Enhancement of β phase crystallization and dielectric behavior of kaolinite/halloysite modified poly(vinylidene fluoride) thin films

被引:125
作者
Thakur, Pradip [1 ]
Kool, Arpan [1 ]
Bagchi, Biswajoy [2 ]
Das, Sukhen [1 ]
Nandy, Papiya [1 ]
机构
[1] Jadavpur Univ, Dept Phys, Kolkata 700032, India
[2] Cent Glass & Ceram Res Inst, Fuel Cell & Battery Div, Kolkata 700032, India
关键词
PVDF; Clay mineral; beta-Phase; Dielectric properties; Interfacial polarization; BETA-POLY(VINYLIDENE FLUORIDE); ELECTRICAL-PROPERTIES; AC CONDUCTIVITY; NANOCOMPOSITES; COMPOSITES; PVDF; MICROSTRUCTURE; TRANSFORMATION; NANOCLAY; RELAXATION;
D O I
10.1016/j.clay.2014.06.025
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Poly(vinylidene fluoride) with different contents (1-15 mass%) of clay minerals (kaolinite and halloysite) has been synthesized by solution-casting method to investigate the electroactive beta-phase formation mechanism and the dielectric properties of the clay polymer nanocomposite (CPN) films. X-ray diffraction spectra, Fourier transform infrared spectroscopy, micro-Raman spectroscopy and differential scanning calorimetry confirmed the formation of electroactive beta-phase in PVDF matrix after the addition of clay minerals. Field emission scanning electron microscope images showed interfacial interaction in CPN between the polymer matrix and the clay minerals resulting in enhanced electroactive beta-phase nucleation and large dielectric constant of the CPN thin films. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:149 / 159
页数:11
相关论文
共 47 条
[1]   Crystallization behavior of nano-composite based on poly(vinylidene fluoride) and organically modified layered titanate [J].
Asai, Kumiko ;
Okamoto, Masami ;
Tashiro, Kohji .
POLYMER, 2008, 49 (19) :4298-4306
[2]   Vibrational spectrum of PVDF and its interpretation [J].
Bormashenko, Y ;
Pogreb, R ;
Stanevsky, O ;
Bormashenko, E .
POLYMER TESTING, 2004, 23 (07) :791-796
[3]   γ-Phase nucleation and electrical response of poly(vinylidene fluoride)/microporous titanosilicates composites [J].
Caparros, Cristina ;
Lopes, Ana Catarina ;
Ferdov, Stanislav ;
Lanceros-Mendez, Senentxu .
MATERIALS CHEMISTRY AND PHYSICS, 2013, 138 (2-3) :553-558
[4]  
Chakraborty A. K., 2004, Clay Science, V12, P235
[5]   The effect of fibre concentration on the α to β-phase transformation, degree of crystallinity and electrical properties of vapour grown carbon nanofibre/poly(vinylidene fluoride) composites [J].
Costa, P. ;
Silva, J. ;
Sencadas, V. ;
Costa, C. M. ;
van Hattum, F. W. J. ;
Rocha, J. G. ;
Lanceros-Mendez, S. .
CARBON, 2009, 47 (11) :2590-2599
[6]   Conduction and polarization mechanisms and trends in dielectrics [J].
Dalkin, T. W. .
IEEE ELECTRICAL INSULATION MAGAZINE, 2006, 22 (05) :11-28
[7]   On the structure and morphology of polyvinylidene fluoride-nanoclay nanocomposites [J].
Dillon, DR ;
Tenneti, KK ;
Li, CY ;
Ko, FK ;
Sics, I ;
Hsiao, BS .
POLYMER, 2006, 47 (05) :1678-1688
[8]   Simulation of α- and β-PVDF melting mechanisms [J].
Erdtman, Edvin ;
Satyanarayana, Kavitha Chelakara ;
Bolton, Kim .
POLYMER, 2012, 53 (14) :2919-2926
[9]   Phase transformation to β-poly(vinylidene fluoride) by milling [J].
Esterly, DM ;
Love, BJ .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2004, 42 (01) :91-97
[10]   Positive Temperature Coefficient Properties of Multiwall Carbon Nanotubes/Poly(vinylidene fluoride) Nanocomposites [J].
Jiang, S. L. ;
Yu, Y. ;
Xie, J. J. ;
Wang, L. P. ;
Zeng, Y. K. ;
Fu, M. ;
Li, T. .
JOURNAL OF APPLIED POLYMER SCIENCE, 2010, 116 (02) :838-842