CN114496424B - Column insulator and manufacturing method thereof - Google Patents
Column insulator and manufacturing method thereof Download PDFInfo
- Publication number
- CN114496424B CN114496424B CN202210336252.6A CN202210336252A CN114496424B CN 114496424 B CN114496424 B CN 114496424B CN 202210336252 A CN202210336252 A CN 202210336252A CN 114496424 B CN114496424 B CN 114496424B
- Authority
- CN
- China
- Prior art keywords
- parts
- composite material
- insulator
- protective layer
- modified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 144
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 125
- 239000002131 composite material Substances 0.000 claims abstract description 98
- 239000011241 protective layer Substances 0.000 claims abstract description 85
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 82
- 239000011159 matrix material Substances 0.000 claims abstract description 80
- 241000565391 Fraxinus mandshurica Species 0.000 claims abstract description 56
- 239000004927 clay Substances 0.000 claims abstract description 56
- 239000003365 glass fiber Substances 0.000 claims abstract description 43
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 42
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 41
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 41
- 239000003822 epoxy resin Substances 0.000 claims abstract description 40
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 40
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 36
- 239000000839 emulsion Substances 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 19
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 19
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 18
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 18
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 18
- 239000010456 wollastonite Substances 0.000 claims abstract description 18
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 55
- 238000001816 cooling Methods 0.000 claims description 43
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 35
- 239000011248 coating agent Substances 0.000 claims description 33
- 238000000576 coating method Methods 0.000 claims description 33
- 238000002156 mixing Methods 0.000 claims description 30
- 238000002360 preparation method Methods 0.000 claims description 27
- 238000001035 drying Methods 0.000 claims description 24
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 239000011259 mixed solution Substances 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 14
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 12
- 230000004048 modification Effects 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- FGZFESWHQXSPJU-UHFFFAOYSA-N 2-methyl-2-(3,3,3-trifluoropropyl)-1,3,5,2,4,6-trioxatrisilinane Chemical compound FC(F)(F)CC[Si]1(C)O[SiH2]O[SiH2]O1 FGZFESWHQXSPJU-UHFFFAOYSA-N 0.000 claims description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 7
- 235000021355 Stearic acid Nutrition 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 7
- 235000019441 ethanol Nutrition 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 7
- 229940089951 perfluorooctyl triethoxysilane Drugs 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 239000008117 stearic acid Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims 5
- 229910052906 cristobalite Inorganic materials 0.000 claims 5
- 229910052682 stishovite Inorganic materials 0.000 claims 5
- 229910052905 tridymite Inorganic materials 0.000 claims 5
- 239000004593 Epoxy Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 30
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000003075 superhydrophobic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/14—Supporting insulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
- H01B19/04—Treating the surfaces, e.g. applying coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a column insulator and a manufacturing method thereof, which relate to the technical field of insulators and comprise an insulator matrix, and a first protective layer and a second protective layer which are sequentially covered on the surface of the insulator matrix, wherein the raw materials for forming the first protective layer comprise: silicon carbide, polyvinyl alcohol, fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material; the raw materials for forming the second protective layer comprise: modified epoxy resin/montmorillonite composite material, modified hydrophobic silicon dioxide, polyacrylate and silicone-acrylate emulsion. The invention has the beneficial effects that the corrosion resistance, the wear resistance, the weather resistance and the anti-pollution flashover performance of the insulator can be improved by forming the first protective layer and the second protective layer on the surface of the insulator matrix.
Description
Technical Field
The invention relates to the technical field of insulators, in particular to a column insulator and a manufacturing method thereof.
Background
The insulator is a special insulation control and can play an important role in overhead transmission lines. The early-year insulator is mainly used for a telegraph pole, is slowly developed on one end of a high-voltage wire connecting tower, is hung with a plurality of disc-shaped insulators, plays two basic roles in an overhead transmission line, namely supporting a wire and preventing current from flowing back to the ground, and is also used for increasing the creepage distance. Insulators are classified into a plurality of types, and can be classified into pillar insulators, suspension insulators, needle insulators, butterfly insulators and tension insulators according to structures. The porcelain insulator, the glass insulator and the composite insulator are classified according to the insulating materials used.
The insulator is in the external natural environment throughout the year, so that various natural condition changes and various climate changes can have great influence on the insulator, such as the insulator is easy to be wetted in rainy and snowy weather, ice and snow can be covered in frost weather, lightning strike can also have certain influence, and the insulator is easy to be flashover. In addition, however, the insulator for the overhead contact system of the electrified railway is most likely to be greatly damaged, namely, flashover caused by pollution. The number of pollution flashovers is not much in several external insulations, but the loss caused by the pollution flashovers is the largest, the requirement on the surface of the insulator which is 10 times of the damage caused by lightning flashovers is very high, and the pollution flashovers which occur under the working voltage are likely to be a problem when a large piece of insulator is simultaneously caused once the pollution flashovers occur in a relatively wide region due to the fact that the natural conditions of the atmospheric environment and the like are basically consistent, so that the realization of the self-cleaning property of the insulator is very important.
With the rapid development of industry and the rapid increase of power transmission capacity, the voltage level of power transmission and transformation equipment is continuously improved, the pollution flashover accidents of insulators of a power system are increasingly prominent, the occurrence area of the pollution flashover accidents is large, the reclosing success rate is reduced, long-time power failure is often caused, heavy loss is caused for users, and great harm is brought to national economy.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a column insulator and a manufacturing method thereof.
The technical scheme of the invention is as follows:
a column insulator comprises an insulator matrix, a first protective layer and a second protective layer which are sequentially covered on the surface of the insulator matrix, wherein,
The raw materials for forming the first protective layer comprise: silicon carbide, polyvinyl alcohol, fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material;
the raw materials for forming the second protective layer comprise: modified epoxy resin/montmorillonite composite material, modified hydrophobic silicon dioxide, polyacrylate and silicone-acrylate emulsion.
Preferably, the first protective layer is formed by the following raw materials in parts by weight: 2-4 parts of silicon carbide, 5-6 parts of polyvinyl alcohol, 5-10 parts of fraxinus mandshurica clay/glass fiber composite material, 2-4 parts of wollastonite and 6-12 parts of diatomite/nano calcium carbonate composite material.
Preferably, the second protective layer is formed by the following raw materials in parts by weight: 20-30 parts of modified epoxy resin/montmorillonite composite material, 3-5 parts of modified hydrophobic silicon dioxide, 5-8 parts of polyacrylate and 2-3 parts of silicone-acrylate emulsion.
Preferably, the preparation method of the diatomite/nano calcium carbonate composite material comprises the following steps: 3-4 g of cyclohexane and 4-5 g of triethylamine are mixed to prepare a solution, then 0.8-1 g of tetrabutyl titanate and 0.6-0.8 g of stearic acid are added, ammonia water is added dropwise into the system after stirring and mixing, the pH value of the system is regulated to 7.8, then 4-5 g of kieselguhr, 4-5 g of nano calcium carbonate and 0.08-0.1 g of sodium dodecyl sulfate are added, the system is heated to 112-118 ℃ after uniform mixing, the reaction is carried out for 0.5-1 h, and finally the kieselguhr/nano calcium carbonate composite material is obtained after drying.
Preferably, the preparation method of the fraxinus mandshurica clay/glass fiber composite material comprises the following steps: adding 10g of fraxinus mandshurica clay into 0.01g of silane coupling agent for modification treatment, and drying to obtain modified fraxinus mandshurica clay; adding 1g of glass fiber into 30mL of ethanol, performing ultrasonic dispersion for 20-30min, adding the modified fraxinus mandshurica clay, continuing ultrasonic dispersion for 30-40 min, and finally drying to obtain fraxinus mandshurica clay/glass fiber composite material.
Preferably, the preparation method of the modified hydrophobic silica comprises the following steps: putting nano SiO 2 into a muffle furnace, heating to 200-300 ℃ at the speed of 3-5 ℃/min, and then preserving heat for 2-4 h; taking out and cooling nano SiO 2, adding the cooled nano SiO 2 into absolute ethyl alcohol, slowly adding vinyl triethoxysilane, and reacting the nano SiO 2 and the vinyl triethoxysilane for 20-30 hours at the temperature of 60-80 ℃ in a mass ratio of 1:0.8-1.5; finally, the treated nano SiO 2 is put into a muffle furnace, heated to 150-200 ℃ at the speed of 1-3 ℃/min, and then is preserved for 2-4 hours, thus obtaining the modified hydrophobic silica.
Preferably, the preparation method of the modified epoxy resin/montmorillonite composite material comprises the following steps: mixing 6-8 parts of 1H, 2H-perfluoro octyl triethoxysilane, 4-5 parts of trifluoropropyl methyl cyclotrisiloxane, 10 parts of water and 50 parts of absolute ethyl alcohol to obtain a modified mixed solution; then adding 5-10 parts of montmorillonite into the modified mixed solution, heating to 80-90 ℃, preserving heat for 3-4 hours, naturally cooling, and standing for 10-20 hours; and finally, adding 3-5 parts of polytetrafluoroethylene wax emulsion and 20-30 parts of epoxy resin into the modified mixed solution, heating to 60-65 ℃, preserving heat for 3-4 hours, naturally cooling, and standing for 10-20 hours to obtain the modified epoxy resin/montmorillonite composite material.
The manufacturing method of the column insulator comprises the following steps:
S1, forming an insulator matrix;
S2, covering a first protection layer on the surface of the insulator matrix: mixing silicon carbide, polyvinyl alcohol, a fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material and water to form a coating, immersing an insulator matrix in the prepared coating, taking out the insulator matrix and sintering to form a first protective layer on the surface of the insulator matrix;
S3, covering a second protective layer on the surface of the insulator matrix: and mixing the modified epoxy resin/montmorillonite composite material, the modified hydrophobic silica, the polyacrylate, the silicone-acrylate emulsion and the modified hydrophobic silica to form a coating, covering the coating on the surface of the insulator matrix by a spraying process to form a second protective layer, and drying.
Preferably, in the step S2, the sintering method includes heating the insulator substrate to 500-600 ℃ at a heating rate of 3-5 ℃/min, preserving heat for 30-50 min, heating to 950-1100 ℃ at a heating rate of 6-10 ℃/min, and preserving heat for 60-100 min; then cooling to 750-850 ℃ at a cooling speed of 3-5 ℃/min, preserving heat for 20-40 min, and cooling to room temperature to form a first protective layer on the surface of the insulator matrix;
Preferably, in the step S2, the pressure of the air compressor in the spraying process is 0.8 to 0.95Mpa.
The invention has at least one of the following beneficial effects:
According to the invention, the corrosion resistance, the wear resistance, the weather resistance and the anti-pollution flashover performance of the insulator can be improved by forming the first protective layer and the second protective layer on the surface of the insulator matrix.
The silicon carbide and wollastonite in the first protective layer have stable chemical properties, and can improve the corrosion resistance and weather resistance of the insulator. The diatomite/nano calcium carbonate composite material in the first protective layer is subjected to surface modification, so that the agglomeration of nano calcium carbonate is reduced, the modified nano calcium carbonate is uniformly dispersed in the diatomite, titanium dioxide is formed on the surface of the composite material, the corrosion resistance and weather resistance of the insulator can be improved, the diatomite can be fused into the insulator matrix in the sintering process, the bonding strength of the first protective layer and the insulator matrix is improved, and the structural strength of the insulator is enhanced. The composite material of the fraxinus mandshurica clay/glass fiber in the first protective layer can improve the compactness of the insulator and the bonding strength with the insulator matrix, and can provide a good coating surface for the second protective layer, in particular, the fraxinus mandshurica clay and the glass fiber are modified, so that the glass fiber can be uniformly dispersed in the fraxinus mandshurica clay, the aggregation of the glass fiber is reduced, the fraxinus mandshurica clay is fused with the insulator matrix in the sintering process, the structural strength of the insulator can be improved, meanwhile, the bonding strength of the first protective layer and the insulator matrix can be improved by the glass fiber, and the good coating surface can be provided for the second protective layer, so that the second protective layer can be firmly attached to the first protective layer. The polyvinyl alcohol has a large number of hydroxyl groups on the surface, and can generate covalent bonds with the first protective layer and the second protective layer, so that the bonding strength between the second protective layer and the insulator matrix is improved.
In the second protective layer, the modified epoxy resin and the montmorillonite are compounded, so that the modified epoxy resin and the montmorillonite have a superhydrophobic effect, the bonding property with the first protective layer can be improved, the silicon dioxide is modified to obtain the modified hydrophobic silicon dioxide, the modified hydrophobic silicon dioxide has the superhydrophobic effect, the silicone-acrylate emulsion has the effects of hydrophobicity and low surface energy, the polyacrylate can improve the bonding property with the first protective layer, and the modified epoxy resin/montmorillonite composite material, the modified hydrophobic silicon dioxide, the polyacrylate and the silicone-acrylate emulsion can improve the hydrophobicity through the combined action, so that the insulator has anti-pollution flashover performance.
When the first protective layer is sintered, the temperature is raised to sinter and the temperature is kept for a period of time, so that water in the raw material is further discharged. Then continuously heating and sintering, and preserving heat for a period of time to further sinter the unsintered components so as to relieve the volume change of the first protective layer; and finally, cooling and preserving heat for a period of time, so that the prepared first protective layer and insulator base structure are compact and have stronger combination property.
Detailed Description
The present invention will be described in further detail with reference to the following specific examples, but the present invention is not limited to the following specific examples.
Example 1
A column insulator comprises an insulator matrix, a first protective layer and a second protective layer which are sequentially covered on the surface of the insulator matrix, wherein,
The first protective layer is formed by the following raw materials in parts by weight: 2 parts of silicon carbide, 5 parts of polyvinyl alcohol, 5 parts of a fraxinus mandshurica clay/glass fiber composite material, 2 parts of wollastonite and 6 parts of a diatomite/nano calcium carbonate composite material.
The second protective layer is formed by the following raw materials in parts by weight: 20 parts of modified epoxy resin/montmorillonite composite material, 3 parts of modified hydrophobic silicon dioxide, 5 parts of polyacrylate and 2 parts of silicone-acrylic emulsion.
The preparation method of the diatomite/nano calcium carbonate composite material comprises the following steps: 3g of cyclohexane and 4g of triethylamine are mixed to prepare a solution, then 0.8g of tetrabutyl titanate and 0.6g of stearic acid are added, ammonia water is added dropwise into the system after stirring and mixing, the pH value of the system is regulated to 7.8, then 4g of kieselguhr, 4g of nano calcium carbonate and 0.08g of sodium dodecyl sulfate are added, the system is heated to 112 ℃ after uniform mixing, the reaction is carried out for 1 hour, and finally the kieselguhr/nano calcium carbonate composite material is obtained after drying.
The preparation method of the fraxinus mandshurica clay/glass fiber composite material comprises the following steps: adding 10g of fraxinus mandshurica clay into 0.01g of silane coupling agent kh550 for modification treatment, and drying to obtain modified fraxinus mandshurica clay; adding 1g of glass fiber into 30mL of ethanol, performing ultrasonic dispersion for 20min, adding the modified fraxinus mandshurica clay, continuing ultrasonic dispersion for 30min, and finally drying to obtain fraxinus mandshurica clay/glass fiber composite material.
The preparation method of the modified hydrophobic silica comprises the following steps: putting nano SiO 2 into a muffle furnace, heating to 200 ℃ at a speed of 3 ℃/min, and then preserving heat for 2 hours; taking out and cooling nano SiO 2, adding the cooled nano SiO 2 into absolute ethyl alcohol, slowly adding vinyl triethoxysilane, enabling the mass ratio of nano SiO 2 to vinyl triethoxysilane to be 1:0.8, and reacting at 60 ℃ for 20 hours; and finally, placing the treated nano SiO 2 into a muffle furnace, heating to 150 ℃ at a speed of 1 ℃/min, and then preserving heat for 2 hours to obtain the modified hydrophobic silica.
The preparation method of the modified epoxy resin/montmorillonite composite material comprises the following steps: mixing 6 parts of 1H, 2H-perfluoro octyl triethoxysilane, 4 parts of trifluoropropyl methyl cyclotrisiloxane, 10 parts of water and 50 parts of absolute ethyl alcohol to obtain a modified mixed solution; then adding 5 parts of montmorillonite into the modified mixed solution, heating to 80 ℃, preserving heat for 3 hours, naturally cooling, and standing for 10 hours; and finally, adding 3 parts of polytetrafluoroethylene wax emulsion and 20 parts of epoxy resin into the modified mixed solution, heating to 60 ℃, preserving heat for 3 hours, naturally cooling, and standing for 10 hours to obtain the modified epoxy resin/montmorillonite composite material.
The manufacturing method of the column insulator comprises the following steps:
S1, forming an insulator matrix;
S2, covering a first protection layer on the surface of the insulator matrix: mixing silicon carbide, polyvinyl alcohol, a fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material and water to form a coating, immersing an insulator matrix in the prepared coating, taking out the insulator matrix for sintering, specifically comprising the steps of heating the insulator matrix to 500 ℃ at a heating rate of 3 ℃/min, preserving heat for 30min, heating to 950 ℃ at a heating rate of 6 ℃/min, and preserving heat for 60min; then cooling to 750 ℃ at a cooling speed of 3 ℃/min, preserving heat for 20min, and cooling to room temperature to form a first protective layer on the surface of the insulator matrix;
S3, covering a second protective layer on the surface of the insulator matrix: the modified epoxy resin/montmorillonite composite material, the modified hydrophobic silica, the polyacrylate, the silicone-acrylate emulsion and the mixture are mixed to form a coating, the coating is covered on the surface of the insulator matrix through a spraying process to form a second protective layer, and the pressure of an air compressor in the spraying process is 0.8Mpa, and the coating is dried.
Example 2
A column insulator comprises an insulator matrix, a first protective layer and a second protective layer which are sequentially covered on the surface of the insulator matrix, wherein,
The first protective layer is formed by the following raw materials in parts by weight: 2.5 parts of silicon carbide, 5.2 parts of polyvinyl alcohol, 6 parts of fraxinus mandshurica clay/glass fiber composite material, 2.5 parts of wollastonite and 7 parts of kieselguhr/nano calcium carbonate composite material.
The second protective layer is formed by the following raw materials in parts by weight: 22 parts of modified epoxy resin/montmorillonite composite material, 3.5 parts of modified hydrophobic silicon dioxide, 6 parts of polyacrylate and 2 parts of silicone-acrylate emulsion.
The preparation method of the diatomite/nano calcium carbonate composite material comprises the following steps: 3.2g of cyclohexane and 4.2g of triethylamine are mixed to prepare a solution, then 0.85g of tetrabutyl titanate and 0.65g of stearic acid are added, ammonia water is added dropwise to the system after stirring and mixing, the pH value of the system is regulated to 7.8, then 4.2g of kieselguhr, 4g of nano calcium carbonate and 0.085g of sodium dodecyl sulfate are added, the system is heated to 113 ℃ after uniform mixing, the reaction is carried out for 0.6h, and finally the kieselguhr/nano calcium carbonate composite material is obtained after drying.
The preparation method of the fraxinus mandshurica clay/glass fiber composite material comprises the following steps: adding 10g of fraxinus mandshurica clay into 0.01g of silane coupling agent kh550 for modification treatment, and drying to obtain modified fraxinus mandshurica clay; adding 1g of glass fiber into 30mL of ethanol, performing ultrasonic dispersion for 25min, adding the modified fraxinus mandshurica clay, continuing ultrasonic dispersion for 35min, and finally drying to obtain fraxinus mandshurica clay/glass fiber composite material.
The preparation method of the modified hydrophobic silica comprises the following steps: putting nano SiO 2 into a muffle furnace, heating to 220 ℃ at a speed of 3 ℃/min, and then preserving heat for 2.5h; taking out and cooling nano SiO 2, adding the cooled nano SiO 2 into absolute ethyl alcohol, slowly adding vinyl triethoxysilane, enabling the mass ratio of nano SiO 2 to vinyl triethoxysilane to be 1:1, and reacting at 65 ℃ for 22 hours; and finally, placing the treated nano SiO 2 into a muffle furnace, heating to 160 ℃ at a speed of 1 ℃/min, and then preserving heat for 2.5 hours to obtain the modified hydrophobic silica.
The preparation method of the modified epoxy resin/montmorillonite composite material comprises the following steps: mixing 6.5 parts of 1H, 2H-perfluoro octyl triethoxysilane, 4.5 parts of trifluoropropyl methyl cyclotrisiloxane, 10 parts of water and 50 parts of absolute ethyl alcohol to obtain a modified mixed solution; then adding 6 parts of montmorillonite into the modified mixed solution, heating to 82 ℃, preserving heat for 3 hours, naturally cooling, and standing for 12 hours; and finally, adding 3.5 parts of polytetrafluoroethylene wax emulsion and 22 parts of epoxy resin into the modified mixed solution, heating to 61 ℃, preserving heat for 3 hours, naturally cooling, and standing for 12 hours to obtain the modified epoxy resin/montmorillonite composite material.
The manufacturing method of the column insulator comprises the following steps:
S1, forming an insulator matrix;
S2, covering a first protection layer on the surface of the insulator matrix: mixing silicon carbide, polyvinyl alcohol, a fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material and water to form a coating, immersing an insulator matrix in the prepared coating, taking out the insulator matrix for sintering, specifically comprising the steps of heating the insulator matrix to 520 ℃ at a heating rate of 3 ℃/min, preserving heat for 35min, heating to 980 ℃ at a heating rate of 7 ℃/min, and preserving heat for 70min; then cooling to 780 ℃ at a cooling speed of 3 ℃/min, preserving heat for 25min, and cooling to room temperature to form a first protective layer on the surface of the insulator matrix;
S3, covering a second protective layer on the surface of the insulator matrix: the modified epoxy resin/montmorillonite composite material, the modified hydrophobic silica, the polyacrylate, the silicone-acrylate emulsion and the mixture are mixed to form a coating, the coating is covered on the surface of the insulator matrix through a spraying process to form a second protective layer, and the pressure of an air compressor in the spraying process is 0.85Mpa, and the coating is dried.
Example 3
A column insulator comprises an insulator matrix, a first protective layer and a second protective layer which are sequentially covered on the surface of the insulator matrix, wherein,
The first protective layer is formed by the following raw materials in parts by weight: 3 parts of silicon carbide, 5.5 parts of polyvinyl alcohol, 7.5 parts of fraxinus mandshurica clay/glass fiber composite material, 3 parts of wollastonite, and 9 parts of diatomite/nano calcium carbonate composite material.
The second protective layer is formed by the following raw materials in parts by weight: 25 parts of modified epoxy resin/montmorillonite composite material, 4 parts of modified hydrophobic silicon dioxide, 7 parts of polyacrylate and 2.5 parts of silicone-acrylic emulsion.
The preparation method of the diatomite/nano calcium carbonate composite material comprises the following steps: 3.5g of cyclohexane and 4.5g of triethylamine are mixed to prepare a solution, then 0.9g of tetrabutyl titanate and 0.7g of stearic acid are added, ammonia water is added dropwise to the system after stirring and mixing, the pH value of the system is regulated to 7.8, then 4g of diatomite, 4.5g of nano calcium carbonate and 0.09g of sodium dodecyl sulfate are added, the system is heated to 114 ℃ after uniform mixing, the reaction is carried out for 0.6h, and finally the diatomite/nano calcium carbonate composite material is obtained after drying.
The preparation method of the fraxinus mandshurica clay/glass fiber composite material comprises the following steps: adding 10g of fraxinus mandshurica clay into 0.01g of silane coupling agent kh550 for modification treatment, and drying to obtain modified fraxinus mandshurica clay; adding 1g of glass fiber into 30mL of ethanol, performing ultrasonic dispersion for 25min, adding the modified fraxinus mandshurica clay, continuing ultrasonic dispersion for 35min, and finally drying to obtain fraxinus mandshurica clay/glass fiber composite material.
The preparation method of the modified hydrophobic silica comprises the following steps: putting nano SiO 2 into a muffle furnace, heating to 250 ℃ at the speed of 45 ℃/min, and then preserving heat for 2h; taking out and cooling nano SiO 2, adding the cooled nano SiO 2 into absolute ethyl alcohol, slowly adding vinyl triethoxysilane, and reacting the nano SiO 2 and the vinyl triethoxysilane for 25 hours at 70 ℃; and finally, placing the treated nano SiO 2 into a muffle furnace, heating to 180 ℃ at a speed of 2 ℃/min, and then preserving heat for 3 hours to obtain the modified hydrophobic silica.
The preparation method of the modified epoxy resin/montmorillonite composite material comprises the following steps: 7 parts of 1H, 2H-perfluoro octyl triethoxysilane, 4.5 parts of trifluoropropyl methyl cyclotrisiloxane, 10 parts of water and 50 parts of absolute ethyl alcohol are mixed to obtain a modified mixed solution; then adding 7.5 parts of montmorillonite into the modified mixed solution, heating to 85 ℃, preserving heat for 3.5 hours, naturally cooling, and standing for 15 hours; and finally, adding 4 parts of polytetrafluoroethylene wax emulsion and 25 parts of epoxy resin into the modified mixed solution, heating to 62 ℃, preserving heat for 3.5 hours, naturally cooling, and standing for 15 hours to obtain the modified epoxy resin/montmorillonite composite material.
The manufacturing method of the column insulator comprises the following steps:
S1, forming an insulator matrix;
S2, covering a first protection layer on the surface of the insulator matrix: mixing silicon carbide, polyvinyl alcohol, a fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material and water to form a coating, immersing an insulator matrix in the prepared coating, taking out the insulator matrix for sintering, specifically comprising the steps of heating the insulator matrix to 550 ℃ at a heating rate of 4 ℃/min, preserving heat for 40min, heating to 1000 ℃ at a heating rate of 8 ℃/min, and preserving heat for 80min; then cooling to 800 ℃ at a cooling speed of 4 ℃/min, preserving heat for 30min, and cooling to room temperature to form a first protective layer on the surface of the insulator matrix;
s3, covering a second protective layer on the surface of the insulator matrix: the modified epoxy resin/montmorillonite composite material, the modified hydrophobic silica, the polyacrylate, the silicone-acrylate emulsion and the mixture are mixed to form a coating, the coating is covered on the surface of the insulator matrix through a spraying process to form a second protective layer, and the pressure of an air compressor in the spraying process is 0.9Mpa, and the coating is dried.
Example 4
A column insulator comprises an insulator matrix, a first protective layer and a second protective layer which are sequentially covered on the surface of the insulator matrix, wherein,
The first protective layer is formed by the following raw materials in parts by weight: 3.5 parts of silicon carbide, 5.8 parts of polyvinyl alcohol, 9 parts of a fraxinus mandshurica clay/glass fiber composite material, 3.5 parts of wollastonite and 10 parts of a diatomite/nano calcium carbonate composite material.
The second protective layer is formed by the following raw materials in parts by weight: 28 parts of modified epoxy resin/montmorillonite composite material, 4.5 parts of modified hydrophobic silicon dioxide, 7 parts of polyacrylate and 2.8 parts of silicone-acrylate emulsion.
The preparation method of the diatomite/nano calcium carbonate composite material comprises the following steps: 3.8g of cyclohexane and 4.8g of triethylamine are mixed to prepare a solution, then 0.95g of tetrabutyl titanate and 0.75g of stearic acid are added, ammonia water is added dropwise to the system after stirring and mixing, the pH value of the system is regulated to 7.8, then 4.5g of kieselguhr, 4.2g of nano calcium carbonate and 0.095g of sodium dodecyl sulfate are added, the system is heated to 117 ℃ after uniform mixing, the reaction is carried out for 0.9h, and finally the kieselguhr/nano calcium carbonate composite material is obtained after drying.
The preparation method of the fraxinus mandshurica clay/glass fiber composite material comprises the following steps: adding 10g of fraxinus mandshurica clay into 0.01g of silane coupling agent kh550 for modification treatment, and drying to obtain modified fraxinus mandshurica clay; adding 1g of glass fiber into 30mL of ethanol, performing ultrasonic dispersion for 25min, adding the modified fraxinus mandshurica clay, continuing ultrasonic dispersion for 35min, and finally drying to obtain fraxinus mandshurica clay/glass fiber composite material.
The preparation method of the modified hydrophobic silica comprises the following steps: putting nano SiO 2 into a muffle furnace, heating to 280 ℃ at the speed of 4 ℃/min, and then preserving heat for 3 hours; taking out and cooling nano SiO 2, adding the nano SiO 2 into absolute ethyl alcohol, slowly adding vinyl triethoxysilane, enabling the mass ratio of nano SiO 2 to vinyl triethoxysilane to be 1:1.2, and reacting at 75 ℃ for 28h; and finally, placing the treated nano SiO 2 into a muffle furnace, heating to 180 ℃ at a speed of 3 ℃/min, and then preserving heat for 3 hours to obtain the modified hydrophobic silica.
The preparation method of the modified epoxy resin/montmorillonite composite material comprises the following steps: 7.5 parts of 1H, 2H-perfluoro octyl triethoxysilane, 4.8 parts of trifluoropropyl methyl cyclotrisiloxane, 10 parts of water and 50 parts of absolute ethyl alcohol are mixed to obtain a modified mixed solution; then adding 9 parts of montmorillonite into the modified mixed solution, heating to 88 ℃, preserving heat for 3.5 hours, naturally cooling, and standing for 18 hours; and finally, adding 4.5 parts of polytetrafluoroethylene wax emulsion and 28 parts of epoxy resin into the modified mixed solution, heating to 64 ℃, preserving heat for 3 hours, naturally cooling, and standing for 18 hours to obtain the modified epoxy resin/montmorillonite composite material.
The manufacturing method of the column insulator comprises the following steps:
S1, forming an insulator matrix;
S2, covering a first protection layer on the surface of the insulator matrix: mixing silicon carbide, polyvinyl alcohol, a fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material and water to form a coating, immersing an insulator matrix in the prepared coating, taking out the insulator matrix for sintering, specifically comprising the steps of heating the insulator matrix to 580 ℃ at a heating rate of 4 ℃/min, preserving heat for 50min, heating to 1050 ℃ at a heating rate of 7 ℃/min, and preserving heat for 90min; cooling to 820 ℃ at a cooling speed of 4 ℃/min, preserving heat for 30min, and cooling to room temperature to form a first protective layer on the surface of the insulator matrix;
s3, covering a second protective layer on the surface of the insulator matrix: the modified epoxy resin/montmorillonite composite material, the modified hydrophobic silica, the polyacrylate, the silicone-acrylate emulsion and the mixture are mixed to form a coating, the coating is covered on the surface of the insulator matrix through a spraying process to form a second protective layer, and the pressure of an air compressor in the spraying process is 0.9Mpa, and the coating is dried.
Example 5
A column insulator comprises an insulator matrix, a first protective layer and a second protective layer which are sequentially covered on the surface of the insulator matrix, wherein,
The first protective layer is formed by the following raw materials in parts by weight: 4 parts of silicon carbide, 6 parts of polyvinyl alcohol, 10 parts of a fraxinus mandshurica clay/glass fiber composite material, 4 parts of wollastonite and 12 parts of a diatomite/nano calcium carbonate composite material.
The second protective layer is formed by the following raw materials in parts by weight: 30 parts of modified epoxy resin/montmorillonite composite material, 5 parts of modified hydrophobic silicon dioxide, 8 parts of polyacrylate and 3 parts of silicone-acrylic emulsion.
The preparation method of the diatomite/nano calcium carbonate composite material comprises the following steps: mixing 4g of cyclohexane and 5g of triethylamine to prepare a solution, then adding 1g of tetrabutyl titanate and 0.8g of stearic acid, stirring and mixing, then dropwise adding ammonia water into the system, adjusting the pH value of the system to 7.8, then adding 5g of diatomite, 5g of nano calcium carbonate and 0.1g of sodium dodecyl sulfate, uniformly mixing, heating the system to 118 ℃, reacting for 1h, and finally drying to obtain the diatomite/nano calcium carbonate composite material.
The preparation method of the fraxinus mandshurica clay/glass fiber composite material comprises the following steps: adding 10g of fraxinus mandshurica clay into 0.01g of silane coupling agent kh550 for modification treatment, and drying to obtain modified fraxinus mandshurica clay; adding 1g of glass fiber into 30mL of ethanol, performing ultrasonic dispersion for 30min, adding the modified fraxinus mandshurica clay, continuing ultrasonic dispersion for 40min, and finally drying to obtain fraxinus mandshurica clay/glass fiber composite material.
The preparation method of the modified hydrophobic silica comprises the following steps: putting nano SiO 2 into a muffle furnace, heating to 300 ℃ at a speed of 5 ℃/min, and then preserving heat for 2-4 h; taking out and cooling nano SiO 2, adding the cooled nano SiO 2 into absolute ethyl alcohol, slowly adding vinyl triethoxysilane, and reacting the nano SiO 2 and the vinyl triethoxysilane for 30 hours at 60-80 ℃ in a mass ratio of 1:1.5; and finally, placing the treated nano SiO 2 into a muffle furnace, raising the temperature to 200 ℃ at the speed of 3 ℃/min, and then preserving the temperature for 4 hours to obtain the modified hydrophobic silica.
The preparation method of the modified epoxy resin/montmorillonite composite material comprises the following steps: mixing 8 parts of 1H, 2H-perfluoro octyl triethoxysilane, 5 parts of trifluoropropyl methyl cyclotrisiloxane, 10 parts of water and 50 parts of absolute ethyl alcohol to obtain a modified mixed solution; then adding 10 parts of montmorillonite into the modified mixed solution, heating to 90 ℃, preserving heat for 4 hours, naturally cooling, and standing for 20 hours; and finally, adding 5 parts of polytetrafluoroethylene wax emulsion and 30 parts of epoxy resin into the modified mixed solution, heating to 65 ℃, preserving heat for 4 hours, naturally cooling, and standing for 20 hours to obtain the modified epoxy resin/montmorillonite composite material.
The manufacturing method of the column insulator comprises the following steps:
S1, forming an insulator matrix;
S2, covering a first protection layer on the surface of the insulator matrix: mixing silicon carbide, polyvinyl alcohol, a fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material and water to form a coating, immersing an insulator matrix in the prepared coating, taking out the insulator matrix for sintering, specifically comprising the steps of heating the insulator matrix to 600 ℃ at a heating rate of 5 ℃/min, preserving heat for 50min, heating to 1100 ℃ at a heating rate of 10 ℃/min, and preserving heat for 100min; cooling to 850 ℃ at a cooling speed of 5 ℃/min, preserving heat for 40min, and cooling to room temperature to form a first protective layer on the surface of the insulator matrix;
s3, covering a second protective layer on the surface of the insulator matrix: mixing the modified epoxy resin/montmorillonite composite material, modified hydrophobic silica, polyacrylate and silicone-acrylate emulsion to form a coating, covering the surface of the insulator matrix by a spraying process to form a second protective layer, wherein the pressure of an air compressor in the spraying process is 0.95Mpa, and drying.
Comparative example 1
The difference from example 1 is that: the first protective layer is not included.
Comparative example 2
The difference from example 1 is that: the second protective layer is not included.
Testing
The insulators produced in examples 1 to 5 and comparative examples 1 to 2 were tested, and the test methods and results are shown in table 1 below:
TABLE 1
As can be seen from table 1, the contact angle of the insulators manufactured in examples 1 to 5 was greater than 150 °, the rolling angle was less than 2 °, the contact angle in the abrasion resistance test was greater than 150 °, and the effects of abrasion resistance and corrosion resistance were exhibited, so that the insulators manufactured in examples 1 to 5 had the effects of abrasion resistance, corrosion resistance, and anti-fouling flash.
As can be seen from comparing examples 1 to 5 with comparative examples 1 to 2, the abrasion resistance and corrosion resistance of examples 1 to 5 are significantly better than those of comparative example 1, thereby indicating whether the provision of the first protective layer affects the abrasion resistance and corrosion resistance of the insulator. The contact angle and the rolling angle of examples 1 to 5 were larger than those of comparative example 2, thereby indicating whether or not the first protective layer was provided or not would affect the anti-flashover performance of the insulator.
The above is merely exemplary embodiments of the present invention, and the scope of the present invention is not limited in any way. All technical schemes formed by adopting equivalent exchange or equivalent substitution fall within the protection scope of the invention.
Claims (8)
1. A column insulator is characterized by comprising an insulator matrix, a first protective layer and a second protective layer which are sequentially covered on the surface of the insulator matrix, wherein,
The raw materials for forming the first protective layer comprise: silicon carbide, polyvinyl alcohol, fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material;
the raw materials for forming the second protective layer comprise: modified epoxy resin/montmorillonite composite material, modified hydrophobic silicon dioxide, polyacrylate and silicone-acrylate emulsion;
The preparation method of the diatomite/nano calcium carbonate composite material comprises the following steps: 3-4 g of cyclohexane and 4-5 g of triethylamine are mixed to prepare a solution, then 0.8-1 g of tetrabutyl titanate and 0.6-0.8 g of stearic acid are added, ammonia water is added dropwise into the system after stirring and mixing, the pH value of the system is regulated to 7.8, then 4-5 g of kieselguhr, 4-5 g of nano calcium carbonate and 0.08-0.1 g of sodium dodecyl sulfate are added, the system is heated to 112-118 ℃ after uniform mixing, the reaction is carried out for 0.5-1 h, and finally the kieselguhr/nano calcium carbonate composite material is obtained after drying;
The preparation method of the fraxinus mandshurica clay/glass fiber composite material comprises the following steps: adding 10g of fraxinus mandshurica clay into 0.01g of silane coupling agent for modification treatment, and drying to obtain modified fraxinus mandshurica clay; adding 1g of glass fiber into 30mL of ethanol, performing ultrasonic dispersion for 20-30 min, adding the modified fraxinus mandshurica clay, continuing ultrasonic dispersion for 30-40 min, and finally drying to obtain fraxinus mandshurica clay/glass fiber composite material.
2. The column insulator of claim 1, wherein the first protective layer is formed from the following raw materials in parts by weight: 2-4 parts of silicon carbide, 5-6 parts of polyvinyl alcohol, 5-10 parts of fraxinus mandshurica clay/glass fiber composite material, 2-4 parts of wollastonite and 6-12 parts of diatomite/nano calcium carbonate composite material.
3. The column insulator of claim 1, wherein the second protective layer is formed from the following raw materials in parts by weight: 20-30 parts of modified epoxy resin/montmorillonite composite material, 3-5 parts of modified hydrophobic silicon dioxide, 5-8 parts of polyacrylate and 2-3 parts of silicone-acrylate emulsion.
4. A post insulator according to claim 1, characterized in that the preparation method of the modified hydrophobic silica comprises: putting nano SiO2 into a muffle furnace, heating to 200-300 ℃ at a speed of 3-5 ℃/min, and then preserving heat for 2-4 h; taking out and cooling nano SiO2, adding the nano SiO2 into absolute ethyl alcohol, slowly adding vinyl triethoxysilane, and reacting the nano SiO2 and the vinyl triethoxysilane for 20-30 hours at the temperature of 60-80 ℃ in a mass ratio of 1:0.8-1.5; finally, the treated nano SiO2 is put into a muffle furnace, and is heated to 150-200 ℃ at the speed of 1-3 ℃/min, and then is kept for 2-4 hours, thus obtaining the modified hydrophobic silica.
5. The column insulator of claim 1, wherein the method of preparing the modified epoxy/montmorillonite composite material comprises: mixing 6-8 parts of 1H, 2H-perfluoro octyl triethoxysilane, 4-5 parts of trifluoropropyl methyl cyclotrisiloxane, 10 parts of water and 50 parts of absolute ethyl alcohol to obtain a modified mixed solution; then adding 5-10 parts of montmorillonite into the modified mixed solution, heating to 80-90 ℃, preserving heat for 3-4 hours, naturally cooling, and standing for 10-20 hours; and finally, adding 3-5 parts of polytetrafluoroethylene wax emulsion and 20-30 parts of epoxy resin into the modified mixed solution, heating to 60-65 ℃, preserving heat for 3-4 hours, naturally cooling, and standing for 10-20 hours to obtain the modified epoxy resin/montmorillonite composite material.
6. A method of making a post insulator as defined in claim 1, comprising the steps of:
S1, forming an insulator matrix;
S2, covering a first protection layer on the surface of the insulator matrix: mixing silicon carbide, polyvinyl alcohol, a fraxinus mandshurica clay/glass fiber composite material, wollastonite, diatomite/nano calcium carbonate composite material and water to form a coating, immersing an insulator matrix in the prepared coating, taking out the insulator matrix and sintering to form a first protective layer on the surface of the insulator matrix;
S3, covering a second protective layer on the surface of the insulator matrix: and mixing the modified epoxy resin/montmorillonite composite material, the modified hydrophobic silica, the polyacrylate, the silicone-acrylate emulsion and the modified hydrophobic silica to form a coating, covering the coating on the surface of the insulator matrix by a spraying process to form a second protective layer, and drying.
7. The method for manufacturing a post insulator according to claim 6, wherein in the step S2, the sintering method comprises heating the insulator substrate to 500-600 ℃ at a heating rate of 3-5 ℃/min, preserving heat for 30-50 min, heating to 950-1100 ℃ at a heating rate of 6-10 ℃/min, and preserving heat for 60-100 min; then cooling to 750-850 ℃ at a cooling speed of 3-5 ℃/min, preserving heat for 20-40 min, and cooling to room temperature to form a first protective layer on the surface of the insulator matrix.
8. The method for manufacturing a post insulator according to claim 6, wherein in the step S2, the pressure of the air compressor in the spraying process is 0.8-0.95 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210336252.6A CN114496424B (en) | 2022-03-31 | 2022-03-31 | Column insulator and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210336252.6A CN114496424B (en) | 2022-03-31 | 2022-03-31 | Column insulator and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114496424A CN114496424A (en) | 2022-05-13 |
| CN114496424B true CN114496424B (en) | 2024-04-26 |
Family
ID=81488251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210336252.6A Active CN114496424B (en) | 2022-03-31 | 2022-03-31 | Column insulator and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114496424B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115521760A (en) * | 2022-09-27 | 2022-12-27 | 三瑞科技(江西)有限公司 | Insulator capable of preventing cement carbonization |
| CN116355508A (en) * | 2023-03-21 | 2023-06-30 | 广东美涂士建材股份有限公司 | Stain-resistant metallic paint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081607A1 (en) * | 2013-12-02 | 2015-06-11 | 国网山西省电力公司晋中供电公司 | Method for recoating rtv anti-pollution flashover coating on insulator coated with rtv anti-pollution flashover coating |
| CN206301643U (en) * | 2016-12-29 | 2017-07-04 | 厦门唯胜电气有限公司 | A kind of anti-contamination insulator |
| CN109457226A (en) * | 2018-09-12 | 2019-03-12 | 国网江苏省电力有限公司泰州供电分公司 | A kind of insulator surface coating sputtering preparation method |
| WO2021056638A1 (en) * | 2019-09-26 | 2021-04-01 | 东南大学 | Composite thermal insulation material and preparation method therefor |
| CN113956059A (en) * | 2021-11-16 | 2022-01-21 | 江西凯佳电瓷电器有限公司 | High-strength suspension insulator for high-voltage transmission line |
-
2022
- 2022-03-31 CN CN202210336252.6A patent/CN114496424B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015081607A1 (en) * | 2013-12-02 | 2015-06-11 | 国网山西省电力公司晋中供电公司 | Method for recoating rtv anti-pollution flashover coating on insulator coated with rtv anti-pollution flashover coating |
| CN206301643U (en) * | 2016-12-29 | 2017-07-04 | 厦门唯胜电气有限公司 | A kind of anti-contamination insulator |
| CN109457226A (en) * | 2018-09-12 | 2019-03-12 | 国网江苏省电力有限公司泰州供电分公司 | A kind of insulator surface coating sputtering preparation method |
| WO2021056638A1 (en) * | 2019-09-26 | 2021-04-01 | 东南大学 | Composite thermal insulation material and preparation method therefor |
| CN113956059A (en) * | 2021-11-16 | 2022-01-21 | 江西凯佳电瓷电器有限公司 | High-strength suspension insulator for high-voltage transmission line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114496424A (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114496424B (en) | Column insulator and manufacturing method thereof | |
| CN105623503B (en) | A kind of silicon rubber hydrophobic coating for insulator and preparation method thereof | |
| CN107418147B (en) | Hydrophobic electrical insulation epoxy resin composition | |
| CN112745726A (en) | High-performance organic-inorganic composite heat-reflection waterproof coating, and preparation method and application thereof | |
| CN110204942B (en) | Preparation method of normal-temperature curing nano anticorrosive paint for metal surface in marine environment | |
| CN113480907A (en) | Preparation method of spherical stain-resistant pin insulator | |
| CN114933854A (en) | Light high-thixotropic single-component insulating paint | |
| CN111040622B (en) | Super-voltage-resistant flame-retardant heat-conducting organic silicon insulating coating | |
| CN112940568A (en) | Column type composite insulator | |
| CN116102973B (en) | Aging-resistant insulating coating material and preparation method thereof | |
| CN113831772B (en) | Nano flame-retardant concrete protective coating and preparation method thereof | |
| CN114133861B (en) | Weather-proof and anti-icing composite insulator umbrella skirt sheath and preparation method and application thereof | |
| CN116285674B (en) | Special anti-icing intrinsic flame-retardant insulating silicone coating for cable line cladding | |
| CN114141455A (en) | Preparation method of high-strength column type porcelain insulator | |
| CN113278396A (en) | Modified epoxy polyurethane sealant and preparation method thereof | |
| CN101824255B (en) | Freezing disaster resistant power grid coating | |
| CN106065138A (en) | A kind of steel-tape armouring aluminium alloy power cable of anti-long-term ultraviolet ageing | |
| CN112029345A (en) | High-flame-retardant tracking-resistant super-hydrophobic fluorocarbon coating and preparation method and application thereof | |
| CN113402932A (en) | Self-cleaning type high strength clavate porcelain insulator | |
| CN116102976B (en) | Special anti-icing flame-retardant insulating silicon coating for cable line cladding | |
| CN117025033B (en) | Electric penetration resistant paint and production process thereof | |
| CN109749623A (en) | Antirust weathering brushes high molecular material and its preparation method and application | |
| CN111675911B (en) | Anti-icing cable outer sheath and preparation method thereof | |
| CN112341756B (en) | Organic silicon modified epoxy resin for robot insulating clothes and preparation method thereof | |
| CN114283999B (en) | Manufacturing method of medium-pressure resin cast insulated bus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |