Please tell me if you succed in doing it.

Please let me suggest you to make the fabric by waving piezo fibers. As far as I know PVDF needs some kind of mechanical or electrical exposure in order to be as piezo as one would need to make it a sensor. Unless it's almost rubish. If one uses pizo fibers, there ar all the chances to get a good sensorial surface out of it - and it leaves you only with the quest to deposit the metalic electrodes - which in not as imposible but still, not easy since the adhesion of metal on PVDF's surface is not so good. Or, you can always think about PVDF foil (for ex: 5-10 mum thich), which is comecialy available and almost neglijable in terms of mechanical influence. All in all, please consider that this kind of material, does not support heat since it becomes unusuable. I think some PZT based fibers are more versatile, but also more expensive.

Fatemeh, I strongly recommend Prof. Gleason's research in MIT. They work has been commercialized at least for PTFE.

http://web.mit.edu/gleason-lab/research.htm

I am sure it will be of use for you.

Hi, such a kind of novel thinking. May i know, for what type of sensor your are going to work? I can give some of my suggestions...

I want it for application such in military or health monitoring in medical application for example heart beat

See these ref:

http://www.tandfonline.com/doi/abs/10.1080/10584580903324493

http://onlinelibrary.wiley.com/doi/10.1002/marc.201100040/abstract

thanks Dipankar for your help.

Although I have not personally impregnated a cloth with PVDF or PVDF-TrFE, it should not be difficult as a solution in MEK. Microphone elements were done this way years ago by impregnating silk with PVDF-TrFE.

Unfortunately PVDF prepared this way could not be 300-500% deformed to render it into a beta phase. PVDF-TrFE begins as a beta phase so this material would easily work in this application. You would have to impregnate the cloth, remove the MEK by evaporation, then oven treat the PVDF-TrFE between the Curie and melting tempeatures, then corona pole the material to make it piezoelectric, then apply electrodes.