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Conductive polyaniline solvent-free anticorrosive coating not containing anti-rust pigments

A technology of conductive polyaniline and anti-corrosion coatings, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of easy whitening of the paint film, toxicity, and brittle paint film, so as to avoid the suspicion of heavy metals and the scope of application wide effect

Inactive Publication Date: 2013-01-16
SHANGHAI DATONG TABERNACLE NEW ENERGY SAVING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of coating is cured very quickly, there is toxicity, and the cured paint film is relatively brittle, with poor flexibility and impact, and the problems such as easy whitening of the paint film under wet conditions. Therefore, the present invention adopts modified phenalkamine to replace

Method used

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  • Conductive polyaniline solvent-free anticorrosive coating not containing anti-rust pigments
  • Conductive polyaniline solvent-free anticorrosive coating not containing anti-rust pigments
  • Conductive polyaniline solvent-free anticorrosive coating not containing anti-rust pigments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0028] Dissolve the conductive intrinsic polyaniline in the parts by weight of Table 1 in the cashew varnish modified phenalkamine shown in Table 1, stir it with an electromagnetic stirrer for 2 hours to dissolve it, and then filter it with a glass funnel to prepare Mixed curing agent, stand-by, take by weight the epoxy resin of the weight part of table 2, add the diluent of the weight part shown in table 2, silicone oil, carry out electromagnetic stirring 2 hours, make it evenly mix, then add above-mentioned table 2 The mixed solidifying agent of two shown weight parts, stir (2 hours) with electromagnetic stirrer and stand still for 1 hour, the coating that this is made is with paintbrush or spray on No. 45 steel plates after the treatment, with this preparation Coating is applied on the treated steel plate with a paintbrush or spray gun to keep its thickness at 15-250 microns. Curing at room temperature for 8-24 hours to obtain a uniform, transparent and tough dark blue coat...

Embodiment 5

[0034]

[0035] Conductive polyaniline solvent-free anti-corrosion coating without anti-rust pigment, the coating includes the following components and content by weight: mixed curing agent 30kg, epoxy resin 10kg, diluent 10kg, defoamer 0.3kg, wherein, mixed curing The agent is obtained by mixing intrinsically conductive polyaniline and curing agent at a weight ratio of 10:90.

[0036] The molecular formula of intrinsic conductive polyaniline is:

[0037]

[0038] where y is 0 and R1 is CH 6 O, n is 50, the curing agent is cashew varnish modified phenalkamine, the epoxy resin is bisphenol A type epoxy resin, the diluent is glycidyl ether of isopropanol, and the defoaming agent is fatty acid alkyl ester of C3.

[0039] When synthesizing, take the polyaniline in the intrinsic state and add it to the modified phenalkamine under the stirring of an electromagnetic stirrer to dissolve, stir for 2-4 hours and filter to make a mixed curing agent;

[0040] Weigh the epoxy resin...

Embodiment 6

[0043] Conductive polyaniline solvent-free anti-corrosion coating without anti-rust pigment, the coating includes the following components and content by weight: mixed curing agent 35kg, epoxy resin 15kg, diluent 30kg, defoamer 1kg, wherein, mixed curing agent It is obtained by mixing intrinsically conductive polyaniline and curing agent at a weight ratio of 15:85.

[0044] The molecular formula of intrinsic conductive polyaniline is:

[0045]

[0046] Where y is 0 and R1 is C 3 h 8 O, n is 80. The curing agent is cashew varnish modified phenalkamine, the epoxy resin is bisphenol F epoxy resin, the diluent is polypropylene glycol glycidyl ether, and the defoaming agent is oligomeric polyoxyethylene.

[0047] When synthesizing, take the polyaniline in the intrinsic state and add it to the modified phenalkamine under the stirring of an electromagnetic stirrer to dissolve, stir for 2-4 hours and filter to make a mixed curing agent;

[0048] Weigh the epoxy resin according ...

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Abstract

The invention relates to a conductive polyaniline solvent-free anticorrosive coating not containing any anti-rust pigments. The coating comprises the following components in part by weight: 30 to 40 parts of mixed curing agent, 10 to 20 parts of epoxy resin, 10 to 55 parts of diluent and 0.3 to 3 parts of defoaming agent. Compared with the prior art, the coating does not contain any anti-rust pigments, avoids environment polluting heavy metals, is wide in application range, can be used in acid environments, and does not contain environmentally harmful phthalate plasticizers.

Description

technical field [0001] The invention relates to a conductive polyaniline anti-corrosion coating, in particular to a conductive polyaniline solvent-free anti-corrosion coating without anti-rust pigment. Background technique [0002] Metal corrosion has always been a problem that puzzles the national economic construction. The global annual metal corrosion loss is as high as 20-40% of the annual metal output, which is twice the sum of natural disasters such as earthquakes, floods, and typhoons. One of the most economical, convenient and effective means of metal corrosion, the most important anti-rust primer commonly used in heavy anti-corrosion coatings is zinc-rich epoxy and zinc-rich inorganic, zinc is a heavy metal harmful to aquatic organisms EU regulations have The use of zinc is restricted, so it is an inevitable development trend to find new pollution-free anti-corrosion coatings. [0003] Regardless of epoxy zinc-rich primer or inorganic zinc-rich primer, its anti-cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D179/02C09D5/08
Inventor 杨志英
Owner SHANGHAI DATONG TABERNACLE NEW ENERGY SAVING MATERIALS CO LTD
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