초록 |
Recently, biodegradable films made from natural polymers have been used in wide range of fields to replace synthetic polymers films. For practical use of them, it is essential to produce a large-area film. In this study, we introduce a method of producing large-area film using horizontal centrifugal casting (HCC) system. In this system, the polymer solution is poured into a cylindrical mold and the mold is rotated at a constant speed with its rotor axis being horizontal. It can shorten the production time and fabricate large-area film compared with the method using vertical centrifugal casting system or evaporation casting. We fabricated transparent chitin film and nacre mimetic nano composites using HCC system. It was also confirmed that the fabricated films had the same structural and functional characteristics as the films fabricated by conventional method. |