| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing a thick polyvinylidene fluoride porous body. <P>SOLUTION: The method for producing a polyvinylidene fluoride porous body containing, as a main component, polyvinylidene fluoride and having a thickness of ≥1 mm includes the steps of: obtaining a polyvinylidene fluoride solution by dissolving the polyvinylidene fluoride in a solvent by heating the polyvinylidene fluoride at a temperature of 100-160°C; cooling the polyvinylidene fluoride solution at a temperature of -196 to 30°C for 1 minute to 24 hours to obtain a deposited formed body; and separating and drying the formed body to obtain the porous body. The solvent comprises a poor solvent to polyvinylidene fluoride and a good solvent to polyvinylidene fluoride. <P>COPYRIGHT: (C)2012,JPO&INPIT |
