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Ultrathin nano-scale anticorrosion coating and self-leveling dip-coating process thereof

A kind of anti-corrosion coating, nano-type technology, applied in the field of coating anti-corrosion, can solve the problems of demanding aluminum phosphate particles, complex production process, impossibility of dip coating, etc., to achieve enhanced physical isolation, wide adaptability, good anti-corrosion performance and The effect of abrasion resistance and scratch resistance

Active Publication Date: 2017-09-29
GUANGZHOU SYSMYK NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this coating composition has strict requirements on aluminum phosphate particles, its production process is complex, production efficiency is low, and the coating construction method cannot realize dip coating, and the coating film thickness is relatively thick.

Method used

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  • Ultrathin nano-scale anticorrosion coating and self-leveling dip-coating process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of ultra-thin nano-type anticorrosion coating provided by the invention comprises the following components by weight percentage:

[0034] Silicone modified epoxy resin: 40%

[0035] Tetrahydrophthalic anhydride: 2%

[0036] 1-cyanoethyl-2-phenylimidazole: 0.5%

[0037] Corrosion inhibitors: 2%

[0038] PTFE wax: 2%

[0039] Graphene oxide: 0.01%

[0040] Gold Dust 10%

[0041] Copper powder 5%

[0042] Solvent: 38.49%;

[0043] The modified resin is a hydroxyl-terminated polydimethylsiloxane modified epoxy resin with an epoxy equivalent of 430 and a viscosity of 12000 cps;

[0044] The solvent is formed by mixing cyclohexane and ethanol at a volume ratio of 7:5.

[0045] The anticorrosion inhibitor is prepared by the following method: Weigh the following components by weight: 40 parts of ethanol, 0.5 parts of phosphoric acid, 1 part of polyethylene glycol, 2 parts of aluminate coupling agent, solvent-based nanometer Add 25 parts of silicon oxide dispersi...

Embodiment 2

[0047] A kind of ultra-thin nano-type anticorrosion coating provided by the invention comprises the following components by weight percentage:

[0048] Aliphatic epoxy: 10%

[0049] Ketimine: 5%

[0050] Salicylic acid modified imidazole epoxy resin curing accelerator 0.1%

[0051] Corrosion inhibitors: 8%

[0052] Polyethylene wax: 1%

[0053] Hydrogenated graphene: 0.05%

[0054] Silver Powder 3%

[0055] Copper powder 3%

[0056] Zinc powder 4%

[0057] Solvent: 65.85%;

[0058] Described aliphatic epoxy resin is aliphatic glycidyl ether epoxy resin, and its epoxy equivalent is 450, and viscosity 10000cps;

[0059] The anticorrosion inhibitor is prepared by the following method: Weigh the following components by weight: 36 parts of ethanol, 2 parts of polyethylene glycol, 2 parts of aluminate coupling agent, solvent-based nano-silica dispersion 30 parts, 13 parts of aluminum tripolysilicate, and 14 parts of zinc phosphate were added to the reaction kettle, stirred at...

Embodiment 3

[0062] A kind of ultra-thin nano-type anticorrosion coating provided by the invention comprises the following components by weight percentage:

[0063] Phenolic modified epoxy resin: 17.28%

[0064] Latent dicyandiamide curing agent: 3%

[0065] 2-methylimidazole epoxy resin curing accelerator: 0.2%

[0066] Corrosion inhibitors: 3%

[0067] Fluorinated vinyl chloride wax: 1.5%

[0068] Fluorinated graphene: 0.02%

[0069] Floating aluminum paste: 3%

[0070] Zinc powder 2%

[0071] Solvent: 70%;

[0072] Described phenolic modified epoxy resin epoxy equivalent 440, viscosity 7000cps;

[0073] The anticorrosion inhibitor is prepared by the following method: Weigh the following components by weight: 44 parts of ethanol, 3 parts of polyethylene glycol, 3 parts of aluminate coupling agent, 25 parts of solvent-based nano-silica dispersion 18 parts, 18 parts of aluminum tripolysilicate, 10 parts of zinc phosphate, add to the reaction kettle, stir evenly at a high speed at r...

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Abstract

The invention discloses an ultrathin nano-scale anticorrosion coating and a self-leveling dip-coating process thereof. The ultrathin nano-scale anticorrosion coating does not contain metal and has ultra-strong scraping resistance, wear resistance and corrosion resistance. The coating has a good self-leveling effect in a coating process and can be used for replacing traditional electro-galvanizing and hot galvanizing processes, and after dip-coating, a coating layer is ultra-thin, wide in adaptability and low in production cost. According to the technical scheme, the ultrathin nano-scale anticorrosion coating contains the following components in percentage by weight (100% in total): 10%-40% of modified resin, 2%-5% of a curing agent, 0.1%-0.5% of a curing accelerator, 2%-8% of an anticorrosion inhibitor, 1%-2% of a nano-scale wax powder, 0.01%-0.05% of graphene powder, 5%-15% of a metal composition and 30%-70% of a solvent.

Description

technical field [0001] The invention relates to the technical field of coating anti-corrosion, in particular to an ultra-thin nano-type anti-corrosion coating and a self-leveling dip-coating process thereof. Background technique [0002] Electroplating is an important basis for surface treatment of materials and is widely used in various fields of national production. Among them, galvanizing is the main means of surface protection for steel and steel products. The traditional galvanizing process is hot-dip galvanizing and electro-galvanizing. However, , in the process and the pre-plating and post-plating treatment will pollute the environment to varying degrees. The electroplating and hot-plating industries have become a major source of pollution in addition to papermaking, printing and dyeing. Among them, the wastewater produced by electro-galvanizing is the electroplating wastewater. For example, 10 electroplating factories in a city in Japan have a daily wastewater discha...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D183/10C09D5/10C09D7/12B05D1/18
CPCB05D1/18C08K2003/0806C08K2003/0831C08K2003/085C08K2003/0893C08K2003/328C08K2003/329C08K2201/011C08L2205/03C09D5/10C09D5/103C09D5/106C09D163/00C09D183/10C08L23/06C08K13/02C08K3/04C08K3/08C08K3/36C08K3/32C08K3/34
Inventor 蒋卫中林思超龚红升邓明宗
Owner GUANGZHOU SYSMYK NEW MATERIAL TECH CO LTD
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