吉林大学张云鹤教授：低空经济与橡塑行业的融合发展

Core Viewpoint - The year 2024 is recognized as the "Year of China's Low Altitude Economy," indicating the rapid rise of low altitude economy as a strategic emerging industry. Electric Vertical Takeoff and Landing (eVTOL) aircraft, as the main low altitude flying vehicles, require advanced materials to enhance performance and promote application [2]. Group 1: Low Altitude Economy and Materials - eVTOL aircraft predominantly utilize thermoplastic composite materials, with over 90% being carbon fiber composites, which are crucial for key components such as fuselage, wings, and propellers, accounting for 75-80% of the total material used [2]. - Carbon fiber composites exhibit tensile strength over nine times greater and elastic modulus four times greater than traditional materials like steel, aluminum alloys, and titanium alloys at the same weight [2]. - Glass fiber reinforced thermoplastic composites are used in components requiring excellent wave transmission performance, such as fuselage and radar covers [2]. - Aramid fiber reinforced thermoplastic composites are particularly suitable for load-bearing structures with excellent wave transmission performance [2]. Group 2: PEEK Material and Applications - PEEK is highlighted as a star material in the low altitude economy, offering lower density and a combination of rigidity and toughness, making it an excellent alternative to metals for lightweight solutions [3]. - Carbon fiber reinforced PEEK composites show significant performance improvements, with tensile strength increasing at least twofold at room temperature and tripling at 150°C compared to unreinforced PEEK [3]. - The research team led by Professor Zhang Yunhe from Jilin University has a strong background in special engineering plastics, particularly PEEK, which has shown great potential in emerging industries such as drones, new energy vehicles, and biomedical applications [3]. Group 3: Upcoming Events and Industry Insights - The 2025 Polymer Industry Annual Conference will be held from September 10-12 in Hefei, focusing on the integration of low altitude economy and polymer industries, inviting various stakeholders to explore new opportunities in materials and technologies [8][9]. - The conference will feature discussions on the development of high-performance polymer materials and their applications in low altitude economy and aerospace sectors [25][27].