I doubt that you would see much damage in solution unless the viscosity is extremely high. Melt processing does lead to damage, but it involves a combination of thermal and mechanical stress.

Dear Peter Farrington,

Thank you so much for your attention. The viscosity of the solutions with the same materials but different concentration (PVDF: 15-20 wt%- PEG: 5-10 wt%) is around 10- 24 Pa.S.

Could you please clarify this more: "It involves a combination of thermal and mechanical stress"

Regards

Dear B D S Deeraj,

Thank you so much for your reply.

Yes. I think PVDF chains are enough rough to resist against of turbulent flow.

Regards

Here's a nice paper on the topic

http://www.pnas.org/content/103/45/16660

Dear Peter Farrington,

Thank you so much for your great help.

Best Regards

turbulence is not detrimental, in contrast: you need it! as you are not preparing a true solution (for which the preparation conditions are not critical), but a dispersion, you need an overcritical shear rate, please see this here:

Article Critical Shear Rate - the Instability Reason for the Creatio...

I also would like to refer to this paper:

Article On turbulence in dilatant dispersions

Dear Dr. Bernhard Wessling,

Thank you so much for suggested papers. I greatly appreciate your passion for helping. I absolutely study them curiously.

Best Regards

Foroogh