Immersion precipitation printing of PVDF

Piezoelectric property’s of PVDF makes it an interesting choice for application in various fieldssuch as nervous applications and biosensors. The piezoelectric property of PVDF is due to thepresence of a β phase. β phase is polar and electroactive. However, is not readily available as α phasevia polymerization or melt crystallization. Consequently, there has been an ongoing research toenhance β phase. Ip-۳D printing offers the advantage of generating micropores in the printed filament.The structure is influenced by solvent and non-solvent exchange rate. In this study, ip-۳D printing(immersion precipitation ۳D printing) was used to investigate its effect on transition of α phase to βphase in PVDF. The results from printed samples indicate the presence of the β phase anddiminishing of the α phase. The obtained structure is dense and crystalline as a result of slow rate ofsolvent and non-solvent exchange .

کلیدواژه ها:

Additive manufacturing and ۳D printing inks ، ip-۳D printing ، Conductive andelectroactive polymers