POROUS SUPPORT HAVING GOOD CHEMICAL RESISTANCE AND THERMAL STABILITY, METHOD FOR MANUFACTURING THE SAME, AND REINFORCED MEMBRANE COMPRISING THE SAME

摘要

The present invention relates to a porous support comprising a nanoweb in which nanofibers are integrated in the form of a non-woven fabric including a plurality of pores, the nanoweb having 40 to 85 of a yellowness index measured in accordance with an ASTM E-313 method, a method for preparing the porous support, and a reinforced membrane comprising the porous support. A porous support according to the present invention is very advantageous when the porous support is applied to fuel cells since the porous support has very excellent heat resistance and hydrophilicity as well as excellent air permeability and water permeability.