Relaxation dynamics and conductivity in poly(vinylidene fluoride)/graphene oxide composites

被引：0
作者：
Seena, M. [1 ]
Jan, H. [1 ]
Banu, Saira [1 ]
James, Ann Maria [1 ]
Chethan, B. [1 ]
Prasad, V. [1 ]
机构：
[1] Indian Inst Sci, Bangalore 560012, Karnataka, India
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2025年 / 1322卷
关键词：
Dielectric relaxation; Poly (vinylidene fluoride); Graphene oxide; Crystalline phases; ELECTRIC MODULUS; PVDF; TEMPERATURE; BETA; NANOCOMPOSITE; PERFORMANCE; PHASES; ALPHA; FILMS;
D O I：
10.1016/j.molstruc.2024.140314
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：
The alpha(c) relaxation, which originates from the crystalline phase of Poly(vinylidene fluoride), is studied in the composite system of Poly(vinylidene fluoride) and Graphene oxide. PVDF/GO composites were prepared using solvent casting. The crystalline phases in PVDF/GO composites were identified using XRD and quantified using FTIR. The thermal properties were analyzed using DSC, and the crystallization degrees were calculated. The electric modulus formalism is employed to understand the relaxation mechanism with temperature. AC conductivity studies reveal the activation energy for conduction in these composites.
引用
收藏
页数：9
相关论文
共 47 条
[1]   PVDF/CB Composites Prepared by Novel Solvent Casting Method for Low Voltage PTC Temperature Regulation Applications [J].
Acott, Samuel M. ;
Parsons, Tamsin M. ;
Nevell, James M. ;
Perera, Semali P. .
JOURNAL OF APPLIED POLYMER SCIENCE, 2011, 120 (06) :3673-3678
[2]   Study of electrical transport, dielectric and magnetic properties of NiFe2O4-PVDF nanocomposite film [J].
Atta, Shubhadip ;
Haldar, Monalisa ;
Das, Amit Kumar ;
Meikap, Ajit Kumar .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2019, 114
[3]  
Bertolini M.C., 2023, SPE Polym., V4, P143
[4]   Properties and Potential Application of Lead-Free (BaZr0.2Ti0.8O3) and Lead-Based (PbZr0.52Ti0.48O3) Flexible Thick Films [J].
Bobic, Jelena ;
Ilic, Nikola ;
Despotovic, Zeljko ;
Dzunuzovic, Adis ;
Grigalaitis, Robertas ;
Stijepovic, Ivan ;
Stojanovic, Biljana ;
Petrovic, Mirjana Vijatovic .
CRYSTALS, 2023, 13 (08)
[5]   A critical analysis of the α, β and γ phases in poly(vinylidene fluoride) using FTIR [J].
Cai, Xiaomei ;
Lei, Tingping ;
Sun, Daoheng ;
Lin, Liwei .
RSC ADVANCES, 2017, 7 (25) :15382-15389
[6]   An improved Hummers method for eco-friendly synthesis of graphene oxide [J].
Chen, Ji ;
Yao, Bowen ;
Li, Chun ;
Shi, Gaoquan .
CARBON, 2013, 64 :225-229
[7]   Self-polarized ferroelectric PVDF homopolymer ultra-thin films derived from Langmuir-Blodgett deposition [J].
Chen, Shuting ;
Li, Xue ;
Yao, Kui ;
Tay, Francis Eng Hock ;
Kumar, Amit ;
Zeng, Kaiyang .
POLYMER, 2012, 53 (06) :1404-1408
[8]   PVDF-Based Ferroelectric Polymers in Modern Flexible Electronics [J].
Chen, Xin ;
Han, Xu ;
Shen, Qun-Dong .
ADVANCED ELECTRONIC MATERIALS, 2017, 3 (05)
[9]   Piezoelectric β-polymorph formation and properties enhancement in graphene oxide - PVDF nanocomposite films [J].
El Achaby, M. ;
Arrakhiz, F. Z. ;
Vaudreuil, S. ;
Essassi, E. M. ;
Qaiss, A. .
APPLIED SURFACE SCIENCE, 2012, 258 (19) :7668-7677
[10]   High dielectric and breakdown properties obtained in a PVDF based nanocomposite with sandwich structure at high temperature via all-2D design [J].
Feng, Yefeng ;
Wu, Qin ;
Deng, Qihuang ;
Peng, Cheng ;
Hu, Jianbing ;
Xu, Zhichao .
JOURNAL OF MATERIALS CHEMISTRY C, 2019, 7 (22) :6744-6751
12345