论文信息 - The measurement of the shear piezoelectric coefficients of polyvinylidene fluoride

The measurement of the shear piezoelectric coefficients of polyvinylidene fluoride

Measurements of the shear piezoelectric coefficients d15 and d24 are reported for uniaxially oriented polyvinylidene fluoride (PVDF). Results are presented for non-voided sheet of low and high Young's modulus and for a low modulus voided sheet. In all cases samples of high Form I content were prepared, and subjected to comparable poling voltages. It is of interest to note that the values obtained for the shear coefficients are comparatively high (in the range -13 to -38 pCN-1) and in the case of d24 much greater than the calculated value for the Form I PVDF crystal.

I. M. Ward | I. Ward | E. L. Nix

[1] Robert Bruce Lindsay,et al. Physical Properties of Crystals , 1957 .

[2] Y. Wada,et al. Piezoelectricity and related properties of polymer films , 1973 .

[3] Yasaku Wada,et al. Piezoelectricity and Pyroelectricity of Polymers , 1976 .

[4] R. Anderson,et al. Piezoelectricity in polymers , 1980 .

[5] I. Ward,et al. Highly drawn poly (vinylidene fluoride) with enhanced mechanical and electrical properties , 1981 .

[6] I. Ward,et al. High effective draw as a route to increased stiffness and electrical response in poly(vinylidene fluoride) , 1980 .

[7] E. Fukada,et al. Calculation of Elastic and Piezoelectric Constants of Polymer Crystals by a Point Charge Model: Application to Poly(vinylidene fluoride) Form I , 1980 .