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Conversion layer forming liquid and preparation method and use thereof, and hot-dip plated metal material

A technology of hot-dip metal and conversion layer, which is applied in coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problems of poor corrosion resistance of protective films, and achieve 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 present invention is to overcome the poor corrosion resistance defect of the protective film formed by the existing conversion layer forming liquid, and provide a conversion layer forming liquid capable of forming a protective film with better corrosion resistance

Method used

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  • Conversion layer forming liquid and preparation method and use thereof, and hot-dip plated metal material

Examples

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Effect test

preparation example Construction

[0013] The invention provides a method for preparing a conversion layer forming liquid. The method comprises 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 silane coupling agent for (CH 3 O) 3 Si(CH 2 ) 2 Si(OCH 3 ) 3 and / or (C 2 h 5 O) 3 Si(CH 2 ) 2 Si(OC 2 h 5 ) 3 .

[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 B; (3) uniformly mixing the uniform liquid B and silica filler to obtain a uniform liquid C; (4) uniformly mixing the uniform liquid C with a water-soluble film-forming resin to obtain a uniform liquid D. Among them, the method of uniform mixing is not particularly limited, as long as a uniform stable phase can be obtained, and it is preferable to make the mixing...

Embodiment 1

[0050] With the water of 28 weight parts and the silane coupling agent ((CH 3 O) 3 Si(CH 2 ) 2 Si(OCH 3 ) 3 (purchased from Hubei Limeida Silicon Fluoride Technology Co., Ltd., brand LMD-26M)) Mix until uniform at a stirring speed of 1500 rpm to obtain uniform liquid A.

[0051] 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 .

[0052] All the homogeneous liquid B and 0.72 parts by weight of silica filler (nano silica sol, purchased from Shandong Baite New Material Co., Ltd., the brand is SS-30, and the weight is calculated as silica) at 1500 rpm Mix until homogeneous at stirring speed to obtain homogeneous liquid C.

[0053] All the homogeneous liquid C and 2.4 parts by weight (in terms of solids) of water-soluble film-forming resin (water-soluble silicone acrylic film-forming resin (Si...

Embodiment 2

[0061] With the water of 25 parts by weight and the silane coupling agent of 1.4 parts by weight ((C 2 h 5 O) 3 Si(CH 2 ) 2 Si(OC 2 h 5 ) 3 (purchased from Hubei Limeida Silicon Fluoride Technology Co., Ltd., brand LMD-26E)) and mix until uniform at a stirring speed of 1500 rpm to obtain a uniform liquid A.

[0062] 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.

[0063]Mix all the homogeneous liquid B and 0.6 parts by weight of silica filler (nano-silica sol, purchased from ADEKA Co., Ltd., the brand is AT-30, and the weight is calculated as silica) at a stirring speed of 1500 rpm until uniform, to obtain a uniform liquid C.

[0064] All the homogeneous liquid C and 2.1 parts by weight (in terms of solids) of water-soluble film-forming resin (water-soluble silicone acrylic film-form...

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Abstract

The invention provides a preparation method of a conversion layer forming liquid. 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 conversion layer forming liquid 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 conversion layer forming liquid. A protective film formed by the conversion layer forming liquid provided by the invention is quite excellent in corrosion resistance. In addition, the conversion layer forming liquid 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 conversion layer forming liquid, a conversion layer forming liquid obtained by the preparation method, an application of the conversion layer forming liquid 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 conversion layer forming liquid is applied on the surface of the hot-dip metal materials to form a protective film. Therefore, the performance of the conversion layer forming liquid 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 conversion layer forming solution, and is characterized in that the passivation solution is an aqueous solution containing a water-soluble molybdenum comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D125/14C09D163/00C09D175/04C09D133/04C09D133/00C09D127/12C09D7/12C09D5/08
Inventor 许哲峰陈永徐权李国安汤佩林周一林
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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