Preparation and Piezoelectric Investigation of Electrospun Polyvinylidene Fluoride Fibrous Membrane

Flexible Piezoelectric Pressure Tactile Sensor Based on Electrospun BaTiO3/Poly(vinylidene fluoride) Nanocomposite Membrane

“…Because of less orientation of BT-20 (Figure 1d), not all the fibers in the deformation area were bent, which limited the producing of piezoelectric charges and resulted in low output voltages. 32 These results also indicate that addition of the BaTiO 3 NPs not only is beneficial to crystallizing of the BaTiO 3 /PVDF nanocomposite and further obtaining the higher content of the polar β phase but also enhances their piezoelectric properties.…”

“…However, compared with the voltage output and the content of the polar β phase of BT-0 and BT-20 (Figure a,c), it is noted that the voltage output of BT-20 is lower than that of BT-0, but the content of the polar β phase of BT-20 is higher than that of BT-0. Because of less orientation of BT-20 (Figure d), not all the fibers in the deformation area were bent, which limited the producing of piezoelectric charges and resulted in low output voltages . These results also indicate that addition of the BaTiO 3 NPs not only is beneficial to crystallizing of the BaTiO 3 /PVDF nanocomposite and further obtaining the higher content of the polar β phase but also enhances their piezoelectric properties.…”

“…The BaTiO 3 /PVDF nanocomposite fibrous membranes with different loading of BaTiO 3 NPs are fabricated as a piezoelectric generator to show the piezoelectric property. The structure of the piezoelectric generator is similar to that in previous work, which consists of copper foil electrodes on the top and bottom, and between them is BaTiO 3 /PVDF nanocomposite membrane. To illustrate the piezoelectric properties, the measurement is carried out by exerting a periodic bending–releasing force.…”

Electrospun PVDF Nanofibers for Piezoelectric Applications: A Review of the Influence of Electrospinning Parameters on the β Phase and Crystallinity Enhancement

“…Although this problem can be solved by increasing the needle and tube diameters, the fiber diameter is increased. For example, in the experiment of Fu et al, the PVDF with a Mw of 777,000 g·mol −1 was tested, and a high F(β) value (93.2%) was obtained [ 100 ].…”

Tuning energy harvesting devices with different layout angles to robust the mechanical-to-electrical energy conversion performance

“…b-phase content increases [13,26]. This suggests that nonpolar a-phase is converted to polar b-phase, and the crystalline phase and dipole alignment in the nanofbers were induced directly by the drum speed in the electrospinning process [27].…”