DETERMINATION OF THE SPECIFIC SURFACE OF FIBROUS MATERIALS

Abstract

The Kozeny equation relating specific surface and permeability of a bed of unconsolidated particles has been shown to be applicable to fibrous materials such as glass, wool, and celanese. The diameters of the constituent fibre may be as small as 0.0006 cm., while their ratio of length to diameter may be indefinitely large. Uniformity of size or of packing is not essential.