| 摘要 |
A flexible tubular member (embodiments) and a process for producing a flexible tubular member for multi-layered plastic pipes are described. Some embodiments of the flexible tubular member composition comprise a cross-linkable polymer system (for example, based on either acrylate or epoxy chemistry), a photoinitiator, and one or more additives such as a pigment, an antioxidant, a light stabilizer, or other additive. In an exemplary process of producing a flexible tubular member, a base pipe, for example comprising cross-linked polyethylene, is conveyed through an oxidizing step in which at least the outer surface of the base pipe is oxidized, through a coating step in which a pre-polymer system is applied to the outer surface of the base pipe and through a curing step in which the pre-polymer is cured to form a cross-linked coating layer. |
