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Surface treatment agent and preparation method and use thereof, and hot-dip plated metal material

A surface treatment agent, hot-dip metal plating technology, used in metal layered products, chemical instruments and methods, anti-corrosion coatings, etc., can solve the problems of poor corrosion resistance of protective films, and achieve excellent storage resistance and corrosion resistance. Effect

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 poor corrosion resistance of the protective film formed by the existing surface treatment agent, and provide a surface treatment agent capable of forming a protective film with better corrosion resistance

Method used

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  • Surface treatment agent and preparation method and use thereof, and hot-dip plated metal material

Examples

Experimental program
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Effect test

preparation example Construction

[0013] The invention provides a method for preparing a surface treatment agent, which comprises mixing water, a silane coupling agent, a water-soluble silicate, a silicon oxide filler, and a water-soluble film-forming resin in sequence; the silane coupling agent includes The first silane coupling agent and the second silane coupling agent, the first silane coupling agent is R-Si(OCH 3 ) 3 , R-Si(OC 2 h 5 ) 3 , R-SiCH 3 (OCH 3 ) 2 and R-SiCH 3 (OC 2 h 5 ) 2 At least one of, and each R is independently selected from NH 2 (CH 2 ) 2 NH(CH 2 ) 3 -, NH 2 (CH 2 ) 2 NHCH 2 CH(CH 3 )CH 2 -, HO(CH 2 ) 2 NH(CH 2 ) 2 NH(CH 2 ) 3 - or NH 2 (CH 2 ) 2 NH(CH 2 ) 2 NH(CH 2 ) 3 -; The second silane coupling agent is Cl(CH 2 ) 3 Si(OCH 3 ) 3 , Cl(CH 2 ) 3 Si(OC 2 h 5 ) 3 , Cl(CH 2 ) 3 SiCH 3 (OCH 3 ) 2 and Cl(CH 2 ) 3 SiCH 3 (OC 2 h 5 ) 2 at least one of the

[0014] Wherein, in detail, the method includes: (1) uniformly mixing water and the ...

Embodiment 1

[0051] 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 NH 2 (CH 2 ) 2 NH(CH 2 ) 3 Si(OCH 3 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-792, the second 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 weight ratio of the first silane coupling agent and the second silane coupling agent is 1:0.5.

[0052] 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 .

[0053] All the homogeneous liquid B and 0.72 parts by weight of silica filler (nano silica sol, purcha...

Embodiment 2

[0066] 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 NH 2 (CH 2 ) 2 NH(CH 2 ) 3 Si(OC 2 h 5 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-793, the second 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 weight ratio of the first silane coupling agent and the second silane coupling agent is 1:0.4.

[0067] 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.

[0068] Mix all the homogeneous liquid B and 0.6 parts by weight of silica filler (nano-silica ...

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Abstract

The invention provides a preparation method of a surface treatment agent. The method comprises successively mixing evenly water, silane coupling agents, water-soluble silicate, a silica filler and water-soluble film-forming resin. The invention also provides the surface treatment agent prepared according to the preparation method and a use thereof in preparation of metal materials. The invention further provides a hot-dip plated metal material which comprises a hot-dip plated metal substrate and a coating layer adhering onto the hot-dip plated metal substrate, wherein the coating layer is a cured product of the surface treatment agent. A protective film formed by the surface treatment agent provided by the invention is quite excellent in corrosion resistance. In addition, the surface treatment agent provided by the invention is quite excellent in storage resistance, and can be stored for 180 days at room temperature after completion of preparation but does not generate obvious character changes and performance reduction.

Description

technical field [0001] The invention relates to the field of metal protection, in particular to a preparation method of a surface treatment agent, a surface treatment agent obtained by the preparation method, uses of the surface 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 surface treatment agent will be coated on the surface of the hot-dip metal materials to form a protective film. Therefore, the performance of the surface 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 a surface treatment agent, and is characterized in that the passivation solution is an aqueous solution containing water-soluble molybdenum compound, boric acid, water-soluble organic matter and silica s...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D125/14C09D163/00C09D175/04C09D133/04C09D127/12C09D7/12C09D5/08B32B15/08
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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