CN102504421B - Insulation rubber for oceaneering fireproof medium-voltage electric cables and manufacturing method thereof - Google Patents
Insulation rubber for oceaneering fireproof medium-voltage electric cables and manufacturing method thereof Download PDFInfo
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Abstract
The invention discloses insulation rubber for oceaneering fireproof medium-voltage electric cables and a manufacturing method thereof. The raw materials of the insulation rubber include: 16 parts of ethylene propylene rubber 2470, 7 to 8 parts of ethylene propylene rubber 4044, 1.0 to 1.5 parts of paroline, 1.0 to 1.5 parts of microcrystalline wax, 1 to 2 parts of white carbon black, 15 to 20 parts of superfine talcum powder, 12 to 16 parts of modified roasting pot clay, 0.2 to 0.4 part of coupling agent A-171, 0.4 to 0.6 part of age resistor MB, 0.4 to 0.6 part of age resistor RD and 0.8 to 1.4 parts of vulcanizer DCP. The manufacturing method includes steps of mixing the ethylene propylene rubber uniformly, and then adding paroline, microcrystalline wax, the white carbon black, the superfine talcum powder and the modified roasting pot clay sequentially to mix uniformly; folding rubber triangularly and filtering rubber after adding the coupling agent to mix uniformly; adding the age resistor and the vulcanizer DCP to mix uniformly, and discharging rubber sheets by means of folding triangularly. The insulation resistance of the insulation rubber can reach 2800M omega km or above, break elongation ratio of the insulation rubber is larger than or equal to 330% and mechanical performance thereof is excellent. The insulation rubber is anti-ageing, corrosion-resistant and capable of meeting the service requirements of the oceaneering fireproof medium-voltage electric cables.
Description
Technical field
The present invention relates to a kind of cable, particularly a kind of insulation rubber for oceaneering fireproof medium-voltage electric cables.The invention still further relates to a kind of manufacture method of insulation rubber for oceaneering fireproof medium-voltage electric cables.
Background technology
Be accompanied by the application of high-power middle piezoelectricity gas equipment on boats and ships and oceanographic engineering, the marine medium-voltage power cable is used more and more.Along with the requirement raising of electrical safety, common flame retardant cable can't satisfy service requirements, in the place an urgent demand that the fire prevention condition is had relatively high expectations, supporting with it fire-proof medium-voltage cable is arranged.In the market or utilize common flame retardant cable to substitute, or adopt the land to substitute with midium voltage cable, but all there is inapplicability in these two for oceanographic engineering and boats and ships.Simultaneously relatively narrow and small due to the boats and ships spaces, general medium-pressure power cable adopts crosslinked polyetylene insulated, and its material is harder, can't satisfy boats and ships to the flexible requirement of cable.
Summary of the invention
Primary and foremost purpose of the present invention is, overcomes problems of the prior art, and a kind of insulation rubber for oceaneering fireproof medium-voltage electric cables is provided, and mechanical property is superior, and insulation is reliable, and corrosion-resistant, ageing-resistant.
For solving above technical problem, a kind of insulation rubber for oceaneering fireproof medium-voltage electric cables provided by the present invention, feed composition and the weight content of described electro-insulating rubber are as follows, ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7～8 part; Paraffin oil: 1.0～1.5 parts; Microcrystalline wax: 1.0～1.5 parts; White carbon black: 1～2 part; Superfine talcum powder: 15～20 parts; Modification calcinated argil: 12～16 parts; Vinyltrimethoxy silane: 0.2～0.4 part; 2 mercapto benzimidazole: 0.4～0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.4～0.6 part; Dicumyl peroxide: 0.8～1.4 part.
With respect to prior art, the present invention has obtained following beneficial effect: more than the insulation resistance of this electro-insulating rubber can reach 2800 M Ω km, elongation at break 〉=330%, tensile strength is greater than 7.5MPa, mechanical property is superior, ageing-resistant, corrosion-resistant, can satisfy oceanographic engineering with the service requirements of fire-resistant medium-pressure power cable.
As preferred version of the present invention, feed composition and the weight content of described electro-insulating rubber are as follows: ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7 part; Paraffin oil: 1.0 parts; Microcrystalline wax: 1.0 parts; White carbon black: 1 part; Superfine talcum powder: 15 parts; Modification calcinated argil: 12 parts; Vinyltrimethoxy silane: 0.2 part; 2 mercapto benzimidazole: 0.4 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.4 part; Dicumyl peroxide: 0.8 part.
As preferred version of the present invention, feed composition and the weight content of described electro-insulating rubber are as follows: ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:8 part; Paraffin oil: 1.5 parts; Microcrystalline wax: 1.5 parts; White carbon black: 2 parts; Superfine talcum powder: 20 parts; Modification calcinated argil: 16 parts; Vinyltrimethoxy silane: 0.4 part; 2 mercapto benzimidazole: 0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.6 part; Dicumyl peroxide: 1.4 parts.
As preferred version of the present invention, feed composition and the weight content of described electro-insulating rubber are as follows: ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7.5 part; Paraffin oil: 1.2 parts; Microcrystalline wax: 1.3 parts; White carbon black: 1.5 parts; Superfine talcum powder: 18 parts; Modification calcinated argil: 14 parts; Vinyltrimethoxy silane: 0.3 part; 2 mercapto benzimidazole: 0.5 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.5 part; Dicumyl peroxide: 1.1 parts.
Another object of the present invention is, a kind of manufacture method of insulation rubber for oceaneering fireproof medium-voltage electric cables is provided, the electro-insulating rubber that the method manufacturing forms, and mechanical property is superior, and insulation is reliable, and corrosion-resistant, ageing-resistant.
For solving above technical problem, the manufacture method of insulation rubber for oceaneering fireproof medium-voltage electric cables provided by the present invention, the preparation method of described electro-insulating rubber is as follows: (1) prepares raw material, ethylene-propylene rubber(EPR) 2470:16 part by following component and weight content; Ethylene-propylene rubber(EPR) 4044:7～8 part; Paraffin oil: 1.0～1.5 parts; Microcrystalline wax: 1.0～1.5 parts; White carbon black: 1～2 part; Superfine talcum powder: 15～20 parts; Modification calcinated argil: 12～16 parts; Vinyltrimethoxy silane: 0.2～0.4 part; 2 mercapto benzimidazole: 0.4～0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.4～0.6 part; Dicumyl peroxide: 0.8～1.4 part; (2) first that ethylene-propylene rubber(EPR) 2470 and ethylene-propylene rubber(EPR) 4044 is mixing evenly, then add successively paraffin oil, microcrystalline wax, white carbon black, superfine talcum powder, modification calcinated argil on Banbury mixer mixing 3～5 minutes; Added again vinyltrimethoxy silane mixing 1.5～2 minutes, mixing evenly after blanking, upper three-roller open mill adopts 20 orders+40 orders+60 order three metafiltration nets filter rubbers after playing four triangle bags; After filter rubber slice, upper Banbury mixer, add 2 mercapto benzimidazole, 2,2,4-trimethylammonium-1, and then 2-dihyaroquinoline polymer and dicumyl peroxide and mix made a call to ten triangles and contracted out sheet in mill, parked at least 6 hours after slice again.
With respect to prior art, the cable that manufacturing of the present invention forms has been obtained following beneficial effect: the electro-insulating rubber that the method manufacturing forms, more than its insulation resistance can reach 2800 M Ω km, elongation at break 〉=330%, tensile strength is greater than 7.5MPa, and mechanical property is superior, and is ageing-resistant, corrosion-resistant, can satisfy oceanographic engineering with the service requirements of fire-resistant medium-pressure power cable.
As preferred version of the present invention, feed composition and the weight content of described electro-insulating rubber are as follows: ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7 part; Paraffin oil: 1.0 parts; Microcrystalline wax: 1.0 parts; White carbon black: 1 part; Superfine talcum powder: 15 parts; Modification calcinated argil: 12 parts; Vinyltrimethoxy silane: 0.2 part; 2 mercapto benzimidazole: 0.4 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.4 part; Dicumyl peroxide: 0.8 part.
As preferred version of the present invention, feed composition and the weight content of described electro-insulating rubber are as follows: ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:8 part; Paraffin oil: 1.5 parts; Microcrystalline wax: 1.5 parts; White carbon black: 2 parts; Superfine talcum powder: 20 parts; Modification calcinated argil: 16 parts; Vinyltrimethoxy silane: 0.4 part; 2 mercapto benzimidazole: 0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.6 part; Dicumyl peroxide: 1.4 parts.
As preferred version of the present invention, feed composition and the weight content of described electro-insulating rubber are as follows: ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7.5 part; Paraffin oil: 1.2 parts; Microcrystalline wax: 1.3 parts; White carbon black: 1.5 parts; Superfine talcum powder: 18 parts; Modification calcinated argil: 14 parts; Vinyltrimethoxy silane: 0.3 part; 2 mercapto benzimidazole: 0.5 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.5 part; Dicumyl peroxide: 1.1 parts.
As preferred version of the present invention, when described electro-insulating rubber was extruded, the rubber extruding machine processing parameter was: head temperature: 75 ℃ ± 5 ℃; Fuselage one district's temperature: 68 ℃ ± 5 ℃; Fuselage two district's temperature: 70 ℃ ± 5 ℃; The cooled screw mode of rubber extruding machine is water cooling, vulcanizes under the pressure of 0.8～1.0MPa after extruding.
Embodiment
Embodiment one
The preparation process of electro-insulating rubber is as follows:
(1) prepare raw material by following component and weight content: ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7 part; Paraffin oil: 1.0 parts; Microcrystalline wax: 1.0 parts; White carbon black: 1 part; Superfine talcum powder: 15 parts; Modification calcinated argil: 12 parts; Vinyltrimethoxy silane (coupling agent A-171): 0.2 part; 2 mercapto benzimidazole (antioxidant MB): 0.4 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer (anti-aging agent RD): 0.4 part; Dicumyl peroxide (vulcanizing agent DCP): 0.8 part.
(2) first that ethylene-propylene rubber(EPR) 2470 and ethylene-propylene rubber(EPR) 4044 is mixing evenly, then add successively paraffin oil, microcrystalline wax, white carbon black, superfine talcum powder, modification calcinated argil on Banbury mixer mixing 3 minutes; Added again vinyltrimethoxy silane mixing 1.5 minutes, mixing evenly after blanking, upper three-roller open mill adopts 20 orders+40 orders+60 order three metafiltration nets filter rubbers after playing four triangle bags; After filter rubber slice, upper Banbury mixer, add 2 mercapto benzimidazole, 2,2,4-trimethylammonium-1, and then 2-dihyaroquinoline polymer and dicumyl peroxide and mix made a call to ten triangles and contracted out sheet in mill, parked after slice 6 hours again.
When squeezing electro-insulating rubber, the rubber extruding machine processing parameter is: head temperature: 75 ℃ ± 5 ℃; Fuselage one district's temperature: 68 ℃ ± 5 ℃; Fuselage two district's temperature: 70 ℃ ± 5 ℃; The cooled screw mode of rubber extruding machine is water cooling, vulcanizes under the pressure of 0.8MPa after extruding.
Embodiment two
The preparation process of electro-insulating rubber is as follows:
(1) prepare raw material by following component and weight content: ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:8 part; Paraffin oil: 1.5 parts; Microcrystalline wax: 1.5 parts; White carbon black: 2 parts; Superfine talcum powder: 20 parts; Modification calcinated argil: 16 parts; Vinyltrimethoxy silane (coupling agent A-171): 0.4 part; 2 mercapto benzimidazole (antioxidant MB): 0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer (anti-aging agent RD): 0.6 part; Dicumyl peroxide (vulcanizing agent DCP): 1.4 parts.
(2) first that ethylene-propylene rubber(EPR) 2470 and ethylene-propylene rubber(EPR) 4044 is mixing evenly, then add successively paraffin oil, microcrystalline wax, white carbon black, superfine talcum powder, modification calcinated argil on Banbury mixer mixing 5 minutes; Added again vinyltrimethoxy silane mixing 2 minutes, mixing evenly after blanking, upper three-roller open mill adopts 20 orders+40 orders+60 order three metafiltration nets filter rubbers after playing four triangle bags; After filter rubber slice, upper Banbury mixer, add 2 mercapto benzimidazole, 2,2,4-trimethylammonium-1, and then 2-dihyaroquinoline polymer and dicumyl peroxide and mix made a call to ten triangles and contracted out sheet in mill, parked after slice 8 hours again.
When squeezing electro-insulating rubber, the rubber extruding machine processing parameter is: head temperature: 75 ℃ ± 5 ℃; Fuselage one district's temperature: 68 ℃ ± 5 ℃; Fuselage two district's temperature: 70 ℃ ± 5 ℃; The cooled screw mode of rubber extruding machine is water cooling, vulcanizes under the pressure of 0.8～1.0MPa after extruding.
Embodiment three
The preparation process of electro-insulating rubber is as follows:
(1) prepare raw material by following component and weight content:
Ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7.5 part; Paraffin oil: 1.2 parts; Microcrystalline wax: 1.3 parts; White carbon black: 1.5 parts; Superfine talcum powder: 18 parts; Modification calcinated argil: 14 parts; Vinyltrimethoxy silane (coupling agent A-171): 0.3 part; 2 mercapto benzimidazole (antioxidant MB): 0.5 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer (anti-aging agent RD): 0.5 part; Dicumyl peroxide (vulcanizing agent DCP): 1.1 parts.
(2) first that ethylene-propylene rubber(EPR) 2470 and ethylene-propylene rubber(EPR) 4044 is mixing evenly, then add successively paraffin oil, microcrystalline wax, white carbon black, superfine talcum powder, modification calcinated argil on Banbury mixer mixing 4 minutes; Added again vinyltrimethoxy silane mixing 1.8 minutes, mixing evenly after blanking, upper three-roller open mill adopts 20 orders+40 orders+60 order three metafiltration nets filter rubbers after playing four triangle bags; After filter rubber slice, upper Banbury mixer, add 2 mercapto benzimidazole, 2,2,4-trimethylammonium-1, and then 2-dihyaroquinoline polymer and dicumyl peroxide and mix made a call to ten triangles and contracted out sheet in mill, parked after slice 7 hours again.
When squeezing electro-insulating rubber, the rubber extruding machine processing parameter is: head temperature: 75 ℃ ± 5 ℃; Fuselage one district's temperature: 68 ℃ ± 5 ℃; Fuselage two district's temperature: 70 ℃ ± 5 ℃; The cooled screw mode of rubber extruding machine is water cooling, vulcanizes under the pressure of 0.9MPa after extruding.
To the aging front measuring mechanical property result of electro-insulating rubber such as table 1 in embodiment one to embodiment three:
Table 1
| ? | Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| Tensile strength | N/mm2 | ≥4.8 | 7.8 | 9.0 | 8.2 |
| Elongation at break | % | ≥200 | 370 | 330 | 340 |
To the measuring mechanical property result after electro-insulating rubber oven ageing in embodiment one to embodiment three, without conductor such as table 2, without the conductor aging condition: 135 ± 2 ℃ of temperature, time: 168h.
Table 2
Measuring mechanical property result to after electro-insulating rubber oven ageing in embodiment one to embodiment three has conductor such as table 3, and the conductor aging condition is arranged: 150 ± 3 ℃ of temperature, time: 168h.
Table 3
To measuring mechanical property result such as the table 4 after electro-insulating rubber air bomb aging in embodiment one to embodiment three, aging condition: 127 ± 1 ℃ of temperature, time 40h, pressure 56 N/mm2.
Table 4
To measuring mechanical property result such as the table 5 of the hot elongation test of electro-insulating rubber in embodiment one to embodiment three, test conditions: 250 ± 3 ℃ for the treatment of temps, time length 15 min, mechanical stress 20 N/cm2.
Table 5
As shown in table 6 to the minimum insulation resistance of electro-insulating rubber in embodiment one to embodiment three (20 ℃ time) test result.
Table 6
| ? | Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| Insulation resistance (20 ℃) | MΩ·km | ≥1500 | 3120 | 3400 | 2930 |
To ac capacitor increment rate test result such as table 7 after 50 ℃ of water of electro-insulating rubber immersion in embodiment one to embodiment three.In table numerical value be respectively the 14th day with the difference of the 1st day, the 7th day.
Table 7
| ? | Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| 14-1（d） | % | 15 | 1.1 | 2.4 | 3.4 |
| 14-7（d） | % | 5 | 1.2 | 1.1 | 1.1 |
To the additional weathering test result of finished cable in embodiment one to embodiment three such as table 8, aging condition: 95 ± 2 ℃ of temperature, time 168h.
Table 8
| ? | Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| The maximum velocity of variation of tensile strength | % | ±30 | +1 | -3 | -4 |
| The maximum velocity of variation of elongation at break | % | ±30 | +2 | -7 | -6 |
To finished cable ozone resistance test result such as table 9 in embodiment one to embodiment three, test conditions: 25 ± 2 ℃ of temperature, time 30h, ozone concn 0.025～0.030%.
Table 9
| ? | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| Ozone resistance test | The surface is without cracking | Without cracking | Without cracking | Without cracking |
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (9)
1. an insulation rubber for oceaneering fireproof medium-voltage electric cables, is characterized in that, feed composition and the weight content of described electro-insulating rubber are as follows, ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7～8 part; Paraffin oil: 1.0～1.5 parts; Microcrystalline wax: 1.0～1.5 parts; White carbon black: 1～2 part; Superfine talcum powder: 15～20 parts; Modification calcinated argil: 12～16 parts; Vinyltrimethoxy silane: 0.2～0.4 part; 2 mercapto benzimidazole: 0.4～0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.4～0.6 part; Dicumyl peroxide: 0.8～1.4 part.
2. insulation rubber for oceaneering fireproof medium-voltage electric cables according to claim 1, is characterized in that, feed composition and the weight content of described electro-insulating rubber are as follows, ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7 part; Paraffin oil: 1.0 parts; Microcrystalline wax: 1.0 parts; White carbon black: 1 part; Superfine talcum powder: 15 parts; Modification calcinated argil: 12 parts; Vinyltrimethoxy silane: 0.2 part; 2 mercapto benzimidazole: 0.4 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.4 part; Dicumyl peroxide: 0.8 part.
3. insulation rubber for oceaneering fireproof medium-voltage electric cables according to claim 1, is characterized in that, feed composition and the weight content of described electro-insulating rubber are as follows, ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:8 part; Paraffin oil: 1.5 parts; Microcrystalline wax: 1.5 parts; White carbon black: 2 parts; Superfine talcum powder: 20 parts; Modification calcinated argil: 16 parts; Vinyltrimethoxy silane: 0.4 part; 2 mercapto benzimidazole: 0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.6 part; Dicumyl peroxide: 1.4 parts.
4. insulation rubber for oceaneering fireproof medium-voltage electric cables according to claim 1, is characterized in that, feed composition and the weight content of described electro-insulating rubber are as follows, ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7.5 part; Paraffin oil: 1.2 parts; Microcrystalline wax: 1.3 parts; White carbon black: 1.5 parts; Superfine talcum powder: 18 parts; Modification calcinated argil: 14 parts; Vinyltrimethoxy silane: 0.3 part; 2 mercapto benzimidazole: 0.5 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.5 part; Dicumyl peroxide: 1.1 parts.
5. the manufacture method of an insulation rubber for oceaneering fireproof medium-voltage electric cables, is characterized in that, the preparation method of described electro-insulating rubber is as follows: (1) prepares raw material, ethylene-propylene rubber(EPR) 2470:16 part by following component and weight content; Ethylene-propylene rubber(EPR) 4044:7～8 part; Paraffin oil: 1.0～1.5 parts; Microcrystalline wax: 1.0～1.5 parts; White carbon black: 1～2 part; Superfine talcum powder: 15～20 parts; Modification calcinated argil: 12～16 parts; Vinyltrimethoxy silane: 0.2～0.4 part; 2 mercapto benzimidazole: 0.4～0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.4～0.6 part; Dicumyl peroxide: 0.8～1.4 part; (2) first that ethylene-propylene rubber(EPR) 2470 and ethylene-propylene rubber(EPR) 4044 is mixing evenly, then add successively paraffin oil, microcrystalline wax, white carbon black, superfine talcum powder, modification calcinated argil on Banbury mixer mixing 3～5 minutes; Added again vinyltrimethoxy silane mixing 1.5～2 minutes, mixing evenly after blanking, upper three-roller open mill adopts 20 orders+40 orders+60 order three metafiltration nets filter rubbers after playing four triangle bags; After filter rubber slice, upper Banbury mixer, add 2 mercapto benzimidazole, 2,2,4-trimethylammonium-1, and then 2-dihyaroquinoline polymer and dicumyl peroxide and mix made a call to ten triangles and contracted out sheet in mill, parked at least 6 hours after slice again.
6. the manufacture method of insulation rubber for oceaneering fireproof medium-voltage electric cables according to claim 5, is characterized in that, feed composition and the weight content of described electro-insulating rubber are as follows, ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7 part; Paraffin oil: 1.0 parts; Microcrystalline wax: 1.0 parts; White carbon black: 1 part; Superfine talcum powder: 15 parts; Modification calcinated argil: 12 parts; Vinyltrimethoxy silane: 0.2 part; 2 mercapto benzimidazole: 0.4 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.4 part; Dicumyl peroxide: 0.8 part.
7. the manufacture method of insulation rubber for oceaneering fireproof medium-voltage electric cables according to claim 5, is characterized in that, feed composition and the weight content of described electro-insulating rubber are as follows, ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:8 part; Paraffin oil: 1.5 parts; Microcrystalline wax: 1.5 parts; White carbon black: 2 parts; Superfine talcum powder: 20 parts; Modification calcinated argil: 16 parts; Vinyltrimethoxy silane: 0.4 part; 2 mercapto benzimidazole: 0.6 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.6 part; Dicumyl peroxide: 1.4 parts.
8. the manufacture method of insulation rubber for oceaneering fireproof medium-voltage electric cables according to claim 5, is characterized in that, feed composition and the weight content of described electro-insulating rubber are as follows, ethylene-propylene rubber(EPR) 2470:16 part; Ethylene-propylene rubber(EPR) 4044:7.5 part; Paraffin oil: 1.2 parts; Microcrystalline wax: 1.3 parts; White carbon black: 1.5 parts; Superfine talcum powder: 18 parts; Modification calcinated argil: 14 parts; Vinyltrimethoxy silane: 0.3 part; 2 mercapto benzimidazole: 0.5 part; 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer: 0.5 part; Dicumyl peroxide: 1.1 parts.
9. the manufacture method of the described insulation rubber for oceaneering fireproof medium-voltage electric cables of any one according to claim 5 to 8, is characterized in that, when described electro-insulating rubber was extruded, the rubber extruding machine processing parameter was: head temperature: 75 ℃ ± 5 ℃; Fuselage one district's temperature: 68 ℃ ± 5 ℃; Fuselage two district's temperature: 70 ℃ ± 5 ℃; The cooled screw mode of rubber extruding machine is water cooling, vulcanizes under the pressure of 0.8～1.0MPa after extruding.
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| CN112029201B (en) * | 2020-09-08 | 2022-12-13 | 瑞安复合材料(深圳)有限公司 | Chemical corrosion resistant insulating material and preparation method thereof |
| CN113754961A (en) * | 2021-08-26 | 2021-12-07 | 浙江韦氏电器有限公司 | Rubber compound, preparation method and application |
| CN115181367A (en) * | 2022-07-22 | 2022-10-14 | 上海起帆电缆股份有限公司 | Hard ethylene propylene insulation rubber for electric automobile cable and preparation method thereof |
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