Weather-resistant high-voltage-resistant cable sheath material

A sheath material and high-voltage-resistant technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of endangering the safety of cable operation, affecting the normal detection of cables, and easy damage of cable laying, so as to increase the service life and improve the smoothness of the surface , The effect of improving scratch resistance

Inactive Publication Date: 2014-08-20
ANHUI ELECTRIC GRP SHARES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sheath material in high-voltage cables is generally made of materials with high insulation resistance. When multiple points are continuously grounded, dangerous voltages can be formed at the sheath position far away from the site, which will not only endanger the operation safety of the cable, but also cause damage to the cable. Le

Method used

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  • Weather-resistant high-voltage-resistant cable sheath material

Examples

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Effect test

Embodiment 1

[0013] In this embodiment, a weather-resistant and high-voltage resistant sheath material for cables includes: weighing 61 parts of metallocene polyethylene by weight, 20 parts of ethylene-vinyl acetate resin with an ethylene-vinyl acetate content of 18%, 8 parts of polymethyl methacrylate, 5 parts of composite environment-friendly heat stabilizer composed of 50wt% environment-friendly Ca / Zn composite stabilizer and 50wt% epoxy soybean oil, based on 73wt% microcapsules of composite environment-friendly heat stabilizer Red phosphorus, 2.05 parts of expanded graphite, 0.35 parts of polyethylene wax and 0.2 part of high-efficiency lubricant are placed in a low-speed kneader and stirred evenly; weigh metallocene polyethylene, ethylene-vinyl acetate resin and polymethacrylic acid Methyl ester is based on 30wt% phthalates, 5 parts of conductive metal powder, 18 parts of carbon fiber, 50wt% calcined clay based on polyethylene wax, 20 parts of talcum powder, and 0.75 parts of antioxida...

Embodiment 2

[0015] In this embodiment, a weather-resistant and high-voltage resistant sheath material for cables, including: weighing 64 parts of metallocene polyethylene by weight, 16 parts of ethylene-vinyl acetate resin with an ethylene-vinyl acetate content of 19%, 5.5 parts of polymethyl methacrylate, 7 parts of composite environment-friendly heat stabilizer composed of 42wt% environment-friendly Ca / Zn composite stabilizer and 58wt% epoxy soybean oil, taking composite environment-friendly heat stabilizer as benchmark 55wt% microcapsules Red phosphorus, 4.5 parts of expanded graphite, 0.25 part of polyethylene wax and 0.27 part of high-efficiency lubricant are placed in a low-speed kneader and stirred evenly; weigh metallocene polyethylene, ethylene-vinyl acetate resin and polymethacrylic acid Methyl ester is based on 18wt% phthalates, 10 parts of conductive metal powder, 26 parts of carbon fiber, 100wt% calcined clay based on polyethylene wax, 15 parts of talcum powder, and 1.15 parts...

Embodiment 3

[0017] In this embodiment, a weather-resistant and high-voltage resistant sheath material for cables, including: weighing 62 parts of metallocene polyethylene by weight, 18 parts of ethylene-vinyl acetate resin with an ethylene-vinyl acetate content of 18.55%, 6 parts of polymethyl methacrylate, 6 parts of composite environment-friendly heat stabilizer composed of 48wt% environment-friendly Ca / Zn composite stabilizer and 52wt% epoxy soybean oil, based on 67wt% microcapsules of composite environment-friendly heat stabilizer Red phosphorus, 3.5 parts of expanded graphite, 0.35 parts of polyethylene wax and 0.25 parts of high-efficiency lubricant are placed in a low-speed kneader and stirred evenly; weigh metallocene polyethylene, ethylene-vinyl acetate resin and polymethacrylic acid Methyl ester is based on 24 wt% phthalates, 5 parts of conductive metal powder, 25 parts of carbon fiber, 55 wt% of calcined clay based on polyethylene wax, 17 parts of talcum powder, and 0.75 parts o...

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Abstract

The invention discloses a weather-resistant high-voltage-resistant cable sheath material, and the preparation method comprises the following steps: putting metallocene polyethylene, ethylene-vinyl acetate resin, 5-8 parts of polymethyl methacrylate, a composite environmental-friendly heat stabilizer, micro encapsulated red phosphorus, expandable graphite, polyethylene wax and a super lubricant into a low speed kneader for mixing evenly; putting phthalate, conductive metal powder, carbon fiber, calcined clay, talcum powder and an antioxidant in the low speed kneader for mixing evenly with the obtained material, then putting the prepared material into a high speed kneader for heating for mixing evenly at a high speed, and cooling; sending the obtained material into a twin-screw granulator for extrusion granulating, and drying to obtain the high-voltage-resistant cable sheath material. The weather-resistant high-voltage-resistant cable sheath material is excellent in high-voltage-resistant performance, free of falling off, higher in hardness and good in thermal stability.

Description

technical field [0001] The invention relates to the technical field of sheath materials for high-voltage cables, in particular to a weather-resistant and high-voltage resistant sheath material for cables Background technique [0002] The sheath material in high-voltage cables is generally made of materials with high insulation resistance. When multiple points are continuously grounded, dangerous voltages can be formed at the sheath position far away from the site, which will not only endanger the operation safety of the cable, but also cause damage to the cable. Leading to electric shock for construction personnel, graphite is usually coated on the sheath layer for discharge at present, but it is easy to damage and fall off during cable laying, pollute the surrounding environment, seriously affect the normal detection during cable installation, and cause many problems to manufacturers and users. trouble. Contents of the invention [0003] The invention proposes a weather-...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L33/12C08K13/04C08K5/1515C08K3/02C08K3/04C08K5/12C08K7/06C08K3/08C08K3/34H01B7/17
CPCC08L23/06C08K2201/001C08L2201/08C08L2203/202C08L2205/025C08L2205/035H01B3/441H01B7/18H01B7/29
Inventor 赵建军童茜徐国峰
Owner ANHUI ELECTRIC GRP SHARES
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