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Seawater corrosion-resistant paint

A seawater and paint-resistant technology, applied in the field of paint, can solve problems such as cracks and metal fractures, and achieve the effects of reducing permeability, reducing transmittance, and excellent seawater corrosion resistance

Inactive Publication Date: 2013-01-16
WUJIANG HUACHENG COMPOSITE MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the action of tensile stress on the metal, cracks will appear in the area where the passivation film is destroyed, which will become the anode area of ​​the corrosion battery. Continuous electrochemical corrosion may eventually lead to the fracture of the metal.

Method used

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Examples

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Embodiment Construction

[0023] Prepare the components according to the weight ratio shown in Table 1.

[0024] Table 1 The weight ratio of Example 1 to Example 3

[0025]

[0026] The molecular weight of the above-mentioned polyvinyl acetate is 200,000 to 300,000.

[0027] The above-mentioned defoaming agent is tributyl phosphate.

[0028] The aforementioned coupling agent is silane coupling agent TM-30.

[0029] The epoxy resin is epoxy resin E-42.

[0030] The curing agent adopts phenolic hexamethylene diamine.

[0031] The solvent is ethyl acetate.

[0032] The preparation method is:

[0033] S1: Take chloroprene rubber, polytetrafluoroethylene, polyvinyl acetate, add half the weight of the solvent, and stir evenly;

[0034] S2: Add epoxy resin, petroleum resin, coupling agent, defoamer, and silica sol to the mixture obtained in S1, and stir it evenly at a speed of 600-1000 rpm;

[0035] S3: Add cerium nitrate, montmorillonite, red iron oxide, zinc phosphate, barium sulfate, aluminum tripolyphosphate, titanium ox...

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Abstract

The invention provides seawater corrosion-resistant paint which comprises component A and component B. The component A comprises the following materials by weight: 20-30 parts of epoxy resin, 10-20 parts of petroleum resin, 5-10 parts of chloroprene rubber, 3-6 parts of polytetrafluoroethylene, 2-8 parts of polyvinyl acetate, 2-4 parts of a coupling agent, 1-2 parts of a defoaming agent, 5-8 parts of silica sol, 1-2 parts of cerium nitrate, 1-2 parts of montmorillonite, 1-2 parts of iron red, 4-6 parts of zinc phosphate, 2-3 parts of barium sulfate, 3-4 parts of aluminum tripolyphosphate, 1-2 parts of titanium oxide, 4-7 parts of zinc oxide, 25-35 parts of and solvent. The component B comprises the following materials by weight: 20-35 parts of a curing agent, and 15-20 parts of butanol. The inventive paint has excellent seawater corrosion resistance, salt fog resistance above 2,000 hr, 10% NaOH solution resistance above 30 days, and artificial seawater resistance above 4,200 hr.

Description

Technical field [0001] The invention provides a seawater corrosion-resistant paint, which belongs to the technical field of paint. Background technique [0002] The ocean can provide mankind with material resources, space resources and energy for survival and development. my country is a large maritime country with a coastline of more than 18,000 kilometers, more than 6,500 coastal islands, and a maritime area under its jurisdiction of more than 3 million square kilometers. my country has abundant marine resources and a thriving marine industry, but the marine environment is very harsh and highly corrosive. Therefore, marine corrosion and protection are issues that urgently need to be resolved in my country’s economic development. [0003] Most ships use metal shells. In the marine environment, metal is affected by seawater temperature, seawater content, ocean atmospheric temperature, and ocean atmospheric humidity. The degree of corrosion is very serious. Corrosion not only reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D157/02C09D111/00C09D127/18C09D131/04C09D7/12C09D5/08
Inventor 肖伟荣
Owner WUJIANG HUACHENG COMPOSITE MATERIAL SCI & TECH
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