CN113337078B - SF6Quick-curing leaking stoppage repairing material for gas equipment and preparation method thereof - Google Patents
SF6Quick-curing leaking stoppage repairing material for gas equipment and preparation method thereof Download PDFInfo
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- CN113337078B CN113337078B CN202110442958.6A CN202110442958A CN113337078B CN 113337078 B CN113337078 B CN 113337078B CN 202110442958 A CN202110442958 A CN 202110442958A CN 113337078 B CN113337078 B CN 113337078B
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- 239000000463 material Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 75
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 35
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 35
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 33
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 32
- 239000010703 silicon Substances 0.000 claims abstract description 32
- 239000003822 epoxy resin Substances 0.000 claims abstract description 31
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 31
- 230000008439 repair process Effects 0.000 claims abstract description 31
- 229920001046 Nanocellulose Polymers 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 17
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 16
- 229910018503 SF6 Inorganic materials 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 238000007865 diluting Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 7
- 230000004048 modification Effects 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 abstract description 4
- 239000001913 cellulose Substances 0.000 abstract description 4
- 239000012767 functional filler Substances 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 30
- 239000008204 material by function Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- QHMQWEPBXSHHLH-UHFFFAOYSA-N sulfur tetrafluoride Chemical compound FS(F)(F)F QHMQWEPBXSHHLH-UHFFFAOYSA-N 0.000 description 3
- OBTWBSRJZRCYQV-UHFFFAOYSA-N sulfuryl difluoride Chemical compound FS(F)(=O)=O OBTWBSRJZRCYQV-UHFFFAOYSA-N 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000013538 functional additive Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000005935 Sulfuryl fluoride Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- LSJNBGSOIVSBBR-UHFFFAOYSA-N thionyl fluoride Chemical compound FS(F)=O LSJNBGSOIVSBBR-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention provides an SF6The quick-curing leaking stoppage repair material for the gas equipment comprises a component A and a component B; the component A comprises the following raw material components: organic silicon modified epoxy resin, nano silicon dioxide, nano zinc powder, nano ferroferric oxide, lanthanum oxide, nano cellulose and liquid polybutadiene; the component B comprises the following raw material components: curing agent, nano silicon dioxide, nano zinc powder, nano ferroferric oxide, lanthanum oxide and nano cellulose. According to the invention, the nano-silica, the nano-zinc powder, the nano-ferroferric oxide, the lanthanum oxide, the nano-cellulose and the liquid polybutadiene with specific dosages are adopted as the functional addition materials of the organic silicon modified epoxy resin, so that the problem of greatly reduced curing speed caused by adding the functional filler into the organic silicon modified epoxy resin is solved, and the toughness, the strength, the pressure resistance, the hardness, the adhesion property and the like of the repairing material can be effectively improved on the premise of ensuring the rapid curing.
Description
Technical Field
The invention relates to the field of repair materials, in particular to a quick-curing leaking stoppage repair material for SF6 gas equipment and a preparation method thereof.
Background
SF6The electrical insulation and arc extinguishing performance of the gas are closely related to the pressure thereof, and the insulation strength thereof increases as the gas pressure increases. When SF6When gas leakage exists in gas equipment, the pressure of a gas chamber is gradually reduced, the insulating property and the arc extinguishing property are both greatly reduced, if the gas leakage point cannot be reliably treated well, gas must be supplemented frequently to meet the operation requirement, the maintenance and use cost is greatly increased, and even single-phase to ground discharge and even interphase short circuit faults of the system can be generated under severe conditions such as overvoltage and the like, so that the safe operation of a power grid is influenced. And leaked SF6The gas may generate various toxic and corrosive gases or solid decomposition products, such as sulfuryl fluoride (SO)2F2) Thionyl fluoride (SOF)2) Hydrogen sulfide (H)2S), sulfur dioxide (SO)2) Sulfur tetrafluoride (SF)4) Sulfur tetrafluoride (SOF)4) Etc., in which the most toxic SO is2F2And SOF2Gas at SF6Under the condition of free diffusion of long-term leakage, serious health threat can be formed to workers in the transformer substation. Thus, at SF6Leakage points appear in gas equipment, and when leakage occurs, a leakage stopping agent is needed to be adopted to stop the leakage pointsThe existing plugging materials are mostly cured for a long time and cannot meet SF (sulfur hexafluoride) requirements6The gas equipment needs the requirement of pressurized leakage stoppage and is difficult to be applied to SF6And repairing the leakage point of the gas equipment.
Therefore, for fast control of SF6Repairing leakage point of gas equipment to ensure SF6When gas equipment is normally used, a leaking stoppage repairing material capable of being quickly cured needs to be developed, and a repairing layer with excellent adhesion, pressure resistance, thermal stability, hardness, toughness and strength can be formed at a leaking point by using the leaking stoppage repairing material to repair the leaking point.
Disclosure of Invention
In view of the above, the present invention provides an SF6The quick-curing leaking stoppage repair material for the gas equipment can be quickly cured at a leakage point of the equipment to form a repair layer with excellent adhesion, pressure resistance, thermal stability, hardness, toughness and strength at normal temperature, and a preparation method of the repair material is also provided.
SF provided by the invention6The quick-curing leaking stoppage repair material for the gas equipment comprises a component A and a component B;
the component A comprises the following raw material components in parts by weight: 50-55 parts of organic silicon modified epoxy resin, 10-15 parts of nano silicon dioxide, 10-15 parts of nano zinc powder, 15-20 parts of nano ferroferric oxide, 0.5-0.6 part of lanthanum oxide, 0.2-0.3 part of nano cellulose and 10-20 parts of liquid polybutadiene;
the component B comprises the following raw material components in parts by weight: 50-55 parts of curing agent, 10-15 parts of nano silicon dioxide, 10-15 parts of nano zinc powder, 20-25 parts of nano ferroferric oxide, 0.5-0.6 part of lanthanum oxide and 0.2-0.3 part of nano cellulose;
before use, the A component and the B component are mixed according to the ratio of 3: 1.8-2.2 by mass.
The invention adopts nano silicon dioxide, nano zinc powder, nano ferroferric oxide, lanthanum oxide, nano cellulose and liquid polybutadiene with specific dosage as functional additive of organic silicon modified epoxy resinThe material overcomes the problem of greatly reduced curing speed caused by adding functional filler into the organic silicon modified epoxy resin in the traditional process, and can effectively improve the toughness, strength, pressure resistance, hardness, adhesion property, thermal stability and the like of the repair material on the premise of ensuring normal-temperature quick curing through the mutual matching of the functional materials with specific proportions, thereby weakening the adverse effect on the curing speed of the organic silicon modified epoxy resin caused by adding the functional materials. Wherein, the liquid polybutadiene, lanthanum oxide and nano-cellulose can cooperate with the organic silicon modified epoxy resin to further improve the toughness, thermal stability and pressure resistance of the repair material, and the nano-Fe3O4Has strong magnetism, effectively improves the cohesive energy of the organic silicon modified epoxy resin, further improves the strength of the repair material, and is nano SiO2The viscosity of the organic silicon modified epoxy resin can be enhanced, the repairing material is prevented from flowing too fast and being cured slowly, the mechanical property and the hydrophobic property of the repairing material can be improved, and the nano zinc powder can accelerate the curing speed of the repairing material. Meanwhile, the curing agent with proper dosage is adopted, so that the relation between the curing speed and the molding plasticity can be balanced, and the molded material still has excellent plasticity under the condition of reaching higher curing speed.
Further, the component A comprises the following raw material components in parts by weight: 54 parts of organic silicon modified epoxy resin, 14 parts of nano silicon dioxide, 13 parts of nano zinc powder, 19 parts of nano ferroferric oxide, 0.6 part of lanthanum oxide, 0.2 part of nano cellulose and 16 parts of liquid polybutadiene;
the component B comprises the following raw material components in parts by weight: 51 parts of curing agent, 13 parts of nano silicon dioxide, 14 parts of nano zinc powder, 22 parts of nano ferroferric oxide, 0.6 part of lanthanum oxide and 0.2 part of nano cellulose;
before use, the A component and the B component are mixed according to the ratio of 3: 2, and uniformly mixing the components in a mass ratio.
Further, the curing agent is curing agent D31. The purchased curing agent D31 is adopted to prepare the curing agent system, and the curing agent system can be cooperated with nano zinc powder to improve the normal temperature curing speed of the resin system on the premise of not influencing the performance of other components.
Further, the nano silicon dioxide is gas phase nano silicon dioxide.
Further, the nano silicon dioxide, the nano zinc powder, the nano ferroferric oxide, the lanthanum oxide and the nano cellulose are subjected to surface modification treatment by adopting a silane coupling agent. By adopting the silane coupling agent for surface modification treatment, the material can be effectively prevented from agglomerating, the dispersibility of the material is improved, and the components are ensured to better exert synergistic effect.
Further, the component A and the component B adopt aromatic hydrocarbon solvent, alcohol solvent, ketone solvent, ester solvent or the mixture thereof as diluting solvent.
The invention also provides a preparation method of the quick-curing leaking stoppage repairing material for SF6 gas equipment, which comprises the following steps:
(1) preparing a component A:
adding organic silicon modified epoxy resin, nano silicon dioxide, nano zinc powder and nano ferroferric oxide into a diluting solvent, stirring until the solid powder is completely soaked, then carrying out ultrasonic dispersion treatment on the obtained mixture for at least 30min, then adding lanthanum oxide, nano cellulose and liquid polybutadiene, and stirring and mixing for at least 15min to obtain a component A;
(2) preparing a component B:
adding a curing agent, nano silicon dioxide, nano zinc powder and nano ferroferric oxide into a diluting solvent, stirring until solid powder is completely infiltrated, then carrying out ultrasonic dispersion treatment on the obtained mixture for at least 30min, then adding lanthanum oxide and nano cellulose, stirring and mixing for at least 15min to obtain a component B;
(3) before use, the A component and the B component are mixed according to the ratio of 3: 1.8-2.2, and uniformly mixing to obtain the fast curing plugging repair material.
The invention has the beneficial effects that:
the invention adopts specific dosage of nano silicon dioxide, nano zinc powder, nano ferroferric oxide, lanthanum oxide, nano cellulose and liquid polybutadieneAs a functional additive material of the organic silicon modified epoxy resin, the problem of great reduction of curing speed caused by adding a functional filler into the organic silicon modified epoxy resin in the traditional process is solved, and by the mutual matching of the functional materials with specific proportions, the toughness, strength, pressure resistance, hardness, adhesion property, thermal stability and the like of the repair material can be effectively improved on the premise of ensuring normal-temperature rapid curing, and the adverse effect of the addition of the functional material on the curing speed of the organic silicon modified epoxy resin is weakened. Wherein, the liquid polybutadiene, lanthanum oxide and nano-cellulose can cooperate with the organic silicon modified epoxy resin to further improve the toughness, thermal stability and pressure resistance of the repair material, and the nano-Fe3O4Has strong magnetism, effectively improves the cohesive energy of the organic silicon modified epoxy resin, further improves the strength of the repair material, and is nano SiO2The viscosity of the organic silicon modified epoxy resin can be enhanced, the repairing material is prevented from flowing too fast and being cured slowly, and the nano zinc powder can accelerate the curing speed of the repairing material. Meanwhile, the curing agent with proper dosage is adopted, so that the relation between the curing speed and the molding plasticity can be balanced, and the molded material still has excellent plasticity under the condition of reaching higher curing speed.
Detailed Description
Example one
SF provided by the embodiment6The quick curing leaking stoppage repairing material for the gas equipment comprises a component A and a component B;
the component A comprises the following raw material components in parts by weight: 54 parts of organic silicon modified epoxy resin, 14 parts of nano silicon dioxide, 13 parts of nano zinc powder, 19 parts of nano ferroferric oxide, 0.6 part of lanthanum oxide, 0.2 part of nano cellulose and 16 parts of liquid polybutadiene;
the component B comprises the following raw material components in parts by weight: 51 parts of curing agent, 13 parts of nano silicon dioxide, 14 parts of nano zinc powder, 22 parts of nano ferroferric oxide, 0.6 part of lanthanum oxide and 0.2 part of nano cellulose;
before use, the A component and the B component are mixed according to the ratio of 3: 2, and uniformly mixing the components in a mass ratio.
In the embodiment, the specific dosage of nano silicon dioxide, nano zinc powder, nano ferroferric oxide, lanthanum oxide, nano cellulose and liquid polybutadiene are used as the functional addition material of the organic silicon modified epoxy resin, so that the problem that the curing speed is greatly reduced when functional filler is added into the organic silicon modified epoxy resin in the traditional process is solved, the toughness, the strength, the pressure resistance, the hardness, the adhesion property, the thermal stability and the like of the repairing material can be effectively improved on the premise of ensuring the quick curing through the mutual matching of the functional materials with specific proportions, and the adverse effect of the addition of the functional materials on the curing speed of the organic silicon modified epoxy resin is weakened. Wherein, the liquid polybutadiene, lanthanum oxide and nano-cellulose can cooperate with the organic silicon modified epoxy resin to further improve the toughness, thermal stability and pressure resistance of the repair material, and the nano-Fe3O4Has strong magnetism, effectively improves the cohesive energy of the organic silicon modified epoxy resin, further improves the strength of the repair material, and is nano SiO2The organic silicon modified epoxy resin can be used for enhancing the viscosity of the organic silicon modified epoxy resin, preventing the repairing material from flowing too fast and curing slowly, improving the mechanical property and the hydrophobic property of the repairing material, and accelerating the curing speed of the repairing material by the nano zinc powder. Meanwhile, the curing agent with a proper dosage is adopted in the embodiment, the relation between the curing speed and the molding plasticity can be balanced, and the molded material still has excellent plasticity under the condition of reaching a faster curing speed.
In this embodiment, the curing agent is curing agent D31; the nano silicon dioxide is gas phase nano silicon dioxide; the nano silicon dioxide, the nano zinc powder, the nano ferroferric oxide, the lanthanum oxide and the nano cellulose are subjected to surface modification treatment by adopting a silane coupling agent; and (3) performing surface modification treatment on the silane coupling agent by adopting a conventional method. In the embodiment, a silane coupling agent KH550 is adopted, a certain amount of KH550 is diluted by 4-6 times of ethanol aqueous solution (volume concentration is 95%), ultrasonic dispersion is carried out for at least 10min, then materials to be modified (nano silicon dioxide, nano zinc powder, nano ferroferric oxide, lanthanum oxide and nano cellulose) are added, the temperature is increased to 70-100 ℃, mixing and stirring are carried out for at least 1h, centrifugal treatment is carried out after cooling, and solid materials are collected and dried for later use. By adopting the silane coupling agent for surface modification treatment, the agglomeration of the material can be effectively avoided, the dispersibility of the material is improved, and the components are ensured to better play a synergistic effect.
In this embodiment, the component a and the component B both use an aromatic hydrocarbon solvent, an alcohol solvent, a ketone solvent, an ester solvent, or a mixture thereof as a diluting solvent. In this embodiment, absolute ethyl alcohol is used as the diluting solvent, and other diluting solvents may be used instead of absolute ethyl alcohol.
SF provided by the example6The preparation method of the rapid curing leaking stoppage repairing material for the gas equipment comprises the following steps:
(1) preparing a component A:
adding organic silicon modified epoxy resin, nano silicon dioxide, nano zinc powder and nano ferroferric oxide into a diluting solvent, stirring until the solid powder is completely soaked, then carrying out ultrasonic dispersion treatment on the obtained mixture for at least 30min, then adding lanthanum oxide, nano cellulose and liquid polybutadiene, and stirring and mixing for at least 15min to obtain a component A;
(2) preparing a component B:
adding a curing agent, nano silicon dioxide, nano zinc powder and nano ferroferric oxide into a diluting solvent, stirring until the solid powder is completely infiltrated, then carrying out ultrasonic dispersion treatment on the obtained mixture for at least 30min, then adding lanthanum oxide and nano cellulose, stirring and mixing for at least 15min to obtain a component B;
(3) before use, the A component and the B component are mixed according to the ratio of 3: 2, and uniformly mixing the components in a mass ratio to obtain the fast-curing plugging repair material.
Example two
SF provided by the embodiment6The quick-curing leaking stoppage repair material for the gas equipment comprises a component A and a component B;
the component A comprises the following raw material components in parts by weight: 50 parts of organic silicon modified epoxy resin, 10 parts of nano silicon dioxide, 10 parts of nano zinc powder, 15 parts of nano ferroferric oxide, 0.5 part of lanthanum oxide, 0.2 part of nano cellulose and 10 parts of liquid polybutadiene;
the component B comprises the following raw material components in parts by weight: 55 parts of curing agent, 15 parts of nano silicon dioxide, 15 parts of nano zinc powder, 25 parts of nano ferroferric oxide, 0.6 part of lanthanum oxide and 0.3 part of nano cellulose;
before use, the A component and the B component are mixed according to the ratio of 3: 1.8, and uniformly mixing.
In this example, the raw material components of the component a and the component B are the same as those of the first example.
SF provided by the example6The flow of the preparation method of the rapid curing plugging repair material for the gas equipment is the same as that of the first embodiment.
EXAMPLE III
SF provided by the example6The quick curing leaking stoppage repairing material for the gas equipment comprises a component A and a component B;
the component A comprises the following raw material components in parts by weight: 55 parts of organic silicon modified epoxy resin, 15 parts of nano silicon dioxide, 15 parts of nano zinc powder, 20 parts of nano ferroferric oxide, 0.6 part of lanthanum oxide, 0.3 part of nano cellulose and 20 parts of liquid polybutadiene;
the component B comprises the following raw material components in parts by weight: 50 parts of curing agent, 10 parts of nano silicon dioxide, 10 parts of nano zinc powder, 20 parts of nano ferroferric oxide, 0.5 part of lanthanum oxide and 0.2 part of nano cellulose;
before use, the A component and the B component are mixed according to the ratio of 3: 2.2, and mixing uniformly.
In this example, the raw material components used for component a and component B are the same as in example one.
SF provided by the example6The flow of the preparation method of the rapid curing plugging repair material for the gas equipment is the same as that of the first embodiment.
In order to verify the use effect of the plugging material, three perforated tank bodies are selected and filled with SF6Gas, and the pressure of the tank body reaches 0.8Mpa, simulating gas insulation equipment, wherein the diameter of the opening of the tank body is 1mm, and simulatingThe largest diameter voids that may occur. Under the condition of normal temperature, the leaking stoppage repairing materials prepared in the first embodiment, the second embodiment and the third embodiment are respectively coated on openings of three tank bodies, the gel curing time is tested, and after standing for 24 hours, the basic performance of a repairing layer is detected, and the results are shown in the following table 1:
TABLE 1
The above table shows that the plugging repair material of the invention can be rapidly cured at normal temperature and gradually cured to form a film, the basic performance of the cured repair layer reaches the index requirement, and the plugging repair material has excellent rapid curing pressure resistance and can be used for repairing the defect of the sand hole of the pressurized electrical equipment.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. SF (sulfur hexafluoride)6The quick curing leaking stoppage repair material for the gas equipment is characterized in that: comprises a component A and a component B;
the component A comprises the following raw material components in parts by weight: 50-55 parts of organic silicon modified epoxy resin, 10-15 parts of nano silicon dioxide, 10-15 parts of nano zinc powder, 15-20 parts of nano ferroferric oxide, 0.5-0.6 part of lanthanum oxide, 0.2-0.3 part of nano cellulose and 10-20 parts of liquid polybutadiene;
the component B comprises the following raw material components in parts by weight: 50-55 parts of curing agent, 10-15 parts of nano silicon dioxide, 10-15 parts of nano zinc powder, 20-25 parts of nano ferroferric oxide, 0.5-0.6 part of lanthanum oxide and 0.2-0.3 part of nano cellulose;
before use, the A component and the B component are mixed according to the ratio of 3: 1.8-2.2, and uniformly mixing.
2. SF according to claim 16The quick-curing leaking stoppage repair material for the gas equipment is characterized in that: the component A comprises the following raw material components in parts by weight: 54 parts of organic silicon modified epoxy resin, 14 parts of nano silicon dioxide, 13 parts of nano zinc powder, 19 parts of nano ferroferric oxide, 0.6 part of lanthanum oxide, 0.2 part of nano cellulose and 16 parts of liquid polybutadiene;
the component B comprises the following raw material components in parts by weight: 51 parts of curing agent, 13 parts of nano silicon dioxide, 14 parts of nano zinc powder, 22 parts of nano ferroferric oxide, 0.6 part of lanthanum oxide and 0.2 part of nano cellulose;
before use, the A component and the B component are mixed according to the ratio of 3: 2, and uniformly mixing the components in a mass ratio.
3. SF according to claim 1 or 26The quick-curing leaking stoppage repair material for the gas equipment is characterized in that: the curing agent is curing agent D31.
4. SF according to claim 1 or 26The quick-curing leaking stoppage repair material for the gas equipment is characterized in that: the nano silicon dioxide is gas phase nano silicon dioxide.
5. SF according to claim 1 or 26The quick-curing leaking stoppage repair material for the gas equipment is characterized in that: the nano silicon dioxide, the nano zinc powder, the nano ferroferric oxide, the lanthanum oxide and the nano cellulose are subjected to surface modification treatment by adopting a silane coupling agent.
6. SF according to claim 1 or 26The quick-curing leaking stoppage repair material for the gas equipment is characterized in that: the component A andthe component B adopts aromatic hydrocarbon solvent, alcohol solvent, ketone solvent, ester solvent or their mixture as diluting solvent.
7. SF according to claim 1 or 26The preparation method of the rapid curing leaking stoppage repairing material for the gas equipment is characterized by comprising the following steps:
the method comprises the following steps:
(1) preparing a component A:
adding organic silicon modified epoxy resin, nano silicon dioxide, nano zinc powder and nano ferroferric oxide into a diluting solvent, stirring until the solid powder is completely soaked, then carrying out ultrasonic dispersion treatment on the obtained mixture for at least 30min, then adding lanthanum oxide, nano cellulose and liquid polybutadiene, and stirring and mixing for at least 15min to obtain a component A;
(2) preparing a component B:
adding a curing agent, nano silicon dioxide, nano zinc powder and nano ferroferric oxide into a diluting solvent, stirring until the solid powder is completely infiltrated, then carrying out ultrasonic dispersion treatment on the obtained mixture for at least 30min, then adding lanthanum oxide and nano cellulose, stirring and mixing for at least 15min to obtain a component B;
(3) before use, the A component and the B component are mixed according to the ratio of 3: 1.8-2.2, and uniformly mixing to obtain the fast curing plugging repair material.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0359709A2 (en) * | 1988-09-14 | 1990-03-21 | Ciba-Geigy Ag | Induction heat hardenable epoxy resin composition |
| CN110746948A (en) * | 2019-09-27 | 2020-02-04 | 陈文广 | High-strength composite plugging agent |
| CN111520570A (en) * | 2020-06-01 | 2020-08-11 | 青岛百世赛弗新材料科技有限公司 | Pipeline pressure leaking stoppage repairing and double-layer long-acting anti-corrosion device and construction method thereof |
| CN111574954A (en) * | 2020-06-01 | 2020-08-25 | 青岛海弗莱安全科技有限公司 | Plugging agent for pressurized plugging repair and construction method thereof |
| JP2020128475A (en) * | 2019-02-08 | 2020-08-27 | 国立大学法人九州工業大学 | Hybrid filler for resin mixture and method for producing the same |
-
2021
- 2021-04-23 CN CN202110442958.6A patent/CN113337078B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0359709A2 (en) * | 1988-09-14 | 1990-03-21 | Ciba-Geigy Ag | Induction heat hardenable epoxy resin composition |
| JP2020128475A (en) * | 2019-02-08 | 2020-08-27 | 国立大学法人九州工業大学 | Hybrid filler for resin mixture and method for producing the same |
| CN110746948A (en) * | 2019-09-27 | 2020-02-04 | 陈文广 | High-strength composite plugging agent |
| CN111520570A (en) * | 2020-06-01 | 2020-08-11 | 青岛百世赛弗新材料科技有限公司 | Pipeline pressure leaking stoppage repairing and double-layer long-acting anti-corrosion device and construction method thereof |
| CN111574954A (en) * | 2020-06-01 | 2020-08-25 | 青岛海弗莱安全科技有限公司 | Plugging agent for pressurized plugging repair and construction method thereof |
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| CN113337078A (en) | 2021-09-03 |
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