Electrofusion coupling element and electrofusion coupling element manufacturing process

摘要

An electrofusion coupling element (10) comprising: a body (12) having at least one contact surface (13a); and at least one electric resistance heating element (14) placed in or on said body (12) adjacent to said contact surface, wherein said body (12) comprises at least one thermoplastic composition (16) comprising a thermoplastic substance and a plurality of aluminum particles incorporated in said thermoplastic substance and constituting a thermoplastic composition containing aluminum particles, and in which a concentration of said aluminum particles in said thermoplastic substance ranges from 1 percent by weight to 30 weight percent of the total weight of said thermoplastic substance.