Autohesion bond development

Figure 7.22 Schematic diagram of autohesive bond strength development across an interface...

Consolidation and development of interlaminar bond strength for thermoplastic matrix composites have been modeled by two mechanisms intimate contact and autohesion. Intimate contact describes the process by which two irregular ply surfaces become smooth (Fig. 13.10). In areas in which the ply surfaces are in contact, autohesion occurs, and the long thermoplastic polymer chains diffuse across the ply boundaries. Filament winding with thermoplastic matrix materials is considered an on-line consolidation process in that local... 

In Figure 9.2 the diffusion bonding process is schematically shown. The adhesive forces developing in this way are also called autohesion. 

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