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Hydrophobic and oleophobic coating with super-long durable corrosion resistance and low surface energy and preparation process of hydrophobic and oleophobic coating

A low surface energy, durable technology, used in anti-corrosion coatings, coatings, epoxy coatings, etc., can solve problems such as long-term anti-corrosion difficulties, and achieve good results.

Inactive Publication Date: 2016-01-20
PENGLAI WEIYANG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so, it is still relatively difficult to achieve long-term anticorrosion by the above-mentioned single means

Method used

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  • Hydrophobic and oleophobic coating with super-long durable corrosion resistance and low surface energy and preparation process of hydrophobic and oleophobic coating
  • Hydrophobic and oleophobic coating with super-long durable corrosion resistance and low surface energy and preparation process of hydrophobic and oleophobic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The preparation process of the ultra-long and durable anti-corrosion low surface energy hydrophobic and oil-repellent coating of this embodiment includes the following processing steps:

[0053] 1) Preparation of epoxy anti-corrosion primer

[0054] Add bisphenol A epoxy resin E20 and organic mixed solvent into the dispersion tank, fully disperse for 10 minutes, add additives, anti-corrosion agents, pigments and fillers in turn, stir and disperse for 10 minutes, then ball mill for 6 hours, check the viscosity and fineness Obtain the class A component of the epoxy anticorrosion primer.

[0055] In this example, the proportion of component A of the epoxy anticorrosion primer coating is as follows:

[0056] Bisphenol A epoxy resin E20: 32 grams

[0057] Pigments and fillers: 20 grams of iron oxide red, 5 grams of mica iron oxide, 1 gram of fumed silica, 2.5 grams of organic bentonite

[0058] Anticorrosion agent: 1.6 grams of polyaniline, 6 grams of aluminum tripolyphos...

Embodiment 2

[0068] 1) Preparation of epoxy anti-corrosion primer

[0069] The preparation process of component A of the epoxy anticorrosion primer is the same as in Example 1 in this example.

[0070] In this example, the proportion of component A of the epoxy anticorrosion primer coating is as follows:

[0071] Bisphenol A epoxy resin E20: 32 grams

[0072] Pigments and fillers: 20 grams of iron oxide red, 5 grams of mica iron oxide, 1 gram of fumed silica, 2.5 grams of organic bentonite

[0073] Anticorrosion agent: 1.6 grams of cetylpyridinium bromide, 6 grams of aluminum tripolyphosphate, 3 grams of aluminum silver paste

[0074] Additives: BYK1630.8g, BYK4100.4g, BYK0520.4g, BYK3000.4g

[0075] Mixed solvent: xylene 12 grams, n-butanol 15 grams

[0076] Take component A of epoxy anti-corrosion primer and polyamide curing agent in a mass ratio of 8:1, compound and mix evenly, spray and pretreat the surface of carbon steel.

[0077] 2) Preparation of fluorine-modified acrylate top...

Embodiment 3

[0082] 1) The preparation process of component A of the epoxy anticorrosion primer in this example is the same as that in Example 1.

[0083] In this example, the proportion of component A of the epoxy anticorrosion primer coating is as follows:

[0084] Bisphenol A epoxy resin E44: 28 grams

[0085] Pigments and fillers: 20 grams of iron oxide red, 5 grams of mica iron oxide, 1 gram of fumed silica, 2.5 grams of organic bentonite

[0086] Anticorrosion agent: 1.6 grams of cetylpyridinium bromide, 6 grams of aluminum tripolyphosphate, 4 grams of aluminum silver paste

[0087] Additives: BYK1630.8g, BYK4100.4g, BYK0520.4g, BYK3000.4g

[0088] Mixed solvent: xylene 15 grams, n-butanol 15 grams

[0089] 2) Preparation of fluorine-modified acrylate topcoat

[0090] Preparation of fluorine-modified acrylic resin

[0091] Add 30 grams of xylene and N,N-dimethylformamide mixed organic solvent with a mass ratio of 2:1 into the reaction flask, add 25 grams of methyl methacrylate, ...

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Abstract

The invention relates to a hydrophobic and oleophobic coating with super-long durable corrosion resistance and low surface energy used in industries of petroleum, chemical engineering, ocean and the like and a preparation process of the coating, belonging to the field of metal surface anticorrosive coatings. The hydrophobic and oleophobic coating comprises a bottom layer and a surface layer, wherein the bottom layer is an epoxy anticorrosive undercoat consisting of the following raw materials in percentage by weight: 20%-50% of epoxy resin, 5%-15% of an anticorrosive agent, 15%-35% of color fillers, 1%-5% of an aid, 10%-25% of an organic solvent and 10%-30% of a curing agent; the surface layer is a fluorine-modified acrylate finishing coat consisting of the following raw materials in percentage by weight: 40%-70% of fluorine-modified acrylic resin, 15%-20% of the color fillers, 10%-25% of the organic solvent and 10%-20% of the curing agent. The hydrophobic and oleophobic coating has a super-long durable anticorrosive effect.

Description

technical field [0001] The invention relates to a coating with an ultra-long lasting anti-corrosion effect used in industries such as petroleum, chemical industry and ocean and a preparation process of the coating, which belongs to the field of metal surface anti-corrosion coatings. Background technique [0002] Metal corrosion pervades all sectors of the national economy and the people's livelihood, bringing huge economic losses to the national economy. According to the statistics of industrially developed countries, the economic loss caused by corrosion accounts for about 2-4% of the gross national product every year. The direct loss of corrosion in the United States in 2001 was 3.1% of the gross national product, or about 276 billion US dollars. In my country's typical industries and enterprises in energy, transportation, construction, machinery, chemicals, infrastructure, water conservancy and military facilities, the annual loss due to corrosion can reach more than 500 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/02C09D133/12C09D5/10C09D7/12
Inventor 曲杰吴杨周峰裴小维孟声宋雪曙
Owner PENGLAI WEIYANG NEW MATERIALS
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