THERMOPLASTIC EXTRUSION WITH VAPOR BARRIER AND SURFACE SULFONATION

摘要

A reinforced thermoplastic extrusion and a related method of manufacture are provided. The reinforced thermoplastic extrusion includes an extruded polymeric member, a thermoplastic reinforcing layer, and an intermediate vapor barrier between the extruded polymeric member and the thermoplastic reinforcing layer. The intermediate vapor barrier is bonded to the exterior of the extruded polymeric member and/or the interior of the thermoplastic reinforcing layer to limit the transfer of volatile hydrocarbons therethrough. Surface sulfonation can additionally be included to decrease the permeability of the thermoplastic extrusion to volatile hydrocarbons and other gases that can affect the performance of the outer thermoplastic reinforcing layer.

主权项

1. A method for forming a reinforced extrusion, the method comprising:
extruding a polymeric material into a tubular member; applying a first vapor barrier to the tubular member; and overwrapping the first vapor barrier with a thermoplastic reinforcing layer, the first vapor barrier being between the tubular member and the thermoplastic reinforcing layer to reduce the transfer of volatile hydrocarbons therethrough.