Silane cross-linked polyethylene insulating material with rated voltage 1kv and below

A polyethylene insulating material and silane cross-linking technology, which is applied in the direction of insulators, organic insulators, plastic/resin/wax insulators, etc., can solve problems such as limitations, and achieve the effects of improving uniformity, easy large-scale production, and tight combination

Active Publication Date: 2016-03-02
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its biggest disadvantage is the existence of dendrite breakdown, which limits its use at higher voltages

Method used

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  • Silane cross-linked polyethylene insulating material with rated voltage 1kv and below
  • Silane cross-linked polyethylene insulating material with rated voltage 1kv and below
  • Silane cross-linked polyethylene insulating material with rated voltage 1kv and below

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A silane cross-linked polyethylene insulating material with a rated voltage of 1kV or less, characterized in that the mass percentage of its raw materials is:

[0061]

[0062] The auxiliary agent is SAG compatibilizer, purchased from Nantong Rizhisheng Company.

[0063] The color masterbatch is a commercially available product, purchased from Shanghai Shengxia Chemical Co., Ltd.

[0064] The low-density polyethylene and silane cross-linked polyethylene are commercially available products.

[0065] The preparation method of described modified polyester, its concrete steps are:

[0066] (1) Disperse inorganic particles under the condition of methanol as a solvent, then add aminopropyltriethoxysilane under alkaline conditions, perform centrifugation after the reaction, and vacuum dry the solid to prepare surface functionalized inorganic particles;

[0067] The concentration of the inorganic particles in the alcohol solution is 5-35kg / m 3 , the pH of the system is co...

Embodiment 2

[0087] A silane cross-linked polyethylene insulating material with a rated voltage of 1kV or less, characterized in that the mass percentage of its raw materials is:

[0088]

[0089] The preparation method of described modified polyester, its concrete steps are:

[0090] (1) Disperse inorganic particles under the condition of methanol as a solvent, then add aminopropyltriethoxysilane under alkaline conditions, perform centrifugation after the reaction, and vacuum dry the solid to prepare surface functionalized inorganic particles;

[0091] The concentration of the inorganic particles in the alcohol solution is 5-35kg / m 3 , the pH of the system is controlled at 8.5-9.5, the reaction temperature is 60-75°C, and the reaction time is 150-240min;

[0092] The inorganic particles are nano-indium tin oxide, nano-indium antimony oxide and nano-titanium nitride particles, the mass ratio of the three is 1:1:2, the average particle size is 10-50nm, and ultrasonic dispersion is used ...

Embodiment 3

[0110] A silane cross-linked polyethylene insulating material with a rated voltage of 1kV or less, characterized in that the mass percentage of its raw materials is:

[0111]

[0112]

[0113] The preparation method of described modified polyester, its concrete steps are:

[0114] (1) Disperse inorganic particles under the condition of methanol as a solvent, then add aminopropyltriethoxysilane under alkaline conditions, perform centrifugation after the reaction, and vacuum dry the solid to prepare surface functionalized inorganic particles;

[0115] The concentration of the inorganic particles in the alcohol solution is 5-35kg / m 3 , the pH of the system is controlled at 8.5-9.5, the reaction temperature is 60-75°C, and the reaction time is 150-240min;

[0116] The inorganic particles are nano-indium tin oxide, nano-indium antimony oxide and nano-titanium nitride particles, the mass ratio of the three is 1:1:2, the average particle size is 10-50nm, and ultrasonic dispersio...

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Abstract

The invention relates to a silane cross-linked polyethylene insulating material having rated voltage equal to or below 1kV. The insulating material is characterized by being prepared from the following raw materials in percentage by mass: 1-5 percent of modified polyester, 0.1-0.5 percent of an additive, 0.1-1 percent of color master batch, 20-60 percent of low-density polyethylene and the balance of modified silane cross-linked polyethylene. The silane cross-linked polyethylene insulating material disclosed by the invention is simple in a technological process and easy for large-scale production.

Description

【Technical field】 [0001] The invention relates to the technical field of power materials, in particular to a silane cross-linked polyethylene insulating material with a rated voltage of 1kV or less. 【Background technique】 [0002] The insulation layer of plastic insulated power cables is plastic, commonly used plastics are polyvinyl chloride, polyethylene, and cross-linked polyethylene. The plastic cable has simple structure, convenient manufacturing and processing, light weight, convenient laying and installation, and is not limited by laying drop. Therefore, it is widely used as medium and low voltage cables, and has a tendency to replace viscous impregnated oil-paper cables. Its biggest disadvantage is the existence of dendrite breakdown, which limits its use at higher voltages. [0003] The continuous and rapid growth of China's economy has provided a huge market space for cable products. The strong temptation of the Chinese market has made the world focus on the Chine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L67/02C08L23/12C08L53/02H01B3/44C08K13/06C08K9/06C08K9/02C08K3/22C08K3/28C08K3/04C08G63/20C08G63/78C08J3/22
CPCC08K2201/011C08K2201/014C08L23/06C08L2203/202C08L2205/025C08L2205/035C08L2207/066H01B3/441C08L67/02C08L25/12C08K13/06C08K9/06C08K9/02C08K3/22C08K3/28C08K3/04C08L23/12C08L53/02C08K5/02
Inventor 石江华王颖韬沈太英
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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