High-voltage-resistant high hardness cable sheath material

A cable sheath, high hardness technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of affecting the normal detection of cables, endangering the safety of cable operation, and easy damage to cable laying, achieving good surface smoothness and increasing service life. , 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. 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

Method used

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  • High-voltage-resistant high hardness cable sheath material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0012] In this embodiment, a high-voltage-resistant high-hardness cable sheath material includes: weighing 45 parts of metallocene polyethylene, 21 parts of ethylene-vinyl acetate resin, 12 parts of aniline diphenyl ether resin, 6.5 parts Composite environment-friendly heat stabilizer, wherein the weight ratio of environment-friendly Ca / Zn composite stabilizer and epoxy soybean oil is 3.5:1.5, based on composite environment-friendly heat stabilizer 64wt% microencapsulated red phosphorus, 2 parts of expanded graphite, 0.4 1 part of polyethylene wax and 0.25 part of high-efficiency lubricant were placed in a low-speed kneader and stirred evenly to obtain material A; 25wt based on the total weight of metallocene polyethylene, ethylene-vinyl acetate resin and aniline diphenyl ether resin % phthalates, 4.5wt% graphite, 30wt% conductive metal powder based on graphite, 40wt% calcined clay based on polyethylene wax, equivalent to 45% magnesium methacrylate of composite environmental pr...

Embodiment 2

[0014] In this embodiment, a high-voltage-resistant high-hardness cable sheath material includes: weighing 51 parts of metallocene polyethylene, 20 parts of ethylene-vinyl acetate resin, 14 parts of aniline diphenyl ether resin, 7 parts Composite environment-friendly heat stabilizer, wherein the weight ratio of environment-friendly Ca / Zn composite stabilizer and epoxy soybean oil is 3.8:1, based on the composite environment-friendly heat stabilizer, 70wt% microencapsulated red phosphorus, 5 parts of expanded graphite, 0.35 1 part of polyethylene wax and 0.2 part of high-efficiency lubricant were placed in a low-speed kneader and stirred evenly to obtain material A; 45wt based on the total weight of metallocene polyethylene, ethylene-vinyl acetate resin and aniline diphenyl ether resin was weighed % phthalates, 6.5wt% graphite, 15wt% conductive metal powder based on graphite, 85wt% calcined clay based on polyethylene wax, equivalent to 27% magnesium methacrylate of composite env...

Embodiment 3

[0016] In this embodiment, a high-voltage-resistant high-hardness cable sheath material includes: weighing 48 parts of metallocene polyethylene, 18 parts of ethylene-vinyl acetate resin, 16 parts of aniline diphenyl ether resin, 5 parts Composite environment-friendly heat stabilizer, wherein the weight ratio of environment-friendly Ca / Zn composite stabilizer and epoxy soybean oil is 3.65:1.25, based on composite environment-friendly heat stabilizer 60wt% microencapsulated red phosphorus, 3.5 parts of expanded graphite, 0.2 1 part of polyethylene wax and 0.27 part of high-efficiency lubricant were placed in a low-speed kneader and stirred evenly to obtain material A; the total weight of metallocene polyethylene, ethylene-vinyl acetate resin and aniline diphenyl ether resin was weighed to 31wt % phthalates, 2.5wt% graphite, 20wt% conductive metal powder based on graphite, 100wt% calcined clay based on polyethylene wax, equivalent to 32% magnesium methacrylate of composite environ...

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Abstract

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

Description

technical field [0001] The invention relates to the technical field of sheath materials for high-voltage cables, in particular to a high-voltage resistant and high-hardness cable sheath material 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 provides a high-voltage-resi...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L71/12H01B3/44H01B7/18C08K13/06C08K9/10C08K3/02C08K5/1515C08K3/04C08K5/12C08K3/08C08K3/34C08K5/098
CPCC08L23/06C08K2201/001C08L2201/08C08L2203/202C08L2205/025C08L2205/035H01B7/18
Inventor 赵建军童茜徐国峰
Owner ANHUI ELECTRIC GRP SHARES
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