Electronic grade polyimide (PI) film is an important material, which has broad application prospect in flexible printed circuit field. However, at present, there is a gap between the overall level of China's PI film industry and foreign countries, and the domestic market is mainly occupied by foreign giants, and the products are heavily dependent on imports. Under the background of upgrading of China's industrial structure and localization of key materials, the import substitution market space of electronic grade PI film is huge.

Electronic grade PI films have important application value in flexible printed circuits. Flexible printed circuit is a thin, flexible, bendable circuit board, which can realize circuit wiring and connection on various curved surfaces. The electronic grade PI film has excellent insulation properties, high temperature resistance and mechanical strength, and is very suitable for the preparation of flexible printed circuits. It can be used as the substrate material, isolation layer and package protection layer of the circuit board to effectively improve the reliability and stability of the flexible printed circuit.

The combined extraction centrifugal extractor has a unique advantage in the preparation of electronic grade PI films. The combined extraction centrifugal extractor is an efficient separation equipment. By adjusting the parameters of centrifugal force and temperature, the target components can be extracted and purified efficiently. In the preparation of electronic grade PI films, the combined extraction centrifugal extractor can be used to remove impurities, adjust the component content in the films, and further optimize the properties of the films. The combined extraction centrifugal extractor has the advantages of simple operation and high separation efficiency, which can improve the quality and production efficiency of electronic grade PI films.

Electronic grade PI films have a wide application prospect in flexible printed circuits. With the upgrading of China's industrial structure and the demand for localization of key materials, the import substitution market of electronic grade PI film is huge. In the preparation process, the combined extraction centrifugal extractor, as an efficient separation equipment, can play an important role in achieving efficient extraction and purification of the target components. Therefore, it is of great significance to strengthen the research and development of electronic grade PI film technology and the application of combined extraction centrifugal extractor, which is conducive to the development and localization process of China's electronic grade PI film industry.