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A heavy-duty anti-corrosion coating material

A coating material and heavy-duty anti-corrosion technology, applied in the direction of anti-corrosion coatings, coatings, polyester coatings, etc., can solve the problems of unsatisfactory adhesion and toughness of coating materials, inability to use steel structures for anti-corrosion repair, and difficulty in completing anti-corrosion Requirements and other issues, to achieve good social and economic benefits, overcome technical difficulties in anti-corrosion, and achieve the effect of thick coating

Active Publication Date: 2017-06-16
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of protective sleeve has high corrosion resistance, high plasticity and high weldability, and will not cause corrosion resistance and stress corrosion cracking. It has high stability in preventing the growth of microorganisms, but it is expensive and has fatal flaws: Once seawater seeps in, the corrosion becomes more serious
However, although these coating materials achieve environmental protection and long-term performance, the cost is too high when they are applied to the splash zone
At the same time, the material is too harsh on the construction requirements, and cannot be used for the anti-corrosion repair of the steel structure in the ocean splash area; It is found that the adhesion and toughness of the coating material are unsatisfactory, and it is easy to peel off after long-term washing in the ocean splash zone after coating, so it is difficult to meet the anti-corrosion requirements, so further improvement is needed

Method used

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  • A heavy-duty anti-corrosion coating material
  • A heavy-duty anti-corrosion coating material
  • A heavy-duty anti-corrosion coating material

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A heavy-duty anti-corrosion coating material for steel structures in the ocean splash zone, including a main agent system and a curing agent system, in parts by weight:

[0041] (1) each component in the main agent system is: film-forming resin: bisphenol A type epoxy resin 45; Toughener: polycaprolactone 14; Rust stabilizer: zinc phosphate 8; rust conversion agent: diphenyl chromate 0.4; sub-nanometer flake filler: ceramic powder with a fineness of less than 1 micron 15; inorganic cementitious material: Portland cement: 35; adhesion enhancer: epoxy phosphate 4;

[0042] (II) The components in the curing agent system are: curing agent: cashew nut shell oil modified phenalkamine 40; high wear-resistant filler: quartz powder 25; antirust pigment: mica iron oxide 25; penetrating agent fatty alcohol polyoxyethylene Ether 2; Organic Chelating Agent: Organic Phosphite 3.

[0043] Wherein said polycaprolactone is graphene modified polycaprolactone, and its modification metho...

Embodiment 2

[0047] A heavy-duty anti-corrosion coating material for steel structures in the ocean splash zone, including a main agent system and a curing agent system, in parts by weight:

[0048] (1) Each component in the main agent system is: film-forming resin: bisphenol A type epoxy resin 43; Modified toughening agent: polycaprolactone 14; Defoamer: 0571.5 of BYK company; Leveling agent Peak’s 37771.5; rust stabilizer: zinc phosphate 6, zinc chromate 2; rust conversion agent: diphenyl chromate 0.8; sub-nano flaky filler: talcum powder 15 with a fineness of 0.7 microns; inorganic cementitious material: Aluminate cement 37; adhesion enhancer: 1211 adhesion enhancer 3;

[0049] (II) The components in the curing agent system are: curing agent: cashew nut shell oil modified phenalkamine 45; high wear-resistant filler: quartz powder 25; antirust pigment: iron phosphorus powder 25; penetrating agent: fatty alcohol polyoxygen Vinyl ether 2.5; organic chelating agent: organic phosphite 2.0. ...

Embodiment 3

[0054] A heavy-duty anti-corrosion coating material for steel structures in the ocean splash zone, including a main agent system and a curing agent system, in parts by weight:

[0055] (1) Each component in the main agent system is: film-forming resin: bisphenol A type epoxy resin 35; Modified toughening agent: polycaprolactone 12; Defoamer: 0571.3 of BYK company; Leveling agent : BYK 37771.2; Rust stabilizer: Zinc lattice 7; Rust conversion agent: Diphenyl chromate 0.6; Sub-nano flaky filler: Ceramic powder 12 with a fineness of less than 1 micron; Inorganic cementitious material: Sulfur aluminum Salt cement 30; adhesion enhancer: epoxy phosphate 4;

[0056] (II) The components in the curing agent system are: curing agent: Cardolite XN200735; high wear-resistant filler: quartz powder 25; antirust pigment: mica iron oxide 16, iron phosphorus powder 7; penetrating agent: fatty alcohol Polyoxyethylene ether: 1.5; organic chelating agent: organic phosphite 2.5.

[0057] Wherein...

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Abstract

The invention relates to a heavy-duty anti-corrosion coating material, which does not need a solvent and includes a main agent system and a curing agent system; wherein the toughening agent in the main agent system is graphene-modified polycaprolactone, and the anti-corrosion coating material It can be applied directly in an anhydrous or aqueous environment by hand coating, spreading and brushing. The use of this material and its application method achieves zero solvent content, and at the same time realizes the long-term anti-corrosion effect and thick coating, effectively overcomes the technical difficulties of steel structure anti-corrosion in the harsh environment of the splash zone, and greatly improves the construction of marine engineering anti-corrosion And protection ability, promote the technical progress of my country's coatings field, and greatly reduce the construction cost, save expensive maintenance costs and precious fresh water resources for the country, and achieve good social and economic benefits.

Description

technical field [0001] The invention relates to a heavy-duty anti-corrosion technology, in particular to a heavy-duty anti-corrosion coating material for steel structures in ocean splash zones. Background technique [0002] According to statistics, the annual loss caused by corrosion in the world accounts for 2%-4% of the gross national economic product, which is greater than the sum of losses caused by natural disasters such as fire, wind, flood and earthquake. The country attaches great importance to marine corrosion and protection research. my country is a large ocean country, with a coastline of more than 18,000 kilometers and a sea area of ​​more than 3 million kilometers under its jurisdiction 2 , Marine corrosion and protection is one of the key issues that need to be seriously resolved in my country's economic development. In terms of anti-corrosion of marine steel structures, the corrosion environment is different, and the anti-corrosion measures adopted are diffe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D167/04C09D7/12C09D5/08
Inventor 李少香薛守伟李光俊黄永江仲华
Owner QINGDAO UNIV OF SCI & TECH
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