Development of bacterial cellulose and poly(vinylidene fluoride) binary blend system: Structure and properties

•Bacterial cellulose and poly (vinylidene fluoride) binary blend system was developed.•Bio-blend material was designed as flexible substrate with additional feature of touch screen characteristic.•There is significant improvement on dielectric properties superior to neat bacterial cellulose.

Bacterial cellulose (BC)/Poly(vinylidene fluoride) (PVDF) was successfully prepared by a binary blend system. Less than 50 wt% of BC was completely incorporated into the PVDF matrix. PVDF penetrated the porous nano-fibril network of the BC structure. The thermal properties of this blend material were stable up to 250 °C. Significant enhancement of the dielectric properties was found; this binary blend provided high polarization and dielectric properties.