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Epoxy resin anti-rust paint with rust for steel and preparation method thereof

A technology of epoxy resin tape and anti-rust coating, which is applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve the problems of poor impact resistance, slow drying, poor flexibility, etc., and achieve the effect of smooth and bright appearance

Inactive Publication Date: 2016-08-31
WUXI EPIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 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-proof coating using epoxy resin for steel and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take by weight 100 parts of epoxy resin, 4 parts of polyvinyl butyral, 0.8 part of tannic acid, 1 part of zinc dihydrogen phosphate, 6 parts of dibutyl phthalate, 40 parts of ethanol, 2 parts of n-trichloroethane, 3 parts of sodium dodecylsulfonate, 5 parts of potassium dichromate, 30 parts of trichloroethane, 8 parts of tung oil, 0.5 parts of glycerin rosin ester, 1 part of soybean oil, 10 parts of polystyrene .

[0026] Put epoxy resin, polyvinyl butyral, tannic acid, zinc dihydrogen phosphate, dibutyl phthalate, ethanol and n-trichloroethane into a reaction kettle equipped with a stirrer and a thermometer, and heat up to 80 ℃, stirred for 30 min, and the stirring speed was 400 rpm.

[0027] Lower the temperature to 40°C, add the remaining raw materials, and grind once in a grinder with a fineness of 20 μm.

[0028] The appearance of the coating film is smooth and bright, the surface is dry for 25 minutes, and the hard work is 10 hours; the flexibility is 130mm, the...

Embodiment 2

[0030] Take by weight 100 parts of epoxy resin, 8 parts of polyvinyl butyral, 1.2 parts of tannic acid, 1.4 parts of zinc dihydrogen phosphate, 10 parts of dibutyl phthalate, 80 parts of ethanol, 6 parts of n-trichloroethane, 7 parts of sodium dodecylsulfonate, 9 parts of potassium dichromate, 50 parts of trichloroethane, 12 parts of tung oil, 4.5 parts of glycerin rosin ester, 5 parts of soybean oil, 30 parts of polystyrene .

[0031] Put epoxy resin, polyvinyl butyral, tannic acid, zinc dihydrogen phosphate, dibutyl phthalate, ethanol and n-trichloroethane into a reaction kettle equipped with a stirrer and a thermometer, and heat up to 120 ℃, stirred for 50min, and the stirring speed was 400-600 rpm.

[0032]Lower the temperature to 60°C, add the remaining raw materials, and grind twice in a grinder with a fineness of 60 μm.

[0033] The appearance of the coating film is smooth and bright, the surface is dry for 20 minutes, and the hard work is 9 hours; the flexibility is ...

Embodiment 3

[0035] Take by weight 100 parts of epoxy resin, 5 parts of polyvinyl butyral, 0.9 part of tannic acid, 1.1 parts of zinc dihydrogen phosphate, 7 parts of dibutyl phthalate, 50 parts of ethanol, 3 parts of n-trichloroethane, 4 parts of sodium dodecylsulfonate, 6 parts of potassium dichromate, 35 parts of trichloroethane, 9 parts of tung oil, 1.5 parts of glycerin rosin ester, 2 parts of soybean oil, 15 parts of polystyrene .

[0036] Put epoxy resin, polyvinyl butyral, tannic acid, zinc dihydrogen phosphate, dibutyl phthalate, ethanol and n-trichloroethane into a reaction kettle equipped with a stirrer and a thermometer, and heat up to 80 ℃, stirred for 30 min, and the stirring speed was 400 rpm.

[0037] Lower the temperature to 40°C, add the remaining raw materials, and grind once in a grinder with a fineness of 20 μm.

[0038] The appearance of the coating film is smooth and bright, the surface is dry for 15 minutes, and the hard work is 8 hours; the flexibility is 150mm, ...

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Abstract

The invention discloses an epoxy resin anti-rust paint with rust for steel and a preparation method thereof. The preparation method includes the steps that epoxy resin, polyvinyl butyral, tannin, zinc dihydrogen phosphate, dibutyl phthalate, ethanol, n-trichloroethane, sodium dodecyl sulfate, potassium dichromate, trichloroethane, China wood oil, ester gum, soybean oil and polystyrene are weighed, stirred and then ground, and the paint can be obtained. A paint film is smooth and bright in appearance, surface dryness can be achieved within 5-25 min, and solid dryness can be achieved within 6-10 h; the flexibility is 130-170 mm, and the adhesive force reaches the 1-2 level; the paint is free of bubbling or peeling when soaked in 25-35 DEG C water for 5-9 d, the impact strength is 600-800 N / cm, the hardness is 5-6 H, and the paint is used for protecting the surface of metal or steel and can be widely produced and constantly replace existing materials.

Description

technical field [0001] The invention relates to a paint for iron and steel surfaces, in particular to an epoxy resin anti-rust paint with rust 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 from the atmosphere, sea dibutyl phthalate, 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, zinc yellow antirust pai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC09D163/00C08L2205/025C08L2205/035C09D5/08C09D7/61C09D7/63C09D7/65C08L29/14C08L91/00C08L25/06C08K13/02C08K5/12C08K5/42C08K3/32C08K3/24
Inventor 尤为
Owner WUXI EPIC TECH
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