Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/573
Title: Thermally stimulated depolarization current in ferroelectric blends of copolymers of vinylidene fluoride with trifluoroethylene
Authors: Bai, B.
Zhang, X.
Peng, Z.
Chan, Helen L. W.
Choy, Chung-loong
Subjects: Calculations
Copolymers
Crystal lattices
Differential scanning calorimetry
Electric current measurement
Ferroelectric materials
Fluorine containing polymers
Ketones
Phase transitions
X ray diffraction
Issue Date: 2002
Publisher: IEEE
Source: 11th International Symposium on Electrets (ISE 11) : 1-3 October, 2002, Glen Waverley, Melbourne, Australia : proceedings, p. 67-70.
Abstract: Ferroelectric blends of vinylidene fluoride (VDF)/trifluoroethylene (TrFE) copolymer with different molar ratio of 56/44, 60/40, 63/37, 70/30, 73/27 and 77/23 were fabricated by casting from methyl ethyl ketone solution. Thermally stimulated depolarization current (TSDC) of the samples has been measured using a modified thermal electric analyzer. Wide angle X-ray diffraction shows two peaks in the region of 2θ = 18-20° for all the blends, which indicates that the blends have the same crystal lattice structures as the copolymers. DSC results show that the blends display the phase transition characteristics of both copolymers of 77/23 and 56/44. TSDC spectra of the blends also exhibits the characters of both components at different polarization temperatures.
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Type: Conference Paper
URI: http://hdl.handle.net/10397/573
ISBN: 0780375602
Appears in Collections:MRC Conference Papers & Presentations
AP Conference Papers & Presentations

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