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Aqueous zinc plating sealing agent and preparation method thereof

A sealing agent, water-based technology, applied in the field of water-based galvanized sealing agent and its preparation, can solve the problems of inhomogeneity and discoloration, corrosion resistance, uneven anti-corrosion coating, weak adhesion, etc., to maintain chemical balance, improve Adhesion and weather resistance, effect of delaying oxidation process

Inactive Publication Date: 2018-07-13
ANHUI KAILIN ADVANCED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of unevenness, inhomogeneity, discoloration, weak corrosion resistance and weak adhesion in the anti-corrosion coating obtained by the existing water-based galvanized sealant, the purpose of the present invention is to provide a water-based galvanized sealer and the preparation method thereof, the anticorrosion coating obtained by the prepared water-based galvanizing sealant has the advantages of smoothness, uniformity, no discoloration, strong corrosion resistance and strong adhesion

Method used

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  • Aqueous zinc plating sealing agent and preparation method thereof
  • Aqueous zinc plating sealing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A water-based galvanized sealant, including the following raw materials: 30kg sodium silicate, 6kg polymethylacrylate, 3kg defoamer, 1kg coupling agent, 3kg phosphite antioxidant, 10kg sodium nitrite, fat Alcohol polyoxyethylene ether 3kg, film forming agent 4kg, stabilizer 1kg and water 100kg.

[0031] The defoamer is a mixture of emulsified silicone oil, polyoxyethylene polyoxypropanolamine ether, polyoxypropylene glyceryl ether and polydimethylsiloxane.

[0032] The coupling agent is a mixture of silane coupling agent, titanate coupling agent and zirconium coupling agent.

[0033] The phosphite antioxidant is bis(2,4-dicumylphenyl)pentaerythritol diphosphite.

[0034] The film former is a mixture of waterborne polyurethane, cationic polyacrylamide and polyvinylpyrrolidone.

[0035] The stabilizer is a mixture of sodium dihydrogen phosphate, disodium hydrogen phosphate and sodium phosphate.

[0036] The water-based galvanized sealer also includes a toughening agent...

Embodiment 2

[0046] A water-based galvanized sealant, including the following raw materials: 40kg sodium silicate, 10kg polymethylacrylate, 7kg defoamer, 5kg coupling agent, 5kg phosphite antioxidant, 14kg sodium nitrite, fat Alcohol polyoxyethylene ether 9kg, film forming agent 6kg, stabilizer 3kg and water 100kg.

[0047] The defoamer is emulsified silicone oil.

[0048] The coupling agent is a silane coupling agent.

[0049] The phosphite antioxidant is distearyl pentaerythritol diphosphite.

[0050] The film former is waterborne polyurethane.

[0051] The stabilizer is sodium dihydrogen phosphate.

[0052] The water-based galvanized sealer also includes a toughening agent weighing 3 kg.

[0053] The toughening agent is liquid silicone rubber.

[0054] A preparation method of water-based galvanized sealant, comprising the following steps:

[0055] (1) take raw material according to the weight of water-based galvanized sealing agent raw material;

[0056] (2) Add sodium silicate i...

Embodiment 3

[0062] A water-based galvanized sealant, including the following raw materials: 35kg sodium silicate, 8kg polymethylacrylate, 5kg defoamer, 3kg coupling agent, 4kg phosphite antioxidant, 12kg sodium nitrite, fat Alcohol polyoxyethylene ether 6kg, film forming agent 5kg, stabilizer 2kg and water 100kg.

[0063] The antifoaming agent is polyoxypropylene glyceryl ether.

[0064] The coupling agent is a titanate coupling agent.

[0065] The phosphite antioxidant is tris(nonylphenyl)phosphite.

[0066] The film former is polyvinylpyrrolidone.

[0067] The stabilizer is sodium phosphate.

[0068] The water-based galvanized sealer also includes a toughening agent weighing 2 kg.

[0069] The toughening agent is polysulfide rubber.

[0070] A preparation method of water-based galvanized sealant, comprising the following steps:

[0071] (1) take raw material according to the weight of water-based galvanized sealing agent raw material;

[0072] (2) Add sodium silicate into 80kg of w...

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Abstract

The invention provides an aqueous zinc plating sealing agent and a preparation method thereof, and relates to the technical field of zinc plating surface treatment, wherein the aqueous zinc plating sealing agent comprises the following raw materials by weight: 30-40 parts of sodium silicate, 6-10 parts of methyl polyacrylate, 3-7 parts of a defoamer, 1-5 parts of a coupling agent, 3-5 parts of a phosphite-based antioxidant, 10-14 parts of sodium nitrite, 3-9 parts of fatty alcohol polyoxyethylene ether, 4-6 parts of a film forming agent, 1-3 parts of a stabilizer, and 100 parts of water. The preparation method comprises: (1) weighing the raw materials; (2) preparing a solution a; (3) preparing a solution b; (4) preparing a solution c; (5) preparing a solution d; and (6) mixing the solutiona and the solution d. According to the present invention, the anticorrosive coating prepared by using the aqueous zinc plating sealing agent has advantages of smoothness, uniformity, no color change,strong corrosion and strong adhesion.

Description

technical field [0001] The invention belongs to the technical field of galvanized surface treatment, and in particular relates to a water-based galvanized sealant and a preparation method thereof. Background technique [0002] Corrosion is one of the main reasons for the damage of steel products, and steel is the main component material of many mechanical spare parts. Galvanizing the surface of steel is a common method to prevent corrosion, but due to the active chemical properties of zinc, it is easy to be corroded, resulting in white The loose corrosion product "white rust", so it is usually necessary to passivate the galvanized layer, and then do sealing treatment after passivation. However, most of the current sealing agents are organic solvent sealing agents, and the adhesion of the coating system is small. Corrosion resistance is poor; moreover, the coating appearance of sealing agent is uneven, easy to change color, and economic benefit is poor. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D5/08C09D7/65C09D7/63C09D7/48C25D5/48C25D3/22C23C2/26C23C2/06
CPCC09D1/04C09D5/08C23C2/06C23C2/26C25D3/22C25D5/48
Inventor 王和山王厚国王和东黄义朝黄开仁施保兵李洪陈发东殷芳荣
Owner ANHUI KAILIN ADVANCED MATERIAL CO LTD
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