Title :
Influence of the processing conditions and corona poling on the morphology of β-PVDF
Author :
Sencadas, V. ; Lanceros-Mendéz, S. ; Filho, R. Gregorio ; Chinaglia, D.L. ; Pouzada, A.S.
Author_Institution :
Dept. de Engenharia de Mater., Univ. Fed. de Sao Carlos, Brazil
Abstract :
The α→β phase transformation of PVDF through the stretching process at different temperatures was investigated. The optimum stretching conditions were studied and characterised by infrared spectroscopy and differential scanning calorimetry. The maximum β-phase content was achieved at 80 °C and a stretch ratio of 5. These samples were poled at several electric fields by the corona charge method. The effect of the electric field on the phase transformation was studied by infrared spectroscopy.
Keywords :
corona; dielectric polarisation; differential scanning calorimetry; electric field effects; infrared spectra; phase transformations; polymers; β-PVDF; β-poly(vinylidene fluoride); 80 C; corona charge method; corona poling; differential scanning calorimetry; electric field; infrared spectroscopy; phase transformation; stretching process; Calorimetry; Corona; Crystallization; Electromagnetic wave absorption; Infrared spectra; Morphology; Ovens; Polymers; Solvents; Temperature;
Conference_Titel :
Electrets, 2005. ISE-12. 2005 12th International Symposium on
Print_ISBN :
0-7803-9116-0
DOI :
10.1109/ISE.2005.1612345
