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An ultra-thin nano-type anti-corrosion coating and its self-leveling dip-coating process

An anti-corrosion coating and nano-technology, applied in the field of coating anti-corrosion, can solve the problems of demanding aluminum phosphate particles, inability to achieve dip coating, complex production process, etc., to achieve enhanced physical isolation, good anti-corrosion performance, wear resistance and scratch resistance. High performance and wide adaptability

Active Publication Date: 2019-05-28
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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  • An ultra-thin nano-type anti-corrosion coating and its self-leveling dip-coating process
  • An ultra-thin nano-type anti-corrosion coating and its self-leveling dip-coating process
  • An ultra-thin nano-type anti-corrosion coating and its self-leveling dip-coating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of ultra-thin nano-type anticorrosion coating provided by the invention comprises the following components by weight percentage:

[0026]

[0027] The modified resin is a hydroxyl-terminated polydimethylsiloxane modified epoxy resin with an epoxy equivalent of 430 and a viscosity of 12000 cps;

[0028] The solvent is formed by mixing cyclohexane and ethanol at a volume ratio of 7:5.

[0029] 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 dispersion liquid, 15 parts of aluminum tripolysilicate, and 12 parts of zinc phosphate into the reaction kettle, stir evenly at a high speed at room temperature, then raise the temperature to 80°C, add 3 parts of hexamethylenetetramine and 1 part of cyclic The mixed solution of hexylamine was add...

Embodiment 2

[0031] A kind of ultra-thin nano-type anticorrosion coating provided by the invention comprises the following components by weight percentage:

[0032]

[0033] Described aliphatic epoxy resin is aliphatic glycidyl ether epoxy resin, and its epoxy equivalent is 450, and viscosity 10000cps;

[0034] 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 a high speed at room temperature, and then heated to 80°C, and a mixture of 2.5 parts of hexamethylenetetramine and 1 part of cyclohexylamine was added dropwise. After the solution was added dropwise, it was incubated at 80° C. for 4 hours to obtain the anticorrosion inhibitor.

[0035] The solvent is prepared by mixing petrol...

Embodiment 3

[0037] A kind of ultra-thin nano-type anticorrosion coating provided by the invention comprises the following components by weight percentage:

[0038]

[0039] Described phenolic modified epoxy resin epoxy equivalent 440, viscosity 7000cps;

[0040] 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 room temperature, then raise the temperature to 80°C, add dropwise a mixed solution of 3.5 parts of hexamethylenetetramine and 1 part of cyclohexylamine , after the dropwise addition was completed, the anticorrosion inhibitor was obtained by incubating at 80° C. for 4 hours.

[0041] The solvent is formed by mixing hexane and toluene at a volume ratio o...

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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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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D183/10C09D5/10C09D7/61C09D7/65B05D1/18
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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