SUPPORT FOR SEPARATION MEMBRANE, AND METHOD FOR PRODUCTION THEREOF

摘要

The present invention provides a support for a separation membrane, which has exhibits an excellent film-forming property and excellent mechanical strength when used for supporting a separation membrane such as a microfiltration membrane, an ultrafiltration membrane, a nanofiltration membrane and a reverse osmotic membrane, and a separation membrane and a fluid separation element each utilizing the support for a separation membrane. The support for a separation membrane of the present invention comprises a long-fiber nonwoven fabric composed of thermoplastic continuous filaments. The thermoplastic continuous filament is preferably a complex-type filament comprising a high melting point polymer and a low melting point polymer having a melting point lower by 10 to 140°C than that of a highmelting point polymer and arranged about the highmelting point polymer.