Silicone rubber insulation material applied to high voltage cable accessories in European series and preparation method for material

A medium and high voltage cable and silicone rubber insulation technology, which is applied in the direction of rubber insulators and organic insulators, can solve problems such as low electrical performance, odor of products, and reduced breakdown voltage strength of insulating rubber, and achieve low product defect rate. Effect
CN102585513AActive Publication Date: 2012-07-18深圳市罗庚电气有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
深圳市罗庚电气有限公司
Publication Date
2012-07-18

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Abstract

The invention belongs to the fields of special rubber technologies and medium and high voltage electrical equipment, is thorough improvement on the prior art, and in particular relates to a silicone rubber insulation material applied to high voltage cable accessories in European series and a preparation method for the material. The material comprises the following components in part by mass: 100 parts of crude silicone rubber, 5 to 25 parts of reinforcing agent, 80 to 130 parts of flame retardant, 0.1 to 0.8 part of internal release agent, 0.8 to 2 parts of masterbatch, 0.8 to 2 parts of anti-structuring control agent, 5 to 15 parts of zinc oxide, 1 to 2 parts of silane coupling agent, 1 to 5 parts of hydroxy silicone oil and 0.8 to 3 parts of vulcanizing agent. Compared with the conventional ethylene propylene diene monomer (EPDM) rubber, the material has the advantages that tracking resistance and electric corrosion loss can reach TMA4.5, and the material has lasting hydrophobicity and high dielectric constant, joint strength and wet electrical property, can be subjected to injection molding, avoids the phenomenon that an electric field is easily concentrated because EPDM is non-uniformly distributed, and is high in vulcanizing speed and efficiency, and cost is saved.
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Description

technical field

[0001] The invention belongs to the field of special rubber technology and medium and high voltage electrics, and is an improvement by introducing a new material to replace traditional ethylene-propylene rubber, and specifically relates to a silicone rubber insulating rubber material for European-style medium and high-voltage cable accessories and a preparation method thereof. technical background

[0002] In the electrical cable industry, all cable accessories that meet the DIN47636 standard are referred to as European cable accessories. The insulation material used in the cable accessories used in the original industry is ethylene-propylene-diene rubber (EPDM). But in use, it is found that silicone rubber is more resistant to high temperature, UV and oxidation, stronger hydrophobicity, arc resistance and better affinity to the human body.

[0003] The use of silicone rubber instead of traditional EPDM insulation materials is mainly aimed at the use of a ne...

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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