What makes recycling rockets difficult? He Xiaodong, an academician of the Chinese Academy of Engineering, pointed out that the key lies in ensuring that the rocket is not burned out upon return and can be reused, which places extremely high demands on the materials. In experiments, thermal insulation materials were removed from a furnace heated to over 1,000 degrees Celsius without deformation and could be picked up by hand. Academician He Xiaodong explained that this indicates the material has dissipated heat and possesses excellent thermal insulation properties. Currently, China ranks among the world's first tier in the field of thermal insulation materials.
