The downstream application of PI film is extensive, and the product demand is large. It includes insulation material field, semiconductor and microelectronic industry field, electronic label field, amorphous silicon solar cell field, FCCL field and so on. Electrical grade PI film has been produced in large scale in China due to its low requirements, and its performance has no obvious difference with foreign products; electronic grade PI film is produced with the development of FCCL, which is the largest application field of PI film. In addition to maintaining the excellent physical and mechanical properties of electrical pi film, it puts forward more stringent requirements on the thermal expansion coefficient and in-plane isotropy (thickness uniformity) of thin film. Due to the performance gap between domestic PI film and imported PI film, it can not meet the requirements of medium and high-end products of FCCL, and a large number of electronic grade PI films will be imported in the future. On the other hand, the future high-performance PI film has broad market prospects in the flexible organic thin film solar cell, new generation flexible LCD and OLED display industry, as well as lithium-ion and other new power battery technology industries.
Due to the diversification and shorter life cycle of consumer electronic products, resulting in less product quantity and high customization, domestic related enterprises can actively participate in the industry and carry out niche competition. At the same time, they can provide one-stop service, carry out differential manufacturing of small and medium-sized PI film products, and reduce the labor cost of customers' investment in FCCL design. In the future, the research of PI thin films will be developed in the direction of high performance, multi-function, easy processing and low cost. Through molecular structure design, new synthesis technology and nanocomposite technology to achieve the serialization and functionalization of products, and constantly expand new varieties and uses, so as to improve market share.http://www.china-polyimide.com