| 摘要 |
<p>A method and arrangement for compounding plastic materials and natural fibers such as hemp, flax etc. according to which dosed natural fiber(s) is/are introduced into an extruder at at least two separate points of introduction downstream (6) and upstream (7) - and plastic materials such as PVC, PVC/PVAC, ABS/PC, ABS/PA, PPO/PS are introduced at least at the first upstream point of introduction of said natural fibers and optionally (possible remainder of plastic material) at the second upstream point of introduction of said fibers or at one or several downstream points of introduction of said fibers if more than two points of introduction of the fibers exist. The invention also relates to a method and arrangement for dosing natural fibers and the uses of the compounds, i.e. as inserts or reinforcements for windows or doors, skirting boards, profiled sections for shutters, apertures, partition walls, barriers in the construction industry, structural parts, parts underneath the engine hood, interior design parts for all types of vehicles, packagings and conditioning elements: crates, crate pallets, toys, technical parts.</p> |
