Method for producing a polymer material filled with long fibers

摘要

The invention relates to a method for producing a polymer material filled with long fibers, wherein the fibers, which normally have a certain residual moisture of approximately 5 to 8% and which have minimum length greater than 2 mm, and a carrier material are mixed and heated in a reactor or cutter-compactor, wherein the substrate material is constantly moved and optionally disintegrated and the flowability or lumpiness is constantly maintained. According to the invention, the conditions, in particular the temperature, in the reactor are set in such a way that the fibers are dried to the lowest possible residual moisture at which the fibers are just sufficiently flexible enough to fracture neither during the processing in the reactor nor during an optional subsequent compression, for example an extrusion.