel surface technology, applied in anti-corrosion coatings, coatings and other directions, can solve the problems of high cost, high price and complicated production of anti-rust agent, and achieve long anti-rust time, good environmental protection effect, and preparation simple craftsmanship

Inactive Publication Date: 2015-02-18
WUXI EPIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent No. CN03111171.8 proposes a formula to replace sodium nitrite, but it is complicated to make and inconvenient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Example 1

[0014] The water-based rust inhibitor used on the surface of steel in this embodiment is prepared from the following components by weight: 14 parts of polyisobutylene, 5 parts of triethanolamine, 5 parts of potassium persulfate, 6 parts of borax, and 7 parts of surfactant , 5 parts of ammonium gluconate, 6 parts of N,N-bis(2-cyanoethyl) formamide, 16 parts of polyacrylate, 5 parts of sebacic acid, 13 parts of glycerin, 6 parts of zinc dihydrogen phosphate, thickener 4 parts, 7 parts of sorbitol, 3 parts of dimethylamino-p-phenol and 98 parts of deionized water.

[0015] The thickener is aluminum silicate.

[0016] The surfactant is polyoxyethylene fatty alcohol ether.

[0017] The water-based rust inhibitor used on the surface of steel in this embodiment includes the following steps: first, by weight ratio of polyisobutylene, triethanolamine, N,N-bis(2-cyanoethyl)formamide, and dimethylamino Phenol, polyacrylate and deionized water were added to the stainless stee...

Example Embodiment

[0019] Example 2

[0020] The water-based rust inhibitor used on the surface of steel in this embodiment is prepared from the following parts by weight: 11 parts of polyisobutylene, 4 parts of triethanolamine, 2 parts of potassium persulfate, 3 parts of borax, and 5 parts of surfactant , 4 parts of ammonium gluconate, 3 parts of N,N-bis(2-cyanoethyl)formamide, 14 parts of polyacrylate, 3 parts of sebacic acid, 10 parts of glycerin, 4 parts of zinc dihydrogen phosphate, thickener 3 parts, 5 parts of sorbitol, 1 part of dimethylamino-p-phenol and 90 parts of deionized water.

[0021] The thickener is diatomaceous earth.

[0022] The surfactant is polyoxyethylene fatty alcohol ether.

[0023] The water-based rust inhibitor used on the surface of steel in this embodiment includes the following steps: first, by weight ratio of polyisobutylene, triethanolamine, N,N-bis(2-cyanoethyl)formamide, and dimethylamino Phenol, polyacrylate and deionized water were added to the stainless steel rea...

Example Embodiment

[0025] Example 3

[0026] The water-based rust inhibitor for the surface of steel in this embodiment is prepared from the following parts by weight: 15 parts of polyisobutylene, 6 parts of triethanolamine, 6 parts of potassium persulfate, 7 parts of borax, and 8 parts of surfactant , 6 parts of ammonium gluconate, 7 parts of N,N-bis(2-cyanoethyl)formamide, 18 parts of polyacrylate, 6 parts of sebacic acid, 14 parts of glycerin, 8 parts of zinc dihydrogen phosphate, thickener 5 parts, 10 parts of sorbitol, 4 parts of dimethylamino-p-phenol and 100 parts of deionized water.

[0027] The thickener is bentonite.

[0028] The surfactant is coconut oil fatty acid diethanolamide.

[0029] The water-based rust inhibitor used on the surface of steel in this embodiment includes the following steps: first, by weight ratio of polyisobutylene, triethanolamine, N,N-bis(2-cyanoethyl)formamide, and dimethylamino Phenol, polyacrylate and deionized water were added to the stainless steel reactor, he...

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Abstract

The invention discloses a water-based rust inhibitor for steel surfaces and a preparation method thereof. The preparation method comprises the following steps: proportionally adding polyisobutylene, triethanolamine, N,N-bis(2-cyanoethyl)formamide, dimethylamino-p-phenol, polyacrylate and deionized water into a stainless steel reaction kettle, heating to 130+/-5 DEG C, starting stirring, adding surfactant, sebacic acid, glycerol, zinc dihydrogen phosphate, thickener and sorbitol, heating to 185-195 DEG C at the rate of 10-15 DEG C/hour, reacting for 2-3 hours, stopping heating, adding ammonium gluconate, potassium persulfate and borax, and dissolving by evenly mixing. The rust inhibitor has excellent antirust effect for steel, and can form an ultrathin antirust film on the surface to prevent the corrosion from the outside. The water-based rust inhibitor for steel surfaces is nontoxic and harmless to the human body, and has favorable environment-friendly effect; and the antirust time can reach 6-8 months. The method has the advantages of simple technique, wide component sources and low price.

Description

technical field [0001] The invention relates to a steel surface treatment technology, in particular to a water-based antirust agent for the steel surface and a preparation method thereof. Background technique [0002] At present, with the continuous development of industry, the use of steel is also increasing. However, during the production process or the storage process of finished products, steel plates are easily oxidized and rusted when encountering humid air and rainy days, which affects the appearance quality of products. This has brought problems to the use of steel, and the annual loss of steel due to corrosion is very alarming. In order to prevent surface corrosion, antirust treatment must be carried out; Protective oil film, so as to isolate the corrosion of metal by water vapor in the air, and achieve the purpose of rust prevention. However, the use of antirust oil requires a large amount of oil raw materials, which intensifies energy consumption and increases cos...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D123/20C09D7/12C09D5/08
CPCC09D133/04C08L2205/03C09D5/08C09D7/61C09D7/63C09D7/65
Inventor 尤为
Owner WUXI EPIC TECH
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