Seabed communication composite cable with modified polyacrylonitrile sheath

A polyacrylonitrile, submarine communication technology, used in submarine cables, cables with double-stranded/quad-stranded, insulated cables, etc., can solve economic construction and military communication losses, military submarine cable damage, submarine The water resistance and breakdown resistance of the control cable are difficult to meet the actual needs, so as to achieve the effect of easy promotion, simple steps and excellent water resistance

Inactive Publication Date: 2017-05-10
WUHU HANGTIAN SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's research and development work in this field started relatively late. The original domestic communication equipment buried to the seabed is generally buried shallower due to factors such as the manufacturing technology of the buried machine equipment. Higher and higher, military submarine cables are destroyed from time to time, causing huge losses to national economic construction and military communications
[0003] Submarine communication cables are an important variety of communication cables. Although submarine cables can meet the current needs, under deep sea conditions, the water resistance and breakdown resistance of submarine control cables are difficult to meet actual needs.

Method used

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  • Seabed communication composite cable with modified polyacrylonitrile sheath

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preparation example Construction

[0030] The present invention also provides a preparation method of a submarine communication integrated cable provided with a modified polyacrylonitrile sheath, comprising:

[0031] 1) Extrude the modified polyacrylonitrile on the outside of the tinned conductor to form a modified polyacrylonitrile insulating sleeve, and then wrap the polyvinyl chloride water-blocking tape around the outside of the modified polyacrylonitrile insulating sleeve to form a polyvinyl chloride Water blocking tape covering layer, then braid tinned copper wire on the outside of PVC water blocking tape covering layer to form tinned copper wire braided shielding layer, then extrude modified polyacrylonitrile on tinned copper wire A modified polyacrylonitrile sheath is formed on the outside of the braided shielding layer to obtain a first wire 1;

[0032]2) Extrude cross-linked polyacrylonitrile on the outside of the glass fiber core to form a cross-linked polyacrylonitrile insulation sleeve, and then br...

Embodiment 1

[0040] 1) Under the condition of a negative pressure of -4MPa in vacuum, ash calcium powder (particle size is 0.5mm), trioctyl ammonium methyl bisulfate and hydrochloric acid solution (concentration is 27% by weight) according to 100:26: Mix at 180°C and perform activation treatment at 80°C for 4 hours, then filter the filter cake to obtain activated ash calcium powder;

[0041] 2) Polyacrylonitrile (weight average molecular weight is 9000), butadiene rubber (weight average molecular weight is 2500), methacrylic acid-butadiene-styrene copolymer (weight average molecular weight is 8000), glycerol, ortho Isodecyl phthalate, activated alumina, loofah, petrolatum, aminopropyltriethoxysilane, bagasse, dicumyl peroxide, paraffin, silicon carbide whiskers, and activated calcium ash powder according to 100: 26: 44: 38: 72: 10: 16: 26: 58: 37: 45: 32: 0.6: 17 weight ratio mixing, melting at 218 °C for 70mim, cooling and molding at 13 °C to obtain modified polypropylene Nitrile A1.

Embodiment 2

[0043] 1) Under the condition of a negative pressure of -3MPa in vacuum, ash calcium powder (particle size is 0.4mm), trioctyl ammonium methyl hydrogen sulfate and hydrochloric acid solution (concentration is 25% by weight) according to 100:25: Mix at 150°C and perform activation treatment at 78°C for 3 hours, then filter the filter cake to obtain activated ash calcium powder;

[0044] 2) Polyacrylonitrile (weight-average molecular weight is 8000), butadiene rubber (weight-average molecular weight is 2000), methacrylic acid-butadiene-styrene copolymer (weight-average molecular weight is 7000), glycerol, ortho Isodecyl phthalate, activated alumina, loofah, petrolatum, aminopropyltriethoxysilane, bagasse, dicumyl peroxide, paraffin, silicon carbide whiskers, and activated calcium ash powder according to 100: 25: 40: 34: 66: 9: 14: 24: 55: 35: 41: 29: 0.2: 15 weight ratio mixing, melting at 215 °C for 60mim, cooling and molding at 10 °C to obtain modified polypropylene Nitrile A...

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Abstract

The invention discloses a seabed communication composite cable with a modified polyacrylonitrile sheath. The seabed communication composite cable comprises a wire core. A polyvinyl chloride water-blocking tape coating layer, a galvanized steel wire braided shielding sleeve and a modified polyacrylonitrile sheath successively sleeve the wire core from inside to outside. Silicon gel is filled between the wire core and the polyvinyl chloride water-blocking tape coating layer. Silicon gel is filled between the galvanized steel wire braided shielding sleeve and the modified polyacrylonitrile sheath. The wire core comprises a first conductor, a single-mode fiber, a coaxial RF cable and a second conductor. The seabed communication composite cable which is prepared through a preparation method of the invention has advantages of excellent water resistance, high conductivity and high breakdown resistance. Furthermore the preparation method has advantages of simple process and easy popularization.

Description

technical field [0001] The invention relates to a cable, in particular to a submarine communication integrated cable provided with a modified polyacrylonitrile sheath. Background technique [0002] Since the beginning of the 21st century, with the gradual development of the marine economy, people's understanding and understanding of the ocean has continued to deepen. Sea communications and offshore oil development all need matching submarine cable products. Communication equipment is buried on the seabed, and the burying machine equipment (underwater robot) used requires relevant tethering cables to match it. Tether products have gradually developed from a single function to a multi-purpose, multi-functional, and diversified structure. The mooring cable connecting the command center on the ship with the underwater equipment is completed. The research and development of this kind of mooring cable is earlier in foreign countries, and the main technology has been mastered, an...

Claims

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Application Information

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IPC IPC(8): H01B7/14H01B7/17H01B7/282H01B7/285H01B11/06H01B11/20
CPCH01B7/14H01B7/17H01B7/2825H01B7/285H01B11/06H01B11/20
Inventor 米春海何源贾倩倩汪晓勤陶锴
Owner WUHU HANGTIAN SPECIAL CABLE FACTORY
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