Microstructure and Mechanical Properties of the Butt Joint in High Density Polyethylene Pipe

Figure 11

(a) Diffusion of polyethylene chains across weld interface at standard welding condition. (b) Partial diffusion of polyethylene chains across weld interface during cold fusion. The illustration shows evolution of minor chains from interface wetting until chains have diffused an average distance equal to the radius of gyration, adapted from Ezekoye et al. [10].

(a)

(b)