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Anti-cracking, anti-oxidation and anti-rust epoxy finish paint and preparation method thereof

An anti-oxidation and epoxy surface technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve problems such as performance degradation and cracking, and achieve improved crack resistance, enhanced service performance, and enhanced corrosion resistance. Effect

Active Publication Date: 2022-07-05
福建福松新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The weight ratio of component A to component B is 6-8:1; the raw material of this product has good anti-rust effect, but at high temperature, it will crack and interact with saline-alkali environment, and the performance of the product will be significantly reduced. Based on this, this product The invention needs further improvement

Method used

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  • Anti-cracking, anti-oxidation and anti-rust epoxy finish paint and preparation method thereof
  • Anti-cracking, anti-oxidation and anti-rust epoxy finish paint and preparation method thereof

Examples

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preparation example Construction

[0038] The preparation method of the carbon nanotube slurry of the present embodiment is:

[0039] S111: Add 10-20 parts of carbon nanotubes to 35-45 parts of water to disperse to prepare a carbon nanotube suspension, and then add 1-5 parts by weight of 1-3% lanthanum nitrate aqueous solution, 1-2 parts by weight to the suspension parts of sodium dodecyl benzene sulfonate, ultrasonic dispersion treatment, the treatment is finished, washed with water, and dried to obtain pretreated carbon nanotubes;

[0040] S112: 25-35 parts of pretreated carbon nanotubes are added to 35-45 parts of ethanol solvent, 2-5 parts of chitosan, 1-3 parts of hydrochloric acid solution are added, and then 5-9 parts of N-2-aminoethyl acetate are added yl-3-aminopropyltrimethylsilane, 1-3 parts of triethanolamine borate, and stir well to obtain carbon nanotube slurry.

[0041] In S111 of this embodiment, the power of ultrasonic dispersion is 350-450W, and the ultrasonic time is 15-25min.

[0042] The ...

Embodiment 1

[0049] An anti-cracking, anti-oxidizing and anti-rust epoxy topcoat of the present embodiment includes the following raw materials in parts by weight:

[0050] 35 parts of epoxy resin, 10 parts of acrylic emulsion, 5 parts of modified potassium hexatitanate whiskers, 3 parts of magnesium-aluminum hydrotalcite improvement additives, 5 parts of anti-corrosion additives, 1 part of methyltrimethoxysilane, silicone defoamer 0.2 part of the solvent, 0.1 part of dimethylaminoethanol, and 30 parts of ethanol solvent.

[0051] The modification method of the modified potassium hexatitanate crystal whisker of the present embodiment is:

[0052] S101: The potassium hexatitanate whiskers are firstly sent into the carbon nanotube slurry with twice the amount of carbon nanotubes at a temperature of 75° C., stirred and dispersed for 35 minutes, and the stirring speed is 500 r / min, and the stirring is completed to obtain a modified whisker composite slurry ;

[0053] S102: The modified whisk...

Embodiment 2

[0065] An anti-cracking, anti-oxidizing and anti-rust epoxy topcoat of the present embodiment includes the following raw materials in parts by weight:

[0066] 45 parts of epoxy resin, 20 parts of acrylic emulsion, 9 parts of modified potassium hexatitanate whiskers, 6 parts of magnesium-aluminum hydrotalcite improvement additives, 9 parts of anti-corrosion additives, 5 parts of methyltrimethoxysilane, silicone defoaming 0.8 part of the solvent, 0.7 part of dimethylaminoethanol, and 40 parts of ethanol solvent.

[0067] The modification method of the modified potassium hexatitanate crystal whisker of the present embodiment is:

[0068] S101: The potassium hexatitanate whiskers are firstly sent into 4 times the carbon nanotube slurry at a temperature of 85°C, stirred and dispersed for 45 minutes, the stirring speed is 700 r / min, and the stirring is completed to obtain a modified whisker composite slurry ;

[0069] S102: The modified whisker composite slurry is washed with wat...

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Abstract

The invention discloses an anti-cracking, anti-oxidation and anti-rust epoxy finish paint. Comprising the following raw materials in parts by weight: 35-45 parts of epoxy resin, 10-20 parts of an acrylic emulsion, 5-9 parts of modified potassium hexatitanate whiskers, 3-6 parts of a magnesium-aluminum hydrotalcite improved additive, 5-9 parts of a corrosion-resistant additive, 1-5 parts of methyltrimethoxysilane, 0.2-0.8 part of an organic silicon defoaming agent, 0.1-0.7 part of dimethylaminoethanol and 30-40 parts of an ethanol solvent. According to the anti-cracking, anti-oxidation and anti-rust epoxy finish paint disclosed by the invention, the epoxy resin is matched with the acrylic emulsion, and the modified potassium hexatitanate whisker and the magnesium-aluminum hydrotalcite are added to improve the additive so as to enhance the anti-cracking performance of salt corrosion resistance and high-temperature stability of a product; the stability and crack resistance of the product under high temperature and corrosion are obviously improved.

Description

technical field [0001] The invention relates to the technical field of epoxy topcoats, in particular to an anti-cracking, anti-oxidizing, and anti-rust epoxy topcoat and a preparation method thereof. Background technique [0002] The biggest problem faced by steel in the application process is how to prevent corrosion and prolong its service life. Commonly used methods are: anti-corrosion coating, galvanizing, nickel plating, chrome plating, surface passivation and grease anti-corrosion. Large-scale steel equipment such as bridges, transmission towers, ships, etc. are generally combined with galvanizing and anti-corrosion coatings when leaving the factory. After a period of use, especially in harsh environments such as deserts, salt lakes, and severe pollution in my country, the protective layer is inevitably damaged. However, it is inconvenient to carry out galvanizing operation again. The most effective way is to apply anti-corrosion paint again. The commonly used anti-cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D133/00C09D5/08C09D7/62C09D7/63
CPCC09D163/00C09D5/08C09D7/62C09D7/70C09D7/63C08K2201/011C08K2003/2296C08K2003/2248C08K2003/328C08L2201/08C08L33/00C08K9/02C08K9/00C08K7/08C08K3/26C08K9/04C08K3/22C08K3/32C08K3/36C08K5/5419C08K5/17
Inventor 潘雪鸿何绪芳
Owner 福建福松新材料科技有限公司