CN103665600B - Material of a kind of UHV transmission line damping conductor spacer rubber parts and preparation method thereof - Google Patents
Material of a kind of UHV transmission line damping conductor spacer rubber parts and preparation method thereof Download PDFInfo
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- CN103665600B CN103665600B CN201310745501.8A CN201310745501A CN103665600B CN 103665600 B CN103665600 B CN 103665600B CN 201310745501 A CN201310745501 A CN 201310745501A CN 103665600 B CN103665600 B CN 103665600B
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- conductor spacer
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- 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
- C08K3/04—Carbon
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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
- C08K3/06—Sulfur
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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
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
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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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/39—Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
- C08K5/40—Thiurams, i.e. compounds containing groups
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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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K2201/001—Conductive additives
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention discloses material of a kind of UHV transmission line damping conductor spacer rubber parts and preparation method thereof, belong to elastomeric material and preparation method thereof field.Material of the present invention is made up of the component of following mass percent: 50 ~ 55% terpolymer EP rubbers, 27 ~ 32% high abrasion carbon blacks, 5 ~ 10% acetylene carbon blacks, 5 ~ 8% naphthenic oils, 2.5 ~ 3.5% zinc oxide, 0.3 ~ 0.7% UV light absorber, 1 ~ 1.5% dicumyl peroxide, 0.2 ~ 0.5% sulphur, 0.1 ~ 0.3% tetramethyl-thiuram disulfide.Its preparation process is: masterbatch mix; Master batch adds sulphur; Shaping and sulfuration.UHV transmission line damping conductor spacer rubber parts prepared by the present invention has excellent physical and mechanical properties; Excellent resistance to weather, resistance to ozone, ultraviolet-resistant aging performance; Higher electroconductibility and suitable damping and amortization; Snappiness and low compression set performance.Product can reach 25 ~ 30 years work-ing life.
Description
Technical field
The invention belongs to elastomeric material and preparation method thereof field, more particularly, relating to a kind of take terpolymer EP rubber as matrix, can be used for material of UHV transmission line damping conductor spacer rubber parts and preparation method thereof.
Background technology
In ultra-high-tension power transmission line is built, each split conductor of transmitting line must separate with conductor spacer, could effectively prevent mutual whiplash.But each split conductor separated with conductor spacer, due to the span concussion that micro-wind-induced vibration and high wind bring out, wire can be caused tired, and conductor spacer fastening piece loosens, and wire weares and teares, its safe operation of serious threat.In practice, between conductor spacer and wire, take damping vibration attenuation measure, to control amplitude at allowed range of motion.Damping conductor spacer rubber parts solves the key of this measure just, and its Main Function is exactly the vibrational energy that absorption wire causes because of wind.
Extra-high voltage refers to interchange 1000 kilovolts and above and direct current ± 800 kilovolt and above voltage range.At present, domestic transmitting line is mainly based on the high pressure of 110KV ~ 500KV, ultra-high voltage.Extra-high pressure energy promotes the transport capacity of electrical network greatly.According to the data presentation that State Grid Corporation of China provides, primary Ioops extra-high voltage direct-current electrical network can send 6,000,000 kilowatts of electricity, is equivalent to 5 to 6 times of existing 500 Kilovolt Direct Current nets, and power transmission distance is also 2 to 3 times of the latter, and therefore efficiency improves greatly.In addition, according to State Grid Corporation of China's measuring and calculating, the electricity of same power is carried, if adopt extra high voltage line transmission of electricity can save the land resources of 60% than employing 500 kilovolts of supertension lines.But along with the raising of voltage range, strength of electric field can increase, and the low electrical conductivity of damping conductor spacer rubber parts used for transmission line can make Potential distribution extremely uneven, just corona discharge can be produced when damping conductor spacer rubber parts surface electric field intensity exceedes corona inception field strength, cause corona power loss, affect wire safe handling.High strength of electric field also can accelerate ozone ageing and the ultraviolet ray ageing of damping conductor spacer rubber parts simultaneously.
At present, the material for the production of damping conductor spacer rubber parts is a lot, as styrene-butadiene rubber(SBR), chloroprene rubber, chlorinated polyethylene rubber, isoprene-isobutylene rubber, silicon rubber, ethylene-propylene rubber(EPR) etc.But all cannot meet the service requirements of UHV transmission line.Styrene-butadiene rubber(SBR) physical and mechanical properties is higher, but ozone-resistant aging property is poor.Chloroprene rubber, chlorinated polyethylene rubber are heat-resisting, anti-weather-aging property is better, but under high-voltage electric field, can discharge the obnoxious flavour of corrosion wire.Isoprene-isobutylene rubber damping capacity is best, resistance to weather, ozone-resistant aging property, but the thermo-oxidative ageing of isoprene-isobutylene rubber belongs to degraded type, and aging tendency is softening, and the rubber parts grip after aging reduces, and can cause conductor spacer slippage.Silicon rubber weathering resistance is best, but physical and mechanical properties is poor, and silastic product skin friction coefficient is little, little to the fair line grip of wire.Comparatively speaking, the over-all properties of ethylene-propylene rubber(EPR) is best, but also must be equipped with rigorous balanced constant, be the service requirements that the rubber parts of matrix all cannot meet extra-high voltage (exchanging 1000 kilovolts and above and direct current ± 800 kilovolt and above voltage range) damping conductor spacer rubber parts used for transmission line with terpolymer EP rubber in prior art.
Chinese Patent Application No.: 200410010685.4, denomination of invention is: the patent document of conductor spacer rubber damper of ultra-high tension transmission line, disclose a kind of conductor spacer rubber damper of ultra-high tension transmission line, this damper of ultra-high tension with ethylene-propylene rubber(EPR), isoprene-isobutylene rubber for main raw material, plasticate after reaching requirement plasticity number, add vulcanization leveller, vulcanization accelerator, anti-aging agent, reinforcing filler, softening agent, vulcanizing agent successively, continue evenly mixing, thin-pass bottom sheet, is prepared into conductor spacer rubber damper of ultra-high tension transmission line.Applicant does overtesting for this application case, finds that the volume specific resistance of material prepared by this application case is 1.1 × 10
6~ 1.1 × 10
8Ω cm, its electric conductivity is lower, can produce corona discharge, affect wire and use safely under extra-high voltage (exchanging 1000 kilovolts and above and direct current ± 800 kilovolt and above voltage range) electric field.
Summary of the invention
1. invent the technical problem that will solve
The over-all properties that the object of the invention is to overcome damping conductor spacer rubber parts in prior art is poor, especially corona discharge can be produced under extra-high voltage electric field, affect the problem of wire safe handling, provide material of a kind of UHV transmission line damping conductor spacer rubber parts and preparation method thereof, adopt technical scheme of the present invention, effectively can solve damping conductor spacer rubber parts corona discharge problem under extra-high voltage electric field.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
The material of a kind of UHV transmission line damping conductor spacer rubber parts of the present invention, is made up of the component of following mass percent:
Preferably, the iodine absorption value of described acetylene carbon black is >=90g/kg, and resistivity is≤2.5 Ω m.
Preferably, described UV light absorber is UV light absorber UV-12, and its molecular weight is 326, and fusing point is 48 ~ 49 DEG C.
The preparation method of the material of a kind of UHV transmission line damping conductor spacer rubber parts of the present invention, the steps include:
(1) masterbatch mix:
Terpolymer EP rubber, zinc oxide, UV light absorber are placed in Banbury mixer mixing 60 ~ 80 seconds, then high abrasion carbon black, acetylene carbon black, mixing 100 ~ 120 seconds of naphthenic oil is added, rise bolt 100 ~ 120 seconds, control binder removal when melting temperature reaches 110 ~ 120 DEG C simultaneously; Wherein, each component weight percent content is as follows: 50 ~ 55% terpolymer EP rubbers, 27 ~ 32% high abrasion carbon blacks, 5 ~ 10% acetylene carbon blacks, 5 ~ 8% naphthenic oils, 2.5 ~ 3.5% zinc oxide, 0.3 ~ 0.7% UV light absorber;
(2) master batch adds sulphur:
The master batch that Banbury mixer is discharged is wrapped on mill mixer roller, adds dicumyl peroxide, sulphur, tetramethyl-thiuram disulfide, operate on after the whole wedging master batch of Synergist S-421 95 and turn refining, finally sizing material is made a call to three triangle bags and two rear slices of volume; Wherein, each component weight percent content is as follows: 1 ~ 1.5% dicumyl peroxide, 0.2 ~ 0.5% sulphur, 0.1 ~ 0.3% tetramethyl-thiuram disulfide;
(3) shaping and sulfuration:
Die cavity is inserted after shaping for the rubber unvulcanizate adding sulphur, on vulcanizer, sulfuration obtains finished product, or, the rubber unvulcanizate adding sulphur is injected sulfuration on injection moulding machine and obtains finished product, wherein curing parameter is as follows: curing temperature is 160 ~ 180 DEG C, sulfide stress is 15 ~ 20Mpa, and curing time is 6 ~ 10min.
The preparation method of the material of a kind of UHV transmission line damping conductor spacer rubber parts of the present invention, in step (1), the iodine absorption value of acetylene carbon black is >=90g/kg, and resistivity is≤2.5 Ω m.
The preparation method of the material of a kind of UHV transmission line damping conductor spacer rubber parts of the present invention, step (1) middle-ultraviolet lamp absorption agent is UV light absorber UV-12, and its molecular weight is 326, and fusing point is 48 ~ 49 DEG C.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following unusual effect:
(1) material of a kind of UHV transmission line damping conductor spacer rubber parts of the present invention, with the good terpolymer EP rubber of anti-weather-aging property for matrix, adopt peroxide vulcanizing system, improve the thermal-oxidative aging property of material, coordinate the acetylene carbon black with conductivity, not only give the physical and mechanical properties of rubber excellence, snappiness and low compression set performance, the electroconductibility that rubber is higher, suitable damping and amortization and high conductivity are provided again; Combined with ultraviolet radiation absorption agent, improves material ultraviolet-resistant aging performance; The present invention has excellent resistance to weather, ozone resistance, and product can reach 25 ~ 30 years work-ing life;
(2) preparation method of the material of a kind of UHV transmission line damping conductor spacer rubber parts of the present invention, for damping conductor spacer rubber parts material prescription particular design of the present invention, formula of the present invention is at masterbatch mix, master batch two sections adds sulphur, under the cooperation of shaping and sulfuration process, especially the addition sequence of each component in preparation process, add-on, the control of temperature and time section, the damping conductor spacer rubber parts material that the present invention is filled a prescription has excellent over-all properties, wherein, the volume specific resistance of the material of damping conductor spacer rubber parts is 3.5 × 10
3Ω cm, wear index reaches 96%, rubber parts material of the present invention can meet the service requirements of extra-high voltage (exchanging 1000 kilovolts and above and direct current ± 800 kilovolt and above voltage range) damping conductor spacer rubber parts used for transmission line, and can not corona discharge be produced under extra-high voltage electric field, ensure that the safe application performance of wire.
Embodiment
For understanding content of the present invention further, below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The material of a kind of UHV transmission line damping conductor spacer rubber parts in the present embodiment, its component and weight percent content as shown in table 1.
The material component of table 1 embodiment 1 rubber parts and degree
| Starting material title | Percentage composition % |
| Terpolymer EP rubber | 55 |
| High abrasion carbon black | 27 |
| Acetylene carbon black | 8 |
| Naphthenic oil | 5 |
| Zinc oxide | 2.5 |
| UV light absorber | 0.5 |
| Dicumyl peroxide | 1.5 |
| Sulphur | 0.3 |
| Tetramethyl-thiuram disulfide | 0.2 |
In the present embodiment, acetylene carbon black effluent north rapid development carbon black Chemical Co., Ltd. provides, and Specifeca tion speeification has: iodine absorption value is >=90g/kg, and resistivity is≤2.5 Ω m.UV light absorber is UV light absorber UV-12, and by Shanghai, Wenhua chemical color company limited provides, and its molecular weight is 326, and fusing point is 48 ~ 49 DEG C.The J-4045 terpolymer EP rubber that terpolymer EP rubber is produced by organic synthesis factory of Jilin Chemical Industrial Co. Ltd., Specifeca tion speeification has: ethylene content 53 ~ 59%, Mooney viscosity (ML
1+4, 100 DEG C) and be 38 ~ 52.
The material prescription of the UHV transmission line damping conductor spacer rubber parts adopting the present embodiment above-mentioned, the step of its preparation method is:
(1) masterbatch mix:
Terpolymer EP rubber, zinc oxide, UV light absorber are placed in Banbury mixer mixing 60 seconds, then add high abrasion carbon black, acetylene carbon black, mixing 120 seconds of naphthenic oil, rise bolt 120 seconds, control binder removal when melting temperature reaches 110 DEG C simultaneously.
(2) master batch adds sulphur:
The master batch that Banbury mixer is discharged is wrapped on mill mixer roller, adds dicumyl peroxide, sulphur, tetramethyl-thiuram disulfide, operate on after the whole wedging master batch of Synergist S-421 95 and turn refining, finally sizing material is made a call to three triangle bags and two rear slices of volume; Add in sulphur process whole, keep roller temperature between 55 ~ 65 DEG C, prevent from sizing material incipient scorch and affect adding sulphur process.
(3) shaping and sulfuration:
After shaping for the rubber unvulcanizate adding sulphur, insert die cavity, on vulcanizer, sulfuration obtains finished product, and wherein curing parameter is as follows: curing temperature is 180 DEG C, and sulfide stress is 15Mpa, and curing time is 6min.The present embodiment prepares the material properties test of the UHV transmission line damping conductor spacer rubber parts of gained as shown in table 1-1.
The testing of materials performance of table 1-1 embodiment 1 rubber parts
Embodiment 2
The material of a kind of UHV transmission line damping conductor spacer rubber parts in the present embodiment, its component and weight percent content as shown in table 2.
The material component of table 2 embodiment 2 rubber parts and degree
| Starting material title | Percentage composition % |
| Terpolymer EP rubber | 50 |
| High abrasion carbon black | 32 |
| Acetylene carbon black | 5 |
| Naphthenic oil | 8 |
| Zinc oxide | 2.5 |
| UV light absorber | 0.3 |
| Dicumyl peroxide | 1.4 |
| Sulphur | 0.5 |
| Tetramethyl-thiuram disulfide | 0.3 |
The manufacturer of each component in this enforcement and performance perameter thereof are with embodiment 1, and adopt the material prescription of the above-mentioned UHV transmission line damping conductor spacer rubber parts of the present embodiment, the step of its preparation method is:
(1) masterbatch mix:
Terpolymer EP rubber, zinc oxide, UV light absorber are placed in Banbury mixer mixing 80 seconds, then add high abrasion carbon black, acetylene carbon black, mixing 100 seconds of naphthenic oil, rise bolt 100 seconds, control binder removal when melting temperature reaches 120 DEG C simultaneously.
(2) master batch adds sulphur:
The master batch that Banbury mixer is discharged is wrapped on mill mixer roller, adds dicumyl peroxide, sulphur, tetramethyl-thiuram disulfide, operate on after the whole wedging master batch of Synergist S-421 95 and turn refining, finally sizing material is made a call to three triangle bags and two rear slices of volume; Add in sulphur process whole, keep roller temperature between 55 ~ 65 DEG C, prevent from sizing material incipient scorch and affect adding sulphur process.
(3) shaping and sulfuration:
After shaping for the rubber unvulcanizate adding sulphur, insert die cavity, on vulcanizer, sulfuration obtains finished product, and wherein curing parameter is as follows: curing temperature is 160 DEG C, and sulfide stress is 20Mpa, and curing time is 10min.
The present embodiment prepares the similar nature of the table 1-1 in the material properties test of the UHV transmission line damping conductor spacer rubber parts of gained and embodiment 1.
Embodiment 3
The material of a kind of UHV transmission line damping conductor spacer rubber parts in the present embodiment, its component and weight percent content as shown in table 3.
The material component of table 3 embodiment 3 rubber parts and degree
| Starting material title | Percentage composition % |
| Terpolymer EP rubber | 52 |
| High abrasion carbon black | 30 |
| Acetylene carbon black | 7 |
| Naphthenic oil | 5.6 |
| Zinc oxide | 3 |
| UV light absorber | 0.7 |
| Dicumyl peroxide | 1.0 |
| Sulphur | 0.4 |
| Tetramethyl-thiuram disulfide | 0.3 |
The manufacturer of each component in this enforcement and performance perameter thereof are with embodiment 1, and adopt the material prescription of the above-mentioned UHV transmission line damping conductor spacer rubber parts of the present embodiment, the step of its preparation method is:
(1) masterbatch mix:
Terpolymer EP rubber, zinc oxide, UV light absorber are placed in Banbury mixer mixing 70 seconds, then add high abrasion carbon black, acetylene carbon black, mixing 110 seconds of naphthenic oil, rise bolt 110 seconds, control binder removal when melting temperature reaches 115 DEG C simultaneously.
(2) master batch adds sulphur:
The master batch that Banbury mixer is discharged is wrapped on mill mixer roller, adds dicumyl peroxide, sulphur, tetramethyl-thiuram disulfide, operate on after the whole wedging master batch of Synergist S-421 95 and turn refining, finally sizing material is made a call to three triangle bags and two rear slices of volume; Add in sulphur process whole, keep roller temperature between 55 ~ 65 DEG C, prevent from sizing material incipient scorch and affect adding sulphur process.
(3) shaping and sulfuration:
After shaping for the rubber unvulcanizate adding sulphur, insert die cavity, on vulcanizer, sulfuration obtains finished product, and wherein curing parameter is as follows: curing temperature is 170 DEG C, and sulfide stress is 18Mpa, and curing time is 8min.
The present embodiment prepares the similar nature of the table 1-1 in the material properties test of the UHV transmission line damping conductor spacer rubber parts of gained and embodiment 1.
The material that embodiment 1 ~ 3 prepares the UHV transmission line damping conductor spacer rubber parts of gained entrusts the fatigue tests such as Guowang Beijing Power Building Academy is detected, and conductor spacer vertical vibration joined together is tired, horizontal vibration is tired, twisting vibration is tired all to meet the requirement of GB/T2338-2002 standard index.The volume specific resistance of the material of damping conductor spacer rubber parts of the present invention is 3.5 × 10
3Ω cm(Chinese Patent Application No.: in 200410010685.4, the volume specific resistance of damper of ultra-high tension is 1.1 × 10
6~ 1.1 × 10
8Ω cm, the volume specific resistance of this value range represents general technology level of the prior art), wear index reaches 96%, make rubber parts material of the present invention can meet the service requirements of extra-high voltage (exchanging 1000 kilovolts and above and direct current ± 800 kilovolt and above voltage range) damping conductor spacer rubber parts used for transmission line, and can not corona discharge be produced under extra-high voltage electric field, ensure that the safe application performance of wire.
Claims (6)
1. a UHV transmission line material for damping conductor spacer rubber parts, is characterized in that, is made up of the component of following mass percent:
the volume specific resistance of the material of described damping conductor spacer rubber parts is 3.5 × 10
3Ω cm, wear index reaches 96%, meets the service requirements of the damping conductor spacer rubber parts used for transmission line of interchange 1000 kilovolts and above and direct current ± 800 kilovolt and above voltage range.
2. the material of a kind of UHV transmission line damping conductor spacer rubber parts according to claim 1, is characterized in that, the iodine absorption value of described acetylene carbon black is >=90g/kg, and resistivity is≤2.5 Ω m.
3. the material of a kind of UHV transmission line damping conductor spacer rubber parts according to claim 1, it is characterized in that, described UV light absorber is UV light absorber UV-12, and its molecular weight is 326, and fusing point is 48 ~ 49 DEG C.
4. a UHV transmission line preparation method for the material of damping conductor spacer rubber parts, is characterized in that, the steps include:
(1) masterbatch mix:
Terpolymer EP rubber, zinc oxide, UV light absorber are placed in Banbury mixer mixing 60 ~ 80 seconds, then high abrasion carbon black, acetylene carbon black, mixing 100 ~ 120 seconds of naphthenic oil is added, rise bolt 100 ~ 120 seconds, control binder removal when melting temperature reaches 110 ~ 120 DEG C simultaneously; Wherein, each component weight percent content is as follows: 50 ~ 55% terpolymer EP rubbers, 27 ~ 32% high abrasion carbon blacks, 5 ~ 10% acetylene carbon blacks, 5 ~ 8% naphthenic oils, 2.5 ~ 3.5% zinc oxide, 0.3 ~ 0.7% UV light absorber;
(2) master batch adds sulphur:
The master batch that Banbury mixer is discharged is wrapped on mill mixer roller, adds dicumyl peroxide, sulphur, tetramethyl-thiuram disulfide, operate on after the whole wedging master batch of Synergist S-421 95 and turn refining, finally sizing material is made a call to three triangle bags and two rear slices of volume; Wherein, each component weight percent content is as follows: 1 ~ 1.5% dicumyl peroxide, 0.2 ~ 0.5% sulphur, 0.1 ~ 0.3% tetramethyl-thiuram disulfide;
(3) shaping and sulfuration:
Die cavity is inserted after shaping for the rubber unvulcanizate adding sulphur, on vulcanizer, sulfuration obtains finished product, or, the rubber unvulcanizate adding sulphur is injected sulfuration on injection moulding machine and obtains finished product, wherein curing parameter is as follows: curing temperature is 160 ~ 180 DEG C, sulfide stress is 15 ~ 20Mpa, and curing time is 6 ~ 10min.
5. the preparation method of the material of a kind of UHV transmission line damping conductor spacer rubber parts according to claim 4, is characterized in that, in step (1), the iodine absorption value of acetylene carbon black is >=90g/kg, and resistivity is≤2.5 Ω m.
6. the preparation method of the material of a kind of UHV transmission line damping conductor spacer rubber parts according to claim 4, it is characterized in that, step (1) middle-ultraviolet lamp absorption agent is UV light absorber UV-12, and its molecular weight is 326, and fusing point is 48 ~ 49 DEG C.
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| CN201310745501.8A CN103665600B (en) | 2013-12-30 | 2013-12-30 | Material of a kind of UHV transmission line damping conductor spacer rubber parts and preparation method thereof |
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| CN201310745501.8A CN103665600B (en) | 2013-12-30 | 2013-12-30 | Material of a kind of UHV transmission line damping conductor spacer rubber parts and preparation method thereof |
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| CN103665600B true CN103665600B (en) | 2016-03-02 |
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| CN106609004A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Damping rubber for spacing rod and preparation method thereof |
| WO2018235587A1 (en) * | 2017-06-22 | 2018-12-27 | Nok株式会社 | Rubber composition for anti-vibration rubber |
| CN115785578A (en) * | 2022-12-12 | 2023-03-14 | 中天科技装备电缆有限公司 | Rubber for damping spacer and preparation method and application thereof |
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| CN101451005A (en) * | 2007-11-30 | 2009-06-10 | 王极超 | Antishock insulation rubber member for high-tension cable |
| EP2544321A1 (en) * | 2011-07-04 | 2013-01-09 | Preformed Line Products (GB) Limited | Spacer damper clamp arm |
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2013
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| JPH06271709A (en) * | 1993-03-18 | 1994-09-27 | Meidensha Corp | Polymeric insulation material composition for outdoor use |
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