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Dacromet coating containing modified siloxane resin and preparation method thereof

A siloxane resin and modification technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of the stability of the coating liquid and the anti-corrosion effect being difficult to achieve the desired effect, the adhesion is not good, and the effect of the anti-corrosion coating is small. The method is simple and easy to operate, the performance is improved, and the anti-corrosion performance is good.

Inactive Publication Date: 2018-06-01
JIANGSU UNIV OF SCI & TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, although these inventions have carried out a lot of efforts, the stability of coating liquid and anticorrosion effect are still difficult to reach ideal effect, still have sizable distance with chromium-containing water-based dacromet coating.
[0003] The traditional siloxane resin has the disadvantage of poor adhesion, and its use in the coating industry has little effect on anti-corrosion coatings

Method used

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  • Dacromet coating containing modified siloxane resin and preparation method thereof
  • Dacromet coating containing modified siloxane resin and preparation method thereof
  • Dacromet coating containing modified siloxane resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. The formula of the composition

[0036] 1. Prepare a mixture of solvents according to the mass ratio.

[0037] 2. Prepare the content of each component of the composition by mass percentage:

[0038] A component:

[0039]

[0040] B component:

[0041] Contains titanium compounds 30%,

[0042] Solvent 70%.

[0043] 2. Preparation method

[0044] 1. At room temperature, mix modified siloxane resin, aluminum powder, zinc powder, stabilizer, polyethylene glycol, anti-flash rust agent, and corrosion inhibitor, and stir at a speed of 1000r / min for 0.5h to obtain a uniform Component A of the slurry, placed at room temperature;

[0045] 2. At room temperature, fully mix the titanium-containing compound and the solvent, and stir at a speed of 1500r / min for 1 hour to obtain a homogenized component B, and place it at room temperature;

[0046] 3. When in use, mix component A and component B prepared in steps 1 and 2, and stir at a speed of 2000r / min for 1 hour to obt...

Embodiment 2

[0050] 1. The formula of the composition

[0051] 1. Prepare a mixture of solvents according to the mass ratio.

[0052] 2. Prepare the content of each component of the composition by mass percentage:

[0053] A component:

[0054]

[0055] B component:

[0056] Titanium compound 35%,

[0057] Solvent 65%.

[0058] 2. Preparation method

[0059] 1. At room temperature, mix modified siloxane resin, aluminum powder, zinc powder, stabilizer, polyethylene glycol, anti-flash rust agent, and corrosion inhibitor, and stir at a speed of 2000r / min for 1 hour to obtain a homogenate Component A, placed at room temperature;

[0060] 2. At room temperature, fully mix the titanium-containing compound and the solvent, and stir at a speed of 2000r / min for 0.5h to obtain a homogenized B component, and place it at room temperature;

[0061] 3. When using, mix A component and B component prepared in steps 1 and 2, and stir at a speed of 2000r / min for 0.5h to obtain a dacromet coating c...

Embodiment 3

[0064] 1. The formula of the composition

[0065] 1. Prepare a mixture of solvents according to the mass ratio.

[0066] 2. Prepare the content of each component of the composition by mass percentage:

[0067] A component:

[0068]

[0069]

[0070] B component:

[0071] Titanium compound 35%,

[0072] Solvent 65%.

[0073] 2. Preparation method

[0074] 1. At room temperature, mix modified siloxane resin, aluminum powder, zinc powder, stabilizer, polyethylene glycol, anti-flash rust agent, and corrosion inhibitor, and stir at a speed of 2000r / min for 1 hour to obtain a homogenate Component A, placed at room temperature;

[0075]2. At room temperature, fully mix the titanium-containing compound and the solvent, and stir at a speed of 1000r / min for 1 hour to obtain a homogenized B component, and place it at room temperature;

[0076] 3. When in use, mix component A and component B prepared in steps 1 and 2, and stir at a speed of 1000r / min for 0.5h to obtain a dacr...

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Abstract

The invention discloses a dacromet coating containing modified siloxane resin and a preparation method of same. The coating includes a component A and a component B, wherein the component A is formedfrom 40-47% of modified siloxane resin, 5-6% of aluminum powder, 2-3% of zinc powder, 3-5% of a stabilizing agent, 36-42% of polyethylene glycol, 0.5-2% of an anti-flash-rust agent, and 3-5% of an corrosion inhibitor; the structure of the modified siloxane resin is represented as the specification, wherein R and R1 are respectively alkyl groups; the component B is a mixture of a crosslinking agentand a solvent, wherein the mixture includes, by mass, 30-40% of a titanium compound and 60-70% of a solvent. The dacromet coating has extensive raw material sources and simple preparation method. Themodified siloxane has high crosslinking density, so that the coating is significantly improved in anti-corrosion effect and can reach 800 h in salt fog resistant time.

Description

technical field [0001] The invention belongs to the technical field of metal surface protection treatment, relates to a new anti-corrosion coating, and more specifically relates to a composition containing modified siloxane resin dacromet coating and a preparation method thereof. Background technique [0002] Dacromet composition is an important anti-corrosion technology for metal surface treatment. Because it contains heavy metal chromium, its use is limited. In order to make the coating solution have the same performance without using chromium, people have carried out various researches and inventions. . But, although these inventions have carried out a lot of efforts, the stability and anticorrosion effect of coating solution are still difficult to reach desired effect, still have sizable distance with chromium-containing waterborne dacromet. [0003] The traditional siloxane resin has the disadvantage of poor adhesion, and its use in the coating industry has little effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D5/10C09D7/63
CPCC09D183/08C08K2003/0812C08K2003/0893C08L2205/03C09D5/103C09D5/106C08L71/02C08K13/02C08K3/08C08K5/32C08K5/17C08K5/0091
Inventor 高延敏朱桂生左银泽胡宗贵陈亮邵守言唐丽刘玲周岳珅
Owner JIANGSU UNIV OF SCI & TECH