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Antirust coating for steel plate and preparation method for antirust coating

A technology for anti-rust coatings and steel plates, used in anti-corrosion coatings, polyester coatings, rosin coatings, etc., can solve the problems of low hardness, poor water resistance, poor heat and humidity resistance, and low impact strength

Inactive Publication Date: 2015-02-11
WUXI EPIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] This application aims at the technical problems of low hardness, low impact strength, poor water resistance and heat and humidity resistance of the existing water-soluble coatings, and provides an anti-rust coating using steel plates and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 100 parts of isopropanol, 25 parts of nitrocellulose, 0.1 part of sodium nitrite, 20 parts of methyl ethyl ketone, 0.2 part of nitrilo triethanolamine, 1 part of alkyd resin, and 1 part of three normal 2 parts of butylamine, 6 parts of ethylene glycol butyl ether acetate, 60 parts of petroleum pitch, 5 parts of n-butanol, 10 parts of glycerin rosin, 4 parts of methyl isobutyl ketone, 15 parts of heavy benzene, 2 parts of phthalocyanine blue .

[0027] Add asphalt into the reactor, raise the temperature to 220°C, stir for 10 minutes at a stirring speed of 200 rpm, cool down to 150°C, add heavy benzene, and react for 10 minutes.

[0028] Add sodium nitrite, nitrilotriethanolamine, tri-n-butylamine and isopropanol, stir for 5 minutes at a stirring speed of 500 rpm, add the remaining raw materials, mix for 30 minutes, filter and pack.

[0029] The hardness of the product is 0.5, the impact strength is 45cm; the outflow time is 65s, and the adhesion is grade 1; the wa...

Embodiment 2

[0032]Weigh 100 parts of isopropanol, 45 parts of nitrocellulose, 1 part of sodium nitrite, 40 parts of methyl ethyl ketone, 0.8 part of nitrilo triethanolamine, 5 parts of alkyd resin, 8 parts of butylamine, 14 parts of ethylene glycol butyl ether acetate, 80 parts of petroleum pitch, 25 parts of n-butanol, 30 parts of glycerin rosin, 16 parts of methyl isobutyl ketone, 35 parts of heavy benzene, 18 parts of phthalocyanine blue .

[0033] Add asphalt into the reactor, raise the temperature to 280°C, stir for 50 minutes at a stirring speed of 400 rpm, cool down to 190°C, add heavy benzene, and react for 30 minutes.

[0034] Add sodium nitrite, nitrilotriethanolamine, tri-n-butylamine and isopropanol, stir for 25 minutes at a stirring speed of 700 rpm, add the remaining raw materials, mix for 90 minutes, filter and pack.

[0035] The hardness of the product is 0.55, the impact strength is 60cm; the outflow time is 60s, and the adhesion is grade 1; the water resistance is immer...

Embodiment 3

[0038] Weigh 100 parts of isopropanol, 30 parts of nitrocellulose, 0.3 parts of sodium nitrite, 25 parts of methyl ethyl ketone, 0.4 parts of nitrilo triethanolamine, 2 parts of alkyd resin, 3 parts of butylamine, 8 parts of ethylene glycol ether acetate, 65 parts of petroleum pitch, 10 parts of n-butanol, 15 parts of glycerin rosin, 6 parts of methyl isobutyl ketone, 20 parts of heavy benzene, and 4 parts of yellow iron oxide.

[0039] Add asphalt into the reactor, raise the temperature to 240°C, stir for 20 minutes at a stirring speed of 250 rpm, cool down to 160°C, add heavy benzene, and react for 15 minutes.

[0040] Add sodium nitrite, nitrilotriethanolamine, tri-n-butylamine and isopropanol, stir for 10 minutes at a stirring speed of 550 rpm, add the remaining raw materials, mix for 50 minutes, filter and pack.

[0041] The hardness of the product is 0.6, the impact strength is 55cm; the outflow time is 55s, and the adhesion is grade 1; the water resistance is immersed i...

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Abstract

The invention discloses antirust coating for steel plates and a preparation method for the antirust coating. The preparation method comprises the following steps: weighing isopropanol, nitrocellulose, sodium nitrite, methyl ethyl ketone, nitrilo-triethanolamine, alkyd resin, tributylaminem, cellosolve, petroleum asphalt, n-butyl alcohol, glycerin rosin, methylisobutylketone, heavy benzene and pigment, and filtering and packaging after mixing; the product hardness is 0.5-0.7, and the impact strength is 45-65cm; the flow time is 45-65s, and the adhesive force is first level; the water tolerance of the antirust coating is good, so that if immersed in water of 35 DEG C for 2-6d, the antirust coating does not bubble or fall off; surface dry is 1-3h, and hard dry is 8-10h.

Description

technical field [0001] The invention relates to a coating for steel surfaces, in particular to a steel plate antirust coating and a preparation method thereof. [0002] Background technique [0003] Antirust coatings are coatings that protect metal surfaces from chemical or electrochemical corrosion of the atmosphere, sea water, etc. Coating anti-rust coatings on the metal surface can effectively prevent the direct invasion of various corrosive substances in the atmosphere, so as to maximize the extension of the service life of the metal. It can be divided into two categories: physical and chemical antirust paint. The former relies on the proper coordination of pigments and paints to form a dense paint film to prevent the intrusion of corrosive substances, such as iron red, aluminum powder, graphite antirust paint, etc.; the latter relies on the chemical antirust effect of antirust pigments, such as red Dan, iron oxide yellow antirust paint, etc. Used for rust prevention...

Claims

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Application Information

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IPC IPC(8): C09D195/00C09D193/04C09D101/18C09D167/08C09D5/08C09D7/12
CPCC09D195/00C08L2201/08C08L2205/035C09D5/08
Inventor 尤为
Owner WUXI EPIC TECH
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