CN109666374A - Composite anti-corrosive conductive coating - Google Patents
Composite anti-corrosive conductive coating Download PDFInfo
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- CN109666374A CN109666374A CN201811400547.5A CN201811400547A CN109666374A CN 109666374 A CN109666374 A CN 109666374A CN 201811400547 A CN201811400547 A CN 201811400547A CN 109666374 A CN109666374 A CN 109666374A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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Abstract
The invention proposes a kind of composite anti-corrosive conductive coatings, according to the number of parts by weight, including following components: 60~70 parts of epoxy resin, 10~30 parts of alkyd resin, 6~10 parts of modified graphene, 1~2 part of dispersing agent, 2~4 parts of curing agent, 0.2~0.5 part of fumed silica, 0.1~0.4 part nanometer iron oxide red, 0.5~1.2 part of silicone oil and 80~120 parts of water；Modified graphene is mainly prepared by graphene, titanium hydroxide, styrene, dodecyl sodium sulfate, aniline, methacrylic acid and initiator.The composite anti-corrosive conductive coating not only has good electric conductivity, also improves the adhesion property of coating.
Description
Technical field
The invention belongs to technical field of coatings, and in particular to a kind of composite anti-corrosive conductive coating.
Background technique
Conductive coating refers to that conductivity is greater than 10-12S/m, a kind of new function coating with semiconductor or conductor performance,
Conductive coating, which has, eliminates electrostatic, anti-electromagnetic shielding and Anticorrosive Character, can be widely used in petrochemical industry, space flight and aviation, electricity
Son communication, building and war industry field.Traditional conductive coating is mainly admixing type coating, it is by graphite, carbon black, gold
Belong to the conductive additives such as powder or metal oxide and macromolecule filming material composition.Conductive coating is due to filler and filmogen
Difference in structure leads to the poor compatibility between them, and filler distribution is uneven, seriously affects the electric conductivity and power of coating
Learn performance.Therefore it develops that a kind of stability is good, and conduct electricity very well new type electrical conductive paint, becomes the important research side of conductive coating
To.
Graphene has very unique performance: the specific surface area of super large, theoretical value 2630m2/ g, mechanical property are excellent
Different, thermal conductivity is 5300W/ (m ﹒ K), and carrier mobility reaches 200000cm2V-1s-1, more than 10 times of commercial silicon wafer mobility with
On, there is the conductivity (10 also higher than silver6s/cm)；It is almost transparent, there was only 2.3% absorption to light.Graphene conduct
Conductive material performance can be improved in conductive component, widens the application field of conductive material.But since the graphene of single lamella has
There is very big surface area, during preparing conductive coating, graphene is easily reunited, and influences its electric conductivity and light transmission
Property, using being greatly limited；And as conductive filler, it is not very in terms of corrosion-resistant, ageing-resistant performance to graphene
It is good.
Summary of the invention
The present invention proposes a kind of composite anti-corrosive conductive coating, which not only has good electric conductivity
Can, also improve the adhesion property of coating.
The technical scheme of the present invention is realized as follows:
A kind of composite anti-corrosive conductive coating, according to the number of parts by weight, including following components:
60~70 parts of epoxy resin, 10~30 parts of alkyd resin, 6~10 parts of modified graphene, 1~2 part of dispersing agent, solidification
2~4 parts of agent, 0.2~0.5 part of fumed silica, 0.1~0.4 part nanometer iron oxide red, 0.5~1.2 part of silicone oil and water 80~
120 parts；The modified graphene is mainly by graphene, titanium hydroxide, styrene, dodecyl sodium sulfate, aniline, metering system
Acid is prepared with initiator.
Preferably, the preparation method of the modified graphene, specifically includes the following steps:
1) graphene is added in 4~8wt% aqueous citric acid solution and is dispersed with stirring, after 1~2h of immersion treatment filtering with
The graphene of acid processing can be obtained after cleaning；
2) graphene of acid processing and aniline are added to the water and are stirred uniformly, then add titanium hydroxide, ten
Dialkyl sulfonates, styrene and methacrylic acid are stirred, and obtain mixed liquor；
3) initiator is added to the water and initiator solution is prepared；
4) after the mixed liquor of step 2) being warming up to 55~75 DEG C, initiator solution is slowly added dropwise, it is 2 that the duration, which is added dropwise,
~3h persistently keeps the temperature 20min~40min after being added dropwise, be cooled to 0~4 DEG C with ice bath immediately after, and filtering is cleaned and done
It is dry.
Preferably, according to the number of parts by weight, 30~40 parts of graphene, 8~16 parts of styrene, dodecyl sodium sulfate
0.6~1.8 part, 15~25 parts of aniline, 2~4 parts of initiator, 8~16 parts and 20~30 parts of methacrylic acid of titanium hydroxide.
Preferably, the initiator is ammonium persulfate, potassium peroxydisulfate, sodium peroxydisulfate or hydrogen peroxide.
Preferably, the dispersing agent is octadecyldimethyl hydroxyethyl ammonium nitrate, octadecyldimethyl ethoxy mistake
One or more of double octadecyldimethyl ammoniums of ammonium chlorate, dodecyl dimethyl benzyl ammonium chloride and bromination.
Preferably, the curing agent is one of imidazoles, 2-methylimidazole and 2-ethyl-4-methylimidazole or more
Kind.
The preparation method of composite anti-corrosive conductive coating of the invention:
Said components are weighed according to the proportion to be uniformly mixed.
Beneficial effects of the present invention:
1) composite anti-corrosive conductive coating of the invention selects modified graphene as conductive filler, modified graphene mainly by
Graphene, titanium hydroxide, dodecyl sodium sulfate, styrene, aniline, methacrylic acid and initiator are prepared, this method
What is obtained is the polymer of Doped with Titanium and graphene, and one side improves its compatibility with epoxy resin, can be steadily
In the epoxy, on the other hand which increase the electric conductivity performances of graphene for dispersion.Dodecyl sodium sulfate is in polymer table
Face introduces sulfonate functional group, so that coating has better anti-corrosion electric conductivity.
2) conductive anti-corrosion coating of the invention is coated on Q235 steel and is formed after coating respectively in 30 DEG C, 10%NaOH, 8%
H2SO4After impregnating 720h in 4.2%NaCl solution, coating is intact, and the destruction such as bubbling, peeling, crackle does not occur, and matrix obtains
Effective protection illustrates that the coating has good alkaline-resisting, acidproof, salt water resistance corrosive nature.
Specific embodiment
Embodiment 1
The preparation method of modified graphene the following steps are included:
1) graphene is added in 4wt% aqueous citric acid solution and is dispersed with stirring, after filtering and cleaning after immersion treatment 2h
The graphene of acid processing can be obtained；
2) graphene of acid processing and aniline are added to the water and are stirred uniformly, then add titanium hydroxide, ten
Dialkyl sulfonates, styrene and methacrylic acid are stirred, and obtain mixed liquor；
3) ammonium persulfate is added to the water and ammonium persulfate solution is prepared；
4) after the mixed liquor of step 2) being warming up to 55 DEG C, ammonium persulfate solution is slowly added dropwise, the dropwise addition duration is 3h,
40min is persistently kept the temperature after being added dropwise, is cooled to 4 DEG C with ice bath immediately after, and filtering is cleaned and dried.
According to the number of parts by weight, 30 parts of graphene, 16 parts of styrene, 0.6 part of dodecyl sodium sulfate, 25 parts of aniline,
2 parts of ammonium persulfate, 16 parts and 20 parts of methacrylic acid of titanium hydroxide.
Embodiment 2
The preparation method of modified graphene the following steps are included:
1) graphene is added in 8wt% aqueous citric acid solution and is dispersed with stirring, after filtering and cleaning after immersion treatment 1h
The graphene of acid processing can be obtained；
2) graphene of acid processing and aniline are added to the water and are stirred uniformly, then add titanium hydroxide, ten
Dialkyl sulfonates, styrene and methacrylic acid are stirred, and obtain mixed liquor；
3) sodium peroxydisulfate is added to the water and sodium peroxydisulfate solution is prepared；
4) after the mixed liquor of step 2) being warming up to 75 DEG C, sodium peroxydisulfate solution is slowly added dropwise, the dropwise addition duration is 2h,
20min is persistently kept the temperature after being added dropwise, is cooled to 0 DEG C with ice bath immediately after, and filtering is cleaned and dried.
According to the number of parts by weight, 40 parts of graphene, 8 parts of styrene, 1.8 parts of dodecyl sodium sulfate, 15 parts of aniline, mistake
4 parts of sodium sulphate, 8 parts and 30 parts of methacrylic acid of titanium hydroxide.
Embodiment 3
A kind of composite anti-corrosive conductive coating, according to the number of parts by weight, including following components:
65 parts of epoxy resin, 20 parts of alkyd resin, embodiment 18 parts of modified graphene, octadecyldimethyl ethoxy
1.6 parts of ammonium nitrate, 3 parts of 2-methylimidazole, 0.3 part of fumed silica, 0.3 part nanometer iron oxide red, 0.8 part of silicone oil and water
120 parts.
The conductive coating that the composite anti-corrosive conductive coating of the present embodiment is formed, measures conductivity 416S/m；According to GB/
T9286 measurement, adhesive force grade are 1 grade.
Embodiment 4
A kind of composite anti-corrosive conductive coating, according to the number of parts by weight, including following components:
60 parts of epoxy resin, 15 parts of alkyd resin, 6 parts of the modified graphene of embodiment 2, chlorination dodecyl dimethyl benzyl
1 part of base ammonium, 2 parts of imidazoles, 0.2 part of fumed silica, 0.1 part nanometer iron oxide red, 0.5 part of polyethers silicone oil and 100 parts of water.
The conductive coating that the composite anti-corrosive conductive coating of the present embodiment is formed, measures conductivity 398S/m；According to GB/
T9286 measurement, adhesive force grade are 1 grade.
Embodiment 5
A kind of composite anti-corrosive conductive coating, according to the number of parts by weight, including following components:
The double octadecyldimethyls of 64 parts of epoxy resin, 10 parts of alkyd resin, 9 parts of the modified graphene of embodiment 1, bromination
2 parts of ammonium, 4 parts of 2-ethyl-4-methylimidazole, 0.5 part of fumed silica, 0.3 part nanometer iron oxide red, 0.8 part of silicone oil and water
100 parts.
The conductive coating that the composite anti-corrosive conductive coating of the present embodiment is formed, measures conductivity 428S/m；According to GB/
T9286 measurement, adhesive force grade are 1 grade.
Embodiment 6
A kind of composite anti-corrosive conductive coating, according to the number of parts by weight, including following components:
The double hexadecyldimethylamines of 70 parts of epoxy resin, 30 parts of alkyd resin, 10 parts of the modified graphene of embodiment 1, bromination
2 parts of base ammonium, 4 parts of 2-ethyl-4-methylimidazole, 0.4 part of fumed silica, 0.4 part nanometer iron oxide red, 1.2 parts of silicone oil and
120 parts of water.
The conductive coating that the composite anti-corrosive conductive coating of the present embodiment is formed, measures conductivity 435S/m；According to GB/
T9286 measurement, adhesive force grade are 1 grade.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of composite anti-corrosive conductive coating, which is characterized in that according to the number of parts by weight, including following components:
60~70 parts of epoxy resin, 10~30 parts of alkyd resin, 6~10 parts of modified graphene, 1~2 part of dispersing agent, curing agent 2
~4 parts, 0.2~0.5 part of fumed silica, 0.1~0.4 part nanometer iron oxide red, 0.5~1.2 part of silicone oil and water 80~120
Part；The modified graphene is mainly by graphene, titanium hydroxide, styrene, dodecyl sodium sulfate, aniline, methacrylic acid
It is prepared with initiator.
2. composite anti-corrosive conductive coating according to claim 1, which is characterized in that the preparation side of the modified graphene
Method, specifically includes the following steps:
1) graphene is added in 4~8wt% aqueous citric acid solution and is dispersed with stirring, filtered and clean after 1~2h of immersion treatment
The graphene of acid processing can be obtained afterwards；
2) graphene of acid processing and aniline are added to the water and are stirred uniformly, then add titanium hydroxide, dodecane
Base sodium sulfonate, styrene and methacrylic acid are stirred, and obtain mixed liquor；
3) initiator is added to the water and initiator solution is prepared；
4) after the mixed liquor of step 2) being warming up to 55~75 DEG C, be slowly added dropwise initiator solution, be added dropwise the duration be 2~
3h persistently keeps the temperature 20min~40min after being added dropwise, be cooled to 0~4 DEG C with ice bath immediately after, filtering, clean and drying
?.
3. composite anti-corrosive conductive coating according to claim 2, which is characterized in that according to the number of parts by weight, graphene
30~40 parts, 8~16 parts of styrene, 0.6~1.8 part of dodecyl sodium sulfate, 15~25 parts of aniline, 2~4 parts of initiator, hydrogen
8~16 parts and 20~30 parts of methacrylic acid of titanium oxide.
4. composite anti-corrosive conductive coating according to claim 2, which is characterized in that the initiator is ammonium persulfate, mistake
Potassium sulfate, sodium peroxydisulfate or hydrogen peroxide.
5. composite anti-corrosive conductive coating according to claim 1, which is characterized in that the dispersing agent is hexadecyldimethylamine
Base hydroxyethyl ammonium nitrate, octadecyldimethyl ethoxy ammonium perchlorate, dodecyl dimethyl benzyl ammonium chloride and bromination are double
One or more of octadecyldimethyl ammonium.
6. composite anti-corrosive conductive coating according to claim 1, which is characterized in that the curing agent is imidazoles, 2- methyl
One or more of imidazoles and 2-ethyl-4-methylimidazole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811400547.5A CN109666374A (en) | 2018-11-22 | 2018-11-22 | Composite anti-corrosive conductive coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811400547.5A CN109666374A (en) | 2018-11-22 | 2018-11-22 | Composite anti-corrosive conductive coating |
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| Publication Number | Publication Date |
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| CN109666374A true CN109666374A (en) | 2019-04-23 |
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| CN201811400547.5A Withdrawn CN109666374A (en) | 2018-11-22 | 2018-11-22 | Composite anti-corrosive conductive coating |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408306A (en) * | 2019-08-07 | 2019-11-05 | 安庆市泽烨新材料技术推广服务有限公司 | A kind of addition type conductive coating and preparation method thereof |
| CN110408307A (en) * | 2019-08-07 | 2019-11-05 | 安庆市泽烨新材料技术推广服务有限公司 | A kind of anticorrosion epoxy resin conductive coating and preparation method thereof |
| CN110724435A (en) * | 2019-10-17 | 2020-01-24 | 中国石油天然气集团公司 | Drag-reducing epoxy coating in water-based pipeline and preparation method, anticorrosive coating and application thereof |
| CN112724769A (en) * | 2020-11-27 | 2021-04-30 | 马鞍山十七冶工程科技有限责任公司 | Water-based on-rust paint for steel structure and preparation method thereof |
| CN114262555A (en) * | 2022-01-17 | 2022-04-01 | 江苏冠军科技集团股份有限公司 | Sulfanilamide-silver compound doped graphene zinc powder heavy-duty anticorrosive coating and preparation method thereof |
-
2018
- 2018-11-22 CN CN201811400547.5A patent/CN109666374A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408306A (en) * | 2019-08-07 | 2019-11-05 | 安庆市泽烨新材料技术推广服务有限公司 | A kind of addition type conductive coating and preparation method thereof |
| CN110408307A (en) * | 2019-08-07 | 2019-11-05 | 安庆市泽烨新材料技术推广服务有限公司 | A kind of anticorrosion epoxy resin conductive coating and preparation method thereof |
| CN110724435A (en) * | 2019-10-17 | 2020-01-24 | 中国石油天然气集团公司 | Drag-reducing epoxy coating in water-based pipeline and preparation method, anticorrosive coating and application thereof |
| CN110724435B (en) * | 2019-10-17 | 2022-02-22 | 中国石油天然气集团公司 | Drag-reducing epoxy coating in water-based pipeline and preparation method, anticorrosive coating and application thereof |
| CN112724769A (en) * | 2020-11-27 | 2021-04-30 | 马鞍山十七冶工程科技有限责任公司 | Water-based on-rust paint for steel structure and preparation method thereof |
| CN114262555A (en) * | 2022-01-17 | 2022-04-01 | 江苏冠军科技集团股份有限公司 | Sulfanilamide-silver compound doped graphene zinc powder heavy-duty anticorrosive coating and preparation method thereof |
| CN114262555B (en) * | 2022-01-17 | 2022-09-27 | 江苏冠军科技集团股份有限公司 | Sulfanilamide-silver compound doped graphene zinc powder heavy-duty anticorrosive coating and preparation method thereof |
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