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Aluminum-zinc-silicon epoxy composite powder anticorrosive coating and preparation method thereof

A composite powder and anti-corrosion coating technology, applied in powder coatings, anti-corrosion coatings, epoxy resin coatings, etc., to achieve the effect of solving self-corrosion current, increasing corrosion resistance types, and reducing specific gravity

Inactive Publication Date: 2015-03-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of wear-resistant and impact-resistant metal resin-based composite powder coating with better anti-corrosion performance in view of the shortcomings of the existing single metal-based and resin-based coatings.

Method used

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  • Aluminum-zinc-silicon epoxy composite powder anticorrosive coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An aluminum-zinc-silicon epoxy composite powder anticorrosion coating is composed of the following raw materials in parts by weight:

[0027] 50 parts of E-12 type epoxy resin (epoxy equivalent 800), 30 parts of aluminum-zinc-silicon alloy powder (Al: 45%, Si: 3%, Re: 0.02%, Mg: 0.1%, X: 0.6%, Zn : balance), 3 parts of nano-montmorillonite, 1 part of vinyltrimethoxysilane, 1 part of water glass, 1 part of dimethylimidazole, 3 parts of polyvinyl butyral, 1 part of hydrogenated castor oil, pigments and fillers 10 servings.

[0028] The above-mentioned pigments and fillers are composed of the following raw materials in parts by weight:

[0029] 3 parts of talcum powder, 4 parts of calcium carbonate, 1 part of titanium dioxide, 1 part of quartz powder, and 1 part of zinc phosphate.

[0030] The preparation method of the above-mentioned aluminum-zinc-silicon epoxy composite powder anti-corrosion coating is as follows: after fully mixing aluminum-zinc-silicon alloy powder, ...

Embodiment 2

[0032] An aluminum-zinc-silicon epoxy composite powder anticorrosion coating is composed of the following raw materials in parts by weight:

[0033] E-12 type epoxy resin 55 parts (epoxy equivalent 600), aluminum zinc silicon alloy powder 25 parts (Al: 69%, Si: 0.2%, Re: 0.9%, Mg: 0.55%, X: 1.2%, Zn : balance), 3 parts of nano-zinc oxide, 2 parts of aminopropyltriethoxysilane, 1 part of sodium hexametaphosphate, 1 part of dicyandiamide, 2 parts of polyolefin elastomer, 1 part of cellulose acetate, pigment Filling 10 parts.

[0034] The above-mentioned pigments and fillers are composed of the following raw materials in parts by weight:

[0035] 3 parts of talcum powder, 4 parts of calcium carbonate, 1 part of titanium dioxide, 1 part of quartz powder, and 1 part of zinc phosphate.

[0036] The preparation method of the above-mentioned aluminum-zinc-silicon epoxy composite powder anticorrosion coating is as follows: after fully mixing aluminum-zinc-silicon alloy powder, nano-z...

Embodiment 3

[0038] An aluminum-zinc-silicon epoxy composite powder anticorrosion coating is composed of the following raw materials in parts by weight:

[0039] 55 parts of E-12 type epoxy resin (epoxy equivalent 800), 20 parts of aluminum-zinc-silicon alloy powder (Al: 50%, Si: 1.5%, Re: 0.4%, Mg: 0.3%, X: 0.9%, Zn : balance), 4 parts of nano aluminum oxide, 1 part of styryl trimethoxysilane, 1 part of triethylhexyl phosphoric acid, 1 part of phenolic resin, 2 parts of polybutylene succinate, 1 part of polyacrylate parts, 15 parts of pigments and fillers.

[0040] The above-mentioned pigments and fillers are composed of the following raw materials in parts by weight:

[0041] 5 parts of talcum powder, 5 parts of calcium carbonate, 2 parts of titanium dioxide, 1.5 parts of quartz powder, and 1.5 parts of zinc phosphate.

[0042]The preparation method of the above-mentioned aluminum-zinc-silicon epoxy composite powder anticorrosion coating is: after fully mixing aluminum-zinc-silicon all...

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Abstract

The invention provides an aluminum-zinc-silicon epoxy composite powder anticorrosive coating and a preparation method thereof. The coating comprises the following raw materials in parts by mass: 50-60 parts of epoxy resin, 20-30 parts of aluminum-zinc-silicon alloy powder, 3-5 parts of a nano-nucleating agent, 1-2 parts of a silane coupling agent, 1-2 parts of a dispersant, 2-4 parts of a curing agent, 2-4 parts of a toughening agent, 1-2 parts of a leveling agent and 10-15 parts of filler and pigment. The preparation method comprises the following steps: fully mixing the aluminum-zinc-silicon alloy powder, the nano-nucleating agent, the dispersant and the filler and pigment, adding the silane coupling agent, stirring and ultrasonically dispersing to obtain a component I; mixing the epoxy resin, the curing agent, the toughening agent and the leveling agent, drying at 80 DEG C for 20 minutes, and cooling to the normal temperature to obtain a component II; mixing the component I with the component II, putting a mixture into an extruder for melt extrusion, grinding and screening. The coating is heat-resistant, wear-resistant and impact-resistant, and can protect a steel structure from being corroded by various corrosive mediums for a long term.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, and in particular relates to an aluminum-zinc-silicon-silicon epoxy composite powder anticorrosion coating. Background technique [0002] my country has a vast sea area and rich marine resources. Especially in recent years, the country has continuously increased its emphasis on marine development, the rapid development of the marine economy, and the rise of the shipbuilding industry. The market prospects for marine oil and gas resource pipelines and marine coatings are very optimistic. Also getting higher and higher. [0003] The existing coatings in this field are mainly divided into two categories: metal-based and resin-based. Among the metal-based coatings, the most advanced method is to use aluminum-zinc-silicon alloy powder as the matrix, adopt the solution preparation method, and finally obtain emulsion-like coatings. This type of coating is widely used in marine climate engineering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D5/03C09D7/12
CPCC09D163/00C08K2201/011C08L2201/08C08L2205/03C08L2205/035C09D5/03C09D5/103C09D5/106C09D7/61C09D7/65C08L29/14C08L91/00C08K13/02C08K2003/0812C08K2003/0893C08K3/346C08K2003/265C08K2003/2241C08L23/00C08L1/14C08K2003/2296C08L61/06C08L67/02C08L33/04C08K2003/2227C08L67/00C08K3/36
Inventor 姚正军姚芮周金堂罗西希林玉划
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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