Nickel nanoparticles (Ni NPs) supported on Poly(vinylidene fluoride-co-hexafluoropropylene) nanofibers (PVDF-HFP NFs) were successfully synthesized through electrospinning and in-situ reduction of Ni2+ salts into the surface PVDF-HFP NFs to form metallic Ni [email protected] NFs. Different percentages nickel acetate tetrahydrate (NiAc) (10 %, 20 30 40 % wt.) based PVDF-HFP. The formation tiny N...

A novel oxygen selective highly hydrophobic membrane is prepared by non-solvent induced phase separation in which a dextrin-based nanosponge is incorporated into a poly(vinylidene fluoride co-hexafluoropropylene) (PVDF-HFP) matrix. The membrane presents high capability to entrap moisture from air as well as good hydrophobic behaviour. The membrane was assembled in a pouch type Li-air cell, whic...

Herein, a wavelength-selective pyroelectric sensor based on graphene field-effect transistor (gFET) with plasmon-enhanced gate (PG) is reported. The PG gFET (PG-gFET) uses poly(vinylidene fluoride-co-trifluoroethylene) or PVDF-TrFE membrane doped plasmonic nanoparticles as the gate. Gold nanorods (AuNRs) silver (AgNPs) are incorporated into to enhance photothermal conversion efficiency of in sp...

Melting and crystallization of poly(vinylidene fluoride) (PVDF) blended with polyamide 6 (PA6) has been studied by differential scanning calorimetry. The melting of PVDF and PA6 is observed over a small temperature range, i.e. 174 to 181°C and 220 to 230°C, respectively, over the whole blend composition. This observation indicates that PVDF and PA6 are immiscible and do not co-crystallize, alth...

Flexible electrodes play an increasing role for medical applications, such as ECG (electrocardiography) or TENS (Transcutaneous electrical nerve stimulation) due to comfort in use and thus their suitability health monitoring under movement during sport. Polymers, polyvinylidene fluoride (PVDF), are promising the development of fabrication methods materials application cases, stable flexible thi...

Abstract: For increasing the efficiency of omega-3 production, effect span-85 surfactant as a hydrophobic agent (0, 1, 2, 3 and 4 wt%) on formation porous structure in sub-layer PVDF membrane was studied. Also, cross-sectional morphology membranes analyzed using scanning electron microscopy (SEM) surface property evaluated contact angle test. The capacity to concentrate examined by filtration l...

The surface structure and properties of a membrane largely determine its in-service performance during filtration process. Polyvinylidene fluoride (PVDF) hydrophobic is widely used in the separation oily wastewater because mechanical strength, but susceptible to oil fouling, whereas hydrophilic membranes are easily damaged water due their wettability resistant oil. advantages two then combined ...

Pyroelectric detectors are often broadband and require external filters for wavelength-specific applications. This paper reports a tunable, narrowband, lightweight pyroelectric infrared detector built upon flexible membrane of As2S3−Ag−P(VDF-TrFE) with subwavelength grating, which is capable both on-chip filtering photopyroelectric energy conversion. The top surface this hybrid corrugated As2S3...

This paper investigates effects of different additives on morphology and subsequently, separation performance of asymmetric flat sheet Polyvinylidene fluoride (PVDF) membranes to separate CO2 using membrane contractor. Five different additives from different chemical families including Lithium chloride (salt), Polyethylene glycol 400 (polymer), glycerol (weak anti-solvents), methanol...

Wide-angle X-ray scattering in conjunction with pole figure technique was used to study the texture of poly(vinylidene fluoride) (PVDF) α and γ phase crystals in nanolayered polysulfone/poly(vinylidene fluoride) films (PSF/PVDF) produced by layer-multiplying coextrusion. In all as-extruded PSF/PVDF films, the PVDF nanolayers crystallized into the α phase crystals. A large fraction of those crys...