نتایج جستجو برای: nanofiber diameter

تعداد نتایج: 115606  

2013
M. Essalhi P. Arribas

The experimental design and response surface methodology (RSM) have been used to develop predictive models for simulation and optimization of electrospun polyvinylidene fluoride non-woven membranes. The objective is to prepare electrospun fibers with small diameters and narrow diameter distribution. The factors considered for experimental design were the polymer dope solution flow rate, the app...

Journal: :Chemical communications 2010
Shengju Wu Fengting Li Yinan Wu Ran Xu Guangtao Li

Novel mesoporous poly(vinyl alcohol)/SiO(2) composite nanofiber membranes functionalized with mercapto groups with diameters of 300-500 nm have been fabricated by a sol-gel electrospinning process; they were highly effective at absorbing Cu(ii) ions from waste water. These nanofiber membranes could be regenerated through acidification.

Journal: :Nanoscale 2015
Byeong Uk Ye Byoung-Joon Kim Jungho Ryu Joo Yul Lee Jeong Min Baik Kihyon Hong

A simple fabrication route for ion gel nanofibers in a triboelectric nanogenerator was demonstrated. Using an electrospinning technique, we could fabricate a large-area ion gel nanofiber mat. The triboelectric nanogenerator was demonstrated by employing an ion gel nanofiber and the device exhibited an output power of 0.37 mW and good stability under continuous operation.

2009
Ebru Mensur Alkoy Canan Dagdeviren Melih Papila

Lead zirconate titanate (PZT) nanofibers are obtained by electrospinning a sol–gel based solution and polyvinyl pyrrolidone (PVP) polymer, and by subsequent sintering of the electrospun precursor fibers. The average diameter of the precursor PZT/ PVP green fibers has increased with the aging of the precursor solution along with an increase in the viscosity. Bead-free uniform green PZT/PVP fiber...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم انسانی 1390

in solvo-hydrothermal method, xrd pattern was indicated presence of intermediate of ammonium octatmolybdate and ammonium tetramolybdate, which were changed to stble phase of ?-moo3 annealing. sem images were indicated nanoparticle with semispheical morphology and tem image was demonstrated nanoparticles with a diameter size of 25nm. also in impregnate method. the xrd pattern was shown high crys...

Journal: :Open ceramics 2023

The aim of this study was the electrospinning zirconia nanofibers without sol-gel precursors. Low-cost Zr-oxide and Zr-carbonate inorganic materials, with high molecular Zr-content compared to methods, were used for precursor formulation. Using a polyvinylpyrrolidone (PVP) polymeric binder, could successfully be synthesised both Zr-sources. effects different parameters investigated stabilize pr...

2016
Chad T. Peterson Chad Thomas Peterson Ruqiang Feng

Nanotechnology and nanomaterials have the potential to revolutionize existing and create entirely new industries. Unique physical, mechanical, chemical, and biological properties of nanomaterials have been extensively documented in the last two decades. However, most nanomaterials are discontinuous in nature, creating problems with their processing and manipulation into devices and raising heal...

2015
Emma‐Rose Janeček Jason R. McKee Cindy S. Y. Tan Antti Nykänen Marjo Kettunen Janne Laine Olli Ikkala Oren A. Scherman

Hybrid nanocomposites were constructed based on colloidal nanofibrillar hydrogels with interpenetrating supramolecular hydrogels, displaying enhanced rheological yield strain and a synergistic improvement in storage modulus. The supramolecular hydrogel consists of naphthyl-functionalized hydroxyethyl cellulose and a cationic polystyrene derivative decorated with methylviologen moieties, physica...

2012
Nagarajan M. Thoppey Russell E. Gorga Jason R. Bochinski Laura I. Clarke

The process of edge electrospinning relies on forming electricfield-induced instabilities (i.e., jets) in a polymer solution bath which act as sources for nanofiber production. As such, it depends on the fundamental interactions between the fluid and the electric field, which are studied in this report as a function of solution parameters (viscosity, surface tension, and conductivity). Over a w...

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