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High-corrosion-resistant and wear-resistant coating and preparation method thereof

A wear-resistant coating and corrosion-resistant technology, applied in coatings, anti-corrosion coatings, polyether coatings, etc., can solve the problem of neglecting the combination of different base coatings and surface coatings, shortening the coating time, and improving corrosion resistance. Good friction and wear resistance

Active Publication Date: 2015-06-03
广州穗剑实验室科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some anti-corrosion and wear-resistant coatings are also disclosed. However, the prior art generally only discloses a kind of base coating or surface coating of the coating, and often ignores the combination of different base coatings and surface coatings.

Method used

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  • High-corrosion-resistant and wear-resistant coating and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, high corrosion-resistant and wear-resistant coating of the present invention and preparation method thereof

[0029] Basic coating formula: polyether ketone 55%, ethylene-tetrafluoroethylene copolymer 25%, phenolic modified epoxy resin 14%, methylphenyl silicone resin 4.7%, polydimethylsiloxane 0.2%, octyl Phenol polyoxyethylene ether 1.0% and polyoxypropylene glyceryl ether 0.1%.

[0030] Surface coating formula: polyether ketone 12%, ethylene-tetrafluoroethylene copolymer 81%, nano-titanium dioxide 5.0%, octylphenol polyoxyethylene ether 1.0%, polyacrylate 0.2%, polyoxypropylene glyceryl ether 0.1% and Pigment 0.7%.

[0031] Preparation:

[0032] Preparation of base coating: pre-mix each component in a high-speed mixer, and then transport to a melt extrusion mixer. Each component is uniformly dispersed at 100°C and partially melted and mixed, then pressed into tablets, and cooled to 0°C Crushed, and then sieved after air classification and grinding...

Embodiment 2

[0035] Embodiment 2, high corrosion-resistant and wear-resistant coating of the present invention and preparation method thereof

[0036] Basic coating formula: polyether ketone 50%, ethylene-tetrafluoroethylene copolymer 20%, alicyclic epoxy resin 20%, methyl silicone resin 8.0%, polyacrylate 0.4%, octylphenol polyoxyethylene ether 1.2 % and polyoxypropylene glyceryl ether 0.4%.

[0037] Surface coating formula: polyether ketone 8%, ethylene-tetrafluoroethylene copolymer 85%, nano-titanium dioxide 4.0%, octylphenol polyoxyethylene ether 1.4%, polydimethylsiloxane 0.4%, polyoxypropylene glycerin Ether 0.2% and Pigment 1.0%.

[0038] Preparation:

[0039] Preparation of base coating: pre-mix each component in a high-speed mixer, and then transport it to a melt extrusion mixer, so that each component is uniformly dispersed at 120°C and partially melted and mixed, then pressed into tablets, and cooled to 0°C Finally, it is crushed, then sieved after air classification, gri...

Embodiment 3

[0042] Embodiment 3, high corrosion-resistant and wear-resistant coating of the present invention and preparation method thereof

[0043] Basic coating formula: polyether ketone 60%, ethylene-chlorotrifluoroethylene copolymer 23%, phenolic modified epoxy resin 10%, methylphenyl silicone resin 6.0%, polydimethylsiloxane 0.2%, octyl Base phenol polyoxyethylene ether 0.7% and polyoxypropylene glyceryl ether 0.1%.

[0044] Surface coating formula: polyether ketone 16%, ethylene-chlorotrifluoroethylene copolymer 75%, nano-titanium dioxide 7.0%, octylphenol polyoxyethylene ether 1.0%, polyacrylate 0.1%, polyoxypropylene glyceryl ether 0.4% and pigment 0.5%.

[0045] Preparation:

[0046] Preparation of the base coating: pre-mix the components in a high-speed mixer, and then transport them to the melt extrusion mixer, so that the components are uniformly dispersed at 90°C and partially melted and mixed, then pressed into tablets, and cooled to 0°C After crushing, air classific...

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Abstract

The invention discloses a high-corrosion-resistant and wear-resistant coating and a preparation method thereof. The coating comprises a base layer and a surface layer, wherein a base layer paint coats a base material to form the base layer, and a surface layer paint coats the base layer to form the surface layer; the base layer paint comprises the following components in percentage by weight: 50-60% of polyether ketone, 20-30% of fluororesin, 10-20% of epoxy resin, 2.0-8.0% of organic silicon resin, 0.1-0.4% of a leveling agent, 0.5-1.5% of a wetting agent and 0.1-0.4% of a defoaming agent; and the surface layer paint comprises the following components in percentage by weight: 8-16% of polyether ketone, 75-85% of fluororesin, 3.0-7.0% of nano-titanium dioxide, 0.5-1.5% of a wetting agent, 0.1-0.4% of a leveling agent, 0.1-0.4% of a defoaming agent and 0.3-1.0% of a pigment. The preparation method comprises the following steps: uniformly spraying the base layer paint by using a corona discharge type electrostatic powder spray gun, then baking under the condition that the baking temperature is 240-330 DEG C, so as to form the base layer, directly spraying the surface layer paint without cooling after the base layer is formed, spraying the surface layer paint, and baking to form the surface layer so as to ensure that the high-corrosion-resistant and wear-resistant coating disclosed by the invention is prepared. According to the high-corrosion-resistant and wear-resistant coating disclosed by the invention, the base material and the base layer are closely combined, and the base layer and the surface layer are also closely combined, so that the high-corrosion-resistant and wear-resistant coating has the advantages of high adhesive force, high corrosion resistance, abrasion resistance and impact resistance.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a highly corrosion-resistant and wear-resistant coating and a preparation method thereof. Background technique [0002] With the continuous development of industrial technology and the use of metal materials more and more widely, the corrosion of metal and its components has spread to all fields of the national economy, causing huge losses to human society. In order to reduce the loss of corrosion, people have taken many protective measures, but so far the most common, economical and practical protective measures are paint protection. Among various anti-corrosion technologies, the anti-corrosion technology of paint is the most widely used. It is widely used due to the characteristics of simple construction, economical application, and not being restricted by equipment area and shape. In laboratories or chemical plants, various high-purity reagents are frequently use...

Claims

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Application Information

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IPC IPC(8): C09D171/10C09D127/12C09D163/00C09D5/08C09D7/12
CPCC08K2201/011C08L2205/02C08L2205/025C08L2205/035C09D5/08C09D7/61C09D7/65C09D127/18C09D171/12C08L27/18C08L63/00C08L83/04C08L71/02C08L71/123C08L33/08C08K2003/2241
Inventor 易鸿程永斌杨周
Owner 广州穗剑实验室科技有限公司
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