Anticorrosive coating, preparation method and application thereof, and hot-dipped metal material

An anti-corrosion coating and hot-dip metal technology, which is applied in the field of hot-dip metal materials and anti-corrosion coatings, can solve the problems of poor corrosion resistance of the protective film, and achieve excellent storage resistance and excellent 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 poor corrosion resistance defect of the protective film formed by the existing anti-corrosion paint, and provide a kind of anti-corrosion paint capable of forming a protective film with good corrosion resistance

Method used

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  • Anticorrosive coating, preparation method and application thereof, and hot-dipped metal material

Examples

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Effect test

preparation example Construction

[0013] The invention provides a method for preparing an anti-corrosion coating, which method 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 CH 2 =CHSi(OCH 3 ) 3 、CH 2 =CHSi(OC 2 h 5 ) 3 、CH 2 =CHSiCH 3 (OCH 3 ) 2 、CH 2 =CHSiCH 3 (OC 2 h 5 ) 2 and CH 2 =CHSi(OCH 2 CH 2 OCH 3 ) 3 at least one of the

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

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 CH 2 =CHSi(OCH 3 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-171, 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, purchased f...

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 CH 2 =CHSi(OC 2 h 5 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-151, 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 an anticorrosive coating, which comprises well mixing of water, a silane coupling agent, water-soluble silicate, a silicon oxide filling material, and water-soluble film forming resin in order. The invention also provides an anticorrosive coating prepared by the preparation method, and an application of the anticorrosive coating 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 anticorrosive coating. Protecting films formed by the anticorrosive coating provided in the invention have quite excellent corrosion resistance. In addition, the anticorrosive coating 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-corrosion coating, an anti-corrosion coating obtained by the preparation method, an application of the anti-corrosion coating 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 anti-corrosion paint will be coated on the surface of the hot-dip metal materials to form a protective film. Therefore, the performance of anti-corrosion coatings 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-corrosion coating, and is characterized in that the passivation solution is an aqueous solution containing a water-soluble molybdenum compound, boric acid, water-soluble organic matter and sil...

Claims

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Application Information

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