| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a free-standing polymer ultrathin film in which uniformity of film thickness is high while having good film properties and high productivity and to provide an apparatus for producing the polymer ultrathin film.SOLUTION: The method for producing the free-standing nano sheet includes: a film-forming step for forming a nano-sheet on a base body 32 by spraying A liquid and B liquid containing polymer on the base body 32 using a spray gun 6a for the A liquid and a spray gun 6b for the B liquid; a drying step for drying the formed nano sheet; and a separating step for separating the dried nano sheet from the base body 32. In the film-forming step, an attaching quantity of solutions per unit area on the base body 32 is controlled by: relatively moving the spray gun 6a for the A liquid, the spray gun 6b for the B liquid and the base body 32; and controlling the relatively moving speed and feeding quantity of the solutions fed to the spray gun 6a for the A liquid and the spray gun 6b for the B liquid. |
