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Anti-rust paint and its preparation method and application

A coating and silane coupling agent technology, which is applied in the direction of anti-corrosion coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of poor corrosion resistance of protective films, and achieve excellent storage resistance and excellent corrosion resistance.

Inactive Publication Date: 2016-07-06
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 anti-rust paint, and provide a kind of anti-rust paint capable of forming a protective film with good corrosion resistance

Method used

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  • Anti-rust paint and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0013] The invention provides a kind of preparation method of anti-rust paint, this method comprises water, silane coupling agent, water-soluble silicate, accelerator, silicon oxide filler and water-soluble film-forming resin are mixed successively; The coupling agent includes the first silane coupling agent and the second silane coupling agent, and 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 CH 2 (O)CHCH 2 O(CH 2 ) 3 -or 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 them; the accelerator is thiourea and / or urea.

[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 liqu...

Embodiment 1

[0053] 28 parts by weight of water and 1.6 parts by weight of a silane coupling agent (consisting of a first silane coupling agent and a second silane coupling agent) were mixed until uniform at a stirring speed of 1500 rpm to obtain a uniform liquid A, Wherein, the first silane coupling agent is CH 2 (O)CHCH 2 O(CH 2 ) 3 Si(OCH 3 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-560, the second silane coupling agent is 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 4:1.

[0054] All the homogeneous liquid A and 1 weight part of water-soluble silicate (sodium metasilicate pentahydrate, purchased from Qingdao Darun Chemical Co., Ltd.) were mixed until uniform at a stirring speed of 1500 rpm to obtain a homogeneous liquid B .

[0055] The entire homogeneous liquid B and 0.6 parts by weight of the a...

Embodiment 2

[0069] 25 parts by weight of water and 1.4 parts by weight of a silane coupling agent (consisting of a first silane coupling agent and a second silane coupling agent) were mixed until uniform at a stirring speed of 1500 rpm to obtain a uniform liquid A, Wherein, the first silane coupling agent is CH 2 (O)CHCH 2 O(CH 2 ) 3 Si(OC 2 H 5 ) 3 , purchased from Hubei Debang Chemical New Material Co., Ltd., brand DB-563, 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 3.7:1.

[0070] All the homogeneous liquid A and 1 part by weight of water-soluble silicate (potassium silicate, purchased from Baoding Runfeng Industrial Co., Ltd.) were mixed until homogeneous at a stirring speed of 1500 rpm to obtain a homogeneous liquid B.

[0071] The entire homogeneous liquid B and 0.5 parts by weight of ...

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Abstract

The invention provides a preparation method of an anti-rust paint, which comprises the steps of uniformly mixing water, a silane coupling agent, a water-soluble silicate, an accelerator, a silicon oxide filler and a water-soluble film-forming resin in sequence. The present invention also provides the anti-rust coating prepared according to the above-mentioned preparation method and the application of the above-mentioned anti-rust coating in the preparation of metal materials. The present invention also provides a hot-dip metal material, which comprises a hot-dip metal substrate and a coating attached to the hot-dip metal substrate, and the coating is an anti-rust coating as described above. cured product. The corrosion resistance of the protective film formed by the anti-rust paint provided by the invention is very good. In addition, the anti-rust paint 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 the preparation is completed.

Description

technical field [0001] The invention relates to the field of metal protection, in particular to a preparation method of an anti-rust coating, an anti-rust coating obtained by the preparation method, an application of the anti-rust 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-rust paint will be coated on the surface of the hot-dip metal materials to form a protective film. Therefore, the performance of anti-rust 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-rust coating, 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 sol, wherein the water-solub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D125/14C09D163/00C09D175/04C09D133/04C09D133/00C09D127/12C09D7/12C09D5/08B32B15/08
Inventor 许哲锋陈永徐权张爱萍汤佩林周一林
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP