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Steel antirust coating and preparation method thereof

A technology for anti-rust coatings and steel, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of slow drying, low hardness, low adhesion, etc.

Inactive Publication Date: 2017-05-31
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical problems of low hardness, poor impact resistance, low adhesion, slow drying and poor flexibility of the existing coatings for steel surface, the invention provides an 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] Weigh 80 parts of epoxy resin, 1 part of isopropanol, 15 parts of butanol, 0.5 part of aluminum paste, 10 parts of butyl acrylate, 6 parts of methyl methacrylate, 4 parts of acrylic acid, benzene 30 parts of ethylene, 2 parts of barium sulfate, 3 parts of zinc phosphate, 5 parts of modified aluminum tripolyphosphate, 0.2 part of sodium bicarbonate, 0.1 part of ammonium persulfate, 6 parts of talcum powder.

[0024] Put epoxy resin, isopropanol, butanol, aluminum powder paste, butyl acrylate, methyl methacrylate and acrylic acid into a reaction kettle equipped with a stirrer and a thermometer, and stir for 10 minutes at a stirring speed of 200 rpm.

[0025] Add the remaining raw materials and grind in a grinder for 15 minutes.

[0026] The appearance of the coating film is smooth and bright, the viscosity is 80s, the surface is dry for 50min, and the hard drying is 19h; the flexibility is 1mm, the adhesion is grade 2; the water resistance is immersed in 30°C water for 3 ...

Embodiment 2

[0028] Take by weight 80 parts of epoxy resin, 5 parts of isopropanol, 35 parts of butanol, 2.5 parts of aluminum powder, 50 parts of butyl acrylate, 14 parts of methyl methacrylate, 8 parts of acrylic acid, benzene 50 parts of ethylene, 6 parts of barium sulfate, 7 parts of zinc phosphate, 9 parts of modified aluminum tripolyphosphate, 0.6 parts of sodium bicarbonate, 0.5 parts of ammonium persulfate, and 10 parts of talcum powder.

[0029] Put epoxy resin, isopropanol, butanol, aluminum powder slurry, butyl acrylate, methyl methacrylate and acrylic acid into a reaction kettle equipped with a stirrer and a thermometer, stir for 30 minutes, and the stirring speed is 300 rpm.

[0030] Add the remaining raw materials and grind in a grinder for 35 minutes.

[0031] The appearance of the coating film is smooth and bright, the viscosity is 105s, the surface is dry for 45 minutes, and the hard drying is 18 hours; the flexibility is 1.5mm, the adhesion is grade 2; the water resistanc...

Embodiment 3

[0033] Weigh 80 parts of epoxy resin, 2 parts of isopropanol, 20 parts of butanol, 1 part of aluminum powder paste, 20 parts of butyl acrylate, 8 parts of methyl methacrylate, 5 parts of acrylic acid, benzene 35 parts of ethylene, 3 parts of barium sulfate, 4 parts of zinc phosphate, 6 parts of modified aluminum tripolyphosphate, 0.3 parts of sodium bicarbonate, 0.2 parts of ammonium persulfate, 7 parts of talcum powder.

[0034]Put epoxy resin, isopropanol, butanol, aluminum powder paste, butyl acrylate, methyl methacrylate and acrylic acid into a reaction kettle equipped with a stirrer and a thermometer, and stir for 10 minutes at a stirring speed of 200 rpm.

[0035] Add the remaining raw materials and grind in a grinder for 15 minutes.

[0036] The appearance of the coating film is smooth and bright, the viscosity is 110s, the surface is dry for 40 minutes, and the hard drying is 17 hours; the flexibility is 2mm, the adhesion is grade 1; the water resistance is immersed in...

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PUM

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Abstract

The invention discloses a steel antirust coating and a preparation method thereof. The preparation method comprises the following steps: weighing epoxy resin, isopropyl alcohol, butyl alcohol, aluminum paste, butyl acrylate, methyl methacrylate, acrylic acid, styrene, barium sulfate, zinc phosphate, modified aluminum tripolyphosphate, sodium bicarbonate, ammonium persulfate and talc powder; and stirring and then grinding the raw materials to obtain the steel antirust coating. A coating film has smooth and bright appearance, the viscosity is 100-120s, the surface drying time is 30-50min, and the hard drying time is 15-19h; the flexibility is 1-3mm, and the adhesion is of 1-2 levels; the water resistance enables the coating film to avoid bubbling and falling-off after being immersed in water at 30 DEG C for 3-7d, and the impact resistance is 50-70cm; and the fineness is 25-45 microns, and the pencil hardness is H.

Description

technical field [0001] The invention relates to a paint for steel surface, in particular to a steel antirust paint 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. Used for rust prevention of bridges, s...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D5/10C09D7/12C08F283/10C08F212/08C08F220/18C08F220/14C08F220/06
CPCC09D151/08C08F283/10C08K3/30C08K3/32C08K3/34C08K2003/3045C08K2003/327C08K2003/328C09D5/103C09D7/61C09D7/62C08F212/08
Inventor 朱华周友新
Owner YANCHENG INST OF TECH
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