CN105907243A - Conductive anticorrosive paint for power grounding grid and preparation method thereof - Google Patents
Conductive anticorrosive paint for power grounding grid and preparation method thereof Download PDFInfo
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- CN105907243A CN105907243A CN201610342973.2A CN201610342973A CN105907243A CN 105907243 A CN105907243 A CN 105907243A CN 201610342973 A CN201610342973 A CN 201610342973A CN 105907243 A CN105907243 A CN 105907243A
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- paint
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- grounded screen
- corrosion coating
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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
Abstract
The invention belongs to the field of paint for the power grid, relates to the grounding grid, and particularly relates to conductive anticorrosive paint for the power grounding grid and a preparation method thereof. The paint is prepared from the following effective ingredients in parts by weight: 25-35 parts of matrix resin, 15-25 parts of conductive filler, 10-20 parts of a curing agent, 5-15 parts of a coupling agent, 5-10 parts of a dispersing agent and 10-15 parts of a diluting agent, wherein the conductive paint comprises carbon nano-tube, modified graphene and nano-grade titanium dioxide in a mass ratio of 1:2:1. According to the anticorrosive paint, corrosive medium can be effectively isolated by utilizing the characteristics of graphene and carbon nanotube, and the corrosion resistance of anticorrosive paint can be finally improved; the conductive performance of paint can be improved by utilizing the excellent conductive property of graphene, and the surface resistance of the paint is 103-105 omega; furthermore, the paint has certain self-cleaning capability due to addition of the nano-grade titanium dioxide, and the corrosion resistance of the paint can be improved.
Description
Technical field
The invention belongs to electrical network paint field, relate to grounded screen, particularly relate to a kind of electrical network grounded screen conductive anti-corrosion coating and preparation method thereof.
Background technology
Along with China's electrical network is built on a large scale, transformer station the most constantly emerges in large numbers on Divine Land, in order to ensure the safe handling of each electric device in transformer station, need these equipment are being carried out ground connection setting, the purpose of ground connection be exactly utilize as conduct current loop an element, thus normal, accident or in the case of being struck by lightning by electrical connection at current potential be fixed in a certain allowed band, to ensure the person and equipment safety, maintenance system and installation security are run reliably.
Grounded screen is for working earthing, lightning protection, protective grounding in network system, it is ensured that the person, equipment and the indispensable important device of safety of system.Good ground connection is to safeguard power system security reliability service, protection operations staff and the basic assurance of electrical equipment safety and important measures.
All pressures conductor of grounded screen is embedded in underground, because of the reason such as burn into earth short circuit current electrodynamic action of failure welding, solder skip or soil, makes earth mat all press between conductor or ground lead and all there is the trouble point that electrical connection is bad between pressure conductor.Cause Grounding performance depreciation.If system generation ground short circuit fault, bigger earth current may cause the abnormal rising of earth potential or skewness, in addition to bringing severe safety hazards to operations staff, it is also possible to because counterattack or cable skin circulation make the insulation of secondary device be destroyed, high pressure seals in control room, causing detection or control equipment generation misoperation or tripping and cause system sectionalizing or collapse, this will result in grounded screen accident.
The grounded screen of transformer station of China is generally and uses steel as earthing material at present, steel are the most from outward appearance to inner essence corroded by itself micro cell, the electrochemical corrosion of macro cell in soil, either at saline-alkali soil, or in general soil, the corrosion of carbon steel test piece is the most serious, and surface has many local corrosions to cheat, and test piece edge is the most imperfect, the corrosion of grounded screen is that ratio is more serious, often presents local corrosion form.Steel grounding body is made to problem appear to is that because of corrosion serious.Current anti-corrosion measure mainly has four kinds of methods such as employing copper (copper covers steel) material ground connection, electrochemical protection measure, earthing pole resistance reduction technology, conductive anti-corrosion coating.
Although having had a lot of coating types to occur for anticorrosion electric conductivity, but the most all there is different defects, significantly limit the application that this is coating, therefore, develop a kind of antiseptic property more stable, conductivity is higher, the environmentally friendly grounded screen conductive anti-corrosion coating that service life is longer, solve ground net corrosion, protection question, improve the decay resistance of grounded screen material self, ensure the stability of ground connection performance, effectively extend grounded screen service life, guarantee that power equipment is the most properly functioning, avoid the generation of production accident, reduce and safeguard improvement expenses, thus produce obvious economic benefit and social benefit.
Summary of the invention
The present invention is directed to above-mentioned technical problem, propose a kind of formula rationally, manufacture method science, can large-scale industrial production and antiseptic property is stable, conductivity is high electrical network grounded screen conductive anti-corrosion coating and preparation method thereof.
In order to achieve the above object, the technical solution used in the present invention is, the present invention provides a kind of electrical network grounded screen conductive anti-corrosion coating, includes following active ingredient according to parts by weight:
Wherein, described electrically-conducting paint includes the CNT according to mass ratio 1:2:1, modified graphene and Nano titanium dioxide.
As preferably, described matrix resin is aqueous epoxy resins.
As preferably, described firming agent is modified polyolefin amine and the mixture of modified phenolic amine, and described modified polyolefin amine and modified phenolic amine mixing quality are than for 1:1.15.
As preferably, described coupling agent is silane coupler.
As preferably, described dispersant is dodecyl sodium sulfate or tween.
As preferably, described diluent is any one material in benzyl glycidyl ether, dimethylbenzene, butyl acetate, n-butyl alcohol.
Present invention also offers the method preparing above-mentioned electrical network grounded screen conductive anti-corrosion coating, comprise the following steps:
A, under nitrogen protection; measure Polyethylene Glycol and epoxy resin loads in the reactor with agitator, thermometer and reflux condensate device; it is heated to 70 DEG C～80 DEG C; start agitator; after rotating speed with 400～500r/min stirs 20～30min; it is continuously heating to 100～110 DEG C, continues stirring reaction 3～4h, obtain aqueous epoxy resins prepolymer；
B, preparation sodium hydrate aqueous solution, add after 200-300 mesh modified graphene is uniformly mixed and heat up 40 DEG C～60 DEG C, adds CNT, Nano titanium dioxide the most successively, stir, obtain conductive filler in sodium hydrate aqueous solution；
C, the aqueous epoxy resins prepolymer prepared and conductive filler are added in reactor, are warming up to 70 DEG C～90 DEG C, and stir, in reactor, add firming agent, coupling agent, dispersant, diluent the most successively, stir,.
As preferably, in described b step, mixing speed is 2500r/min, and mixing time is 3～5h.
As preferably, in described step c, mixing speed is 1500r/min, and mixing time is 0.5～2h.
Compared with prior art, advantages of the present invention and good effect are,
The present invention utilizes the characteristic of Graphene and CNT, effectively completely cut off corrosive medium, finally improve the decay resistance of anticorrosive paint, meanwhile, Graphene has great specific surface area and the strongest absorbability, thus improves the wearability of coating, furthermore, Graphene is added in aqueous epoxy resins floor paint with additive form, it is possible to the fully good characteristic of coupling collar epoxy resins bi-material, make coating have excellent corrosion resistance characteristic.Meanwhile, the present invention utilizes the conductive characteristic that Graphene is good, improves coatings conductive property, and its sheet resistance is 103～105Ω, meanwhile, nano level titanium dioxide adds, and makes coating have certain self-cleaning ability, and then improves its antiseptic property.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with embodiment, the present invention will be further described.It should be noted that in the case of not conflicting, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but, the present invention can be different from other modes described here with employing and implement, and therefore, the present invention is not limited to the restriction of the specific embodiment of description described below.
Embodiment 1, the present embodiment provides a kind of electrical network grounded screen conductive anti-corrosion coating, according to parts by weight, including following composition, 10 parts of the mixture of matrix resin 25 parts, conductive filler 15 parts, modified polyolefin amine and modified phenolic amine, dodecyl sodium sulfate 5 parts, silane coupler (KH550) 5 parts, benzyl glycidyl ether 10 parts, wherein electrically-conducting paint includes the CNT according to mass ratio 1:2:1, modified graphene and Nano titanium dioxide.
First; under nitrogen protection; measure Polyethylene Glycol and epoxy resin loads in the reactor with agitator, thermometer and reflux condensate device; it is heated to 70 DEG C; start agitator, after stirring 20 with the rotating speed of 400r/min, be continuously heating to 100 DEG C; continue stirring reaction 4h, obtain aqueous epoxy resins prepolymer；Then, prepare sodium hydrate aqueous solution, add after 200-300 mesh modified graphene is uniformly mixed and heat up 40 DEG C, adding CNT, Nano titanium dioxide the most successively in sodium hydrate aqueous solution, stir, mixing speed is 2500r/min, mixing time is 3h, obtains conductive filler；Finally the aqueous epoxy resins prepolymer prepared and conductive filler are added in reactor, it is warming up to 70 DEG C～90 DEG C, and stir, mixing speed is 1500r/min, adding firming agent, coupling agent, dispersant, diluent the most successively in reactor, stir, mixing speed is 1500r/min, mixing time is 0.5h, i.e. obtains electrical network grounded screen conductive anti-corrosion coating.
Embodiment 2, the present embodiment provides a kind of electrical network grounded screen conductive anti-corrosion coating, according to parts by weight, including following composition, 15 parts of the mixture of matrix resin 35 parts, conductive filler 25 parts, modified polyolefin amine and modified phenolic amine, dodecyl sodium sulfate 10 parts, silane coupler (KH550) 10 parts, dimethylbenzene and butyl acetate 15 parts (mixing quality is than 2:3).
First; under nitrogen protection; measure Polyethylene Glycol and epoxy resin loads in the reactor with agitator, thermometer and reflux condensate device; it is heated to 70 DEG C; start agitator, after stirring 20 with the rotating speed of 400r/min, be continuously heating to 100 DEG C; continue stirring reaction 4h, obtain aqueous epoxy resins prepolymer；Then, preparation sodium hydrate aqueous solution, add after 200-300 mesh modified graphene is uniformly mixed and heat up 40 DEG C, CNT, Nano titanium dioxide is added the most successively in sodium hydrate aqueous solution, stir, mixing speed is 2500r/min, and mixing time is 3h, obtains conductive filler；Finally the aqueous epoxy resins prepolymer prepared and conductive filler are added in reactor, it is warming up to 70 DEG C～90 DEG C, and stir, mixing speed is 1500r/min, adding firming agent, coupling agent, dispersant, diluent the most successively in reactor, stir, mixing speed is 1500r/min, mixing time is 0.5h, i.e. obtains electrical network grounded screen conductive anti-corrosion coating.
Embodiment 3, the present embodiment provides a kind of electrical network grounded screen conductive anti-corrosion coating, according to parts by weight, including following composition, 14 parts of the mixture of matrix resin 30 parts, conductive filler 19 parts, modified polyolefin amine and modified phenolic amine, tween 8 parts, silane coupler (KH550) 15 parts, n-butyl alcohol 15 parts.
First; under nitrogen protection; measure Polyethylene Glycol and epoxy resin loads in the reactor with agitator, thermometer and reflux condensate device; it is heated to 70 DEG C; start agitator, after stirring 20 with the rotating speed of 400r/min, be continuously heating to 100 DEG C; continue stirring reaction 4h, obtain aqueous epoxy resins prepolymer；Then, prepare sodium hydrate aqueous solution, add after 200-300 mesh modified graphene is uniformly mixed and heat up 40 DEG C, adding CNT, Nano titanium dioxide the most successively in sodium hydrate aqueous solution, stir, mixing speed is 2500r/min, mixing time is 3h, obtains conductive filler；Finally the aqueous epoxy resins prepolymer prepared and conductive filler are added in reactor, it is warming up to 70 DEG C～90 DEG C, and stir, mixing speed is 1500r/min, adding firming agent, coupling agent, dispersant, diluent the most successively in reactor, stir, mixing speed is 1500r/min, mixing time is 0.5h, i.e. obtains electrical network grounded screen conductive anti-corrosion coating.
The above; it it is only presently preferred embodiments of the present invention; it it is not the restriction that the present invention is made other form; any those skilled in the art are changed possibly also with the technology contents of the disclosure above or are modified as the Equivalent embodiments of equivalent variations is applied to other field; but it is every without departing from technical solution of the present invention content; any simple modification, equivalent variations and the remodeling made above example according to the technical spirit of the present invention, still falls within the protection domain of technical solution of the present invention.
Claims (9)
1. an electrical network grounded screen conductive anti-corrosion coating, it is characterised in that include following according to parts by weight
Active ingredient:
Wherein, described electrically-conducting paint includes the CNT according to mass ratio 1:2:1, modified graphene
And Nano titanium dioxide.
Electrical network grounded screen conductive anti-corrosion coating the most according to claim 1, it is characterised in that described
Matrix resin is aqueous epoxy resins.
Electrical network grounded screen conductive anti-corrosion coating the most according to claim 1, it is characterised in that described
Firming agent is modified polyolefin amine and the mixture of modified phenolic amine, described modified polyolefin amine and modified phenolic amine
Mixing quality is than for 1:1.15.
Electrical network grounded screen conductive anti-corrosion coating the most according to claim 1, it is characterised in that described
Coupling agent is silane coupler.
Electrical network grounded screen conductive anti-corrosion coating the most according to claim 1, it is characterised in that described
Dispersant is dodecyl sodium sulfate or tween.
Electrical network grounded screen conductive anti-corrosion coating the most according to claim 1, it is characterised in that described
Diluent is any one material in benzyl glycidyl ether, dimethylbenzene, butyl acetate, n-butyl alcohol.
7. the side of preparation electrical network grounded screen conductive anti-corrosion coating described in any one of the claims 1～6
Method, it is characterised in that comprise the following steps:
A, under nitrogen protection, measure Polyethylene Glycol and epoxy resin load with agitator, thermometer and
In the reactor of reflux condensate device, be heated to 70 DEG C～80 DEG C, start agitator, with 400～
After the rotating speed stirring 20～30min of 500r/min, it is continuously heating to 100～110 DEG C, continues stirring reaction
3～4h, obtain aqueous epoxy resins prepolymer；
B, preparation sodium hydrate aqueous solution, add after 200-300 mesh modified graphene is uniformly mixed and rise
Temperature 40 DEG C～60 DEG C, adds CNT, Nano titanium dioxide the most successively in sodium hydrate aqueous solution,
Stir, obtain conductive filler；
C, the aqueous epoxy resins prepolymer prepared and conductive filler are added in reactor, be warming up to
70 DEG C～90 DEG C, and stir, add in reactor the most successively firming agent, coupling agent, dispersant,
Diluent, stirs,.
The method preparing electrical network grounded screen conductive anti-corrosion coating the most according to claim 7, it is special
Levying and be, in described b step, mixing speed is 2500r/min, and mixing time is 3～5h.
The method preparing electrical network grounded screen conductive anti-corrosion coating the most according to claim 7, it is special
Levying and be, in described step c, mixing speed is 1500r/min, and mixing time is 0.5～2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
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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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| CN105907243A true CN105907243A (en) | 2016-08-31 |
| CN105907243B CN105907243B (en) | 2018-05-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107384134A (en) * | 2017-09-01 | 2017-11-24 | 厦门中凯新材石墨烯科技有限公司 | A kind of novel graphite alkene floor paint and preparation method thereof |
| 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 |
| CN111662608A (en) * | 2020-05-21 | 2020-09-15 | 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 |
| GB2583503A (en) * | 2019-04-30 | 2020-11-04 | !Obac Ltd | Heated floor or wall coating system |
| 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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| 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 |
| US20160115324A1 (en) * | 2014-03-25 | 2016-04-28 | Kaneka Corporation | Coating compositions and coating products made therefrom |
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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 |
| US20160115324A1 (en) * | 2014-03-25 | 2016-04-28 | Kaneka Corporation | Coating compositions and coating products made therefrom |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107384134A (en) * | 2017-09-01 | 2017-11-24 | 厦门中凯新材石墨烯科技有限公司 | A kind of novel graphite alkene floor paint and preparation method thereof |
| 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 |
| CN111662608A (en) * | 2020-05-21 | 2020-09-15 | 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 |
| 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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| CN105907243B (en) | 2018-05-11 |
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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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