CN105585744A - Electric sealed waterproof electro-insulating rubber dough and preparation method thereof - Google Patents
Electric sealed waterproof electro-insulating rubber dough and preparation method thereof Download PDFInfo
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- CN105585744A CN105585744A CN201410566092.XA CN201410566092A CN105585744A CN 105585744 A CN105585744 A CN 105585744A CN 201410566092 A CN201410566092 A CN 201410566092A CN 105585744 A CN105585744 A CN 105585744A
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Abstract
Electric sealed waterproof electro-insulating rubber dough and its preparation method. The preparation method comprises the following steps: uniformly stirring 100 parts by weight of natural rubber particles and 58-60 parts by weight of channel black, adding 6-6.5 parts by weight of zinc oxide, 3-3.5 parts by weight of sulphur, 3.5-4 parts by weight of stearic acid, 0.4-0.6 part by weight of an accelerator DM and 1.3-1.5 parts by weight of an accelerator TMTD and uniformly stirring, adding 30 parts by weight of liquid polyisobutylene, 0.8-1 part by weight of a rubber antioxidant RD, 10-10.5 parts by weight of rosin and 10 parts by weight of alpha-pinene resin and uniformly stirring, heating to 100 DEG C and keeping for 40-60 min, cooling to room temperature, and sealing and packaging. By the use of the rubber dough, electric line contacts are effectively sealed and electro-insulated. The product has air isolation, water isolation and insulation effects, and protects line contacts exposed to the air or underground line contacts so as to prevent line contacts from oxidation and electric leakage and overlarge contact resistance and guarantee service life of electric lines.
Description
Technical field
The invention belongs to cable connector insulated enclosure field, particularly a kind of electric power water-tight electro-insulating rubber mud and preparation method thereof.
Background technology
Along with the increase of urban planning and construction, urban power distribution network transformation, aerial insulated wire is widely used, and the laying of buried cable increases in enormous quantities. Dig in the accident maintenance such as disconnected at electric power enterprise construction or cable, often there is underground power circuit joint, present power circuit, generally all with insulated hull, occurs that after power circuit joint, junction is outside exposed, or use adhesive plaster to be wound around, very easily produce oxidation, leaky occurs, affect line security, or cause that contact resistance is excessive, cause power circuit shortening in service life.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of electric power water-tight electro-insulating rubber mud and preparation method thereof; this rubber cement can effective sealing insulation processing power circuit contact; there is the effect of air-isolation, isolation moisture and insulation; protect exposed in air or underground line contacts; to avoid line contacts oxidation electric leakage, contact resistance excessive, ensure power circuit service life.
Technical solution of the present invention is:
A kind of electric power water-tight electro-insulating rubber mud, according to parts by weight meter, is made up of following raw material:
100 parts of natural rubbers;
30 parts of liquid polyisobutene;
10 parts of α pinene resins;
6 parts～6.5 parts, zinc oxide;
3 parts～3.5 parts, sulphur;
3.5 parts～4 parts of stearic acid;
0.4 part～0.6 part of altax;
1.3 parts～1.5 parts of Vulcanization accelerator TMTDs;
58 parts～60 parts of channel blacks;
0.8 part～1 part of rubber antiager RD;
10 parts～10.5 parts of rosin.
A kind of electric power water-tight electro-insulating rubber mud, its concrete steps are as follows:
According to parts by weight meter, by 100 parts of natural rubber particles and 58 parts～60 parts channel black uniform stirrings, add successively again 6 parts～6.5 parts zinc oxide, 3 parts～3.5 parts sulphur, 3.5 parts～4 parts stearic acid, 0.4 part～0.6 part altax and 1.3 parts～1.5 parts Vulcanization accelerator TMTDs to stir, finally add successively 30 parts of liquid polyisobutene, 0.8 part～1 part rubber antiager RD, 10 parts～10.5 parts rosin and 10 parts of α pinene resins to stir, then be heated to 100 DEG C and keep 40min～60min, be cooled to room temperature, pack.
Zinc oxide, the vulcanizing activator that rubber cement is synthetic and reinforcing agent, can promote sulfuration, improves rubber cement crosslink density, can improve preferably tack of materials, improves adhesive force and the ageing-resistant performance of rubber cement.
Sulphur, in rubber cement building-up process, and forms disulfide bond between the rubber molecule of chain, makes rubber molecule structure more stable.
Stearic acid, rubber cement synthesizes vulcanizing activator, plasticizer and softening agent, and stearic acid and zinc oxide compound use have synergy, play good sulfuration promotion and activation.
Rubber accelerator DM, chemical name: 2,2'-dithio-bis-benzothiazole, rubber cement synthesis accelerant, in sizing material, easily disperse, do not pollute, in the situation that having activating agent zinc oxide and stearic acid to exist, in the time vulcanizing together with sulphur, decomposite double-basis active sulfur or many bases active sulfur, can make rubber molecule be cross-linked.
Vulcanization accelerator TMTD, rubber cement synthesizes delayed action accelerator, combines use with zinc oxide, has excellent sulfuration facilitation.
Channel black, rubber cement synthesizes reinforcing agent, can increase hot strength and the percentage elongation of rubber cement, tear-proof and anti-cutting performance.
Liquid polyisobutene, has permanent adhesive, fabulous compatibility and resistance to ag(e)ing, can increase low-temperature pliability and the tack of rubber cement, extends storage period.
Rubber antiager RD, belongs to ketone amines antioxidants, very effective to the protection of thermo-oxidative ageing, and the catalytic oxidation of metal is also had to extremely strong inhibitory action.
Rosin, rubber cement softening agent, can increase rubber cement elasticity.
α pinene resin, has good heat endurance and electrical insulating property.
Beneficial effect of the present invention:
Preparation method is simple, easy to use; Rubber cement has good in shape property to irregular surface, good with various cable compatibilities, and copper, aluminium and cable sheath material are had to splendid adhesive property, wide-40 DEG C～+ 80 DEG C of serviceability temperature scope, can hardening, anti-tearly draw, water resistance is good, low-down water absorption rate; Energy effective sealing insulation processing power circuit contact; there is the effect of air-isolation, isolation moisture and insulation; protect exposed in air or underground line contacts; effectively avoid line contacts oxidation electric leakage, contact resistance excessive; ensure power circuit service life, and well reached insulation effect.
Detailed description of the invention
Embodiment 1
Take raw material: natural rubber 100g; Liquid polyisobutene 30g; α pinene resin 10g; Zinc oxide 6g; Sulphur 3.5g; Stearic acid 3.5g; 0.6g altax; 1.3g Vulcanization accelerator TMTD; Channel black 60g; 0.8g rubber antiager RD; Rosin 10.5g; By natural rubber particle and channel black uniform stirring, add successively again zinc oxide, sulphur, stearic acid, altax and Vulcanization accelerator TMTD to stir, finally add successively liquid polyisobutene, rubber antiager RD, rosin and α pinene resin to stir, then be heated to 100 DEG C and keep 40min, be cooled to room temperature, pack.
Construction method: rubber cement is filled in to power circuit junction and covers connecting surface, with hand spreading rubber cement, make it to be connected with power circuit fully bonding, to ensure that rubber cement and power circuit junction combine closely, then electric power immobilization with adhesive tape.
After construction, clay is solidified into indices after rubber bodies completely:
Hardness: 30 degree～50 degree;
Hot strength: 4MPa～5MPa;
Bonding strength: (copper aluminium) 5MPa～5.5MPa;
Pull apart elongation: 270%～350%;
Withstand voltage properties: 13KV/ second/MM;
Specific insulation: 6.8*1012Ω.CM；
Water imbibition: 0.41mg.com-2；
Serviceability temperature scope-40 DEG C～+ 80 DEG C.
Embodiment 2
Take raw material: natural rubber 100g; Liquid polyisobutene 30g; α pinene resin 10g; Zinc oxide 6.5g; Sulphur 3g; Stearic acid 4g; 0.4g altax; 1.5g Vulcanization accelerator TMTD; Channel black 58g; 1g rubber antiager RD; Rosin 10g; By natural rubber particle and channel black uniform stirring, add successively again zinc oxide, sulphur, stearic acid, altax and Vulcanization accelerator TMTD to stir, finally add successively liquid polyisobutene, rubber antiager RD, rosin and α pinene resin to stir, then be heated to 100 DEG C and keep 60min, be cooled to room temperature, pack.
Construction method: rubber cement is filled in to power circuit junction and covers connecting surface, with hand spreading rubber cement, make it to be connected with power circuit fully bonding, to ensure that rubber cement and power circuit junction combine closely, then electric power immobilization with adhesive tape.
After construction, clay is solidified into indices after rubber bodies completely:
Hardness: 30 degree～50 degree;
Hot strength: 4MPa～5MPa;
Bonding strength: (copper aluminium) 5MPa～5.5MPa;
Pull apart elongation: 270%～350%;
Withstand voltage properties: 13KV/ second/MM;
Specific insulation: 6.8*1012Ω.CM；
Water imbibition: 0.41mg.com-2；
Serviceability temperature scope-40 DEG C～+ 80 DEG C.
Embodiment 3
Take raw material: natural rubber 100g; Liquid polyisobutene 30g; α pinene resin 10g; Zinc oxide 6.2g; Sulphur 3.2g; Stearic acid 3.8g; 0.5g altax; 1.4g Vulcanization accelerator TMTD; Channel black 59g; 0.9g rubber antiager RD; Rosin 10.2g; By natural rubber particle and channel black uniform stirring, add successively again zinc oxide, sulphur, stearic acid, altax and Vulcanization accelerator TMTD to stir, finally add successively liquid polyisobutene, rubber antiager RD, rosin and α pinene resin to stir, then be heated to 100 DEG C and keep 50min, be cooled to room temperature, pack.
Construction method: rubber cement is filled in to power circuit junction and covers connecting surface, with hand spreading rubber cement, make it to be connected with power circuit fully bonding, to ensure that rubber cement and power circuit junction combine closely, then electric power immobilization with adhesive tape.
After construction, clay is solidified into indices after rubber bodies completely:
Hardness: 30 degree～50 degree;
Hot strength: 4MPa～5MPa;
Bonding strength: (copper aluminium) 5MPa～5.5MPa;
Pull apart elongation: 270%～350%;
Withstand voltage properties: 13KV/ second/MM;
Specific insulation: 6.8*1012Ω.CM；
Water imbibition: 0.41mg.com-2；
Serviceability temperature scope-40 DEG C～+ 80 DEG C.
Waterproof sealing, the diving electric shock cable connector waterproof insulation of the waterproof sealing of the major insulation that electric power water-tight electro-insulating rubber mud connects 10KV and following bus bar, the recovery of power cable insulation and water-proofing treatment, transition joint, the waterproof sealing protection of suspended insulated guide wire joint, ground wire have good effect; be applicable to insulation, waterproof and the protection of the filling of ground protection annex and waterproof and electric elements, and for high-low voltage electrical equipment box and irregular joint the inside and sealing around.
Claims (2)
1. an electric power water-tight electro-insulating rubber mud, is characterized in that: according to parts by weight meter, be made up of following raw material:
100 parts of natural rubbers;
30 parts of liquid polyisobutene;
10 parts of α pinene resins;
6 parts～6.5 parts, zinc oxide;
3 parts～3.5 parts, sulphur;
3.5 parts～4 parts of stearic acid;
0.4 part～0.6 part of altax;
1.3 parts～1.5 parts of Vulcanization accelerator TMTDs;
58 parts～60 parts of channel blacks;
0.8 part～1 part of rubber antiager RD;
10 parts～10.5 parts of rosin.
2. an electric power water-tight electro-insulating rubber mud, is characterized in that: concrete steps are as follows:
According to parts by weight meter, by 100 parts of natural rubber particles and 58 parts～60 parts channel black uniform stirrings, add successively again 6 parts～6.5 parts zinc oxide, 3 parts～3.5 parts sulphur, 3.5 parts～4 parts stearic acid, 0.4 part～0.6 part altax and 1.3 parts～1.5 parts Vulcanization accelerator TMTDs to stir, finally add successively 30 parts of liquid polyisobutene, 0.8 part～1 part rubber antiager RD, 10 parts～10.5 parts rosin and 10 parts of α pinene resins to stir, then be heated to 100 DEG C and keep 40min～60min, be cooled to room temperature, pack.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410566092.XA CN105585744B (en) | 2014-10-23 | 2014-10-23 | Electric power sealing waterproof insulation rubber cement and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410566092.XA CN105585744B (en) | 2014-10-23 | 2014-10-23 | Electric power sealing waterproof insulation rubber cement and preparation method thereof |
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| CN105585744A true CN105585744A (en) | 2016-05-18 |
| CN105585744B CN105585744B (en) | 2017-10-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543490A (en) * | 2016-11-25 | 2017-03-29 | 建新赵氏集团有限公司 | A kind of sizing material for improving bonding strength stability and preparation method thereof |
| CN106847503A (en) * | 2016-12-31 | 2017-06-13 | 刘思言 | Capacitor packing material is formulated |
| CN116951184A (en) * | 2023-09-20 | 2023-10-27 | 成都中科翼能科技有限公司 | Test pipeline sealing structure of gas turbine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153966A (en) * | 2011-02-24 | 2011-08-17 | 中科英华湖州工程技术研究中心有限公司 | Special hot melt adhesive for mating 1E-grade K1-type cable accessories for nuclear power station |
| CN102286162A (en) * | 2011-06-20 | 2011-12-21 | 沈阳天荣电缆材料有限公司 | Preparation method of deep sea cable filling strip |
| CN104059549A (en) * | 2013-03-20 | 2014-09-24 | 长春中科应化特种材料有限公司 | Transparent electric stress control clay and production method thereof |
-
2014
- 2014-10-23 CN CN201410566092.XA patent/CN105585744B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153966A (en) * | 2011-02-24 | 2011-08-17 | 中科英华湖州工程技术研究中心有限公司 | Special hot melt adhesive for mating 1E-grade K1-type cable accessories for nuclear power station |
| CN102286162A (en) * | 2011-06-20 | 2011-12-21 | 沈阳天荣电缆材料有限公司 | Preparation method of deep sea cable filling strip |
| CN104059549A (en) * | 2013-03-20 | 2014-09-24 | 长春中科应化特种材料有限公司 | Transparent electric stress control clay and production method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543490A (en) * | 2016-11-25 | 2017-03-29 | 建新赵氏集团有限公司 | A kind of sizing material for improving bonding strength stability and preparation method thereof |
| CN106847503A (en) * | 2016-12-31 | 2017-06-13 | 刘思言 | Capacitor packing material is formulated |
| CN116951184A (en) * | 2023-09-20 | 2023-10-27 | 成都中科翼能科技有限公司 | Test pipeline sealing structure of gas turbine |
| CN116951184B (en) * | 2023-09-20 | 2023-12-26 | 成都中科翼能科技有限公司 | Test pipeline sealing structure of gas turbine |
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| Publication number | Publication date |
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| CN105585744B (en) | 2017-10-20 |
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