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为火箭披上“一体化护甲”——记上海市科技进步奖特等奖新一代运载火箭表面特种防护涂层技术与应用
Zhong Guo Hua Gong Bao· 2025-09-26 02:58
Core Insights - The project "New Generation Launch Vehicle Surface Special Protective Coating Technology and Application" led by Professor Zhu Xinyuan from Shanghai Jiao Tong University has won the Shanghai Science and Technology Progress Award Special Prize, marking a significant breakthrough in aerospace thermal protection materials [1] - The innovative "hyperbranched polymer coating integrated protection" approach replaces traditional thermal insulation tile splicing techniques, addressing issues of low reliability and long manufacturing cycles in previous protective technologies [1][2] Group 1 - The new rocket technology has demonstrated high reliability and efficiency, with no instances of debris shedding during over 20 recent launch missions, supporting China's strategic need for high-frequency rocket launches [2] - The new generation of rockets faces extreme temperature challenges, with the satellite fairing needing to withstand over 500°C during atmospheric entry, while also dealing with ultra-low temperatures of -183°C from liquid oxygen fuel [2][3] Group 2 - The research team has integrated cutting-edge polymer synthesis with engineering needs, forming a collaborative team with key aerospace institutions to create a complete innovation chain from basic research to engineering application [3] - The team proposed a disruptive concept of a one-piece protective coating that eliminates seam risks and significantly enhances reliability while shortening production cycles [3][4] Group 3 - The new coating technology requires three essential capabilities: strong adhesion, extreme temperature resistance, and good sprayability, achieved by combining hyperbranched polymers with inorganic functional fillers [4] - The team has successfully tackled four core technologies, including controlled preparation of hyperbranched polymers and precise robotic spraying, enabling scalable production [4] - This high-performance polymer technology has been applied to various launch vehicles, notably in the Chang Zheng 6A solid rocket launch mission, and has expanded into civilian applications, breaking foreign monopolies in high-end industrial coatings [4]