CN106589361A - Solution and method for preparing polyaniline anticorrosive layer by polymerization of nanosecond pulse anode - Google Patents
Solution and method for preparing polyaniline anticorrosive layer by polymerization of nanosecond pulse anode Download PDFInfo
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- CN106589361A CN106589361A CN201611138669.2A CN201611138669A CN106589361A CN 106589361 A CN106589361 A CN 106589361A CN 201611138669 A CN201611138669 A CN 201611138669A CN 106589361 A CN106589361 A CN 106589361A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/026—Wholly aromatic polyamines
- C08G73/0266—Polyanilines or derivatives thereof
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- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/02—Polyamines
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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Abstract
The invention discloses a solution and method for preparing a nano polyaniline anticorrosive layer by the polymerization of a nanosecond pulse anode, and belongs to the technical field of surfaces. The solution is prepared from 0.05-1 M of aniline monomer, 0.05-1 M of sodium chloride, 0.05-0.1 M of 98% concentrated sulfuric acid and the balance deionized water. The method includes the following steps: placing steel into a prepared solution for processing for 1-5 min to obtain the nano polyaniline anticorrosive layer by the polymerization of the steel surface, wherein the steel serves as the anode, graphite serves as a cathode, the nanosecond pulse width is 100-500 ns, and the pulse voltage amplitude is 400-600 V. Compared with the prior art, the solution and the method have the advantages that in the technology for preparing the nano polyaniline anticorrosive layer by the polymerization of nanosecond pulse micro-arc plasma on the steel surface, the nanosecond pulse micro-arc plasma is adopted, according to steel ionization energy, selective polymerization separation is conducted, the processing efficiency is high, the processing time is short, and the film layer is uniform, dense and strong in adhesion force.
Description
Technical field
The present invention relates to a kind of nanosecond pulse micro arc plasma body polymerization prepares the solution and method of anticorrosive polyaniline layer, it is special
It is not a kind of method that nanosecond pulse micro arc plasma body polymerization prepares nano polyaniline anticorrosive coat, belongs to field of surface technology.
Background technology
Polyaniline forms one layer of passivation layer in steel surface, possesses the scratch resistance of uniqueness and the antiseptic power of anti-spot corrosion.Electricity
Anti-corrosion film layer prepared by chemical method is dense, can play good protective action.Usual anticorrosive polyaniline film layer galvanic electricity
The electrochemical methods such as bit scan method, Galvanostatic polymerization method, potentiostatic method and impulse polarization method are polymerized.These methods need multiple works
Sequence can just be prepared.Document（Yun Hong, Zhang Zhiguo, Xu Qunjie, Qian Chao, Li Shanshan, stainless steel surfaces prepare polyaniline-poly- second
The method of alkene pyrrolidone anti-corrosion film, CN201410535186.0 and Dong Yanbin, Li Qingshan, period-luminosity are lifted, and a kind of electrochemistry is closed
Into polyaniline/polyvinyl alcohol electrochromism composite membrane and technology of preparing, CN200910131845.3）A kind of electricity is described respectively
The method of chemical preparation anticorrosive polyaniline film layer.The former during stainless steel surfaces prepare corrosion prevention film, using cyclic voltammetric
Method is in stainless steel surfaces electrochemical deposition PANI-PVP composite membranes.The polyaniline electrochromism of the method synthesis of the latter's electrochemistry is multiple
Close film.The distribution of composite film is realized in both processing procedures using organic solvent all, so that multiple working procedure solves to be combined
The adhesive force of film layer, compactness and it is uniform and smooth the problems such as.So which is present, process time is long, and operating condition is poor, needs follow-up
Processing etc., relatively costly restriction.For reduces cost, efficiency is improved, there is provided a kind of nanosecond pulse micro arc plasma body polymerization system
The method of standby polyaniline nano anti-corrosion film layer.
The content of the invention
Deficiency of the present invention for the above, there is provided a kind of nanosecond pulse micro arc plasma body polymerization prepares nano polyaniline and prevents
The solution and method of rotten layer.The method is that, with iron and steel as anode, inert material is negative electrode, and nanosecond pulse pulsewidth is 100-500
Ns, pulse voltage amplitude are 400-600V, process 1-5 minutes, prepare nanometer using the polymerization of nanosecond pulse micro arc plasma body and gather
The method of aniline anti-corrosion film layer.The disposal methods efficiency high, time are short, and anti-corrosion film layer is fine and close, uniform and smooth, adhesive force
By force.The present invention is processed and reduces cost, and which is adapted to almost all of steel surface polymerization and prepares nano polyaniline anticorrosive coat.
In order to realize foregoing invention purpose, the present invention is achieved by the following technical solutions：
Steel surface nanosecond pulse micro arc plasma body polymerization of the present invention prepares nano polyaniline anticorrosive coat solution component：
Aniline monomer：0.05M-1M, Sodium Chloride：0.05M-1M, 98wt% concentrated sulphuric acid：0.05M-0.1M, solvent are deionized water.
98wt% is mass concentration.0.05M-0.1M refers to sulphuric acid ultimate density in the solution.Remaining concentration refers to solute in whole solution
Concentration.
Prepared by nano polyaniline anticorrosive coat to steel surface nanosecond pulse micro arc plasma body polymerization using above-mentioned solution
Method is as follows：Iron and steel is put in the solution of preparation, with iron and steel as anode, graphite is negative electrode, and nanosecond pulse pulsewidth is 100-500
Ns, pulse voltage amplitude are 400-600V, i.e., iron and steel is inserted in solution, process 1-5 minutes, and prepare in steel surface polymerization
Nano polyaniline anticorrosive coat.
Relative to prior art, beneficial effects of the present invention are：Steel surface nanosecond pulse differential of the arc of present invention research etc.
Gas ions polymerization prepares nano polyaniline anticorrosive blanket craft with nanosecond pulse micro arc plasma body, according to iron and steel ionization energy constituency
Polymerization is separated, and treatment effeciency is high, and the time is short, and even film layer, densification, adhesive force are strong.The present invention is processed and reduces cost, and which is suitable
Close almost all of steel surface polymerization and prepare nano polyaniline anticorrosive coat.Process time contracts from the dozens of minutes of other electrochemistry
Short only to use the thickness of a few minutes, film layer to increase to micro-meter scale from nanoscale for micro arc plasma body, membrane uniformity is from again
Synthesis film is changed into independent film forming.
Specific embodiment
The present invention is further described with reference to embodiment.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
Embodiment 1
Take 2/3 deionized water first in a 10L groove, dissolve 98% concentrated sulphuric acids of 350mL and 400g Sodium Chloride successively, etc.
After in groove, reagent all dissolves, 150mL aniline monomers are poured in tank liquor under fast stirring, until be mixed thoroughly,
10L is finally added water to, electrolyte is obtained, Q235 is put in the solution of preparation, with Q235 as anode, graphite is negative electrode, nanosecond
Pulse is 100 ns, and pulse voltage amplitude is 400V, i.e., Q235 is inserted in solution, is processed 1 minute, and on Q235 surfaces
Polymerization prepares nano polyaniline anticorrosive coat.It is 20 MPa to measure polyaniline film layer tensile strength, and it is 5 S/cm to measure its conductivity,
, more than 24 hours, more than the time of iron and steel neutral salt spray test, film layer scratch resistance capability is strong, and film thickness exists for neutral salt spray test
3 microns.
Embodiment 2
Take 2/3 deionized water first in a 10L groove, 98% concentrated sulphuric acids of 300mL for dissolving successively and 500g Sodium Chloride,
After all dissolving Deng reagent in groove, 100mL aniline monomers are poured in tank liquor under fast stirring, until being thoroughly mixed
It is even, finally add water to 10L and obtain electrolyte, 316 are put in the solution of preparation, with 316 as anode, graphite is negative electrode, nanosecond
Pulse is 500 ns, and pulse voltage amplitude is 600V, i.e., insert in solution 316, is processed 5 minutes, and poly- on 316 surfaces
Conjunction prepares nano polyaniline anticorrosive coat.It is 6 MPa to measure polyaniline film layer tensile strength, and it is 8 S/cm to measure its conductivity, in
Property salt spray test more than 24 hours, more than the time of iron and steel neutral salt spray test, film layer scratch resistance capability is strong, and film thickness is 6
Micron.
Embodiment 3
Take 2/3 deionized water first in a 15L groove, dissolve 98% concentrated sulphuric acids of 350mL and 500g Sodium Chloride successively, etc.
After in groove, reagent all dissolves, 100mL aniline monomers are poured in tank liquor under fast stirring, until be mixed thoroughly,
Finally add water to 10L and obtain electrolyte, 16Mn is put in the solution of preparation, with 16Mn as anode, graphite is negative electrode, nanosecond arteries and veins
A width of 200 ns of chong channel, pulse voltage amplitude is 400V, i.e., 16Mn is inserted in solution, is processed 2 minutes, and poly- on 16Mn surfaces
Conjunction prepares nano polyaniline anticorrosive coat.It is 8 MPa to measure polyaniline film layer tensile strength, and it is 24 S/cm to measure its conductivity, in
Property salt spray test more than 24 hours, more than the time of iron and steel neutral salt spray test, film layer scratch resistance capability is strong, and film thickness is 4
Micron.
It is 5.2-12MPa to measure polyaniline film layer tensile strength, measures its conductivity for 1.0-32S/cm, neutral salt spray examination
Test more than 24 hours, more than the time of iron and steel neutral salt spray test, film layer scratch resistance capability is strong, and film thickness is in 1-10 microns.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvement and the replacement of equivalents can also be made, these improvement
The technical scheme obtained with equivalent should also belong to protection scope of the present invention.
Claims (6)
1. a kind of steel surface nanosecond pulse micro arc plasma body polymerization prepares the solution of nano polyaniline anticorrosive coat, and its feature exists
In：Component is：Aniline monomer：0.05M-1M, Sodium Chloride：0.05M-1M, 98% concentrated sulphuric acid：0.05M-0.1M, solvent are to go
Ionized water.
2. a kind of steel surface nanosecond pulse micro arc plasma body polymerization according to claim 1 prepares nano polyaniline and prevents
The solution of rotten layer, it is characterised in that：Polyaniline film layer tensile strength is 5.2-12MPa, and conductivity is 1.0-32S/cm, neutral salt
Mist was tested more than 24 hours.
3. usage right requires that the solution described in 1 prepares nano polyaniline to steel surface nanosecond pulse micro arc plasma body polymerization
The method of anticorrosive coat, it is characterised in that：Iron and steel is put in the solution described in claim 1, with iron and steel as anode, graphite is the moon
Pole, nanosecond pulse pulsewidth are 100-500 ns, and pulse voltage amplitude is 400-600V, i.e., iron and steel is inserted in solution, process 1-5
Minute, nano polyaniline anticorrosive coat is prepared in steel surface polymerization.
4. the method for preparing nano polyaniline anticorrosive coat according to claim 3, it is characterised in that：Nanosecond pulse pulsewidth is
200 ns。
5. the method for preparing nano polyaniline anticorrosive coat according to claim 3, it is characterised in that：Polyaniline film layer tension
Intensity is 5.2-12MPa, and conductivity is 1.0-32S/cm, and neutral salt spray test was more than 24 hours.
6. the method for preparing nano polyaniline anticorrosive coat according to claim 3, it is characterised in that：Iron and steel is inserted solution
In, process 2 minutes, nano polyaniline anticorrosive coat is prepared in steel surface polymerization.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611138669.2A CN106589361B (en) | 2016-12-12 | 2016-12-12 | A kind of nanosecond pulse anode polymerization prepares the solution and method of anticorrosive polyaniline layer |
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| CN201611138669.2A CN106589361B (en) | 2016-12-12 | 2016-12-12 | A kind of nanosecond pulse anode polymerization prepares the solution and method of anticorrosive polyaniline layer |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405364A (en) * | 2002-11-07 | 2003-03-26 | 上海交通大学 | Method for preparing magnesium alloy surface well-distributed by polyaniline film |
| CN101942090A (en) * | 2010-09-10 | 2011-01-12 | 太原理工大学 | Preparation method of nano-fiber poly-aniline |
| CN104313658A (en) * | 2014-10-11 | 2015-01-28 | 上海电力学院 | Method for preparing polyaniline-polyvinylpyrrolidone corrosion-resistant film on surface of stainless steel |
-
2016
- 2016-12-12 CN CN201611138669.2A patent/CN106589361B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405364A (en) * | 2002-11-07 | 2003-03-26 | 上海交通大学 | Method for preparing magnesium alloy surface well-distributed by polyaniline film |
| CN101942090A (en) * | 2010-09-10 | 2011-01-12 | 太原理工大学 | Preparation method of nano-fiber poly-aniline |
| CN104313658A (en) * | 2014-10-11 | 2015-01-28 | 上海电力学院 | Method for preparing polyaniline-polyvinylpyrrolidone corrosion-resistant film on surface of stainless steel |
Non-Patent Citations (2)
| Title |
|---|
| HAIHUI ZHOU等: "The effect of the polyaniline morphology on the performance of polyaniline supercapacitors", 《J SOLID STATE ELECTROCHEM》 * |
| HAILIN HU 等: "Protection of stainless steel by polyaniline films against corrosion in aqueous environments", 《JOURNAL OF APPLIED ELECTROCHEMISTRY》 * |
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