The successful development of fluorosilicone rubber insulators for extreme environments has contributed to the safe upgrade of ultra-high voltage transmission

1.A university team has overcome the bottleneck of materials for power equipment
In response to the extreme environmental challenges faced by China's ultra-high voltage transmission lines, a university research team has successfully developed a new type of fluorosilicone rubber composite insulator. This product, through optimizing the material ratio and structural design, can maintain stable dielectric strength even in extremely cold conditions of -50 ℃. Its breakdown voltage is 20% higher than that of traditional silicone rubber, and the ice adhesion rate is 40% lower, significantly enhancing the anti-ice flashover capability of transmission lines.

2. Material innovation breaks through the traditional performance boundaries
The R&D team innovatively combined fluorosilicone rubber with polydimethylsiloxane (PDMS) compounding technology. By introducing special fillers to enhance the interfacial bonding force, the mechanical property fluctuation of the material within a wide temperature range of -60 ℃ to 150℃ was less than 5%. Wind tunnel simulation experiments show that the ice lightning voltage threshold of the new insulator reaches 1.8 times that of the traditional design, and the ice layer stripping speed is increased by 40%, effectively solving the reliability problem of power transmission equipment in high-cold areas.

3. The construction of new energy sources has given rise to broad application prospects
With the advancement of China's "West-to-East Power Transmission" and "Desert, Land and wasteland" new energy base construction, the demand for power equipment in extreme environments has been continuously increasing. The new type of fluorosilicone rubber insulator has reached a pilot cooperation with a power research institution and is planned to be applied to the Sichuan-Tibet power Grid interconnection project in 2026. According to industry predictions, by 2030, the market size of this product in the new energy power transmission channels will exceed 800 million yuan, becoming a new growth point in the application field of fluorosilicone rubber.

4. Technological transformation and industrial upgrading go hand in hand
This research achievement not only fills the technical gap in the application of high-end composite insulators in extremely cold regions in China, but also promotes the localization process of fluorosilicone rubber materials. The team leader stated that the next step will be to collaborate with key laboratories of universities to develop self-sensing insulators and integrate intelligent sensors to achieve real-time monitoring of insulation status. This model of integrating industry, academia and research provides a demonstration sample for the application of fluorosilicone rubber in emerging fields such as smart grids and industrial Internet of Things.