Waterborne over-rust coating for steel and preparation method thereof

A water-based technology for rusty coatings, applied in anti-corrosion coatings, coatings, etc., can solve problems such as poor flexibility, low adhesion, and poor impact resistance, and achieve uniform, flat and bright appearance, good moisture resistance, and salt spray resistance good sex effect

Inactive Publication Date: 2016-09-07
WUXI EPIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] This application aims at the technical problems of low hardness, poor impact resistance, low adhesion, slow drying and poor flexibility of existing steel surface coatings, and provides a water-based rust coating for steel and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 100 parts of acrylic resin, 1.5 parts of gallic acid, 0.5 part of tannic acid, 2.5 parts of diethylene glycol monoethyl ether acetate, 3 parts of dioctyl phthalate, dihydrogen tripolyphosphate 6 parts of aluminum, 5 parts of zinc yellow, 1 part of sodium carboxymethyl cellulose, 1 part of ammonium citrate, 0.1 part of ethylene glycol monobutyl ether, 0.2 parts of potassium ferrocyanide, 0.3 parts of sodium tetraborate, hexadecane 20 parts of vinyl ether, 30 parts of potassium lauryl ether phosphate.

[0028] Put acrylic resin, gallic acid, tannic acid, diethylene glycol monoethyl ether acetate, dioctyl phthalate, aluminum dihydrogen tripolyphosphate and zinc yellow into a reaction kettle equipped with a stirrer and a thermometer, and heat up to 60°C, stirred for 50 minutes, and the stirring speed was 250 rpm.

[0029] Lower the temperature to 30°C, add the remaining raw materials, and grind once in a grinder with a fineness of 20 μm.

[0030] The appearance of t...

Embodiment 2

[0032]Weigh 100 parts of acrylic resin, 5.5 parts of gallic acid, 4.5 parts of tannic acid, 6.5 parts of diethylene glycol monoethyl ether acetate, 7 parts of dioctyl phthalate, dihydrogen tripolyphosphate 10 parts of aluminum, 25 parts of zinc yellow, 5 parts of sodium carboxymethyl cellulose, 20 parts of ammonium citrate, 0.5 parts of ethylene glycol monobutyl ether, 0.6 parts of potassium ferrocyanide, 0.7 parts of sodium tetraborate, hexadecane 60 parts of vinyl ether, 50 parts of potassium lauryl ether phosphate.

[0033] Put acrylic resin, gallic acid, tannic acid, diethylene glycol monoethyl ether acetate, dioctyl phthalate, aluminum dihydrogen tripolyphosphate and zinc yellow into a reaction kettle equipped with a stirrer and a thermometer, and heat up to 100°C, stirred for 90 minutes, and the stirring speed was 450 rpm.

[0034] Lower the temperature to 50°C, add the remaining raw materials, and grind twice in a grinder with a fineness of 40 μm.

[0035] The appeara...

Embodiment 3

[0037] Weigh 100 parts of acrylic resin, 2.5 parts of gallic acid, 1.5 parts of tannic acid, 3.5 parts of diethylene glycol monoethyl ether acetate, 4 parts of dioctyl phthalate, dihydrogen tripolyphosphate 7 parts of aluminum, 10 parts of zinc yellow, 2 parts of sodium carboxymethyl cellulose, 5 parts of ammonium citrate, 0.2 parts of ethylene glycol monobutyl ether, 0.3 parts of potassium ferrocyanide, 0.4 parts of sodium tetraborate, hexadecane 30 parts of vinyl ether, 35 parts of potassium lauryl ether phosphate.

[0038] Put acrylic resin, gallic acid, tannic acid, diethylene glycol monoethyl ether acetate, dioctyl phthalate, aluminum dihydrogen tripolyphosphate and zinc yellow into a reaction kettle equipped with a stirrer and a thermometer, and heat up to 60°C, stirred for 50 minutes, and the stirring speed was 250 rpm.

[0039] Lower the temperature to 30°C, add the remaining raw materials, and grind once in a grinder with a fineness of 20 μm.

[0040] The appearance...

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Abstract

The invention discloses a waterborne over-rust coating for steel and a preparation method thereof. The preparation method comprises the following steps: weighing acrylic resin, gallic acid, tannic acid, 2-(2-ethoxyethoxy)ethyl acetate, dioctyl phthalate, aluminum dihydrogen tripolyphosphate, zinc yellow, sodium carboxymethyl cellulose, ammonium citrate, ethylene glycol monobutylether, potassium hexacyanoferrate, sodium tetraborate, cetyl vinyl ether and potassium polyoxyethylene laurylether phosphate; stirring the raw materials and grinding, wherein the appearance of a costing film is uniform, flat and bright and the coating film is durable and has good resistance; carrying out surface drying for 5min to 25min and carrying out complete drying for 20h to 24h, wherein the viscosity is 40s to 60s, the flexibility is 0.5mm to 0.9mm, the adhesive force is grade 1 to grade 2 and the moisture resistance and the salt fog resistance are good; immersing into water at 30 DEG C to 40 DEG C for 5d to 9d, wherein the coating film has no bubbles and is not released and the impact resistance strength is 50cmkN/cm to 70cmkN/cm, the coating is used for protecting the surface of metal steel, the solid content is 45 percent to 55 percent and the hardness is 0.6 to 1.

Description

Technical field [0001] The invention involves coatings on the surface of steel, especially for a steel rust coating and preparation methods for steel. Background technique [0002] Anti -rust coatings can protect the surface of the metal surface from chemical or electrochemical corrosion coatings such as the atmosphere, hylidethamia.Applying rust -proof coatings on the metal surface can effectively avoid the direct invasion of various corrosive substances in the atmosphere, so that the maximum extension of the metal use period.It can be divided into two categories: physical and chemical rust -proof paint.The former relies on the proper cooperation of pigments and paint to form a dense paint film to prevent the invasion of corrosive substances, such as iron red, aluminum powder, graphite rust -proof paint, etc.;Dan, zinc yellow anti -rust paint, etc.Used for rust -proof anti -rust of metal such as bridges, ships, pipelines. [0003] Iron and steel is a must -have for steelmaking f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12C09D5/08
CPCC09D133/00C09D5/08C09D7/61C09D7/63C09D7/65C08L1/286C08K13/02C08K5/12C08K5/13C08K3/24C08K3/32
Inventor 尤为
Owner WUXI EPIC TECH
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