Break-up of Fibrils into Droplets

This is not necessarily a requirement as the threads may be an effective reinforcement. This behaviour has been comprehensively reviewed [23], whilst the mechanism for commercial polymer combinations has been clearly illustrated in experiments by Elemans and co-workers [24] from observations of droplet formation from filaments 

In addition to experiments with an extruder having a single static mixer element and 

Overall, they concluded that the critical thickness for sheet break-up was not dependent on the viscosity of the matrix. Whether the threads broke up or not depended on the 

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