Anti-corrosion paint for steel with polyaniline

A technology of anti-corrosion coatings and polyaniline, which is applied in the direction of anti-corrosion coatings, polyurea/polyurethane coatings, epoxy resin coatings, etc., can solve the problems of unsustainable anti-corrosion effects, application restrictions, environmental pollution, etc., and achieve excellent anti-corrosion effects Effect

Inactive Publication Date: 2005-07-13
朴进雨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned existing anti-corrosion coatings have problems such as environmental pollution and unsustainable anti-corrosion effect.
[0008] Meanwhile, it is known that polyaniline is a difficult material to handle because it is difficult to dissolve and disperse, so its application has many limitations although it has excellent properties.
Recent technological developments have been able to disperse polyaniline into the matrix resin, so that it can be applied in different fields and its products can be developed, but there is no report on its application in anti-corrosion coatings

Method used

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  • Anti-corrosion paint for steel with polyaniline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1-1. Preparation of paint for primer coating

[0048] 60wt% of thermoplastic polyurethane resin (solid content 50%), 7wt% of reduced polyaniline (ES), 0.5wt% of Bentone#34 (RHEOX Co.), 0.5wt% of Anti-Terra-U (BYK Chemi ) and 21 wt% of a mixed solvent containing cellosolve acetate, methyl ethyl ketone and ethyl cellosolve, stirred for 30 minutes and ground with an attritor to make the particle size exceed 5NS (North standard grade) units. Subsequently, 0.5wt% BYK-006 (BYK Chemie) and BYK-410 (BYK Chemie) and 10wt% mixed solvent were added to the above mixture and stirred for 30 minutes to obtain the primer anticorrosion coating of the present invention.

[0049] 1-2. Preparation of paint for surface coating

[0050] The urethane acrylate resin (solid content 50%) of 55wt%, the TiO of 20wt% 2 R-902 (Dupont.Co), 0.3wt% of Benton#34 (RHEOX Co.) and 0.2wt% of Anti-Terra-U (BYK Chemie) were mixed, stirred for 30 minutes and ground with an attritor to achieve a particle siz...

Embodiment 2

[0061] The reduced polyaniline was replaced with oxidized polyaniline, and 10 wt% of the solvent was replaced with talc as a filler. In addition, the anti-corrosion coating was prepared according to the method in Example 1. The physical properties of the resulting coatings were evaluated and the results are shown in Tables 1 and 2.

Embodiment 3

[0063] With 25wt% base resin containing cellulose acetate-propionate and epoxy resin (mixing ratio 4:1), 7wt% reduced polyaniline (ES), 0.3wt% Bentone#34 (RHEOX Co.), 0.2 wt% of Anti-Terra-U (BYK Chemi) and 67.5 wt% of a mixed solvent containing methyl ethyl ketone, ethyl cellosolve and butyl acetate were used to prepare anti-corrosion coatings for primer coating. Prepare the coating that is used for top coat and test sample with the method for embodiment 1, and the test result of physical characteristic is shown in table 1 and table 2.

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Abstract

The invention discloses an anticorrosion coating which uses polyaniline as an anticorrosion pigment for preventing corrosion of steel materials. The anti-corrosion coating has excellent and long-lasting anti-corrosion effect, high durability and outstanding coating characteristics for controlling the anti-corrosion effect, and does not use metals that cause environmental pollution as anti-corrosion pigments. In particular, the top coat paint is used to enhance the protection and anti-corrosion effect of the primer coat paint in the anti-corrosion paint. The top coat paint includes 40-89wt% of matrix resin, 5-54wt% of coloring pigment, 1-50wt% of additives and 5-54wt% of mixed solvent, and the said bottom coat paint includes 3-49wt% The polyaniline, 40-86wt% matrix resin, 1-47wt% additive and 10-56wt% mixed solvent. The anti-corrosion paint has the advantages of maintaining excellent anti-corrosion effect for a long time without causing environmental problems.

Description

technical field [0001] The invention relates to an anticorrosion paint which adopts polyaniline as an anticorrosion pigment to prevent corrosion of metal materials, especially steel materials. More particularly, the present invention relates to an anti-corrosion paint that can provide long-lasting excellent anti-corrosion effects without containing metals that cause environmental pollution. Background technique [0002] It is well known in the art that corrosion of metallic materials including steel materials is a serious problem in various industrial fields. Corrosion of steel materials has brought huge losses to property and industry, and half of steel production is consumed in replacing corroded steel structures every year. Various anticorrosion coatings have been used to prevent corrosion of metal materials, especially steel materials. [0003] The above-mentioned anti-corrosion paint contains metals and organic polymeric resins / inorganic resins used as general anti-co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/02C09D5/08C09D101/14C09D163/00C09D175/04
CPCC08G2150/90C08L79/02C09D5/082C09D101/14C09D163/00C09D175/04Y10T428/31511Y10T428/31515Y10T428/31522Y10T428/31529Y10T428/31551Y10T428/31703Y10T428/31938C08L2666/20C09D5/08
Inventor 河载穆黄省南朴进雨崔宇镇宋翰燮金成吉朴钟九李龙熙朴镕石朴洪水
Owner 朴进雨
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