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A coating anti-corrosion protective agent, its preparation method and application, and a hot-dip metal material

A technology of hot-dip metal and protective agent, which is applied in coatings, anti-corrosion coatings, polyester coatings, etc. It can solve the problems of poor corrosion resistance of protective films and achieve excellent storage resistance and corrosion resistance.

Inactive Publication Date: 2016-06-15
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 coating corrosion protection agent, and provide a coating corrosion protection agent capable of forming a better corrosion protection film

Method used

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  • A coating anti-corrosion protective agent, its preparation method and application, and a hot-dip metal material

Examples

Experimental program
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preparation example Construction

[0013] The invention provides a preparation method of a coating anti-corrosion protective 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 The agent includes a first silane coupling agent and a second silane coupling agent, and the first 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 second silane coupling agent is HS (CH 2 ) 3 Si(OCH 3 ) 3 、HS(CH 2 ) 3 Si(OC 2 h 5 ) 3 、HS(CH 2 ) 3 SiCH 3 (OCH 3 ) 2 and HS(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 silane coupling agent to obtain a uniform liquid A; (2) uniformly mixing the uniform liquid A and a water-soluble silicate to obtain a uniform liquid ...

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 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.

[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, purchased from Shandong Ba...

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 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.

[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 sol, purchased ...

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Abstract

The invention provides a preparation method of a coating anti-corrosion protective agent, which comprises the steps of uniformly mixing water, a silane coupling agent, a water-soluble silicate, a silicon oxide filler and a water-soluble film-forming resin in sequence. The present invention also provides the coating anti-corrosion protection agent prepared according to the above-mentioned preparation method and the application of the coating anti-corrosion protection agent in the preparation of metal materials. The present invention also provides a hot-dip metal material, which includes a hot-dip metal substrate and a coating attached to the hot-dip metal substrate, and the coating is the above-mentioned coating corrosion protection The cured product of the agent. The corrosion resistance of the protection film formed by the coating anti-corrosion protection agent provided by the invention is very good. In addition, the anti-corrosion protection agent for plating provided by the invention has excellent storage resistance, and can be stored at room temperature for 180 days without obvious change in properties and performance decline after preparation.

Description

technical field [0001] The invention relates to the field of metal protection, in particular to a preparation method of a coating anti-corrosion protection agent, a coating anti-corrosion protection agent obtained by the preparation method, an application of the coating anti-corrosion protection agent and a hot-dip metal material. 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 corrosion-resistant protective agent will be coated on the surface of the hot-dip metal material to form a protective film. Therefore, the performance of the coating anti-corrosion protective 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 coating corrosion protection agent, and is characterized in that the passivation solution is an aqueous solution c...

Claims

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Application Information

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