Abstract:
An antenna module that comprises a housing that receives at least one antenna element configured to transmit and receive 5G radio frequency signals is disclosed. The housing contains a fiber-reinforced polymer composition comprising a polymer matrix that contains a thermoplastic polymer and a plurality of long reinforcing fibers that are distributed within the polymer matrix. The polymer composition exhibits a dielectric constant of about 3.5 or less and dissipation factor of about 0.009 or less at a frequency of 2 GHz.
Abstract:
An impregnation section of a die and a method for impregnating at least one fiber roving with a polymer resin are disclosed. The impregnation section includes an impregnation zone configured to impregnate the roving with the resin. The impregnation zone includes a plurality of contact surfaces, at least one of the plurality of contact surfaces defining a cut-away portion downstream in a run direction of the roving of a point-of-contact for the at least one of the plurality of contact surfaces. The at least one of the plurality of contact surfaces further includes an edge defined by the cut-away portion. Excess material build up is reduced by the cut-away portion.
Abstract:
A die and a method for impregnating at least one fiber roving with a polymer resin are disclosed. The die includes an impregnation section comprising an impregnation zone configured to impregnate the roving with the resin. The die further includes a passage at least partially defined in the impregnation section and in fluid communication with the impregnation zone, and a pump in fluid communication with the passage. The method includes coating at least one fiber roving with a polymer resin, traversing the coated roving through an impregnation zone of an impregnation section to impregnate the roving with the resin, and applying an external pressure to the impregnation zone.
Abstract:
A hollow lineal profile formed from a continuous fiber reinforced ribbon (“CFRT”) that contains a plurality of continuous fibers embedded within a first thermoplastic polymer matrix. To enhance the tensile strength of the profile, the continuous fibers are aligned within the ribbon in a substantially longitudinal direction (e.g., the direction of pultrusion). In addition to continuous fibers, the hollow profile of the present invention also contains a plurality of long fibers that may be optionally embedded within a second thermoplastic matrix to form a long fiber reinforced thermoplastic (“LFRT”). The long fibers may be incorporated into the continuous fiber ribbon or formed as a separate layer of the profile. Regardless, at least at a portion of the long fibers are oriented at an angle (e.g., 90°) to the longitudinal direction to provide increased transverse strength to the profile.
Abstract:
Pipe sections and methods for forming pipe sections are disclosed. A pipe section includes a hollow body formed from a metal material, the hollow body having an inner surface and an outer surface, the inner surface defining an interior. The pipe section further includes a barrier layer surrounding and bonded to the hollow body, the barrier layer having an inner surface and an outer surface. The barrier layer is formed from a continuous fiber reinforced thermoplastic material. Such pipe sections may be lightweight and flexible while exhibiting improved strength characteristics.
Abstract:
An impregnation section of a die and a method for impregnating at least one fiber roving with a polymer resin are disclosed. The impregnation section includes an impregnation zone configured to impregnate the roving with the resin. The impregnation zone includes a plurality of contact surfaces, at least one of the plurality of contact surfaces defining a cut-away portion downstream in a run direction of the roving of a point-of-contact for the at least one of the plurality of contact surfaces. The at least one of the plurality of contact surfaces further includes an edge defined by the cut-away portion. Excess material build up is reduced by the cut-away portion.
Abstract:
A die and a method for impregnating at least one fiber roving with a polymer resin are disclosed. The die includes an impregnation section comprising an impregnation zone configured to impregnate the roving with the resin. The die further includes a passage at least partially defined in the impregnation section and in fluid communication with the impregnation zone, and a pump in fluid communication with the passage. The method includes coating at least one fiber roving with a polymer resin, traversing the coated roving through an impregnation zone of an impregnation section to impregnate the roving with the resin, and applying an external pressure to the impregnation zone.
Abstract:
A die and method for impregnating at least one fiber roving with a polymer resin are disclosed. The die includes an impregnation section. The impregnation section includes an impregnation zone configured to impregnate the roving with the resin. The impregnation zone includes a plurality of contact surfaces. At least one of the plurality of contact surfaces is configured such that a normal force of the roving is less than or equal to a lift force of the resin at an impregnation location on the contact surface during impregnation of the roving with the resin by the contact surface.
Abstract:
An electronic module that comprises a housing that receives at least one electronic component is disclosed. The housing contains a fiber-reinforced polymer composition comprising a polymer matrix that contains a thermoplastic polymer and a plurality of long reinforcing fibers that are distributed within the polymer matrix. The polymer composition exhibits a dielectric constant of about 4 or less and dissipation factor of about 0.01 or less at a frequency of 2 GHz. Further, the polymer composition exhibits a Charpy unnotched impact strength of about 20 kJ/m2 or more as determined in accordance with ISO Test No. 179-1:2010 at a temperature of about 23° C.
Abstract:
A fiber-reinforced polymer composition comprising from about 60 wt. % to about 90 wt. % of a polymer matrix that contains a propylene polymer and from about 10 wt. % to about 40 wt. % of a plurality of long reinforcing fibers that are distributed within the polymer matrix, is provided. The polymer composition exhibits a dielectric constant of about 4 or less and dissipation factor of about 0.01 or less at a frequency of 2 GHz. Further, the polymer composition exhibits a Charpy unnotched impact strength of about 20 kJ/m2 or more as determined in accordance with ISO Test No. 179-1:2010 at a temperature of about 23° C., and a Limiting Oxygen Index of about 25 or more as determined in accordance with ISO 4589:2017.