Antirust coating for steel facilities under oceanity condition and preparation method thereof

An anti-rust coating, marine technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems that the anti-corrosion coating does not have self-healing performance, cannot automatically repair ship corrosion, and achieve good atmospheric corrosion Corrosion inhibition, chemical solvent resistance, corrosion inhibitor stability effect

Inactive Publication Date: 2017-11-24
ZHEJIANG YUTONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technology does not have self-healing properties for anti-corrosion coatings on steel ships, and cannot automatically repair the corrosion suffered by ships over the years

Method used

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  • Antirust coating for steel facilities under oceanity condition and preparation method thereof
  • Antirust coating for steel facilities under oceanity condition and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0050] The synthetic method of diphenolic propane epoxy resin comprises the steps:

[0051] A. Add hydrogenated bisphenol A, epichlorohydrin, sodium hydroxide and toluene in sequence in the three-necked flask, heat and stir;

[0052] B. Add distilled water to remove alkali, and continue heating to 70°C;

[0053] c. Add aqueous sodium hydroxide solution and stir for 3 hours;

[0054] d. Wash the liquid separation with distilled water until the pH value of the separated water layer is neutral;

[0055] E. The filtrate is distilled at 100° C., and the tail gas in the condensation and deposition process is vented.

[0056] The preparation method of vapor phase corrosion inhibitor:

[0057] (1) configure the aqueous solution of propargylamine by formula quantity;

[0058] (2) Add dimethyl sulfoxide in the formula ratio to the aqueous solution of propargylamine and mix to obtain the gas phase corrosion inhibitor.

Embodiment 1

[0060] One, prepare gas-phase antirust coating according to the following raw material ratio:

[0061] Bisphenol A epoxy resin 28%

[0062] Vapor phase corrosion inhibitor (8% alkyne amine, 9% dimethyl sulfoxide and 83% water) 10%

[0063] Zinc Phosphate 44%

[0064] Auxiliary 1%

[0065] Organic solvent 17% 2. Specific preparation method of vapor phase antirust coating:

[0066] (1) Epoxy resin and organic solvent are weighed according to the formula and put into the cylinder;

[0067] (2) Add gas-phase corrosion inhibitors and additives, and stir at low speed for 15 minutes with a high-speed disperser until the dispersion is uniform;

[0068] (3) Add pigments and fillers to the mixture in step (2), stir and disperse at high speed at 1200-1500r / min for 30 minutes, heat up to 55°C, and keep warm for 15 minutes;

[0069] (4) Grind for 2 hours until the fineness is qualified and the fineness of the paint is below 100 μm, filter, pack, and obtain a vapor phase antirust paint...

Embodiment 2

[0074] One, prepare gas-phase antirust coating according to the following raw material ratio:

[0075] Bisphenol A epoxy resin 30%

[0076] Vapor phase corrosion inhibitor (10% propargyl amine, 12% dimethyl sulfoxide and 78% water) 8%

[0077] Iron Oxide Red 45%

[0078] Auxiliary 3%

[0079] Organic solvent 14%

[0080] Second, the specific preparation method of vapor phase antirust coating:

[0081] (1) Epoxy resin and organic solvent are weighed according to the formula and put into the cylinder;

[0082] (2) Add gas-phase corrosion inhibitors and additives, and stir at low speed for 15 minutes with a high-speed disperser until the dispersion is uniform;

[0083] (3) Add pigments and fillers to the mixture in step (2), stir and disperse at high speed at 1200-1500r / min for 30 minutes, heat up to 55°C, and keep warm for 15 minutes;

[0084] (4) Grind for 2 hours until the fineness is qualified and the fineness of the paint is below 100 μm, filter, pack, and obtain a vap...

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PUM

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Abstract

The invention provides an anti-rust coating for steel facilities under an oceanity condition and a preparation method thereof. The anti-rust coating provided by the invention is prepared from the following components in percentage by mass: 26-28 percent of diphenol propane epoxy resin, 5-8 percent of vapor-phase corrosion inhibitor, 13-18 percent of organic solvent, 43-55 percent of pigment and filler and 1-3 percent of auxiliary agent. The technical scheme provided by the invention overcomes the defect that the traditional anti-rust pigment has great toxicity while improving corrosion resistance of a coating layer, can quickly act on a metal surface, provides corrosion inhibition protection, has long-lasting protection and has a high utilization rate. The anti-rust coating can be applied to the protection of steel facilities under the oceanity condition, such as the construction and maintenance of of ships, petrochemical facilities and large bridges.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to an antirust coating for iron and steel facilities under marine conditions and a preparation method thereof. Background technique [0002] Ship and ocean engineering equipment has the characteristics of high technology, high investment, high output, high added value and high risk, and also requires high safety and high reliability. Ships and marine engineering structures mainly use metal materials. Metal materials that have long-term service in this highly corrosive marine environment must take corrosion protection measures. In order to prevent the occurrence and development of metal corrosion, metal rust removal, rust prevention, and anticorrosion work have to be carried out; there are many methods to prevent metal corrosion, and the metal protection methods currently used can be divided into three categories: one is anodic oxidation treatment, in A layer of tens of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C08G59/06
CPCC09D163/00C08G59/063C09D5/08C08L77/00
Inventor 梁新方江雪琴潘正文
Owner ZHEJIANG YUTONG NEW MATERIAL
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