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Metal protective coating and hot galvanizing metal material as well as hot-dip aluminium-zinc metal material

A metal protective coating and hot-dip galvanizing technology, which is applied in the direction of anti-corrosion coatings, polyester coatings, metal layered products, etc., can solve the problems of poor corrosion resistance, water resistance, heat resistance and fingerprint resistance of the protective film, and achieve Excellent heat resistance and excellent fingerprint resistance

Active Publication Date: 2013-04-03
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 defects of poor corrosion resistance, water resistance, heat resistance and fingerprint resistance of the protective film formed by the existing metal protective coating, and to provide a protective film capable of forming corrosion resistance, water resistance and heat resistance. Protective coating for metal with a protective film with good anti-fingerprint and anti-fingerprint

Method used

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  • Metal protective coating and hot galvanizing metal material as well as hot-dip aluminium-zinc metal material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1 part by weight of water-soluble silicate (Na 2 SiO 3 ), 0.6 parts by weight of accelerator (pyrrolidone), 1.6 parts by weight of silane coupling agent (the first silane derivative (2-(3,4-epoxycyclohexyl) ethyl trimethoxysilane, purchased from Hubei De Bang Fine Chemical Co., Ltd.) and the second silane derivative (γ-aminopropyltriethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) mixed at a weight ratio of 1:0.25), 0.72 parts by weight of silicon oxide Filler (nano silica powder, purchased from U.S. GE company, RNS-E, average particle size 20nm), 2.4 parts by weight (in terms of solids) of water-soluble film-forming resin (water-soluble silicon acrylic film-forming resin (Qingdao Xingguo Paint The company's TC-05 type silicone acrylic emulsion, solid content is 48% by weight)) and 28 parts by weight of water, mixed until uniform at a stirring speed of 1500 rpm, to obtain the metal protective coating of this embodiment.

Embodiment 2

[0042] With 1 weight part of water-soluble silicate (K 2 SiO 3 ), 0.5 parts by weight of accelerator (N-methylpyrrolidone), 1.4 parts by weight of silane coupling agent (the first silane derivative (2-(3,4-epoxycyclohexyl) ethyltriethoxysilane , purchased from Hubei Debang Fine Chemical Co., Ltd.) and the second silane derivative (γ-glycidyl etheroxypropyl trimethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) by mixing at a weight ratio of 1:0.4) , 0.6 parts by weight of silicon oxide filler (nano silicon dioxide, purchased from U.S. GE company, RNS-E, average particle size 20nm), 2.1 parts by weight (in solid terms) of water-soluble film-forming resin (water-soluble acrylic acid film-forming Resin (A-3418 acrylic resin purchased from Guangzhou Oupeng Chemical Co., Ltd.)) and 25 parts by weight of water were mixed until uniform at a stirring speed of 1500 rpm to obtain the metal protective coating of this embodiment.

Embodiment 3

[0044] 1 part by weight of water-soluble silicate (Na 2 SiO 3 ), 0.7 parts by weight of accelerator (N-ethylpyrrolidone), 1.8 parts by weight of silane coupling agent (the first silane derivative (2-(3,4-epoxycyclohexyl) propyltrimethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) and the second silane derivative (γ-glycidyl etheroxypropyl trimethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) by mixing at a weight ratio of 1:0.1), 0.85 parts by weight of silica filler (30% by weight of silica sol, usage in solids), 2.7 parts by weight (in solids) of water-soluble film-forming resin (water-soluble polyurethane film-forming resin (purchased from Fujian Jinjiang Jianhua Company) , Brand 812 polyurethane resin)) and 40 parts by weight of water were mixed until uniform at a stirring speed of 1500 rpm to obtain the metal protective coating of this embodiment.

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Abstract

The invention provides metal protective coating. The metal protective coating is obtained by uniformly mixing raw material mixture, wherein the raw material mixture contains water soluble silicate, a promoter, a silane coupling agent, silicon oxide filler, water soluble film forming resin and water; the promoter is at least one of pyrrolidone, N-methyl pyrrolidone, and N-ethyl pyrrolidone; and the silane coupling agent contains first silane derivatives shown in formula (1) described in the specification, wherein R1, R2 and R3 are methoxyl or ethoxyl respectively, and n is an integral number ranging from 1 to 4. The invention also provides a hot galvanizing metal material and a hot-dip aluminium-zinc metal material. A protective film formed by the metal protective coating provided by the invention has excellent corrosion resistance, water resistance, heat resistance and fingerprint resistance. Formula (1) is described in the specification.

Description

technical field [0001] The invention relates to the field of metal protection, in particular to a metal protection paint, a hot-dip galvanized metal material and a hot-dip galvanized 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 metal protective paint will be coated on the surface of the hot-dip metal materials to form a protective film. Therefore, the performance of metal protective 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 a metal protective 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 silica sol, wherein the water-soluble The organic compound is a mixture of alcohol...

Claims

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Application Information

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IPC IPC(8): C09D201/00C09D7/12C09D5/08C09D167/00C09D125/14C09D163/00C09D175/04C09D133/04C09D133/00C09D127/12B32B15/08
Inventor 许哲峰梅东生郭太雄陈永徐权娄燕周一林
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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