Extra-high voltage rod-shaped composite insulator

A composite insulator, UHV technology, applied in the direction of organic insulators, insulators, rubber insulators, etc., can solve the problems of loss of strength of insulators, excessive expansion coefficient of harmful stress, poor insulation effect, etc., to improve strength and dispersion performance, improve Solvent resistance and surface toughness, the effect of improving mechanical strength and insulating properties
CN112694756APending Publication Date: 2021-04-23醴陵市东方电瓷电器有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
醴陵市东方电瓷电器有限公司
Publication Date
2021-04-23

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Abstract

The invention provides an extra-high voltage rod-shaped composite insulator. The composite insulator comprises the following components in parts by weight: 30-40 parts of vinyl silicone rubber, 20-40 parts of polyketone resin, 15-20 parts of polycarbonate, 5-12 parts of zinc dimethyldithiocarbamate, 10-15 parts of lauryl acrylate, 10-15 parts of an ethylene-vinyl acetate copolymer, 4-6 parts of microcrystalline wax, 1-1.3 parts of polyoxyethylene polyoxypropylene pentaerythritol ether, 2-4 parts of a silane coupling agent, 0.5-1 part of a ketoxime type cross-linking agent, 20-25 parts of three-layer core-shell structure zirconium oxide insulating filler, 5-10 parts of basalt fibers, 0.5-1 part of a plasticizer, 5-8 parts of aluminum hydroxide, 2-5 parts of white carbon black and 1-3 parts of silica powder. According to the invention, a polydopamine bonding layer is introduced between the zirconium oxide core body and the silicon nitride shell layer, the coating density of the silicon nitride shell layer is improved, the insulating property is improved, the advantages of low impurity content, high purity, low conductivity and good insulating property are achieved, the fluidity is good in the preparation process, and the mechanical strength and the insulating property of the insulator can be effectively filled and improved.
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Description

technical field

[0001] The invention relates to the technical field of insulating materials, in particular to an ultra-high voltage rod-shaped composite insulator. Background technique

[0002] With the widespread use of electricity by humans, the application of electricity is becoming more and more extensive, and the requirements for insulators required in the process of electricity transmission are becoming higher and stricter.

[0003] As a special insulation control, insulators can be installed between conductors with different potentials or between conductors and grounding components to withstand voltage and mechanical stress. There are many types of insulators in different shapes. Although the structure and shape of different types of insulators are quite different, they are mainly composed of two parts: insulating parts and connecting fittings.

[0004] Insulators were mostly used for utility poles in the early years, and gradually developed in high-voltage wire con...

Claims

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