CN1175075C - Process for prparing polyaniline corrosion-resistant paint - Google Patents
Process for prparing polyaniline corrosion-resistant paint Download PDFInfo
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- CN1175075C CN1175075C CNB011381531A CN01138153A CN1175075C CN 1175075 C CN1175075 C CN 1175075C CN B011381531 A CNB011381531 A CN B011381531A CN 01138153 A CN01138153 A CN 01138153A CN 1175075 C CN1175075 C CN 1175075C
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Abstract
The present invention discloses a preparing process of a polyaniline anticorrosion coating material, which comprises: epoxy resin, polyaniline and a diluting agent are uniformly mixed and ground and are mixed with phenolic aldehyde amine, polyamide and a diluting agent according to the ratio of (10 to 20): 1; the coating material is coated on a metal surface and is solidified at room temperature. A compact thin film can be generated on a steel surface by adopting the anticorrosion coating material of the present invention; thereby, the coating material has the advantages of steel corrosion potential improvement, corrosion current reduction and steel corrosion prevention and deceleration. The obtained coating layer having high hardness and superior abrasion resistance can prevent the metal from being corroded by generating a passive film after the coating layer is scratched.
Description
One, technical field
The present invention relates to a kind of protective system, particularly a kind of preparation technology of polyaniline anti-corrosive paint.
Two, background technology
Metallic corrosion can bring tremendous loss to national economy, and it destroys example and spreads all over the occasion that all use metal.According to statistics, annual hardware and the material of scrapping owing to corrosion is equivalent to 1/3 of metal output, and its waste to natural resources is quite huge.In order to prevent and to slow down corrosion of metal, people adopt coating to contain inhibiter organic coating and zinciferous organic or inorganic coatings such as heavy metal such as chromium, lead, molybdenum more.Though these class methods are effective relatively, and are huge to environmental hazard, in case and coating have slightly and to scratch, its preservative effect is had a greatly reduced quality.Therefore, people are also in the better anticorrosion approach of expectation.Recently the relative traditional coating of the polyaniline anti-corrosive paint of Chu Xianing is a huge advance made.Currently used corrosion protection coating method has following several: 1, the PANI coating of electrochemical deposition, and this method is difficult to use in bigger metal parts, thereby application is limited; 2, the common solution by PANI and traditional polymkeric substance forms the blend coating, and this coating can not need finish paint and use separately, but still exists not enough.Mainly be: 1. PANI dissolution rate in ordinary organic solvents is extremely low, even insoluble, at other high boiling solvent such as N-Methyl pyrrolidone (NMP) though certain dissolution rate, limited by practical are arranged; 2. the boiling point of these solvents all than higher, has detrimentally affect to coating quality; 3. these solvents are relatively more expensive mostly, and toxicity is bigger, and application is restricted.Zhang Jinyong etc. adopt solvent and the curing agent for epoxy resin of polyamine as polyaniline, obtained polyaniline anti-corrosive paint, but the solvability of polyaniline in polyamine is limited, most of polyaniline is filtered as insolubles, have only a spot of soluble part to be utilized, the price of polyaniline is very high in addition, so this method is very uneconomical.
Three, summary of the invention
The objective of the invention is to obey the shortcoming of above-mentioned prior art, the polyaniline anti-corrosive paint that provide a kind of cheap, nontoxicity, can conveniently use.
The technical solution used in the present invention is for achieving the above object:
1) A component preparation
A, be that 25%～40% bisphenol A type epoxy resin and content are that nonconducting polyaniline in eigenstate powder, the content of diameter 10～1000nm of 1%～20% is that 20%～55% dimethylbenzene or propyl carbinol or hexone are as mixing diluents with content, add grinding in ball grinder 1～3h, make nonconducting polyaniline in eigenstate powder high dispersing;
B, be that to make filler, content be that to make coupling agent, content be that to make defoamer, content be after 0.5%～2% 202P makes anti-settling agent and mixes, to grind 0.5～2h again for 0.5%～2% methyl-silicone oil for 0.5%～2% KH-560 for 1%～20% 350～800 order active micro silicon powders or 300～500 order red iron oxides with content;
2) B component preparation
With content is that 20%～40% phenolic aldehyde amine, content are that 55%～80% polymeric amide, content are that 0～5% dimethylbenzene or propyl carbinol or hexone mix by electromagnetism or mechanical stirring as thinner;
3) using method of coating
With A component and B component by 10～20: 1 weight ratio mixes, and is coated in pretreated metal surface, and self-vulcanizing gets final product.
Adopt protective system of the present invention to generate linen, the fine and close Fe of one deck on the steel surface
2O
3Film, thus increase substantially the corrosion potential of steel, reduce its corrosion current greatly simultaneously, stop and slowed down the corrosion of medium steel; The gained coating has very high hardness and excellent abrasive, can make bare metal avoid corrosion by generating passive film after coating is scratched.
Four, embodiment
Embodiment 1, A component preparation: the bisphenol A type epoxy resin with 25%, 20% nonconducting polyaniline in eigenstate powder and 30% dimethylbenzene mix, add grinding in ball grinder 2h, polyaniline ground be the particle of diameter 100nm, and then add 20% 350 purpose active micro silicon powders and make filler, 1% KH-560 and do that coupling agent, 2% methyl-silicone oil are made defoamer, 2% 202P makes anti-settling agent grinding 0.5h;
The preparation of B component:
Phenolic aldehyde amine with 20%, 80% polymeric amide mechanical stirring mix;
The using method of coating:
A component and the B component weight ratio by 10: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
Embodiment 2, A component preparation: the bisphenol A type epoxy resin with 40%, 1% nonconducting polyaniline in eigenstate powder mix with 55% propyl carbinol, add grinding in ball grinder 3h, polyaniline ground be the particle about diameter 100nm, and then add 1% 400 purpose active micro silicon powders and make filler, 2% KH-560 and do that coupling agent, 0.5% methyl-silicone oil are made defoamer, 0.5% 202P makes anti-settling agent and grinds 2h;
The preparation of B component:
Phenolic aldehyde amine with 40%, 55% polymeric amide and 5% hexone mixing machinery stir, and mix;
The using method of coating:
A component and the B component weight ratio by 20: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
Embodiment 3, A component preparation: the bisphenol A type epoxy resin with 30%, 10% nonconducting polyaniline in eigenstate powder and 40% hexone mix, add grinding in ball grinder 2h, polyaniline should be ground be the particle about diameter 100nm, add 15% 800 purpose active micro silicon powders again and make filler, 1% KH-560 and do that coupling agent, 2% methyl-silicone oil are done defoamer, 2% 202P cooks anti-settling agent and grinds 1h;
The preparation of B component:
Phenolic aldehyde amine with 30%, 67% polymeric amide and 3% propyl carbinol hybrid electromagnetic stir;
The using method of coating:
A component and the B component weight ratio by 15: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
Embodiment 4, A component preparation: the bisphenol A type epoxy resin with 40%, 18% nonconducting polyaniline in eigenstate powder and 20% dimethylbenzene mix, add grinding in ball grinder 1.5h, polyaniline ground be the particle about diameter 100nm, add 20% 300 order red iron oxides again and make filler, 0.5% KH-560 and do that coupling agent, 1% methyl-silicone oil are made defoamer, 0.5% 202P makes anti-settling agent and grinds 1.5h;
The preparation of B component:
Phenolic aldehyde amine with 25%, 71% polymeric amide and 4% propyl carbinol hybrid electromagnetic stir;
The using method of coating:
A component and the B component weight ratio by 13: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
Embodiment 5, A component preparation: the bisphenol A type epoxy resin with 35%, 15% nonconducting polyaniline in eigenstate powder and 45% hexone mix, add grinding in ball grinder 1h, polyaniline ground be the particle of diameter 350nm, add 3% 500 order red iron oxides again and make filler, 0.5% KH-560 and do that coupling agent, 0.5% methyl-silicone oil are made defoamer, 1% 202P makes anti-settling agent grinding 2h;
The preparation of B component:
Phenolic aldehyde amine with 38%, 60% polymeric amide and 2% propyl carbinol mixing machinery stir;
The using method of coating:
A component and the B component weight ratio by 18: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
Embodiment 6, A component preparation: the bisphenol A type epoxy resin with 31%, 12% nonconducting polyaniline in eigenstate powder and 35% propyl carbinol mix, add grinding in ball grinder 3h, polyaniline should be ground particle into diameter 1000nm, add 18% 500 order active micro silicon powders again and make filler, 1.3% KH-560 and do that coupling agent, 1.2% methyl-silicone oil are made defoamer, 1.5% 202P makes anti-settling agent and grinds 2h;
The preparation of B component:
Phenolic aldehyde amine with 30%, 66% polymeric amide and 4% hexone mixing machinery stir;
The using method of coating:
A component and the B component weight ratio by 14: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
Embodiment 7, A component preparation: the bisphenol A type epoxy resin with 34%, 7% nonconducting polyaniline in eigenstate powder and 50% dimethylbenzene mix, add grinding in ball grinder 1h, polyaniline ground be the particle about diameter 100nm, add 6% 400 order red iron oxides again and make filler, 0.6% KH-560 and do that coupling agent, 1.4% methyl-silicone oil are made defoamer, 1% 202P makes anti-settling agent and grinds 2h;
The preparation of B component:
Phenolic aldehyde amine with 35%, 63% polymeric amide and 2% hexone mixing machinery stir;
The using method of coating:
A component and the B component weight ratio by 16: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
Claims (8)
1, a kind of preparation technology of polyaniline anti-corrosive paint is characterized in that:
1) A component preparation
A, be that 25%～40% bisphenol A type epoxy resin and content are that nonconducting polyaniline in eigenstate powder, the content of diameter 10～1000nm of 1%～20% is that 20%～55% dimethylbenzene or propyl carbinol or hexone are as mixing diluents with content, add grinding in ball grinder 1～3h, make nonconducting polyaniline in eigenstate powder high dispersing;
B, be that to make filler, content be that to make coupling agent, content be that to make defoamer, content be after 0.5%～2% 202P makes anti-settling agent and mixes, to grind 0.5～2h again for 0.5%～2% methyl-silicone oil for 0.5%～2% KH-560 for 1%～20% 350～800 order active micro silicon powders or 300～500 order red iron oxides with content;
2) B component preparation
With content is that 20%～40% phenolic aldehyde amine, content are that 55%～80% polymeric amide, content are that 0～5% dimethylbenzene or propyl carbinol or hexone mix by electromagnetism or mechanical stirring as thinner;
3) using method of coating
With A component and B component by 10～20: 1 weight ratio mixes, and is coated in pretreated metal surface, and self-vulcanizing gets final product.
2, the preparation technology of polyaniline anti-corrosive paint according to claim 1 is characterized in that:
A component preparation: the bisphenol A type epoxy resin with 25%, 20% nonconducting polyaniline in eigenstate powder and 30% dimethylbenzene mix, add grinding in ball grinder 2h, polyaniline ground be the particle of diameter 100nm, and then add 20% 350 purpose active micro silicon powders and make filler, 1% KH-560 and do that coupling agent, 2% methyl-silicone oil are made defoamer, 2% 202P makes anti-settling agent grinding 0.5h;
B component preparation: the phenolic aldehyde amine with 20%, 80% polymeric amide mechanical stirring mix;
The using method of coating: A component and the B component weight ratio by 10: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
3, the preparation technology of polyaniline anti-corrosive paint according to claim 1 is characterized in that:
A component preparation: the bisphenol A type epoxy resin with 40%, 1% nonconducting polyaniline in eigenstate powder mix with 55% propyl carbinol, add grinding in ball grinder 3h, polyaniline ground be the particle about diameter 100nm, and then add 1% 400 purpose active micro silicon powders and make filler, 2% KH-560 and do that coupling agent, 0.5% methyl-silicone oil are made defoamer, 0.5% 202P makes anti-settling agent and grinds 2h;
B component preparation: the phenolic aldehyde amine with 40%, 55% polymeric amide and 5% hexone mixing machinery stir, and mix;
The using method of coating: A component and the B component weight ratio by 20: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
4, the preparation technology of polyaniline anti-corrosive paint according to claim 1 is characterized in that:
A component preparation: the bisphenol A type epoxy resin with 30%, 10% nonconducting polyaniline in eigenstate powder and 40% hexone mix, add grinding in ball grinder 2h, polyaniline should be ground be the particle about diameter 100nm, add 15% 800 purpose active micro silicon powders again and make filler, 1% KH-560 and do that coupling agent, 2% methyl-silicone oil are done defoamer, 2% 202P cooks anti-settling agent and grinds 1h;
B component preparation: the phenolic aldehyde amine with 30%, 67% polymeric amide and 3% propyl carbinol hybrid electromagnetic stir;
The using method of coating: A component and the B component weight ratio by 15: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
5, the preparation technology of polyaniline anti-corrosive paint according to claim 1 is characterized in that:
A component preparation: the bisphenol A type epoxy resin with 40%, 18% nonconducting polyaniline in eigenstate powder and 20% dimethylbenzene mix, add grinding in ball grinder 1.5h, polyaniline ground be the particle about diameter 100nm, add 20% 300 order red iron oxides again and make filler, 0.5% KH-560 and do that coupling agent, 1% methyl-silicone oil are made defoamer, 0.5% 202P makes anti-settling agent and grinds 1.5h;
B component preparation: the phenolic aldehyde amine with 25%, 71% polymeric amide and 4% propyl carbinol hybrid electromagnetic stir;
The using method of coating: A component and the B component weight ratio by 13: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
6, the preparation technology of polyaniline anti-corrosive paint according to claim 1 is characterized in that:
A component preparation: the bisphenol A type epoxy resin with 35%, 15% nonconducting polyaniline in eigenstate powder and 45% hexone mix, add grinding in ball grinder 1h, polyaniline ground be the particle of diameter 350nm, add 3% 500 order red iron oxides again and make filler, 0.5% KH-560 and do that coupling agent, 0.5% methyl-silicone oil are made defoamer, 1% 202P makes anti-settling agent grinding 2h;
B component preparation: the phenolic aldehyde amine with 38%, 60% polymeric amide and 2% propyl carbinol mixing machinery stir;
The using method of coating: A component and the B component weight ratio by 18: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
7, the preparation technology of polyaniline anti-corrosive paint according to claim 1 is characterized in that:
A component preparation: the bisphenol A type epoxy resin with 31%, 12% nonconducting polyaniline in eigenstate powder and 35% propyl carbinol mix, add grinding in ball grinder 3h, polyaniline should be ground particle into diameter 1000nm, add 18% 500 order active micro silicon powders again and make filler, 1.3% KH-560 and do that coupling agent, 1.2% methyl-silicone oil are made defoamer, 1.5% 202P makes anti-settling agent and grinds 2h;
B component preparation: the phenolic aldehyde amine with 30%, 66% polymeric amide and 4% hexone mixing machinery stir;
The using method of coating: A component and the B component weight ratio by 14: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
8, the preparation technology of polyaniline anti-corrosive paint according to claim 1 is characterized in that:
A component preparation: the bisphenol A type epoxy resin with 34%, 7% nonconducting polyaniline in eigenstate powder and 50% dimethylbenzene mix, add grinding in ball grinder 1h, polyaniline ground be the particle about diameter 100nm, add 6% 400 order red iron oxides again and make filler, 0.6% KH-560 and do that coupling agent, 1.4% methyl-silicone oil are made defoamer, 1% 202P makes anti-settling agent and grinds 2h;
B component preparation: the phenolic aldehyde amine with 35%, 63% polymeric amide and 2% hexone mixing machinery stir;
The using method of coating: A component and the B component weight ratio by 16: 1 is mixed, be coated in pretreated metal surface, self-vulcanizing gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011381531A CN1175075C (en) | 2001-12-29 | 2001-12-29 | Process for prparing polyaniline corrosion-resistant paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011381531A CN1175075C (en) | 2001-12-29 | 2001-12-29 | Process for prparing polyaniline corrosion-resistant paint |
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| Publication Number | Publication Date |
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| CN1358812A CN1358812A (en) | 2002-07-17 |
| CN1175075C true CN1175075C (en) | 2004-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011381531A Expired - Fee Related CN1175075C (en) | 2001-12-29 | 2001-12-29 | Process for prparing polyaniline corrosion-resistant paint |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358964C (en) * | 2004-12-08 | 2008-01-02 | 吉林正基科技开发有限责任公司 | Polyaniline corrosion proof sealant |
| CN101314697B (en) * | 2008-06-26 | 2010-10-13 | 重庆理工大学 | Epichlorophdrin polyaniline anticorrosion paint and preparation thereof |
| CN102336909B (en) * | 2011-07-05 | 2012-12-19 | 绍兴贝斯美化工有限公司 | Eigenstate poly 2,3-dimethylaniline preparation, and application of eigenstate poly 2,3-dimethylaniline in anti-corrosive paint |
| CN102559011A (en) * | 2012-02-07 | 2012-07-11 | 中国船舶重工集团公司第七二五研究所 | Preparation method for epoxy anticorrosive coating |
| CN104845492A (en) * | 2015-05-13 | 2015-08-19 | 贵州师范学院 | Sulfuric acid/aluminum triphosphate doped poly-o-toluidine anticorrosive coating |
| CN107057544A (en) * | 2017-06-07 | 2017-08-18 | 南京科技职业学院 | A kind of carbamide paint and preparation method thereof |
| CN109423161A (en) * | 2017-07-18 | 2019-03-05 | 裴红艳 | A kind of waterproof coating material and preparation method thereof for nail shooting pill shell case |
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