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Alkaline silane rare-earth-doped treating agent for metal surface treatment and preparation method and application thereof

A technology of metal surface treatment and rare earth doping, applied in the direction of metal material coating process, etc., to achieve the effect of inhibiting corrosion reaction, good effect, simple and novel method

Inactive Publication Date: 2019-05-07
SHENYANG PARKERIZING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Patent US 5292549 discloses a metal coated steel sheet with a thin siloxane film providing temporary corrosion protection and a method of applying the siloxane film which can be removed by alkaline cleaning despite such pretreatment The method provides a non-toxic coating that is not affected by humidity, but imparts only temporary corrosion resistance to the metal-coated steel sheet and needs to be removed before any further coating steps

Method used

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  • Alkaline silane rare-earth-doped treating agent for metal surface treatment and preparation method and application thereof
  • Alkaline silane rare-earth-doped treating agent for metal surface treatment and preparation method and application thereof
  • Alkaline silane rare-earth-doped treating agent for metal surface treatment and preparation method and application thereof

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Embodiment 1

[0071] A kind of alkaline silane rare earth doping treatment agent for metal surface treatment

[0072] 1. The raw materials include the following components formulated by weight percentage:

[0073]

[0074] Two, the preparation method is as follows:

[0075] Prepare according to the ratio of the above raw materials, first add water, then add triethanolamine, 3-aminopropyltrimethoxysilane, cerium nitrate, ethylene glycol, hydroxyethyl hexahydro-s-triazine, potassium citrate in turn under stirring . Fully stir and disperse evenly for half an hour, then test whether the pH is in the preferred range, if the pH is not in the required range, use an appropriate amount of NaOH to adjust the pH to 9.5, and the target product alkaline silane rare earth doping treatment agent can be obtained.

[0076] In actual use, the product is diluted with water at a weight ratio of 1:100 to obtain a usable alkaline silane treatment bath. The basic silane rare earth doping treatment agent in ...

Embodiment 2

[0078] A kind of alkaline silane rare earth doping treatment agent for metal surface treatment

[0079] 1. The raw materials include the following components formulated by weight percentage:

[0080]

[0081] Two, the preparation method is as follows:

[0082] Prepare according to the ratio of the above raw materials, first add water, then add triethanolamine, tetraethyl orthosilicate, 3-aminopropyltrimethoxysilane, cerium nitrate, ethylene glycol, hydroxyethyl hexahydro s-triazine, potassium citrate. Fully stir and disperse evenly for half an hour, then test whether the pH is in the preferred range, if the pH is not in the required range, use an appropriate amount of NaOH to adjust the pH to 9.5, and the target product alkaline silane rare earth doping treatment agent can be obtained.

[0083] In actual use, the product is diluted with water at a weight ratio of 1:100 to obtain a usable alkaline silane treatment bath. The basic silane rare earth doping treatment agent i...

Embodiment 3

[0085] A kind of alkaline silane rare earth doping treatment agent for metal surface treatment

[0086] 1. The raw materials include the following components formulated by weight percentage:

[0087]

[0088]

[0089] Two, the preparation method is as follows:

[0090] Prepare according to the ratio of the above raw materials, first add water, then add triethanolamine, glycidoxypropyltriethoxysilane, cerium nitrate, ethylene glycol, 1,2-benzisothiazole-3 - Ketones, Sodium Citrate. Fully stir and disperse evenly for half an hour, then test whether the pH is in the preferred range, if the pH is not in the required range, use an appropriate amount of NaOH to adjust the pH to 9.5, and the target product alkaline silane rare earth doping treatment agent can be obtained.

[0091] In actual use, the product is diluted with water at a weight ratio of 1:100 to obtain a usable alkaline silane treatment bath. The basic silane rare earth doping treatment agent in this embodiment ...

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Abstract

The invention discloses an alkaline silane rare-earth-doped treating agent for metal surface treatment and a preparation method and application thereof. The alkaline silane rare-earth-doped treating agent comprises a silane coupling agent, a rare-earth cerium compound, an organic stabilizer, a sterilizing agent, a metal chelating agent and water. According to the alkaline silane rare-earth-doped treating agent, the silane coupling agent serves as a main film-forming agent, and a small amount of cerium salt is added into the system to serve as a film layer sealing agent and repairing agent, sothat a protective film layer is formed in the surface of a substrate, and the corrosion rate of the substrate is decreased; and when the system makes contact with metal substrates, silicon and ceriumcan be subjected to a series of hydrolysis and adsorption reactions on the surface of the substrate, complex silicon and cerium doped organic and inorganic hybrid films are formed on the surface of the substrate, and the corrosion resistance of metal is improved.

Description

technical field [0001] The invention belongs to the field of metal surface treatment, and in particular relates to an alkaline silane rare earth doping treatment agent for anticorrosion of the surface of metal substrates, a preparation method and application thereof. Background technique [0002] Metal materials are damaged by the action of the surrounding medium, which is called metal corrosion. When metal corrodes, the metal will undergo chemical or electrochemical multiphase reactions with air, water, etc. on the metal interface, causing the metal to enter an oxidized (ion) state, which will significantly reduce the mechanical properties of the metal material such as strength, plasticity, and toughness. Destroying the geometric shape of metal components, increasing the wear of parts, deteriorating electrical and optical physical properties, and shortening the service life of equipment. Corrosion of metals accounts for about one-third of the total output in the world ever...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/62C23C22/66C23C22/60
Inventor 张洋吴伏生任佩佩周宪民
Owner SHENYANG PARKERIZING
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