| 摘要 |
<p>Wet polyolefin fibrils (10) of hydrophobic nature and cooled in water (24) are placed on a water-permeable tape (14) continuously circulating over at least two rollers (18, 20), where the water (24) drains off. The polyolefin fibrils are then guided to a heated roller (22) of large diameter. The fibres are dried to form a compact, tape-like nonwoven (28) on the surface (26) thereof, compressed and wound or cut into sections. The nonwoven is passed to a comminuting and disintegrating machine (32), in particular a hammer mill or a mixer, for impacting, after appropriate storage. A loosened, flaked, hydrophobic pulp which has a large absorption capacity for oily liquids, for example crude oil or derivatives thereof, is thus produced. The flaked, hydrophobic pulp loosened by impacting has a greater absorption capacity than a nonwoven. The polyolefin fibrils (10) of a binder are joined to one another at points by means of thermobonding.</p> |
