High-voltage incoming wire sheath material with excellent insulation stability

A high-voltage incoming line and stable technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problem of water-repellent performance attenuation of cable sheaths, achieve good insulation stability, good hydrophobicity, and avoid by-products The effect produced

Pending Publication Date: 2019-05-03
ANHUI EFARAD ELECTRIC POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcoming of rapid attenuation of the hydrophobicity of the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-voltage incoming line sheath material with excellent insulation stability, which is made of the raw materials with the following weight ratio: the insulating material is made of the raw materials with the following weight ratio: 7 parts of modified silicone rubber, 25 parts of medium density polyethylene resin 12 parts of polyvinylidene chloride, 2.1 parts of precipitated silica, 13 parts of ceramic powder, 1.2 parts of magnesium oxide, 0.6 parts of vulcanization accelerator, 1.5 parts of anti-aging agent RD, 3.5 parts of dicumyl peroxide , 3.2 parts of rare earth stabilizer, 2.1 parts of 2,6-di-tert-butyl-4-methylphenol, 5.0 parts of dibutyl maleate and 14 parts of reaction auxiliary agent, the reaction auxiliary agent consists of the following weight ratio Raw materials: 2.1 parts of 1,6-hexamethylene diisocyanate, 1.2 parts of tripropylene glycol diacrylate, 3 parts of accelerator DM, 0.8 parts of ferric oxide, 3 parts of polytetrafluoroethylene, 0.5 parts of c...

Embodiment 2

[0020] A high-voltage incoming line sheath material with excellent insulation stability, which is made of the raw materials in the following weight ratio: the insulating material is made of the raw materials in the following weight ratio: 10 parts of modified silicone rubber, 30 parts of medium density polyethylene resin 16 parts of polyvinylidene chloride, 2.3 parts of precipitated silica, 16 parts of ceramic powder, 6 parts of magnesium oxide, 0.8 parts of vulcanization accelerator, 1.8 parts of antioxidant RD, 4.5 parts of dicumyl peroxide 4.5 parts, 4.5 parts of rare earth stabilizer, 3.2 parts of 2,6-di-tert-butyl-4-methylphenol, 7.0 parts of dibutyl maleate and 16 parts of reaction auxiliary agent. The reaction auxiliary agent consists of the following weight ratio Made of raw materials: 3.3 parts of 1,6-hexamethylene diisocyanate, 2.6 parts of tripropylene glycol diacrylate, 4 parts of accelerator DM, 1.7 parts of ferric oxide, 4 parts of polytetrafluoroethylene, 1.2 par...

Embodiment 3

[0022] A high-voltage incoming line sheath material with excellent insulation stability, made of raw materials with the following weight ratio: the insulating material is made of raw materials with the following weight ratio: 8.5 parts of modified silicone rubber, 27.5 parts of medium density polyethylene resin 14 parts of polyvinylidene chloride, 2.2 parts of precipitated silica, 14.5 parts of ceramic powder, 1.4 parts of magnesium oxide, 0.7 parts of vulcanization accelerator, 1.65 parts of antioxidant RD, 4 parts of dicumyl peroxide , 3.55 parts of rare earth stabilizer, 2.65 parts of 2,6-di-tert-butyl-4-methylphenol, 6 parts of dibutyl maleate and 15 parts of reaction auxiliary agent, the reaction auxiliary agent consists of the following weight ratio Raw materials: 2.7 parts of 1,6-hexamethylene diisocyanate, 1.9 parts of tripropylene glycol diacrylate, 3.5 parts of accelerator DM, 1.25 parts of ferric oxide, 3.5 parts of polytetrafluoroethylene, 0.85 parts of calcium stea...

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PUM

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Abstract

The invention discloses a high-voltage incoming wire sheath material with excellent insulation stability, which comprises the following raw materials in weight proportion: 7-10 parts of modified silicone rubber, 25-30 parts of medium density polyethylene resin, 12-16 parts of polyvinylidene chloride, 2.1-2.3 parts of precipitated white carbon black, 13-16 parts of ceramic powder, 1.2-1.6 part of magnesium oxide, 0.6-0.8 part of vulcanization accelerator, 1.5-1.8 part of antioxidant RD, 3.5-4.5 parts of dicumyl peroxide, 3.2-4.5 parts of rare earth stabilizer, 2.1-3.2 parts of 2,6-di-tert-butyl-4-methylphenol, 5.0-7.0 parts of dibutyl maleate and 14-16 parts of reaction adjuvant. The invention combines the advantages of modified silicone rubber, medium density polyethylene, polyvinylidene chloride and other raw materials and makes it have good processability and mechanical properties. By using the physical properties of modified silicone rubber, LSR adopts platinum catalyst to avoid by-products, and LSR has good hydrophobicity and stable hydrophobic migration properties to improve its insulation performance.

Description

technical field [0001] The invention relates to the technical field of silicone rubber polymer materials, in particular to a high-voltage incoming line sheath material with excellent insulation stability. Background technique [0002] With the development of the economy, the places where cables need to be used have become diversified, and there are more stringent and diverse requirements for the performance indicators of cable sheath materials, such as insulation, tensile strength, service temperature, flame retardant performance and other indicators There are strict requirements, and the continuous improvement of the performance of the sheath material is an urgent need for economic and social development. [0003] Traditional sheath materials are limited by materials. For cables buried below the ground, due to long-term exposure to humid environments, the hydrophobic performance of the cable surface sheath decays quickly, and the hydrophobic performance of the cable sheath ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L83/04C08L27/08C08K3/36C08K3/22H01B3/44
Inventor 戴文忠戴章戴冕吴钰娟戴超戴玉
Owner ANHUI EFARAD ELECTRIC POWER TECH
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