TY - GEN
T1 - Effect of processing conditions on the microstrucure and electromechanical response of pvdf trfe ctfe terpolymers
AU - Sigamani, Nirmal Shankar
AU - Ahmed, Saad
AU - Ounaies, Zoubeida
N1 - Publisher Copyright:
Copyright © 2014 by ASME.
PY - 2014
Y1 - 2014
N2 - Effect of annealing time on the microstructure and electromechanical properties PVDF TrFE CTFE terpolymer with 7.8 mol % CTFE was investigated to better understand structure-property relationships in these polymers. DSC results show that the 9 hr-annealing time gives the maximum enthalpy of melting which suggests the crystallinity of the polymer is increased. WAXS results show that annealing increases the proportion of the ã-phase with the ratio of the intensity of ã -phase to α-phase increases with more annealing time. Dielectric spectroscopic study of 9hr-annealed film also suggests that the film shows complete relaxor ferroelectric behavior with a maximum electrostrictive strain up to 4.4% compared to 4.1% for the 2.5 hr-annealed film. Finally, annealing time higher than 9 hrs result in a decrease in the electrostrictive strain.
AB - Effect of annealing time on the microstructure and electromechanical properties PVDF TrFE CTFE terpolymer with 7.8 mol % CTFE was investigated to better understand structure-property relationships in these polymers. DSC results show that the 9 hr-annealing time gives the maximum enthalpy of melting which suggests the crystallinity of the polymer is increased. WAXS results show that annealing increases the proportion of the ã-phase with the ratio of the intensity of ã -phase to α-phase increases with more annealing time. Dielectric spectroscopic study of 9hr-annealed film also suggests that the film shows complete relaxor ferroelectric behavior with a maximum electrostrictive strain up to 4.4% compared to 4.1% for the 2.5 hr-annealed film. Finally, annealing time higher than 9 hrs result in a decrease in the electrostrictive strain.
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U2 - 10.1115/SMASIS20147696
DO - 10.1115/SMASIS20147696
M3 - Conference contribution
AN - SCOPUS:84918590834
T3 - ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014
BT - ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014
PB - Web Portal ASME (American Society of Mechanical Engineers)
T2 - ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014
Y2 - 8 September 2014 through 10 September 2014
ER -