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Multifunctional heavy anti-corrosion coating as well as preparation method and application thereof

A heavy-duty and multi-functional technology, applied in anti-corrosion coatings, coatings, anti-fouling/underwater coatings, etc., can solve problems that need to be further improved, to reduce marine biofouling, improve compatibility, and extend protection life Effect

Active Publication Date: 2022-03-01
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned coatings only rely on physical isolation for corrosion protection, and their protective effect still needs to be further improved. In addition, the anti-corrosion coating should also have good mechanical properties, seawater erosion resistance, and biofouling resistance. Therefore, it is necessary to develop a multifunctional Heavy-duty anti-corrosion coating is an urgent need for anti-corrosion of marine engineering equipment

Method used

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  • Multifunctional heavy anti-corrosion coating as well as preparation method and application thereof
  • Multifunctional heavy anti-corrosion coating as well as preparation method and application thereof
  • Multifunctional heavy anti-corrosion coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A multi-functional heavy-duty anti-corrosion coating, the multi-functional heavy-duty anti-corrosion coating is composed of two components A and B, in parts by weight: wherein component A is calculated by weight percentage: 60% of water-based epoxy emulsion, MgCr 2 o 4 -TiO 2 Ceramic powder 6.8%, Disperbykl03 0.8%, silicone defoamer 0.8%, polyether modified polydimethylsiloxane 0.5%, DP-10 adhesion promoter 0.3%, bentonite 0.8% and deionized water 30% .

[0035] Component B is calculated by weight percentage: 40% of seashell powder composite zinc-aluminum flake powder, 35% of polyurethane curing agent, and 25% of n-butanol.

[0036] Such as figure 1 As shown, the interior of the seashell powder composite zinc-aluminum flake powder is zinc-aluminum flakes, and the surface is coated with seashell powder; the thickness of the seashell powder composite zinc-aluminum flake powder is 0.1-0.3 μm, and the sheet diameter is 15-35 μm.

[0037] MgCr 2 o 4 -TiO 2 The particl...

Embodiment 2

[0047] A multi-functional heavy-duty anti-corrosion coating, the multi-functional heavy-duty anti-corrosion coating is composed of A and B two components, in parts by weight: wherein component A is calculated in weight percentage: 70% of water-based epoxy emulsion, MgCr 2 o 4 -TiO 2 Ceramic powder 6.8%, Disperbykl03 0.9%, silicone defoamer 1.2%, polyether modified polydimethylsiloxane 0.8%, DP-10 adhesion promoter 0.4%, bentonite 1.1%, deionized water 18.8% .

[0048] Component B is calculated by weight percentage: 55% of sea shell powder composite zinc-aluminum flakes, 40% of polyurethane curing agent, and 5% of n-butanol.

[0049] The MgCr 2 o 4 -TiO 2 The particle size of the ceramic powder is 0.8 μm.

[0050] A method for preparing a multifunctional heavy-duty anti-corrosion coating, comprising the following steps:

[0051] Step 1, preparation of seashell powder composite zinc-aluminum flake powder: spherical aluminum-zinc powder, seashell powder, and compound grind...

Embodiment 3

[0057] A multi-functional heavy-duty anti-corrosion coating, the multi-functional heavy-duty anti-corrosion coating is composed of two components A and B, in parts by weight: wherein component A is calculated by weight percentage: 65% of water-based epoxy emulsion, MgCr 2 o 4 -TiO 2 Ceramic powder 6.7%, Disperbykl03 0.7%, silicone defoamer 1.1%, polyether modified polydimethylsiloxane 0.7%, DP-10 adhesion promoter 0.4%, bentonite 0.9%, deionized water 24.5% .

[0058] Component B is calculated by weight percentage: 48% of sea shell powder composite zinc-aluminum flakes, 38% of polyurethane curing agent, and 14% of n-butanol.

[0059] A method for preparing a multifunctional heavy-duty anti-corrosion coating, comprising the following steps:

[0060] Step 1, preparation of seashell powder composite zinc-aluminum flake powder: spherical aluminum-zinc powder, seashell powder, and compound grinding aid are proportioned according to weight percentage 88:10:2, ball milled in a bal...

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Abstract

The invention discloses a multifunctional heavy anti-corrosion coating which consists of a component A and a component B. The component A is prepared from the following components in percentage by weight: 60 to 70 percent of waterborne epoxy emulsion, 5.5 to 8.3 percent of MgCr2O4-TiO2 ceramic powder, 0.6 to 1.0 percent of polymer nonionic dispersant, 0.9 to 1.2 percent of organic silicon defoaming agent, 0.5 to 0.8 percent of polyether modified polydimethylsiloxane, 0.3 to 0.4 percent of DP-10 adhesion promoter, 0.8 to 1.1 percent of bentonite and 15 to 30 percent of deionized water; and the component B comprises the following components in percentage by weight: 40-55% of seashell powder composite zinc-aluminum flake powder, 35-40% of a polyurethane curing agent and 5-25% of n-butyl alcohol. The invention further discloses a preparation method and application of the multifunctional heavy anti-corrosion coating. Good mechanical properties of the coating are guaranteed, and seawater erosion and abrasion are effectively resisted.

Description

technical field [0001] The invention relates to a multifunctional heavy-duty anti-corrosion coating, a preparation method and application thereof, and belongs to the technical field of coating preparation. Background technique [0002] With the gradual increase in the development and utilization of marine resources, the demand for section steel for ships and marine engineering equipment is increasing, such as bulb flat steel, H steel, etc., but at the same time higher requirements are put forward for the performance of marine engineering section steel, especially It is resistant to seawater corrosion. At present, in addition to alloying to enhance the corrosion resistance of marine steel, the use of coating protection is an effective and economical way to improve its seawater corrosion resistance. [0003] Chinese Patent No. 201410410976.6 published a document titled Preparation Method of Seawater Corrosion-Resistant Metal Coating, using titanium, nickel, chromium, copper, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/08C09D5/10C09D5/16
CPCC09D175/04C09D5/08C09D5/103C09D5/106C09D5/1618C08K2003/2241C08K2003/265C08K2003/0893C08K2003/0812C08K3/22C08K9/10C08K3/26C08K3/08C08K7/00
Inventor 巴志新陈贤陶学伟郏永强王章忠张保森
Owner NANJING INST OF TECH
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