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A kind of sheath material for underground communication cable and preparation method thereof

A sheath material and underground communication technology, applied in the direction of building insulation materials, circuits, electrical components, etc., can solve the problems that the softness and corrosion resistance cannot be improved at the same time, so as to improve the volume resistivity performance and the fracture tensile strain Performance, the effect of improving soft performance

Active Publication Date: 2020-12-22
ANHUI YUANZHENG CABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the deficiencies of the prior art, the present invention provides a sheath material for underground communication cables and a preparation method thereof, which solves the technical problem that the sheath material in the prior art cannot simultaneously improve softness and corrosion resistance

Method used

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  • A kind of sheath material for underground communication cable and preparation method thereof
  • A kind of sheath material for underground communication cable and preparation method thereof
  • A kind of sheath material for underground communication cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The sheath material for underground communication cables includes raw materials in the following proportions by weight: 40 parts of polyvinyl chloride, 10 parts of carbon fiber, 23 parts of moisture-proof filler, 16 parts of acid and alkali corrosion-resistant filler, and 17 parts of flexible filler;

[0054] Wherein, the above-mentioned moisture-proof filler is composed of 10 mass parts of petroleum asphalt, 5 mass parts of natural asphalt and 8 mass parts of butyl rubber;

[0055] The above-mentioned acid and alkali corrosion-resistant filler is composed of 5 parts by mass of epoxy-phenolic paint, 3 parts by mass of polyurethane paint, 5 parts by mass of epoxy resin coating and 3 parts by mass of three polyethylene anticorrosive coatings;

[0056] The above-mentioned flexible filler consists of 2 mass parts of epoxy soybean oil, 3 mass parts of epoxy fatty acid octyl ester, 4 mass parts of tricresyl phosphate, 3 mass parts of triphenyl phosphate and 5 mass parts of tri...

Embodiment 2

[0064] The sheath material for underground communication cables includes raw materials in the following proportions by weight: 50 parts of polyvinyl chloride, 15 parts of carbon fiber, 33 parts of moisture-proof filler, 23 parts of acid and alkali corrosion-resistant filler, and 24 parts of flexible filler;

[0065] Wherein, the above-mentioned moisture-proof filler is composed of 15 parts by mass of petroleum pitch, 6 parts by mass of natural pitch and 12 parts by mass of butyl rubber;

[0066] The above-mentioned acid and alkali corrosion-resistant filler is composed of 6 mass parts of epoxy-phenolic paint, 4 mass parts of polyurethane paint, 8 mass parts of epoxy resin coating and 5 mass parts of three polyethylene anticorrosive coatings;

[0067] Above-mentioned flexible filler is made of the epoxy soybean oil of 3 mass parts, the octyl epoxy fatty acid of 4 mass parts, the tricresyl phosphate of 7 mass parts, the triphenyl phosphate of 4 mass parts and the trimellitic acid...

Embodiment 3

[0075] The sheath material for underground communication cables includes raw materials in the following proportions by weight: 80 parts of polyvinyl chloride, 20 parts of carbon fiber, 43 parts of moisture-proof filler, 31 parts of acid and alkali corrosion-resistant filler, and 28 parts of flexible filler;

[0076] Wherein, the above-mentioned moisture-proof filler is composed of 20 mass parts of petroleum asphalt, 8 mass parts of natural asphalt and 15 mass parts of butyl rubber;

[0077] The above-mentioned acid and alkali corrosion-resistant filler is composed of 8 mass parts of epoxy-phenolic paint, 5 mass parts of polyurethane paint, 10 mass parts of epoxy resin coating and 8 mass parts of three polyethylene anticorrosive coatings;

[0078] Above-mentioned flexible filler is made of the epoxy soybean oil of 5 mass parts, the epoxy fatty acid octyl ester of 5 mass parts, the tricresyl phosphate of 7 mass parts, the triphenyl phosphate of 5 mass parts and the trimellitic ac...

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Abstract

The invention relates to the technical field of cable sheath, and discloses a sheath material for an underground communication cable. The sheath material comprises the following raw materials in partsby weight: 40-80 parts of polyvinyl chloride, 10-20 parts of carbon fibers, 23-43 parts of moisture-proof filler, 16-31 parts of acid-alkali corrosion-resistant filler and 17-29 parts of flexibilityincreasing filler, wherein the moisture-proof filler is prepared from petroleum asphalt, natural asphalt and butyl rubber; the acid-alkali corrosion-resistant filler is composed of epoxy-phenolic paint, polyurethane paint, an epoxy resin coating and a trimeric ethylene anticorrosive coating; and the flexibility increasing filler is composed of epoxy soybean oil, epoxy fatty acid octyl ester, tricresyl phosphate, triphenyl phosphate and trimellitate. The invention further discloses a preparation method of the sheath material for the underground communication cable. According to the invention, the technical effects of remarkably improving flexibility and corrosion resistance of the sheath material are achieved, and the technical problem that flexibility and corrosion resistance of a sheath material in the prior art cannot be simultaneously improved is solved.

Description

technical field [0001] The invention relates to the technical field of cable sheaths, in particular to a sheath material for underground communication cables and a preparation method thereof. Background technique [0002] The communication cable is a communication line composed of a cable core made of multiple insulated wires or conductors and an outer sheath that protects the cable core from moisture and mechanical damage. There are many types of communication cables such as overhead, direct burial, pipeline and underwater Among them, underground communication cables refer to cables laid underground, including pipeline communication cables and buried communication cables. [0003] Since underground communication cables are in direct contact with water bodies, acidic substances, and alkaline substances, during long-term use, underground moisture, acidic substances, and alkaline substances will continuously erode the sheath of underground communication cables. If the sheath o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L95/00C08L23/22C08L63/00C08L75/04C08L91/00C08K13/04C08K5/1515C08K5/523C08K5/12C08K7/06H01B3/44
CPCC08K2201/014C08L27/06C08L2203/202C08L2205/025C08L2205/035H01B3/443C08L95/00C08L23/22C08L63/00C08L75/04C08L91/00C08K13/04C08K5/1515C08K5/523C08K5/12C08K7/06
Inventor 不公告发明人
Owner ANHUI YUANZHENG CABLE TECH
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