Sealing agent for corrosion resistance of zinc-plated spring and preparation method thereof

A sealant and anti-corrosion technology, used in anti-corrosion coatings, coatings, polyurea/polyurethane coatings, etc. The effect is not obvious, etc., to achieve the effect of good protection effect, stable and uniform treatment effect, and smooth and uniform appearance of the film layer.

Inactive Publication Date: 2016-10-26
ANHUI HONGQIAO METAL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, zinc itself is an amphoteric metal, neither acid nor alkali resistant, and it is easy to form alkaline zinc carbonate corrosion products in the atmosphere, resulting in white spots, white ash and even white hairs.
[0003] As an improvement, sealing agents are generally used in spring production technology as post-treatment agents for spring coating, phosphating, and oxidation processes to improve the protective performance of spring surfaces, but the effect of sealing agents currently used is not obvious. The coating of sealing agents The appearance of the layer is uneven, the corrosion resistance is poor, and the adhesion between the wear-resistant coating and the substrate is relatively poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of galvanized spring anti-corrosion sealing agent, is made up of the raw material of following weight part:

[0029] Water-based polyurethane: 8 parts;

[0030] Cationic polyacrylamide: 8 parts;

[0031] Corrosion inhibitor: 6 parts;

[0032] Silane coupling agent: 0.3 parts;

[0033] Magnesium stearate: 2 parts;

[0034] Diethanolamide: 0.4 parts;

[0035] Polyether silicone surfactant: 0.3 part;

[0036] Sodium carboxymethylcellulose: 0.5 part;

[0037] February dibutyltin silicate: 0.5 part;

[0038] Fluorine-containing acrylate copolymer: 1 part;

[0039] Polyethylene glycol: 3 parts;

[0040] Deionized water: 100 parts.

[0041] Its preparation method comprises the following steps:

[0042] (1) Measure each raw material respectively according to parts by weight;

[0043] (2) Dissolving the corrosion inhibitor and organic solvent in deionized water accounting for 80% of the total amount, adding functional additives while stirring until all substanc...

Embodiment 2

[0046] A kind of galvanized spring anti-corrosion sealing agent, is made up of the raw material of following weight part:

[0047] Water-based polyurethane: 10 parts

[0048] Polyvinylpyrrolidone: 8 parts;

[0049] Corrosion inhibitor: 5 parts;

[0050] Silane coupling agent: 0.3 parts;

[0051] Magnesium stearate: 2 parts;

[0052] Diethanolamide: 1 part;

[0053] Polyether silicone surfactant: 0.5 part;

[0054] Sodium carboxymethyl cellulose: 1 part;

[0055] February dibutyltin silicate: 0.5 parts;

[0056] Fluorine-containing acrylate copolymer: 0.7 parts;

[0057] 1,2-propanediol: 2 parts;

[0058] Deionized water: 100 parts.

[0059] Its preparation method is with embodiment 1.

Embodiment 3

[0061] A sealant for anti-corrosion of galvanized springs, consisting of the following raw materials in parts by weight: cationic polyacrylamide: 7 parts;

[0062] Polyvinylpyrrolidone: 5 parts;

[0063] Corrosion inhibitor: 10 parts;

[0064] Silane coupling agent: 0.2 parts;

[0065] Magnesium stearate: 1.5 parts;

[0066] Diethanolamide: 0.5 parts;

[0067] Polyether silicone surfactant: 0.1 part;

[0068] Sodium carboxymethyl cellulose: 1 part;

[0069] February dibutyltin silicate: 0.3 parts;

[0070] Fluorine-containing acrylate copolymer: 0.4 parts;

[0071] Polyethylene glycol: 4 parts;

[0072] Deionized water: 100 parts.

[0073] Its preparation method is with embodiment 1.

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PUM

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Abstract

The invention relates to the technical field of zinc-plated surface treatment and particularly relates to a sealing agent for corrosion resistance of zinc-plated springs and a preparation method thereof. The sealing agent comprises, by weight, 10-18 parts of a film-forming agent, 5-12 parts of a corrosion inhibitor, 3-6 parts of a functional additive, 2-5 parts of an organic solvent and 100 parts of deionized water. The sealing agent has good wetting and permeable performances and has strong binding force between a film layer and a base body. The sealing agent can form a film layer being flat and uniform in appearance and being free of pores and bubbles, and is good in corrosion resistant performance.

Description

technical field [0001] The invention relates to the technical field of galvanized surface treatment, in particular to a sealant for anti-corrosion of galvanized springs and a preparation method thereof. Background technique [0002] Springs are extremely susceptible to corrosion. Therefore, during the production and processing of springs, hot-dip galvanizing is usually required on the surface. As the main anti-corrosion coating for steel parts, galvanizing ranks first in the amount of electroplating processing. The principle of galvanized anti-corrosion is that the galvanized layer on the spring is an anodic coating. When electrochemical corrosion occurs due to moisture, the zinc corrodes first to protect the spring base. However, zinc itself is an amphoteric metal, neither acid nor alkali resistant, and it is easy to generate alkaline zinc carbonate corrosion products in the atmosphere, resulting in white spots, white ash and even white hair. [0003] As an improvement, se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/26C09D139/06C09D5/08C09D7/12
CPCC09D175/04C08L2205/035C09D5/08C09D133/26C08L33/26C08L1/286C08L33/16C08K5/00C08K5/098C08K5/20C08K5/57C08L39/06
Inventor 余昌国戚利军
Owner ANHUI HONGQIAO METAL MFG
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