Method for preparing special silicon rubber for high-voltage wire of new energy vehicle by platinum catalyst

CN122234612APending Publication Date: 2026-06-19DONGGUAN LONGSUN MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGGUAN LONGSUN MATERIAL TECHNOLOGY CO LTD
Filing Date
2026-04-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing silicone rubber materials are insufficient in terms of mechanical strength, making it difficult to meet the tensile, tear, and abrasion resistance requirements of high-voltage cables for new energy vehicles under complex working conditions.

Method used

Special silicone rubber for high-voltage lines in new energy vehicles was prepared using a platinum catalyst. By designing a crosslinking agent with hydroxyl groups, benzene rings, and multiple double bonds in its structure, the crosslinking density of the silicone rubber was increased. Rigid stilbene crosslinking sites were introduced, and π-π conjugation was generated with the modified graphene surface to enhance mechanical properties.

Benefits of technology

It significantly improves the tensile strength and elongation at break of silicone rubber, enhances its mechanical properties, and enables it to exhibit better mechanical reinforcement and flexibility under complex working conditions.

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Abstract

This invention relates to a method for preparing special silicone rubber for high-voltage lines in new energy vehicles using a platinum catalyst, belonging to the field of silicone rubber technology. The invention designs a crosslinking agent with hydroxyl groups, benzene ring structures, and multiple double bonds in its structure. During hydrosilylation curing, the multiple double bonds in the crosslinking agent can participate in the hydrosilylation curing, thereby increasing the crosslinking density of the silicone rubber and improving its mechanical strength. Furthermore, it introduces rigid stilbene crosslinking sites and hydroxyl structures with flexible spacer segments into the silicone rubber molecular chain, simultaneously improving the tensile properties, elongation at break, and toughness of the silicone rubber after curing.
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