Hydroxy phenyl silicone rubber has recently achieved significant technological advancements in the field of specialty sealing materials. By innovatively combining active hydroxyl functional groups with the extreme environment resistance of phenyl silicone rubber, this material has successfully addressed long-standing reliability challenges in sealing and bonding under extreme temperatures, intense radiation, and complex media environments, providing critical material support for major national projects in aerospace, nuclear energy equipment, and new energy.

Research shows that while inheriting the wide temperature range (-100℃ to 250℃) and high-dose radiation resistance (1×10⁷ Gy) of phenyl silicone rubber, the active hydroxyl groups at the molecular terminals of hydroxy phenyl silicone rubber significantly enhance the material's interfacial reactivity and bonding strength. Experimental data indicates a tensile strength of 6.5-8.5 MPa and elongation at break exceeding 350%, with performance retention still above 80% after 1,000 hours of thermal aging at 200℃. The material demonstrates exceptional bonding performance to substrates such as metals, ceramics, and composites, achieving shear strength of 5-8 MPa, far surpassing traditional sealing materials.

In the aerospace sector, as a base polymer for high-performance RTV sealants, the material has been successfully applied in critical components including dynamic seals for next-generation spacecraft windows and instrument module bonding for deep space probes. On-orbit data confirms that related sealing components maintain complete sealing functionality with performance degradation below 10% after long-term exposure to the space environment (vacuum, UV, atomic oxygen, and alternating temperatures of ±150℃). In the nuclear energy equipment field, its outstanding radiation resistance and tolerance to high-temperature, high-pressure steam make it an important candidate material for seals in advanced nuclear reactors.

With the advancement of frontier technologies such as deep space exploration and fusion energy, nearly极限 demands are being placed on material longevity and reliability under extreme multi-physical-field coupled environments. Leveraging its designable molecular structure, hydroxy phenyl silicone rubber is continuously enhancing its resistance to space environment erosion, high-speed particle impact, and stability in special media through technologies such as nano-reinforcement, functional filler compounding, and surface modification. Industry experts remark that the breakthrough of this material signifies China's transition from following and imitating to independent innovation in the field of high-performance specialty elastomers. It will provide an indispensable "material cornerstone" for subsequent national major scientific and technological infrastructure and deep space exploration missions.