Green aqueous modification of fluoropolymers for energy storage applications

Enhanced dielectric and energy storage density induced by surface-modified BaTiO3 nanofibers in poly(vinylidene fluoride) nanocomposites

“…Polymer capacitors have some advantages such as fast charge/discharge (o 1 μs), high working voltage, simplified processing and low cost [4][5][6][7][8][9]. According to the definition of the energy-storage density of dielectric materials U ¼ R EdD (where E is the applied electric field and D is the electric displacement), obtaining a high energy-storage density in polymer dielectric materials requires a large electric displacement (dielectric constant) and high breakdown strength.…”

Effect of silane coupling agent on the morphology, structure, and properties of poly(vinylidene fluoride–trifluoroethylene)/BaTiO3 composites

“…It is therefore desirable to increase the relative permittivity of VDF based polymers, maintaining low dielectric losses and high breakdown field. With this purpose, copolymerization of electron beam irradiated PVDF with several co-monomers was successfully performed, leading to copolymers with improved dielectric properties [5][6][7]. Another possible route is the development of nanocomposite materials [4]; both fillers with high permittivity, as e.g.…”

Construction of a high-performance magnetic enzyme nanosystem for rapid tryptic digestion

“…However, after coating with the PDA polymer shell, the intensity of these characteristic bands decreased, while two new broad bands around 1355 cm −1 and 1577 cm −1 are present in the Raman spectrum. They are characteristic bands of polydopamine, which can be attributed to the deformation of the catechol group39. It should be noted that catechol groups serve as active sites for the grafting of targets, and therefore the high abundance of residual catechol groups would contribute to the highly efficient immobilization of trypsin molecules.…”