Applied-voltage dependence on conductometric track etching of poly(vinylidene fluoride) films

Nuryanthi, Nunung; Yamaki, Tetsuya; Koshikawa, Hiroshi; Asano, Masaharu; Sawada, Shin–ichi; Hasegawa, Shin; Maekawa, Yasunari; Katsumura, Yosuke

doi:10.1016/j.nimb.2013.05.035

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…As a result, some distinctive properties of the PVDF membranes were destroyed [252]. Consequently, moderate etching conditions, such as a pure alkaline solution at high temperature without any oxidant additives, gained more popularity in recent years [252,254].…”

Section: Methods Of Preparationmentioning

confidence: 99%

A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

2019

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Porous polymeric membranes have emerged as the core technology in the field of separation. But some challenges remain for several methods used for membrane fabrication, suggesting the need for a critical review of the literature. We present here an overview on porous polymeric membrane preparation and characterization for two commonly used polymers: polysulfone and poly (vinylidene fluoride). Five different methods for membrane fabrication are introduced: non-solvent induced phase separation, vapor-induced phase separation, electrospinning, track etching and sintering. The key factors of each method are discussed, including the solvent and non-solvent system type and composition, the polymer solution composition and concentration, the processing parameters, and the ambient conditions. To evaluate these methods, a brief description on membrane characterization is given related to morphology and performance. One objective of this review is to present the basics for selecting an appropriate method and membrane fabrication systems with appropriate processing conditions to produce membranes with the desired morphology, performance and stability, as well as to select the best methods to determine these properties.

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Section: Methods Of Preparationmentioning

confidence: 99%

A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

2019

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“…To create precisely-controlled nanopores, researchers prepare membranes using swift heavy ions with kinetic energies in the MeV-GeV range. [10][11][12][13][14][15][16][17] In this method, a thin base polymer film is irradiated with swift heavy ions to form cylindrical severely damaged zones along each ion trajectory, and then these so-called ion tracks are chemically etched out to create the penetrating one-dimensional nanopores. The pore size can be widely controlled by changing the types of ions, their kinetic energy, etching reagent, temperature and time.…”

Section: Introductionmentioning

confidence: 99%

Computer simulation to predict size distribution of track-etched nanopores

Sawada¹

2022

Jpn. J. Appl. Phys.

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Track-etched nanoporous membranes prepared by swift heavy ion irradiation are promising for separation processes such as water purification. However, one drawback is that multiple pores are undesirably formed by pore overlapping to reduce separation performance. The techniques for predicting the size and amount of multiple pores in detail are still underdeveloped, which hinders the precise membrane design. In this study, a computer simulation program was developed to predict the size distribution of the track-etched pores. The program generates a number of single pores on the virtual grid plane to simulate random ion bombardment, finds multiple pores containing several single pores, and determines the multiple pore size by counting the inside grid points. All the multiple pores are categorized into different size classes, and the areal percentage occupied by the pores belonging to each size class is estimated. The simulation algorithm and the results of a model case simulation were described.

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Control of the size of etchable ion tracks in PVDF – Irradiation in an oxygen atmosphere and with fullerene C60

Kitamura

Yamaki

Yuri

et al. 2019

Nuclear Instruments and Methods in Physics Research Section B:

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Applied-voltage dependence on conductometric track etching of poly(vinylidene fluoride) films

Cited by 3 publications

References 22 publications

A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

A Review on Porous Polymeric Membrane Preparation. Part I: Production Techniques with Polysulfone and Poly (Vinylidene Fluoride)

Computer simulation to predict size distribution of track-etched nanopores

Control of the size of etchable ion tracks in PVDF – Irradiation in an oxygen atmosphere and with fullerene C60

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