In recent years, with the rapid development of new high-speed space vehicles, there is an increasingly urgent demand for materials that can withstand high temperatures, be lightweight, and insulate with high efficiency. In this context, aerogel has attracted much attention as a lightweight nano-solid material with a wide range of application prospects.
However, there are some problems in the preparation process of traditional carbon aerogels, such as high cost and long preparation cycle, which limit the development of their industrial application. In order to solve these problems, researchers have begun to explore new preparation methods and material options.
Commercial phenolic resins have attracted much attention as potential carbon aerogel precursors. By using commercial phenolic resins, the preparation cost can be effectively reduced, and the preparation of large-size samples and the processing of special-shaped parts can be realized, which provides a new idea for the industrial application of carbon aerogel.
However, although commercial phenolic resins have certain advantages in reducing costs, their effects on the properties and stability of carbon aerogels need to be further studied and verified.
Therefore, how to further reduce costs and improve preparation efficiency under the premise of ensuring the performance of carbon aerogels is one of the focuses of current research. This will also provide a broader development space for the application of carbon aerogel in the field of high-temperature thermal insulation in the future.