CN105907243B - Power grid grounded screen conductive anti-corrosion coating and preparation method thereof - Google Patents
Power grid grounded screen conductive anti-corrosion coating and preparation method thereof Download PDFInfo
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- CN105907243B CN105907243B CN201610342973.2A CN201610342973A CN105907243B CN 105907243 B CN105907243 B CN 105907243B CN 201610342973 A CN201610342973 A CN 201610342973A CN 105907243 B CN105907243 B CN 105907243B
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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
-
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Conductive Materials (AREA)
Abstract
The invention belongs to power grid paint field, is related to grounded screen, more particularly to a kind of power grid grounded screen conductive anti-corrosion coating and preparation method thereof.According to parts by weight, including following effective ingredient：25 parts~35 parts of matrix resin；15 parts~25 parts of conductive filler；10 parts~20 parts of curing agent；5 parts~15 parts of coupling agent；5 parts~10 parts of dispersant；10 parts~15 parts of diluent；Wherein, the electrically-conducting paint is included according to mass ratio 1:2:1 carbon nanotubes, modified graphene and Nano titanium dioxide.The present invention utilizes the characteristic of graphene and carbon nanotubes, effectively completely cuts off corrosive medium, finally improves the corrosion resistance of anticorrosive paint, meanwhile, the present invention improves coatings conductive property, its sheet resistance 10 using the good conductive characteristic of graphene3~105Ω, meanwhile, nano level titanium dioxide addition, makes coating have certain self-cleaning ability, and then improve its antiseptic property.
Description
Technical field
The invention belongs to power grid paint field, is related to grounded screen, more particularly to a kind of conductive anti-corrosion of power grid grounded screen
Coating and preparation method thereof.
Background technology
As China's power grid is built on a large scale, substation is constantly emerged in large numbers on Divine Land like the mushrooms after rain, is
Ensure the safe handling of each electric device in substation, it is necessary to these equipment are being carried out ground connection setting, the purpose of ground connection
It is exactly as an element for conducting current loop, so that by electricity in normal, accident or in the case of being struck by lightning by the use of ground
The current potential of gas junction is fixed in a certain allowed band, and to ensure the person and equipment safety, maintenance system and installation security can
The operation leaned on.
Grounded screen is to be used for working earthing, lightning protection, protective grounding in network system, it is ensured that the person, equipment and be
The indispensable important device of safety of system.Good ground connection is to safeguard power system security reliability service, protects operations staff
Basic assurance and important measures with electrical equipment safety.
The pressure conductor of grounded screen is embedded in underground, because of failure welding, the burn into earth short circuit current electricity of solder skip or soil
The reasons such as power effect, make earth mat press between conductor or ground lead and pressing between conductor exist be electrically connected it is undesirable therefore
Barrier point.Cause Grounding performance depreciation.If ground short circuit failure occurs for system, larger earth current may cause ground
Potential anomalies raise or skewness, in addition to severe safety hazards are brought to operations staff, it is also possible to because of counterattack or cable skin ring
Stream is destroyed the insulation of secondary device, and high pressure seals in control room, causes detection or control device that malfunction or tripping occurs
And causing system sectionalizing or collapse, this will cause grounded screen accident.
The grounded screen of substation of China is generally to pass through it in the soil as earthing material, steel using steel at present
The electrochemical corrosion of body micro cell, macro cell is successively from outward appearance to inner essence corroded, either in saline-alkali soil, or in generality
In soil, the corrosion of carbon steel test piece is very serious, and surface has many local corrosions to cheat, and test piece edge is also imperfect, ground connection
The corrosion of net is than more serious, and local corrosion form is often presented.Make steel grounding body because of corrosion problem appear to is that serious.
Current anti-corrosion measure mainly has to be grounded using copper (copper covers steel) material, electrochemical protection measure, earthing pole resistance reduction technology, and conduction is anti-
Four kinds of methods such as rotten coating.
Although there are many coating types to occur for anti-corrosion electric conductivity, in general there is different lack
Fall into, significantly limit the application that this is coating, therefore, develop a kind of more stable antiseptic property, conductivity higher, using the longevity
Longer environmentally friendly grounded screen conductive anti-corrosion coating is ordered, solves ground net corrosion, protection question, improves ground connection net materials
The corrosion resistance of itself, ensures the stability of ground connection performance, effectively extends grounded screen service life, it is ensured that power equipment is long-term
Normal operation, avoids the generation of production accident, and improvement expenses is safeguarded in reduction, so as to produce obvious economic benefit and society's effect
Benefit.
The content of the invention
The present invention be directed to above-mentioned technical problem, propose a kind of reasonable formula, production method science, being capable of large-scale industry
Power grid grounded screen conductive anti-corrosion coating produce and that antiseptic property is stable, conductivity is high and preparation method thereof.
In order to achieve the above object, the technical solution adopted by the present invention is, the present invention provides a kind of power grid grounded screen with leading
Electric protection coating, includes following effective ingredient according to parts by weight：
Wherein, the conductive filler is included according to mass ratio 1:2:1 carbon nanotubes, modified graphene and nanoscale two
Titanium oxide.
Preferably, described matrix resin is aqueous epoxy resins.
Preferably, the curing agent is modified polyolefin amine and the mixture of modified phenolic amine, the modified polyolefin amine
It is 1 with modified phenolic amine mixing quality ratio：1.15.
Preferably, the coupling agent is silane coupling agent.
Preferably, the dispersant is dodecyl sodium sulfate or tween.
Preferably, the diluent is benzyl glycidyl ether, any one in dimethylbenzene, butyl acetate, n-butanol
Kind material.
Present invention also offers the method for preparing above-mentioned power grid grounded screen conductive anti-corrosion coating, comprise the following steps：
A, under nitrogen protection, measure polyethylene glycol and epoxy resin loading carries blender, thermometer and reflux condensation mode
In the reaction kettle of device, be heated to 70 DEG C~80 DEG C, start blender, with the rotating speed stirring 20 of 400~500r/min~
After 30min, 100~110 DEG C are continuously heating to, continues stirring 3~4h of reaction, obtains aqueous epoxy resins prepolymer；
B, prepare sodium hydrate aqueous solution, add 200-300 mesh modified graphenes be uniformly mixed after heating 40 DEG C~
60 DEG C, carbon nanotubes, Nano titanium dioxide are then added into sodium hydrate aqueous solution successively, stirs evenly, obtains conduction
Filler；
C, the aqueous epoxy resins prepolymer and conductive filler that prepare are added in reactor, is warming up to 70 DEG C~90
DEG C, and stir evenly, curing agent, coupling agent, dispersant, diluent are then added into reactor successively, is stirred evenly, i.e.,
Can.
Preferably, in the b step, mixing speed 2500r/min, mixing time is 3~5h.
Preferably, in the step c, mixing speed 1500r/min, mixing time is 0.5~2h.
Compared with prior art, the advantages and positive effects of the present invention are,
The present invention is effectively completely cut off corrosive medium, is finally improved anti-corrosion painting using graphene and the characteristic of carbon nanotubes
The corrosion resistance of material, meanwhile, graphene has great specific surface area and very strong adsorption capacity, so as to improve coating
Wearability, furthermore, graphene is added in aqueous epoxy resins floor paint in the form of additive, can fully combine epoxy resin
The good characteristic of two kinds of materials, makes coating have excellent corrosion resistance characteristic.Meanwhile the present invention utilizes the good conduction of graphene
Characteristic, improves coatings conductive property, its sheet resistance is 103~105Ω, meanwhile, nano level titanium dioxide addition, makes painting
Material has certain self-cleaning ability, and then improves its antiseptic property.
Embodiment
To better understand the objects, features and advantages of the present invention, with reference to embodiment to this hair
It is bright to be described further.It should be noted that in the case where there is no conflict, the feature in embodiments herein and embodiment can
To be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
With using implementing different from other modes described here, therefore, the present invention is not limited to the specific of specification is described below
The limitation of embodiment.
Embodiment 1, the present embodiment provides a kind of power grid grounded screen conductive anti-corrosion coating, according to parts by weight, including with
Lower composition, 25 parts of matrix resin, 15 parts of conductive filler, 10 parts of mixture, the dodecane of modified polyolefin amine and modified phenolic amine
5 parts of base sodium sulfonate, 5 parts of silane coupling agent (KH550), 10 parts of benzyl glycidyl ether, wherein conductive filler are included according to quality
Than 1:2:1 carbon nanotubes, modified graphene and Nano titanium dioxide.
First, under nitrogen protection, measure polyethylene glycol and epoxy resin loading carries blender, thermometer and returned cold
In the reaction kettle of solidifying device, 70 DEG C are heated to, starts blender, after the rotating speed stirring 20 of 400r/min, continues to heat up
To 100 DEG C, continue stirring reaction 4h, obtain aqueous epoxy resins prepolymer；Then, sodium hydrate aqueous solution is prepared, adds 200-
300 mesh modified graphenes be uniformly mixed after heat up 40 DEG C, then successively into sodium hydrate aqueous solution add carbon nanotubes,
Nano titanium dioxide, stirs evenly, and mixing speed 2500r/min, mixing time 3h, obtains conductive filler；Finally will
The aqueous epoxy resins prepolymer and conductive filler prepared is added in reactor, is warming up to 70 DEG C~90 DEG C, and is stirred evenly,
Mixing speed is 1500r/min, then adds curing agent, coupling agent, dispersant, diluent into reactor successively, and stirring is equal
Even, mixing speed 1500r/min, mixing time 0.5h, that is, obtain power grid grounded screen conductive anti-corrosion coating.
Embodiment 2, the present embodiment provides a kind of power grid grounded screen conductive anti-corrosion coating, according to parts by weight, including with
Lower composition, 35 parts of matrix resin, 25 parts of conductive filler, 15 parts of mixture, the dodecane of modified polyolefin amine and modified phenolic amine
(mixing quality is than 2 for 15 parts of 10 parts of base sodium sulfonate, 10 parts of silane coupling agent (KH550), dimethylbenzene and butyl acetate:3).
First, under nitrogen protection, measure polyethylene glycol and epoxy resin loading carries blender, thermometer and returned cold
In the reaction kettle of solidifying device, 70 DEG C are heated to, starts blender, after the rotating speed stirring 20 of 400r/min, continues to heat up
To 100 DEG C, continue stirring reaction 4h, obtain aqueous epoxy resins prepolymer；Then, sodium hydrate aqueous solution is prepared, adds 200-
300 mesh modified graphenes be uniformly mixed after heat up 40 DEG C, then successively into sodium hydrate aqueous solution add carbon nanotubes,
Nano titanium dioxide, stirs evenly, and mixing speed 2500r/min, mixing time 3h, obtains conductive filler；Finally will
The aqueous epoxy resins prepolymer and conductive filler prepared is added in reactor, is warming up to 70 DEG C~90 DEG C, and is stirred evenly,
Mixing speed is 1500r/min, then adds curing agent, coupling agent, dispersant, diluent into reactor successively, and stirring is equal
Even, mixing speed 1500r/min, mixing time 0.5h, that is, obtain power grid grounded screen conductive anti-corrosion coating.
Embodiment 3, the present embodiment provides a kind of power grid grounded screen conductive anti-corrosion coating, according to parts by weight, including with
Lower composition, 30 parts of matrix resin, 19 parts of conductive filler, 14 parts of mixture, the tween 8 of modified polyolefin amine and modified phenolic amine
Part, 15 parts of silane coupling agent (KH550), 15 parts of n-butanol.
First, under nitrogen protection, measure polyethylene glycol and epoxy resin loading carries blender, thermometer and returned cold
In the reaction kettle of solidifying device, 70 DEG C are heated to, starts blender, after the rotating speed stirring 20 of 400r/min, continues to heat up
To 100 DEG C, continue stirring reaction 4h, obtain aqueous epoxy resins prepolymer；Then, sodium hydrate aqueous solution is prepared, adds 200-
300 mesh modified graphenes be uniformly mixed after heat up 40 DEG C, then successively into sodium hydrate aqueous solution add carbon nanotubes,
Nano titanium dioxide, stirs evenly, and mixing speed 2500r/min, mixing time 3h, obtains conductive filler；Finally will
The aqueous epoxy resins prepolymer and conductive filler prepared is added in reactor, is warming up to 70 DEG C~90 DEG C, and is stirred evenly,
Mixing speed is 1500r/min, then adds curing agent, coupling agent, dispersant, diluent into reactor successively, and stirring is equal
Even, mixing speed 1500r/min, mixing time 0.5h, that is, obtain power grid grounded screen conductive anti-corrosion coating.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Effect embodiment is applied to other fields, but every without departing from technical solution of the present invention content, the technical spirit according to the present invention
Any simple modification, equivalent variations and the remodeling made to above example, still fall within the protection domain of technical solution of the present invention.
Claims (9)
1. a kind of power grid grounded screen conductive anti-corrosion coating, it is characterised in that include following effective ingredient according to parts by weight：
Wherein, the conductive filler is included according to mass ratio 1:2:1 carbon nanotubes, modified graphene and nanoscale titanium dioxide
Titanium.
2. power grid grounded screen conductive anti-corrosion coating according to claim 1, it is characterised in that described matrix resin is water
Property epoxy resin.
3. power grid grounded screen conductive anti-corrosion coating according to claim 1, it is characterised in that the curing agent is modification
The mixture of polyene amine and modified phenolic amine, modified polyolefin amine and modified phenolic amine the mixing quality ratio are 1：1.15.
4. power grid grounded screen conductive anti-corrosion coating according to claim 1, it is characterised in that the coupling agent is silane
Coupling agent.
5. power grid grounded screen conductive anti-corrosion coating according to claim 1, it is characterised in that the dispersant is 12
Sodium alkyl sulfonate or tween.
6. power grid grounded screen conductive anti-corrosion coating according to claim 1, it is characterised in that the diluent is benzyl
Any one material in glycidol ether, dimethylbenzene, butyl acetate, n-butanol.
7. preparing the method for 1~6 any one of them power grid grounded screen conductive anti-corrosion coating of the claims, its feature exists
In comprising the following steps：
A, under nitrogen protection, measure polyethylene glycol and epoxy resin loading carries blender, thermometer and reflux condensate device
Reaction kettle in, be heated to 70 DEG C~80 DEG C, start blender, 20~30min is stirred with the rotating speed of 400~500r/min
Afterwards, 100~110 DEG C are continuously heating to, continues stirring 3~4h of reaction, obtains aqueous epoxy resins prepolymer；
B, sodium hydrate aqueous solution is prepared, adds after 200-300 mesh modified graphenes are uniformly mixed and heats up 40 DEG C~60 DEG C,
Then carbon nanotubes, Nano titanium dioxide are added into sodium hydrate aqueous solution successively, stirs evenly, obtains conductive filler；
C, the aqueous epoxy resins prepolymer and conductive filler that prepare are added in reactor, is warming up to 70 DEG C~90 DEG C, and
Stir evenly, then add curing agent, coupling agent, dispersant, diluent into reactor successively, stir evenly, you can.
8. the method according to claim 7 for preparing power grid grounded screen conductive anti-corrosion coating, it is characterised in that the b
In step, mixing speed 2500r/min, mixing time is 3~5h.
9. the method according to claim 7 for preparing power grid grounded screen conductive anti-corrosion coating, it is characterised in that the c
In step, mixing speed 1500r/min, mixing time is 0.5~2h.
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| CN201610342973.2A CN105907243B (en) | 2016-05-20 | 2016-05-20 | Power grid grounded screen conductive anti-corrosion coating and preparation method thereof |
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| CN201610342973.2A CN105907243B (en) | 2016-05-20 | 2016-05-20 | Power grid grounded screen conductive anti-corrosion coating and preparation method thereof |
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| CN105907243B true CN105907243B (en) | 2018-05-11 |
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| CN107384134B (en) * | 2017-09-01 | 2018-05-25 | 厦门中凯新材石墨烯科技有限公司 | A kind of graphene floor paint and preparation method thereof |
| GB2583503A (en) * | 2019-04-30 | 2020-11-04 | !Obac Ltd | Heated floor or wall coating system |
| CN110655849A (en) * | 2019-11-12 | 2020-01-07 | 贵州电网有限责任公司 | Transformer substation grounding grid anticorrosive paint and production method thereof |
| CN111662608B (en) * | 2020-05-21 | 2022-04-22 | 国网河北省电力有限公司电力科学研究院 | Preparation method of super-hydrophobic conductive anticorrosive paint for grounding grid |
| CN112574606A (en) * | 2020-12-31 | 2021-03-30 | 江苏科辉环境科技有限公司 | Carbon nano tube anticorrosive paint |
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| CN1693392A (en) * | 2004-05-09 | 2005-11-09 | 中国科学院成都有机化学有限公司 | Electrostatic conducting corrosion-proof coating and preparation process thereof |
| US10259948B2 (en) * | 2014-03-25 | 2019-04-16 | Kaneka Corporation | Coating compositions and coating products made therefrom |
| CN104449249A (en) * | 2014-11-04 | 2015-03-25 | 南京航空航天大学 | Epoxy resin coating in marine steel pipe 3PE anticorrosive coating and preparation method thereof |
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Inventor after: Pan Pan Inventor after: Tong Li Inventor after: Hou Guiping Inventor after: Li Yumei Inventor after: Zhang Jing Inventor after: Yang Xiangrong Inventor after: Xu Kuan Inventor after: Wang Xiuju Inventor after: Ge Ruiming Inventor after: Yang Xingpu Inventor after: Wang Zhaopo Inventor after: Zhang Yueke Inventor after: Liu Yanhua Inventor after: Yang Shaoyin Inventor after: Zhang Wei Inventor after: Liu Jianfeng Inventor after: Liang Hongyuan Inventor after: Ge Ziqiang Inventor after: Ge Changping Inventor after: Liu Chao Inventor after: Wang Xuemei Inventor before: Pan Pan Inventor before: Zhao Haizhong Inventor before: Liu Jianfeng Inventor before: Li Quanzhong Inventor before: Zhao Jinyang Inventor before: Du Xiaojie Inventor before: Lu Sheng Inventor before: Zhu Dongtao Inventor before: Li Guangkai Inventor before: Zhao Kai |
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