论文信息 - Measurement of active pore size distribution of microporous membranes - a new approach

Measurement of active pore size distribution of microporous membranes - a new approach

Abstract The active pore size distribution of a Millipore MF-VS membrane filter was studied by a new, recently developed, measurement method. The effect of absolute pressure and equilibration time (the amount of time during which the tested sample was allowed to equilibrate with the gas phase under a given set of conditions) on the resultant pore size distribution profiles was investigated. The results indicate that a drastic reduction in time needed to measure the active pore size distribution by this new method is made possible by performing the measurement at subatmospheric pressures in the range 40-80 mmHg. Apparently with equilibration times of not more than 15-20 min correct pore size distribution profiles may be obtained at these lower absolute pressures.

A. Mey-Marom | M. G. Katz | A. Mey-Marom

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