A kind of semi-conductive rubber and its preparation method and application

A semi-conductive and rubber technology, which is applied in the field of semi-conductive rubber and its preparation, can solve the problems such as the reduction of the mechanical properties and electrical properties of the rubber material, and the inability to meet the use conditions of the rubber material, etc., and achieve the effect of excellent anti-aging performance
CN113372657BActive Publication Date: 2022-06-07长沙长缆电工绝缘材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
长沙长缆电工绝缘材料有限公司
Publication Date
2022-06-07

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Abstract

The invention provides a semiconductive rubber, a preparation method and application thereof. The semiconductive rubber of the present invention has a volume resistivity of ≤500Ω·cm and a Shore A hardness of ≤75, and the raw material for the semiconductive rubber contains superconductive carbon black. In order to obtain low hardness technical indicators, in formula design, the amount of reinforcing agent is usually reduced, such as reducing the amount of carbon black. However, the reduction of the amount of carbon black will not only reduce the mechanical properties and aging properties of the rubber, but also increase the volume resistivity of the rubber, thus failing to meet the performance requirements of semi-conductivity. To solve this problem, the present invention uses superconducting carbon black with large specific surface area and superconducting properties. Due to its large specific surface area, superconducting carbon black has good reinforcing effect and excellent electrical conductivity. Even if it is added in a small amount, it can make the mechanical and electrical properties of rubber meet the requirements.
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Description

technical field

[0001] The invention belongs to the technical field of cable accessories, and particularly relates to a semi-conductive rubber and a preparation method and application thereof. Background technique

[0002] Power cable accessories are products that connect cables with power transmission and distribution lines and related power distribution devices. They generally refer to the intermediate connections and terminal connections of various cables in cable lines, which together with cables form a power transmission network. Cable accessories are mainly based on the characteristics of the cable structure, which can not only restore the performance of the cable, but also ensure the extension of the cable length and the connection of the terminal. The reliability of high-voltage cable accessories can be judged from the aspects of electrical performance, sealing and moisture-proof performance, mechanical performance and process performance. Commonly used cable access...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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