Antirust surface chemical treatment agent, preparation method and application thereof, and hot-dipped metal material

A technology for surface chemical treatment and hot-dip metal plating, which is used in the field of hot-dip metal materials and anti-rust surface chemical treatment agents, which can solve the problems of poor corrosion resistance of protective films, and achieve the effects of excellent storage resistance and corrosion resistance.

Inactive Publication Date: 2014-09-24
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to overcome the relatively poor corrosion resistance defect of the protective film formed by the existing antirust surface chemical treatment agent, and provide a kind of antirust surface chemical treatment agent capable of forming a better protective film with corrosion resistance

Method used

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  • Antirust surface chemical treatment agent, preparation method and application thereof, and hot-dipped metal material

Examples

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preparation example Construction

[0025] According to the preparation method of the anti-rust surface chemical treatment agent provided by the present invention, in order to further improve the lubricating performance of the formed protective film, preferably, the preparation method also includes: mixing the water and the silane coupling agent uniformly Mix evenly with the lubricating aid, and the lubricating aid is one of aqueous emulsion of simethicone oil, polyether-modified polysiloxane, aqueous emulsion of polyethylene wax and aqueous emulsion of oxidized polyethylene wax or Various.

[0026] More preferably, relative to 1 part by weight of the water-soluble silicate, the content of the lubricating aid is 0.2-1.8 parts by weight, more preferably 0.5-0.7 parts by weight.

[0027] Wherein, the solid content of the aqueous emulsion of simethicone oil may be 10-90% by weight, preferably 30-80% by weight. It should be noted that when the aqueous emulsion of simethicone is used to prepare the anti-rust surface...

Embodiment 1

[0052] Mix 28 parts by weight of water and 1.6 parts by weight of silane coupling agent (composed of the first silane coupling agent and the second silane coupling agent) at a stirring speed of 1500 rpm to obtain uniform liquid A, Among them, the first silane coupling agent is Cl(CH 2 ) 3 Si(OCH 3 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-231, the second silane coupling agent HS (CH 2 ) 3 Si(OCH 3 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-590, the weight ratio of the first silane coupling agent and the second silane coupling agent is 1.5:1.

[0053] Mix all the uniform liquid A and 1 part by weight of water-soluble silicate (sodium metasilicate pentahydrate, purchased from Qingdao Darun Chemical Co., Ltd.) at a stirring speed of 1500 rpm until uniform to obtain uniform liquid B .

[0054] All of the homogeneous liquid B and 0.6 parts by weight of accelerator (thiourea) were mixed until uniform at a sti...

Embodiment 2

[0068] Mix 25 parts by weight of water and 1.4 parts by weight of silane coupling agent (composed of the first silane coupling agent and the second silane coupling agent) at a stirring speed of 1500 rpm to obtain a homogeneous liquid A, Among them, the first silane coupling agent is Cl(CH 2 ) 3 Si(OCH 3 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-231, the second silane coupling agent is HS (CH 2 ) 3 Si(OC 2 h 5 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-580, the weight ratio of the first silane coupling agent and the second silane coupling agent is 1.4:1.

[0069] All of the uniform liquid A and 1 part by weight of water-soluble silicate (potassium silicate, purchased from Baoding Runfeng Industrial Co., Ltd.) were mixed until uniform at a stirring speed of 1500 rpm to obtain a uniform liquid B.

[0070] All of the homogeneous liquid B and 0.5 parts by weight of accelerator (an equal weight mixture of thi...

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Abstract

The invention provides a preparation method of an antirust surface chemical treatment agent, which comprises well mixing of water, a silane coupling agent, water-soluble silicate, a promoter, a silicon oxide filling material, and water-soluble film forming resin in order. The invention also provides an antirust surface chemical treatment agent prepared by the preparation method, and an application of the antirust surface chemical treatment agent in preparation of metal materials. The invention also provides a hot-dipped metal material which comprises a hot-dipped metal substrate, and a coating adhered to the hot-dipped metal substrate, and the coating is a cured product of the above antirust surface chemical treatment agent. Protecting films formed by the antirust surface chemical treatment agent provided in the invention have quite excellent corrosion resistance. In addition, the antirust surface chemical treatment agent provided in the invention is quite excellent in storage resistance, and can be stored at room temperature for 180 days after preparation without any obvious property change or performance reduction.

Description

technical field [0001] The invention relates to the field of metal protection, in particular to a preparation method of an anti-rust surface chemical treatment agent, an anti-rust surface chemical treatment agent obtained by the preparation method, uses of the anti-rust surface chemical treatment agent and hot-dip metal materials . Background technique [0002] Hot-dip metal materials, including hot-dip galvanized metal materials and hot-dip galvanized metal materials, in order to prevent corrosion, a layer of anti-rust surface chemical treatment agent is applied to the surface of hot-dip metal materials to form a protective film. Therefore, the performance of the anti-rust surface chemical treatment agent is very important for the anti-corrosion of hot-dip metal materials. [0003] For example, CN101608306A discloses a passivation solution, which also belongs to an anti-rust surface chemical treatment agent, and is characterized in that the passivation solution is an aqueo...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D125/14C09D163/00C09D175/04C09D133/04C09D133/00C09D127/12C09D5/08C09D7/12B32B15/08
Inventor 许哲锋李纪仁李南黄平生李光跃
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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