Hydroxy phenyl silicone rubber has recently made significant progress in the fields of specialty sealing and high-performance bonding materials. Through synergistic molecular design that integrates active hydroxyl groups into phenyl silicone rubber, this material successfully combines excellent low-temperature resistance and radiation resistance with significantly enhanced interfacial bonding strength. It provides an innovative solution for extreme environment sealing requirements in the aerospace, nuclear energy equipment, and high-end electronics sectors.

Research data shows that while maintaining the inherent wide temperature range performance (-100°C to 250°C) and high radiation resistance (≥1×10⁷ Gy) of phenyl silicone rubber, hydroxy phenyl silicone rubber achieves a tensile strength of 6.5-8.5 MPa and an elongation at break exceeding 350%. By leveraging the active hydroxyl groups at its molecular terminals, the material exhibits significantly improved adhesion to metals, ceramics, and composite materials, with shear strength reaching 5-8 MPa. After 1,000 hours of aging at 200°C, it retains over 85% of its overall performance.

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 instrument module bonding. Actual measurement data indicates that related seals exhibit minimal performance degradation after years of orbital operation. In the nuclear energy equipment field, its exceptional resistance to radiation and high-temperature steam makes it a key material for nuclear power plant instrument seals and containment penetration seals.

With the advancement of deep space exploration and advanced nuclear energy technologies, higher demands are being placed on the long-term reliability of materials under the combined effects of multiple extreme environments. Through molecular structure optimization and composite filler technology, new-generation hydroxy phenyl silicone rubber has also achieved significant improvements in properties crucial for space environment adaptation, such as resistance to atomic oxygen erosion and micro-meteoroid impact, while maintaining its core advantages. Industry experts note that the continuous innovation of this material provides a solid foundation for ensuring the long-term stable operation of critical components in major national scientific and engineering projects, with promising market application prospects.