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A kind of electrical tracking resistance cable material and preparation method thereof

A cable material and electric tracking resistance technology, which is applied in the direction of circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of material tracking and damage, achieve high resistance to electric tracking performance, improve interface bonding strength, Effect of improving anti-aging performance

Active Publication Date: 2022-06-24
ZHEJIANG WANMA MACROMOLECULE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the sheath material, although the tracking resistance agent is used to improve the tracking resistance of the sheath material, and the anti-oxidant is used to improve the UV resistance of the sheath material, but the antioxidant is a chain-terminated antioxidant. It is difficult to prevent the ultraviolet rays generated by corona discharge from causing electric tracking of polyethylene sheaths. The reason is that in the process of tracking and tracking, there are mainly three discharge forms, among which, the spectrum of corona discharge is mainly concentrated in the ultraviolet region. The energy generated by ultraviolet rays is relatively large. According to wien quantification, when a black body radiates ultraviolet rays with a wavelength of 340nm, its surface temperature can reach 14880F, which is enough to carbonize the material, which in turn leads to electrical tracking damage of the material

Method used

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  • A kind of electrical tracking resistance cable material and preparation method thereof
  • A kind of electrical tracking resistance cable material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0039] A tracking-resistant cable material is characterized in that it comprises A component and B component with a mass ratio of 92:8.

[0040] Component A includes the following raw materials by mass percentage: 75% of silane cross-linked polyethylene, 24.7% of magnesium hydroxide, 0.3% of silane coupling agent KH-550, the total amount is 100%;

[0041] Component B includes the following raw materials by mass percentage: 50% of ultraviolet absorber UV-531, 49% of polyethylene, 1% of dibutyltin dilaurate, and the total amount is 100%.

[0042] A preparation method of the tracking-resistant cable material, comprising the following steps:

[0043] (1) silane cross-linked polyethylene, magnesium hydroxide, and silane coupling agent are weighed and mixed in proportion, and then added into a twin-screw extruder for kneading and extrusion to obtain component A;

[0044] (2) weighing and mixing the ultraviolet absorber, polyethylene and cross-linking catalyst according to the propo...

Embodiment 2

[0047] A tracking-resistant cable material is characterized in that it comprises A component and B component with a mass ratio of 92:8.

[0048] Component A includes the following raw materials by mass percentage: 75% of silane cross-linked polyethylene, 0.5% of 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid, 0.7% of 4-hydroxy-3,5 - dimethylbenzoic acid, magnesium hydroxide 28.8%, total 100%;

[0049] Component B includes the following raw materials by mass percentage: 50% of ultraviolet absorber UV-531, 49% of polyethylene, 1% of dibutyltin dilaurate, and the total amount is 100%.

[0050] A preparation method of the tracking-resistant cable material, comprising the following steps:

[0051] (1) silane cross-linked polyethylene, magnesium hydroxide, and silane coupling agent are weighed and mixed in proportion, and then added into a twin-screw extruder for kneading and extrusion to obtain component A;

[0052] (2) weighing and mixing the ultraviolet absorber, polyethyl...

Embodiment 3

[0055] A tracking-resistant cable material is characterized in that it comprises A component and B component with a mass ratio of 92:8.

[0056] Component A includes the following raw materials by mass percentage: 75% of silane cross-linked polyethylene, 30% of hindered phenol composite magnesium hydroxide, and the total amount is 100%;

[0057] Component B includes the following raw materials by mass percentage: 50% of ultraviolet absorber UV-531, 49% of polyethylene, 1% of dibutyltin dilaurate, and the total amount is 100%.

[0058] The preparation method of described hindered phenol composite magnesium hydroxide is as follows:

[0059] (1) aminosilane coupling agent KH-550 is added in ethanol aqueous solution (wherein, the volume ratio of ethanol and water is 10:1) with the mass volume ratio of 1g:5mL, after mixing, make coupling agent solution; Put the magnesium hydroxide into the high-speed mixer, slowly inject the coupling agent solution under stirring, and the mass rat...

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Abstract

The invention relates to the field of cable materials, and discloses an electric tracking-resistant cable material and a preparation method thereof. The tracking-resistant cable material includes A component and B component; wherein, A component includes the following raw materials in mass percentage: 70-80% of silane cross-linked polyethylene, 20-30% of magnesium hydroxide, 0% of silane coupling agent ~0.5%, the total amount is 100%; B component includes the following raw materials in mass percentage: ultraviolet absorber 30~50%, polyethylene 49~69%, crosslinking catalyst 1~2%, the total amount is 100%. The cable material of the invention can prevent electric tracking damage under the action of ultraviolet rays and heat by adding magnesium hydroxide and ultraviolet absorbers, and has higher electric tracking resistance performance.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a tracking-resistant cable material and a preparation method thereof. Background technique [0002] Aerial cables are usually used for high-current and high-voltage power transmission, and are erected in open outdoor environments. This requires the application of overhead cables to have stable and long-term operation. However, the surface of power equipment is prone to pollution flashover under humid conditions (natural rain, snow, frost, etc.). When pollution flashover occurs in equipment, it is easy to cause large-scale power outages, and the accompanying strong arc also causes damage to electrical equipment, prolongs the outage time, and seriously threatens the safe and stable operation of the power system. Therefore, overhead cable materials need to be able to adapt to outdoor sunlight and rain. At the same time, the cable will generate high temperature when transmitting high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K9/04C08K9/06C08K3/22C08K5/13C08K13/06H01B3/44
CPCC08L23/06H01B3/441C08K2201/014C08K2003/2224C08L2201/08C08L2203/202C08L2205/025C08K9/04C08K9/06C08K9/08C08K3/22C08K5/13C08K13/06
Inventor 洪向明关江伟于西王海涛黄远远吕欣章剑平
Owner ZHEJIANG WANMA MACROMOLECULE MATERIAL
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