Dielectric, ferroelectric, and thermodynamic properties of silicone oil modified PVDF films for energy storage application

Journal Article · Mon Jun 13 00:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4954174· OSTI ID:22590806

Luo, Bingcheng; Wang, Xiaohui; Li, Longtu ^[1]; Sun, Hui ^[2]

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1. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)
2. Aero-Engine Control System Institute, Aviation Industry Corporation of China, Jiangsu, Wuxi 214063 (China)

Silicone oil modified poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-HFP)) films were fabricated by the blending, casting, and hot-molding methods. The dielectric constant was increased for the 7.4 wt. % and 17.0 wt. % silicone oil modified P(VDF-HFP) films, while the dielectric loss for all blend films are decreased. D-E loops of 7.4 wt. % and 17.0 wt. % silicone oil modified P(VDF-HFP) films become slimmer than the pristine P(VDF-HFP) films. The maximum discharged energy density of 10.3 J/cm{sup 3} was obtained in 7.4 wt. % silicone oil modified P(VDF-HFP) films at the external electric field of 398 kV/mm. The Gibbs energy, miscibility, and phase behavior of binary mixture of P(VDF-HFP) silicone oil were investigated using molecular simulations and the extended Flory–Huggins model revealing favorable interactions and compatibility between P(VDF-HFP) and silicone oil.

• OSTI ID: 22590806
• Journal Information: Applied Physics Letters, Vol. 108, Issue 24; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BINARY MIXTURES
CASTING
ELECTRIC FIELDS
ENERGY DENSITY
ENERGY STORAGE
FERROELECTRIC MATERIALS
FILMS
FLUORINATED ALIPHATIC HYDROCARBONS
OILS
PERMITTIVITY
POLYVINYLS
SILICONES
THERMODYNAMIC PROPERTIES