Hydroxy phenyl silicone rubber has recently made significant technological breakthroughs in the fields of specialty sealing and high-performance bonding materials. By combining active hydroxyl functional groups with the extreme environment resistance of phenyl silicone rubber, this material has successfully addressed industry challenges in sealing and bonding under extreme temperatures and radiation, providing innovative material solutions for aerospace, nuclear energy equipment, and the new energy sector.

Research shows that while maintaining the excellent properties of phenyl silicone rubber (temperature resistance from -100℃ to 250℃, radiation resistance of 1×10⁷ Gy), the active hydroxyl groups at its molecular terminals endow the material with exceptional reactivity. It achieves tensile strength of 6.5-8.5 MPa and elongation at break exceeding 350%, retaining over 80% of its mechanical properties after 1,000 hours of aging at 200℃. Its unique chemical structure enables excellent bonding performance to metals, ceramics, and composite materials, with shear strength reaching 5-8 MPa.

In the aerospace sector, as a base polymer for high-performance RTV sealants, the material has been successfully applied in critical areas such as spacecraft window sealing and payload module bonding. Measurement data indicates that components sealed with this material maintain stable sealing performance under combined environments of temperature cycling from -110℃ to 180℃ and vacuum UV radiation, with performance degradation below 12% after 5,000 hours of accelerated aging. In the nuclear power plant equipment field, its exceptional radiation resistance and high-temperature steam resistance make it a key material for nuclear-grade valve seals and instrument penetration seals.

With the advancement of deep space exploration and nuclear energy technologies, higher demands are placed on material reliability under extreme multi-factor coupled environments. Through molecular structure design and filler system optimization, hydroxy phenyl silicone rubber continues to enhance its comprehensive performance in areas such as atomic oxygen resistance, space debris impact resistance, and chemical media erosion resistance while maintaining excellent basic properties. Industry experts note that this material's innovative breakthrough not only represents progress in specialty rubber material technology but also provides crucial material support for China's future major scientific and engineering projects. It is expected to play a significant role in cutting-edge fields such as space station construction and nuclear fusion devices.