FLUORORESIN MEMBRANE, FLUORORESIN COMPOSITE, POROUS FLUORORESIN COMPOSITE, PROCESSES FOR PRODUCTION OF THEM, FLUORORESIN DISPERSION AND SEPARATION MEMBRANE ELEMENT

摘要

There are provided a fluororesin thin film which is composed of a fluororesin, which has a thickness of 20 µm or less and a Gurley's number of 300 seconds or more, and which includes no defects, such as voids and/or cracks; a method for manufacturing the fluororesin thin film in which after a fluororesin dispersion including a dispersing medium and a fluororesin powder dispersed therein is applied on a flat and smooth foil, the dispersing medium is dried, and the fluororesin powder is sintered; the fluororesin dispersion; a fluororesin composite including a porous base material and the fluororesin thin film; a manufacturing method thereof; a porous fluororesin composite formed by stretching the fluororesin composite; and a separation membrane element using the porous fluororesin composite.