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Rust removal antirust coating for steel and iron and preparation method of rust removal antirust coating

An anti-rust coating and steel technology, applied in anti-corrosion coatings, asphalt coatings, coatings, etc., can solve the problems of low adhesion, poor impact resistance, low hardness, etc., and achieve good heat and humidity resistance, smooth and bright appearance.

Inactive Publication Date: 2016-09-21
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, poor impact resistance, low adhesion, slow drying and poor flexibility of existing coatings for steel surfaces, and provides a rust-removing and anti-rust coating for steel and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take by weighing 100 parts of petroleum pitch, 2 parts of zinc chrome yellow, 20 parts of phosphorus zinc white, 15 parts of polyvinyl butyral, 1 part of tannic acid, 0.5 part of iron oxide, 26 parts of xylene, 10 parts of cobalt naphthenate, 2 parts of manganese naphthenate, 3 parts of cooked tung oil, 30 parts of aluminum powder paste.

[0024] Heat, melt and dehydrate petroleum asphalt to remove impurities, then heat up to 280°C, keep it warm for 30 minutes, cool to 100°C, add zinc chrome yellow, phosphorus zinc white, polyvinyl butyral, tannic acid, iron oxide and xylene In a reaction kettle equipped with a stirrer and a thermometer, stir for 20 min at a stirring speed of 200 rpm.

[0025] Add the remaining raw materials and grind in a grinder for 20 minutes.

[0026] The appearance of the coating film is smooth and bright, the viscosity is 50s, the surface is dry for 50 minutes, and it is hard to dry for 22 hours; the flexibility is 1mm, and it has good adhesion t...

Embodiment 2

[0028] Take by weighing 100 parts of petroleum pitch, 6 parts of zinc chrome yellow, 40 parts of phosphorus zinc white, 35 parts of polyvinyl butyral, 5 parts of tannic acid, 4.5 parts of iron oxide, 30 parts of xylene, 30 parts of cobalt naphthenate, 6 parts of manganese naphthenate, 7 parts of cooked tung oil, 50 parts of aluminum powder paste.

[0029] Heat and melt the petroleum asphalt for dehydration to remove impurities, then raise the temperature to 300°C, keep it warm for 50 minutes, cool to 140°C, and add zinc chrome yellow, phosphorus zinc white, polyvinyl butyral, tannic acid, iron oxide and xylene In a reaction kettle equipped with a stirrer and a thermometer, stir for 30 min at a stirring speed of 400 rpm.

[0030] Add the remaining raw materials and grind in a grinder for 40 minutes.

[0031]The appearance of the coating film is smooth and bright, the viscosity is 60s, the surface is dry for 45 minutes, and it is hard for 21 hours; the flexibility is 2mm, and i...

Embodiment 3

[0033] Take by weight 100 parts of petroleum pitch, 3 parts of zinc chrome yellow, 25 parts of phosphorus zinc white, 20 parts of polyvinyl butyral, 2 parts of tannic acid, 1.5 parts of iron oxide, 27 parts of xylene, 15 parts of cobalt naphthenate, 3 parts of manganese naphthenate, 4 parts of cooked tung oil, 35 parts of aluminum powder slurry.

[0034] Heat and melt the petroleum asphalt for dehydration to remove impurities, then raise the temperature to 300°C, keep it warm for 50 minutes, cool to 140°C, and add zinc chrome yellow, phosphorus zinc white, polyvinyl butyral, tannic acid, iron oxide and xylene In a reaction kettle equipped with a stirrer and a thermometer, stir for 30 min at a stirring speed of 400 rpm.

[0035] Add the remaining raw materials and grind in a grinder for 40 minutes.

[0036] The appearance of the coating film is smooth and bright, the viscosity is 70s, the surface is dry for 40 minutes, and the hard work is 20 hours; the flexibility is 2mm, and...

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Abstract

The invention discloses a rust removal antirust coating for steel and iron and a preparation method of the rust removal antirust coating. The preparation method comprises the following steps: weighing petroleum asphalt, zinc chrome, zinc phosphate, polyvinyl butyral, tannic acid, ferric oxide, dimethylbenzene, cobalt naphthenate, manganese naphthenate, boiled tung oil and aluminum paste, stirring the raw materials and then grinding the stirred raw materials, wherein the coating is smooth and bright in appearance, the viscosity is 50-90 s, surface drying time is for 30-50 min, and hard drying time is 18-22 h; the flexibility is 1-3 mm, and the coating has high adhesive force for metals; the coating has certain corrosion resistance on acids and bases, the water resistance is 3-7 d under the condition of soaking in water of 30 DEG C, the coating is free of bubbling or dropping, and the shock resistance is 50-70 cm; the fineness is 25-45 microns, the solid content is 30%-50%, and the resistance to heat and humidity is high.

Description

technical field [0001] The invention relates to a paint for iron and steel surfaces, in particular to a rust-removing and antirust paint for iron and steel and a preparation method thereof. Background technique [0002] 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 combination of talc powder and paint to form a dense paint film to prevent the intrusion of corrosive substances, such as iron red, aluminum powder, graphite anti-rust paint, etc.; the latter relies on the chemical anti-rust effect of anti-rust talc powder, Such as red lead, zinc yellow antirust paint and so on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D7/12C09D5/10
CPCC09D195/00C08L2205/03C09D5/103C09D7/61C09D7/63C08L29/14C08K13/02C08K2003/0812C08K2003/2272C08K5/01
Inventor 尤为
Owner WUXI EPIC TECH
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