In the electronics and electrical sector, gas-phase silicone rubber has become a core material ensuring stable equipment operation, thanks to its exceptional insulation properties and high/low-temperature resistance. Its key advantage lies in the uniform dispersion of fumed silica nanoparticles, which elevate its volume resistivity to 1×10¹⁶ Ω·cm—far exceeding ordinary rubber materials—effectively blocking current leakage and preventing short circuits.

In high-voltage power equipment, gas-phase silicone rubber is widely used. For example, transformer bushing seals must endure voltages above 220 kV and temperature fluctuations from 50℃ to 100℃. Traditional rubber materials are prone to corona aging-induced insulation failure, whereas gas-phase silicone rubber, optimized with a vulcanization system and filler ratios, achieves a breakdown voltage exceeding 40 kV/mm. After 1,000 hours of aging at 100℃, its volume resistivity degradation rate remains below 10%, ensuring long-term safety. Additionally, its hydrophobicity (contact angle > 110°) prevents moisture penetration, avoiding humidity-related insulation decline, making it ideal for outdoor cable terminals and switchgear seals.

In consumer electronics, the flexibility and miniaturization adaptability of gas-phase silicone rubber are critical. Internal connectors in smartphones and wearables require stable insulation at 0.3 mm pitches. Gas-phase silicone rubber, via precision injection molding, can produce 0.1 mm-thick insulation sheets with a tensile strength of 8 MPa and a bending radius as small as 1 mm without cracking, meeting compact design demands. Its low dielectric constant (2.8–3.2) and low dielectric loss (tanδ < 0.005) also reduce signal transmission losses, enhancing signal integrity in 5G communication devices.

Notably, gas-phase silicone rubber innovates in new energy charging infrastructure. DC fast-charging station modules demand insulation stability across -40℃ to 85℃. By incorporating cold-resistant plasticizers and heat-resistant additives, gas-phase silicone rubber reduces its glass transition temperature (Tg) to -60℃ and maintains over 80% tensile strength after 5,000 hours of thermal aging at 85℃, significantly extending equipment lifespan. Its self-extinguishing property (UL94 V-0 rating) further prevents fire spread, making it a top choice for charging station safety design.

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