In the aerospace sector, organic polyborosilazane has found applications in numerous critical components and systems due to its outstanding properties.

Rocket engines are the core components of space launches, and the inner walls of their combustion chambers are subjected to intense scouring and ablation from high-temperature and high-pressure combustion gases. The Key Laboratory of Space Manufacturing Technology at the Chinese Academy of Sciences has achieved an innovative breakthrough. By utilizing a ceramic 3D printer based on the area exposure stereolithography technique, they have successfully 3D-printed organic precursor polyborosilazane and sintered it into complex-shaped SiBCN ceramic parts. When applied to the inner walls of rocket engine combustion chambers, these parts can withstand temperatures up to 1500°C, effectively resisting high-temperature ablation. This significantly extends the service life of the engines and enhances the safety and reliability of rocket launches.

In terms of aircraft structural materials, the wings and fuselage of aircraft have extremely high requirements for strength, stiffness, and lightweight properties. Composite materials containing organic polyborosilazane have emerged as an ideal choice. For instance, during the development of a new type of aircraft, organic polyborosilazane was incorporated as a reinforcing phase into the composite materials. This not only ensured that the structural strength was sufficient to withstand various complex stresses during flight but also significantly reduced the weight of the wings and fuselage. Actual flight tests have demonstrated a substantial improvement in the aircraft's fuel efficiency and an extension of its range, fully showcasing the remarkable effectiveness of this material in enhancing aircraft performance.

Satellite equipment also benefits greatly from organic polyborosilazane. Satellites operating in space are exposed to harsh environments such as extreme temperatures and space radiation. The polysilazane-based composite material developed by Quanzhou Wanzhong Chemical Industry has a temperature resistance exceeding 1500°C and has been successfully applied to the protective coatings of satellite solar panels. In simulated space environment tests, after being subjected to a 1500°C oxyacetylene flame ablation for 30 seconds, the mass loss of this protective coating was only 0.8%, significantly outperforming traditional resin coatings. Additionally, after 100 thermal shock cycles (1200°C to room temperature), the coating showed no cracking, and its strength retention rate was over 90%. This provides stable protection for satellite solar panels, ensuring their normal operation in complex space environments and enhancing the stability and reliability of the satellite's energy supply.

Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150K.       
High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.