Anticorrosive coating and preparation method thereof

A technology of anti-corrosion coatings and polymerization inhibitors, applied in the field of coatings, can solve the problems of easy corrosion, poor surface corrosion resistance, heavy workload, etc., and achieve the effects of rapid drying, good adhesion, and good anti-corrosion performance

Inactive Publication Date: 2013-09-18
无锡市华明化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the steel pipe is rolled off the assembly line of the steel plant, its surface corrosion resistance is poor, and it is easily corroded during storage and transportation, which seriously affects its performance and service life
Once the surface is corroded, the subsequent treatment process is cumbersome and the workload is heavy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The formula of anticorrosion paint of the present invention is as follows:

[0012] 35 kg of epoxy acrylic resin, 8 kg of hydroxyethyl acrylate, 5 kg of hydroxyethyl methacrylate, 6 kg of acrylic acid, 15 kg of terpene resin, and 2.5 kg of polymerization inhibitor.

[0013] Among them, the terpene resin is a polymer compound formed by polymerization of turpentine α-pinene and β-pinene under the catalysis of Lewis acid, with a softening point of 80-130°C, an acid value ≤ 2mgKOH / g, and a saponification value ≤ 2mgKOH / g.

[0014] The polymerization inhibitor is p-methoxyphenol.

[0015] The preparation method of anticorrosion paint of the present invention is:

[0016] Mix the components in the formulation amount, raise the temperature to 40-50°C and stir for 4 hours, then cool down to room temperature to obtain the anti-corrosion coating.

Embodiment 2

[0018] The formula of anticorrosion paint of the present invention is as follows:

[0019] 30kg of epoxy acrylic resin, 5kg of hydroxyethyl acrylate, 4kg of hydroxyethyl methacrylate, 5kg of acrylic acid, 10kg of terpene resin, and 2kg of polymerization inhibitor.

[0020] Among them, the terpene resin is a polymer compound formed by polymerization of turpentine α-pinene and β-pinene under the catalysis of Lewis acid, with a softening point of 80-130°C, an acid value ≤ 2mgKOH / g, and a saponification value ≤ 2mgKOH / g.

[0021] The polymerization inhibitor is p-methoxyphenol.

[0022] The preparation method of anticorrosion paint of the present invention is:

[0023] Mix the components in the formulation amount, raise the temperature to 40-50°C and stir for 4 hours, then cool down to room temperature to obtain the anti-corrosion coating.

Embodiment 3

[0025] The formula of anticorrosion paint of the present invention is as follows:

[0026] 40kg of epoxy acrylic resin, 10kg of hydroxyethyl acrylate, 6kg of hydroxyethyl methacrylate, 8kg of acrylic acid, 20kg of terpene resin, and 3kg of polymerization inhibitor.

[0027] Among them, the terpene resin is a polymer compound formed by polymerization of turpentine α-pinene and β-pinene under the catalysis of Lewis acid, with a softening point of 80-130°C, an acid value ≤ 2mgKOH / g, and a saponification value ≤ 2mgKOH / g.

[0028] The polymerization inhibitor is 2-tert-butyl hydroquinone.

[0029] The preparation method of anticorrosion paint of the present invention is:

[0030] Mix the components in the formulation amount, raise the temperature to 40-50°C and stir for 4 hours, then cool down to room temperature to obtain the anti-corrosion coating.

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Abstract

The invention provides an anticorrosive coating used for an external surface of a steel pipe. The anticorrosive coating is high in adhesive force and outstanding in resistance to weather and corrosion. The anticorrosive coating is prepared from the following components in parts by mass: 30 to 40 parts of epoxy acrylate, 5 to 10 parts of hydroxyethyl acrylate, 4 to 6 parts of hydroxyethyl methylacrylate, 5 to 8 parts of acrylic acid, 10 to 20 parts of terpene resin, and 2 to 3 parts of polymerization inhibitor. The anticorrosive coating is high in corrosion resistance, fast to dry and high in adhesive force and can provide excellent corrosion protection for the steel pipe under various severe various conditions.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an anti-corrosion coating and a preparation method thereof. Background technique [0002] After the steel pipe is rolled off the assembly line of the steel plant, its surface corrosion resistance is poor, and it is easily corroded during storage and transportation, which seriously affects its performance and service life. Once its surface is corroded, its subsequent treatment process is cumbersome and the workload is heavy. At present, processes such as alloy plating and phosphating on the surface of the steel pipe are used in production to treat the light pipe to improve its anti-corrosion performance. Compared with other surface anti-corrosion treatment processes, the process of coating anti-corrosion coatings to form a coating protection process has advantages that other materials cannot match, such as simple operation, excellent performance, and high economic be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08
Inventor 陈国良
Owner 无锡市华明化工有限公司
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