Metal protective coating and hot galvanizing metal material and hot dip aluminum-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: 2013-04-10
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 and hot dip aluminum-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 (thiourea), 1.6 parts by weight of silane coupling agent (the first silane derivative (2-(3,4-epoxycyclohexyl) ethyltrimethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) and the second silane derivative (γ-aminopropyltriethoxysilane, purchased from Hubei Debang Fine Chemical Co., Ltd.) obtained by mixing at a weight ratio of 1:0.25), 0.72 parts by weight of oxidation Silicon filler (nano silica powder, purchased from U.S. GE company, RNS-E, average particle size 20nm), 2.4 parts by weight (in solid terms) of water-soluble film-forming resin (water-soluble silicon acrylic film-forming resin (Qingdao Xingguo Paint company TC-05 silicone acrylic emulsion, the 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 (urea), 1.4 parts by weight of silane coupling agent (the first silane derivative (2-(3,4-epoxycyclohexyl) ethyl triethoxysilane, 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.) in a weight ratio of 1:0.4 to obtain), 0.6 parts by weight Silica filler (nano silicon dioxide, available 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 film-forming resin (available from Acrylic resin (A-3418) of 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 (thiourea and urea are obtained by mixing in a weight ratio of 1:1), 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 weight Ratio 1: 0.1 mixed to obtain), 0.85 parts by weight of silica filler (30% by weight of colloidal silica, 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, which is obtained by uniformly mixing a raw material mixture. The raw material mixture contains water soluble silicate, an accelerant, a silane coupling agent, a silicon oxide filler, a water soluble film-forming resin and water; the accelerant is thiourea and / or urea; and the silane coupling agent contains a first silane derivative represented by the formula (1), wherein R1, R2 and R3 are respectively either a methoxy group or an ethyoxyl group, and n is an integer from 1 to 4. The invention further provides a hot galvanizing metal material and a hot dip aluminum-zinc metal material. The protective film prepared by the metal protective coating provided by the invention is excellent in corrosion resistance, water resistance, heat resistance and fingerprint resistance. Formula (1).

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