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Corrosion-resisting coating and preparation method thereof

A corrosion-resistant coating technology, applied in the direction of anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of outdoor materials such as large damage, high protection cost, easy cracking or peeling, etc., to achieve good corrosion resistance, use Long life, good protection effect

Inactive Publication Date: 2019-02-12
于萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Acid rain has great damage to outdoor materials. In order to protect outdoor materials, it is necessary to spray paint on its surface. The existing coatings have poor corrosion resistance and are easily cracked or peeled off after being eroded by acid rain, resulting in insufficient protection for outdoor materials. , it is necessary to refill the spray paint every short period of time, resulting in waste of paint and high protection costs

Method used

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  • Corrosion-resisting coating and preparation method thereof

Examples

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Embodiment 1

[0021] A corrosion-resistant coating, comprising the following raw materials in parts by weight: 60 parts of water-based polyurethane resin, 30 parts of acrylic emulsion, 20 parts of propylene glycol butyl ether, 12 parts of dioctyl phthalate, 6 parts of polytetrafluoroethylene fiber, phosphoric acid 3 parts of zinc, 3 parts of calcium carbonate, 2 parts of graphite powder, 3 parts of silicon dioxide, 5 parts of sodium fluorosilicate, 3 parts of 4-propenyloxy-2-hydroxybenzophenone, 2 parts of silane coupling agent, 10 parts of sodium carboxymethyl cellulose, 30 parts of deionized water.

[0022] Wherein, the acrylic emulsion is composed of pure acrylic emulsion and silicone acrylic emulsion in a weight ratio of 1:2.

[0023] Wherein, the polytetrafluoroethylene fiber has a length of 0.5 mm and a diameter of 1 μm.

[0024] Wherein, the silane coupling agent is KH-560.

[0025] In the present embodiment, the preparation method of the corrosion-resistant coating, the steps are ...

Embodiment 2

[0030] A corrosion-resistant coating, comprising the following raw materials in parts by weight: 65 parts of water-based polyurethane resin, 35 parts of acrylic emulsion, 22 parts of propylene glycol butyl ether, 14 parts of dioctyl phthalate, 7 parts of polytetrafluoroethylene fiber, phosphoric acid 4 parts of zinc, 4 parts of calcium carbonate, 3.5 parts of graphite powder, 5 parts of silicon dioxide, 8 parts of sodium fluorosilicate, 5 parts of 4-propenyloxy-2-hydroxybenzophenone, 4 parts of silane coupling agent, 18 parts of sodium carboxymethyl cellulose, 45 parts of deionized water.

[0031] Wherein, the acrylic emulsion is composed of pure acrylic emulsion and silicone acrylic emulsion in a weight ratio of 1:2.

[0032] Wherein, the polytetrafluoroethylene fiber has a length of 0.8 mm and a diameter of 1.5 μm.

[0033] Wherein, the silane coupling agent is KH-560.

[0034] In the present embodiment, the preparation method of the corrosion-resistant coating, the steps ...

Embodiment 3

[0039] A corrosion-resistant coating, comprising the following raw materials in parts by weight: 70 parts of water-based polyurethane resin, 40 parts of acrylic emulsion, 25 parts of propylene glycol butyl ether, 16 parts of dioctyl phthalate, 8 parts of polytetrafluoroethylene fiber, phosphoric acid 4.5 parts of zinc, 4.5 parts of calcium carbonate, 3 parts of graphite powder, 4.5 parts of silicon dioxide, 7 parts of sodium fluorosilicate, 4.5 parts of 4-propenyloxy-2-hydroxybenzophenone, 3.5 parts of silane coupling agent, 15 parts of sodium carboxymethyl cellulose, 40 parts of deionized water.

[0040] Wherein, the acrylic emulsion is composed of pure acrylic emulsion and silicone acrylic emulsion in a weight ratio of 1:2.

[0041] Wherein, the polytetrafluoroethylene fiber has a length of 0.8 mm and a diameter of 1.5 μm.

[0042] Wherein, the silane coupling agent is KH-560.

[0043] In the present embodiment, the preparation method of the corrosion-resistant coating, th...

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Abstract

The invention relates to the technical field of coatings and discloses a corrosion-resisting coating. The corrosion-resisting coating is prepared from the following raw materials in parts by weight: 60 to 80 parts of waterborne polyurethane resin, 30 to 50 parts of acrylic emulsion, 20 to 30 parts of propylene glycol butyl ether, 12 to 20 parts of dioctyl phthalate, 6 to 10 parts of polytetrafluoroethylene fibers, 3 to 6 parts of zinc phosphate, 3 to 6 parts of calcium carbonate, 2 to 4 parts of graphite powder, 3 to 6 parts of silica, 5 to 10 parts of sodium fluosilicate, 3 to 6 parts of 4-allyloxy-2-hydroxybenzophenone, 2 to 5 parts of a silane coupling agent, 10 to 20 parts of sodium carboxymethylcellulose and 30 to 50 parts of deionized water. The invention also discloses a preparationmethod of the corrosion-resisting coating. The coating prepared by the invention, under the cooperation of various raw materials, has good corrosion resistance and can still keep good performance under long-time erosion of acid rain.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a corrosion-resistant coating and a preparation method thereof. Background technique [0002] Acid rain refers to rain, snow or other forms of precipitation with a pH less than 5.6. In the process of forming and falling, rain and snow absorb and dissolve sulfur dioxide, nitrogen oxides and other substances in the air, forming acidic precipitation with a pH lower than 5.6. Acid rain is mainly caused by man-made discharge of a large amount of acidic substances into the atmosphere. The acid rain in China is mainly caused by the burning of coal with high sulfur content, mostly sulfuric acid rain and less nitric acid rain. In addition, the exhaust gas emitted by various motor vehicles is also an important cause of acid rain. Some areas in my country have become acid rain-prone areas, and the scope and degree of acid rain pollution have aroused people's close attention. [0003] Ac...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D133/04C09D127/18C09D101/28C09D5/08C09D7/61C09D7/63
CPCC08K2003/265C08L2205/035C08L2205/16C09D5/08C09D7/61C09D7/63C09D175/04C08L33/04C08L43/04C08L27/18C08L1/286C08K13/02C08K5/12C08K3/26C08K3/36
Inventor 于萍
Owner 于萍
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