Abstract
Biaxially oriented films of polyvinylidene fluoride [-(CH2-CF2) n -...; PVDF] of thickness 25 μm, originally containing both the α and β crystal forms, have been corona charged at room temperature to surface potentials of up to 10 kV using positive and negative corona. The behaviour of the optical density of the α-form infra-red band at 796 cm−1, measured in the transmission mode, was found to be inverse to that of the piezoelectric coefficient, g 31, with increasing charging voltage. Attenuated total reflection (ATR) measurements on the same samples indicated that the extent of poling close to the surface which received the corona charge was less than that close to the earthed surface and less than that of the bulk. The results support a mechanism of dipole orientation for the origin of piezoelectricity in PVDF.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. Hasegawa, Y. Takahashi, Y. Chatani and H. Tadokoro, Polymer J. 3 (1972) 600.
Y. Wada and R. Hayakawa, Japan. J. Appl. Phys. 15 (1976) 2041.
N. Murayama, T. Oikawa and K. Nakamura, J. Polymer Sci. Polymer Phys. Ed. 13 (1975) 1033.
G. Pfister, M. Abkowitz and R. G. Crystal, J. Appl. Phys. 44 (1973) 2064.
R. J. Phelan, R. L. Peterson, C. A. Hamilton and G. W. Day, Ferroelectronics 7 (1974) 375.
S. Hunklinger, H. Sussner and K. Dransfeld, Festkorprobleme XVI (1976) 267.
H. Sussner and K. Dransfeld, J. Polymer Sci. Polmer Phys. Ed. 16 (1978) 529.
K. Takahashi, H. Lee, R. E. Salomon and M. M. Labes, J. Appl. Phys. 48 (1977) 4694.
H. Sussner and D. Y. Yoon, Organic Coatings & Plastics Chem. 38 (1978) 331.
H. Ohigashi, J. Appl. Phys. 47 (1976) 949.
P. D. Southgate, Appl. Phys. Lett. 28 (1976) 250.
D. K. Das Gupta and K. Doughty, J. Appl. Phys. 49 (1978) 4601.
G. T. Davis, J. E. McKinney, M. G. Broadhurst and S. C. Roth, ibid. 49 (1978) 4998.
M. Kobayashi, K. Tashiro and H. Tadokoro, Macromol. 8 (1975) 158.
D. K. Das Gupta, K. Doughty and D. B. Shier, J. Electrostatics (1979) to be published.
N. J. Harrick, “Internal Reflection Spectroscopy” (Interscience, New York, 1967) p. 30.
G. T. Davis, A. S. De Reggi and M. G. Broadhurst, Paper presented at Conference on Electrical Insulation and Dielectric Phenomena, Colonie, NY, USA, National Academy of Sciences Washington D.C. (1977).
R. E. Collins, Rev. Sci. Instrum. 48 (1977) 83.
G. W. Day, C. A. Hamilton, R. L. Peterson, R. J. Phelan and L. O. Mullen, Appl. Phys. Lett. 24 (1974) 456.
M. M. Shahin, Appl. Opt. Suppl. No. 3 “Electrophotography” (1969) 106.
Idem, J. Chem. Phys. 45 (1966) 2600.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Doughty, K., Pantelis, P. Surface effects in corona-charged polyvinylidene fluoride. J Mater Sci 15, 974–978 (1980). https://doi.org/10.1007/BF00552110
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00552110