Application Status and Prospect of High Thermal Conductivity Pitch-based Carbon Fiber Composites in Spacecraft

With the development of the new generation of spacecraft towards the direction of super-large,micro-miniaturization and high-efficiency,the demand for lightweight,high-strength,high modulus and high thermal conductivity materials for spacecraft is increasingly urgent. Compared with traditional PAN-based carbon fiber,high thermal conductivity pitch-based carbon fiber has ultra-high thermal conductivity,higher tensile modulus and lower thermal expansion coefficient. High thermal conductivity pitch-based carbon fiber is an ideal material to realize the functional integration of load bearing,heat transfer and thermal dimensional stability. It has been widely used in the aerospace field and has shown great application prospects. This paper introduces the performance characteristics,development status and application status of high thermal conductivity pitch-based carbon fiber and its composites in spacecraft. The application status of high thermal conductivity pitch-based carbon fiber composites in spacecraft thermal management structure,thermal protection structure,high dimensional stability structure,multi-function structure and electronic equipment shell are reviewed. Finally,the development and application prospects of high thermal conductivity pitch-based carbon fiber composites are prospected. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.