METHOD AND DEVICE FOR MANUFACTURING OF A FIBRE-REINFORCED POLYMER COMPOSITION

摘要

The present invention is directed to a method of manufacturing a fibre-reinforced polymer composition comprising the steps of providing at least one multifilament strand comprising a plurality of continuous fibre filaments (5), applying an impregnating agent (10) to said strand to form an impregnated continuous multifilament strand, and embedding the impregnated continuous multifilament strand in a thermoplastic polymer material (3) for providing said fibre reinforced polymer composition, wherein said impregnating agent has a low viscosity at application temperature and is applied by jetting said impregnating agent onto the at least one continuous multifilament strand. The invention is further directed to a device (20) for use in such a method.

主权项

1. A method of manufacturing a fibre reinforced polymer composition comprising:
providing at least one continuous multifilament strand comprising a plurality of continuous fibre filaments, applying an impregnating agent to said strand to form an impregnated continuous multifilament strand, and applying a sheath of thermoplastic polymer material around the impregnated continuous multifilament strand for providing said fibre reinforced polymer composition,wherein said impregnating agent has a tow viscosity of from 2.5 to 100 cS at application temperature and is applied by jetting said impregnating agent onto the at least one continuous multifilament strand and wherein said jetting is performed by pressurizing the impregnating agent and conveying it through at least two jetting channels or through a jetting slit towards the at least one strand.