Composite material with EMI shielding properties and process to produce it
摘要
說明書
For example, the amorphous polymer resin has an MFI of at least 10 g/10 min as measured at 200° C. under a load of 5 kg according to IS01133.
Examples of polystyrene resins suitable as component A are commercially available from Total?. For example, crystal polystyrene 1960N with an MFI of 30 g/10 min (5 kg-200° C.). For example, impact polystyrene 8260 with an MFI of 2.8 g/10 min (5 kg-200° C.).
For example, the at least one amorphous polymer resin is selected from a virgin amorphous polymer resin, an amorphous polymer post-consumer resin and a blend of a virgin amorphous polymer resin and an amorphous polymer post-consumer resin.
The at least one amorphous polymer resin may comprise an amorphous polymer post-consumer resin; for example, the at least one amorphous polymer resin comprises from 5 to 100 wt. % of amorphous polymer post-consumer resin based on the total weight of the amorphous polymer resin; for example, from 20 to 95 wt. %; for example, from 40 to 90 wt. %, for example, from 50 to 85 wt. %; for example, from 60 to 80 wt. %.
An example of polystyrene comprising 20 wt. % of polymer post-consumer resin that is commercially available from Total? is XLR 5550.
When at least one amorphous polymer resin is or comprises a post-consumer resin; the MFI of the amorphous resin post-consumer resin can be selected in the same manner as for the virgin resin.
The Component B being Metal-Coated Particles
Component B is at least one metal-coated particle and is present in the composite material in a content ranging from 15.0 to 60.0 wt. % based on the total weight of the composite material.
