Nanoporous Membrane Characteristic Discrimination through Analysis of Passing Gas Pressure Pattern and Pressure Variation Pattern

Abstract

Recent developments in battery membranes, gas separations, and antibacterial filters have resulted in increased attention on nanoporous materials because of their excellent related properties. Owing to their unique properties and industrial applications, numerous articles on nanoporous materials have been published. However, few methods are available to analyze nanoporous materials in a fast and nondestructive manner. In this paper, the method for the fast and nondestructive analysis of nanoporous materials is proposed using the pressure patterns generated by air passing through the membrane. When air passes through the membrane, different amounts of energy are lost per membrane because of their unique structure and properties. This energy loss causes phenomena such as pressure drops and low-pressure variations, resulting in unique pressure patterns. The results show the possibility of nanoporous membrane characterization and recognition using air pressure patterns generated by passing through the membrane.