초록 |
Porous polyimide (PI) foam is widely used as an insulating material in various fields such as automobile, semiconductor, and aerospace due to its excellent heat resistance, mechanical properties, and insulating properties. We recently reported a method for manufacturing composite PI foam with very high porosity of 74% or more using a solution process-based high internal phase Pickering emulsion (HIPPE) technique. This method has the advantage of fabricating the high porous PI composite and efficiently controlling the porosity of final porous polymer composites. In this talk, we would like to introduce HIPPE-based porous PI foam with various monomer compositions. Moreover, functional PI foams will be explained by compositing heterogeneous fillers and controlling the pore structure suitable for various purposes. Finally, the applications of functional PI foam will be introduced such as electronic devices, battery separators, desalination, and absorption of heavy metals. |