abstract |
The present invention provides a method for producing a porous membrane capable of producing a porous thin film simply and efficiently, a porous membrane obtained by the method, and a porous membrane production apparatus. A coating solution containing an organic compound and a hydrophobic organic solvent is coated on a support to form a coating film adjusted to 0 ° C. or more and 10 ° C. or less, and the dew point is determined based on the temperature of the coating film. A method for producing a porous film comprising a step of supplying a vapor-containing gas containing highly regulated water vapor to a coating film, condensing water vapor on the coating film and drying the coating film, and a porous film obtained by the method And a porous membrane manufacturing apparatus applicable to the manufacturing method of the present invention. [Selection] Figure 1 |