CN114824844A - Lightning protection grounding material and preparation method thereof - Google Patents
Lightning protection grounding material and preparation method thereof Download PDFInfo
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- CN114824844A CN114824844A CN202210417353.6A CN202210417353A CN114824844A CN 114824844 A CN114824844 A CN 114824844A CN 202210417353 A CN202210417353 A CN 202210417353A CN 114824844 A CN114824844 A CN 114824844A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/18—Conductive material dispersed in non-conductive inorganic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- Spectroscopy & Molecular Physics (AREA)
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Abstract
The invention discloses a lightning protection grounding material which comprises the following components in parts by weight: 30-40 parts of montmorillonite clay, 15-25 parts of graphite, 25-35 parts of high-molecular water-absorbing polymer and 20-30 parts of conductive powder. The invention also provides a preparation method of the lightning protection grounding material, which is characterized in that the water gel is formed by weighing, polishing, mixing and stirring and pouring, and different sizes and shapes can be designed and poured according to requirements. According to the invention, montmorillonite clay, graphite, high-molecular water-absorbing polymer and conductive powder material are effectively combined, so that the lightning-proof grounding material has good conductivity and can play a better role in pressure equalization, drainage and flow dispersion; the inventor of the invention combines the use requirements of the lightning protection grounding, has wide application range, changes the use mode of the traditional lightning protection grounding, improves the stability and the strength of the impedance of the lightning protection grounding material, and has high cost performance and strong practicability.
Description
Technical Field
The invention relates to the technical field of lightning protection grounding, in particular to a lightning protection grounding material and a preparation method thereof.
Background
With the extensive and deep application of high technology in various industries and all regions, especially in the fields of power transmission and transformation, aerospace, flammable and explosive dangerous skiing places, rail transit, microelectronic technology and the like, the harm caused by thunder and static electricity is increasingly serious, and huge influence and damage are brought to the society and the life of people.
1) The selection of the grounding material needs to be considered:
2) the conductive material is safe and reliable, has good conductive performance, and can play a good role in pressure equalization, flow discharge and flow dispersion;
3) the material has necessary strength and can bear the action of mechanical external force and other various environmental forces;
4) the coating has good corrosion resistance;
5) the stability of the impedance is good;
6) the method is environment-friendly, and does not generate or damage the original soil environment;
7) the price is reasonable, the cost performance is high.
In the past research and application of grounding materials, grounding material manufacturers have used various materials to improve the pressure equalizing, flow discharging and flow dissipating performance of safety protection systems, such as copper materials, cast copper steel materials, galvanized steel materials, graphite, ski resistance reducers, and the like. However, copper, cast copper, galvanized steel and graphite have high cost, the steel is not corrosion resistant, the life cycle is short, and the chemical resistance reducing agent is easy to cause environmental pollution.
Therefore, a lightning protection grounding material with excellent performance and relatively high cost performance needs to be researched and solved.
Disclosure of Invention
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the lightning protection grounding material comprises the following components in parts by weight: 30-40 parts of montmorillonite clay, 15-25 parts of graphite, 25-35 parts of high-molecular water-absorbing polymer and 20-30 parts of conductive powder.
Preferably, the composition comprises the following components in parts by weight: 32-37 parts of montmorillonite clay, 18-23 parts of graphite, 27-32 parts of high-molecular water-absorbing polymer and 22-27 parts of conductive powder.
Preferably, the composition comprises the following components in parts by weight: 32 parts of montmorillonite clay, 18 parts of graphite, 27 parts of high-molecular water-absorbing polymer and 22 parts of conductive powder.
Preferably, the composition comprises the following components in parts by weight: 37 parts of montmorillonite clay, 23 parts of graphite, 32 parts of high-molecular water-absorbing polymer and 27 parts of conductive powder.
According to the invention, the montmorillonite clay has the characteristics of high water absorption and sufficient expansion, and is beneficial to fully compacting the grounding device and the surrounding soil, increasing the sectional area of a grounding conductor, and enlarging the contact area of lightning, static electricity and other discharge and current dissipation; the carbon fiber is closely combined with the surrounding soil, so that the obstruction of contact resistance is eliminated to the maximum extent; the low hydraulic permeability can effectively prevent the grounding resistance of the grounding device from rising due to dehydration and reduce the effects of leakage and current dispersion;
the graphite has the advantages of soft quality, good toughness, strong plasticity, easy processability, good conductivity, acid and corrosion resistance, long service life and the like, the carbon atoms on a plane layer are strongly bonded, are extremely difficult to damage, have stable chemical properties, can resist the long-term erosion of acid, alkali, salt solution and seawater in soil, and do not generate electrolytic reaction under the action of stray current; the material belongs to a non-magnetic material, and is beneficial to relieving the skin effect under high-frequency current and improving the utilization rate of conductors;
the high-molecular water-absorbing polymer is formed by connecting a hydrophilic polymer on a starch or cellulose skeleton, so that the water-absorbing capacity is high, the raw material cost is low, and the high-molecular water-absorbing polymer has the characteristic of microbial degradation; the water absorption rate is high, and the water-absorbing material is dissolved and expanded to be in a gel state after absorbing water; because the absorbed water is mainly sealed in the polymer network, the water-absorbing polymer network has the characteristics that the water is not easy to lose after absorbing the water, and the original water absorbing capacity can be recovered after drying;
the conductive powder is manufactured by adopting a nano process, and has the characteristics of good conductivity, good stability and difficult corrosion and oxidation.
The analysis shows that the materials are effectively combined and interacted, so that the conductive material has good conductivity and mechanical strength, and can play a good role in pressure equalization, flow discharge and flow dispersion; the impedance stability is good, the environment-friendly, do not cause the pollution to the environment, the sexual valence relative altitude is suitable for the lightning protection ground.
The invention also provides a preparation method of the lightning protection grounding material, which is characterized by comprising the following steps:
weighing: weighing the raw material components according to a proportion, and respectively dehydrating the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to ensure that the water content is not more than 0.5%;
polishing: respectively carrying out ball milling treatment on the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to grind the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder into powder;
mixing and stirring: placing montmorillonite clay and high molecular water-absorbing polymer in a high-speed mixer, fully and uniformly stirring, then adding graphite and conductive powder, continuously and fully stirring uniformly to form a mixture, and placing the mixture in a dry waterproof environment for later use;
pouring: and fully mixing the stirred mixture with sufficient water, and then expanding to form water gel, wherein the water gel can be horizontally or vertically poured, can be punched into various sizes and shapes according to requirements, and can be filled into a cavity to be naturally condensed.
Preferably, the sufficient amount of water is such that the stirred mixture expands to a water-gel.
According to the requirements of the lightning protection grounding material, the montmorillonite clay, the graphite, the high-molecular water-absorbing polymer and the conductive powder material are effectively combined, so that the lightning protection grounding material has good conductivity and can play a better role in pressure equalization, drainage and flow dispersion; the inventor of the invention combines the use requirements of lightning protection grounding, can design and pour the lightning protection grounding device with different sizes and shapes according to the actual needs, has wide application range, changes the use mode of the traditional lightning protection grounding, improves the stability and the strength of the impedance of the lightning protection grounding material, and has high cost performance and strong practicability.
Detailed Description
The first embodiment is as follows:
the lightning protection grounding material comprises the following components in parts by weight: 32 parts of montmorillonite clay, 18 parts of graphite, 27 parts of high-molecular water-absorbing polymer and 22 parts of conductive powder.
The invention also provides a preparation method of the lightning protection grounding material, which is characterized by comprising the following steps:
weighing: weighing the raw material components according to a proportion, and respectively dehydrating the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to ensure that the water content is not more than 0.5%;
polishing: respectively carrying out ball milling treatment on the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to grind the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder into powder;
mixing and stirring: placing montmorillonite clay and high molecular water-absorbing polymer in a high-speed mixer, fully and uniformly stirring, then adding graphite and conductive powder, continuously and fully stirring uniformly to form a mixture, and placing the mixture in a dry waterproof environment for later use;
pouring: and fully mixing the stirred mixture with sufficient water, and then expanding to form water gel, wherein the water gel can be horizontally or vertically poured, can be punched into various sizes and shapes according to requirements, and can be filled into a cavity to be naturally condensed.
Example two:
the lightning protection grounding material comprises the following components in parts by weight: 37 parts of montmorillonite clay, 23 parts of graphite, 32 parts of high-molecular water-absorbing polymer and 27 parts of conductive powder.
The invention also provides a preparation method of the lightning protection grounding material, which is characterized by comprising the following steps:
weighing: weighing the raw material components according to a proportion, and respectively dehydrating montmorillonite clay, graphite, high-molecular water-absorbing polymer and conductive powder to ensure that the water content is not more than 0.5%;
polishing: respectively carrying out ball milling treatment on the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to grind the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder into powder;
mixing and stirring: placing montmorillonite clay and high molecular water-absorbing polymer in a high-speed mixer, fully and uniformly stirring, then adding graphite and conductive powder, continuously and fully stirring uniformly to form a mixture, and placing the mixture in a dry waterproof environment for later use;
pouring: and fully mixing the stirred mixture with sufficient water, and then expanding to form water gel, wherein the water gel can be horizontally or vertically poured, can be punched into various sizes and shapes according to requirements, and can be filled into a cavity to be naturally condensed.
Example three:
the lightning protection grounding material comprises the following components in parts by weight: 35 parts of montmorillonite clay, 20 parts of graphite, 30 parts of high-molecular water-absorbing polymer and 25 parts of conductive powder.
The invention also provides a preparation method of the lightning protection grounding material, which is characterized by comprising the following steps:
weighing: weighing the raw material components according to a proportion, and respectively dehydrating the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to ensure that the water content is not more than 0.5%;
polishing: respectively carrying out ball milling treatment on the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to grind the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder into powder;
mixing and stirring: placing montmorillonite clay and high molecular water-absorbing polymer in a high-speed mixer, fully and uniformly stirring, then adding graphite and conductive powder, continuously and fully stirring uniformly to form a mixture, and placing the mixture in a dry waterproof environment for later use;
pouring: and fully mixing the stirred mixture with sufficient water, and then expanding to form water gel, wherein the water gel can be horizontally or vertically poured, can be punched into various sizes and shapes according to requirements, and can be filled into a cavity to be naturally condensed.
TABLE 1
TABLE 2
Through experimental comparison, especially in areas with high soil resistivity, such as islands, mountainous areas, deserts and the like, the effect can be optimized to 50 percent, and the design, construction, raw materials and labor cost are greatly saved.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The lightning protection grounding material is characterized by comprising the following components in parts by weight: 30-40 parts of montmorillonite clay, 15-25 parts of graphite, 25-35 parts of high-molecular water-absorbing polymer and 20-30 parts of conductive powder.
2. The lightning protection grounding material of claim 1, which is characterized by comprising the following components in parts by weight: 32-37 parts of montmorillonite clay, 18-23 parts of graphite, 27-32 parts of high-molecular water-absorbing polymer and 22-27 parts of conductive powder.
3. The lightning protection grounding material of claim 1, which is characterized by comprising the following components in parts by weight: 32 parts of montmorillonite clay, 18 parts of graphite, 27 parts of high molecular water-absorbing polymer and 22 parts of conductive powder.
4. The lightning protection grounding material of claim 1, which is characterized by comprising the following components in parts by weight: 37 parts of montmorillonite clay, 23 parts of graphite, 32 parts of high-molecular water-absorbing polymer and 27 parts of conductive powder.
5. The method for preparing the lightning protection grounding material according to claims 1 to 4, characterized by comprising the following steps:
weighing: weighing the raw material components according to a proportion, and respectively dehydrating the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to ensure that the water content is not more than 0.5%;
polishing: respectively carrying out ball milling treatment on the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder to grind the montmorillonite clay, the graphite, the high molecular water-absorbing polymer and the conductive powder into powder;
mixing and stirring: placing montmorillonite clay and high molecular water-absorbing polymer in a high-speed mixer, fully and uniformly stirring, then adding graphite and conductive powder, continuously and fully stirring to form a mixture, and placing the mixture in a dry waterproof environment for later use;
pouring: and fully mixing the stirred mixture with sufficient water, and then expanding to form water gel, wherein the water gel can be horizontally or vertically poured, can be punched into various sizes and shapes according to requirements, and can be filled into a cavity to be naturally condensed.
6. The method according to claim 5, wherein the sufficient amount of water is preferably such that the stirred mixture expands into a water gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210417353.6A CN114824844A (en) | 2022-04-20 | 2022-04-20 | Lightning protection grounding material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210417353.6A CN114824844A (en) | 2022-04-20 | 2022-04-20 | Lightning protection grounding material and preparation method thereof |
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| CN114824844A true CN114824844A (en) | 2022-07-29 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887765A (en) * | 2009-05-14 | 2010-11-17 | 长沙市雷立行电子科技有限公司 | Ion grounding electrode filling material |
| CN101888025A (en) * | 2009-05-14 | 2010-11-17 | 长沙市雷立行电子科技有限公司 | Grounding module material |
| CN105390179A (en) * | 2015-10-28 | 2016-03-09 | 国网吉林省电力有限公司检修公司 | Resistance reduction mud and preparation method thereof |
| CN106098142A (en) * | 2016-08-05 | 2016-11-09 | 海南中海电力工程有限公司 | A kind of physics friction reducer for voiceless demolition |
| CN112636022A (en) * | 2020-12-31 | 2021-04-09 | 国网河南省电力公司南阳供电公司 | Lightning-proof grounding graphite-based flexible composite material for power transmission and transformation system |
-
2022
- 2022-04-20 CN CN202210417353.6A patent/CN114824844A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887765A (en) * | 2009-05-14 | 2010-11-17 | 长沙市雷立行电子科技有限公司 | Ion grounding electrode filling material |
| CN101888025A (en) * | 2009-05-14 | 2010-11-17 | 长沙市雷立行电子科技有限公司 | Grounding module material |
| CN105390179A (en) * | 2015-10-28 | 2016-03-09 | 国网吉林省电力有限公司检修公司 | Resistance reduction mud and preparation method thereof |
| CN106098142A (en) * | 2016-08-05 | 2016-11-09 | 海南中海电力工程有限公司 | A kind of physics friction reducer for voiceless demolition |
| CN112636022A (en) * | 2020-12-31 | 2021-04-09 | 国网河南省电力公司南阳供电公司 | Lightning-proof grounding graphite-based flexible composite material for power transmission and transformation system |
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