Spider-net within the N6, PVA and PU electrospun nanofiber mats using salt addition: Novel strategy in the electrospinning process

Barakat, Nasser A.M.; Kanjwal, Muzafar A.; Sheikh, Faheem A.; Kim, Hee Young

doi:10.1016/j.polymer.2009.07.005

Cited by 219 publications

(158 citation statements)

References 27 publications

Supporting

Mentioning

145

Contrasting

Order By: Relevance

“…[17][18][19][20][21] Nano-nets, assembled from net-like structured nanowires with an ultrafine diameter (5-40 nm), exhibit several amazing characteristics, such as an extremely large specific surface area, high porosity and superior mechanical performance, which make these new dimensional materials attractive for intensive research. [18][19][20] Ding et al [18] first observed this type of net-like structure in electrospun nylon-6 and poly(acrylic acid) (PAA) nanofibers, and ascribed the nano-net formation to the fast phase separation of the charged droplets. Composite PU/multiwalled carbon nanotube nanofibrous membranes containing a handful of nano-nets have prepared by Kimmer et al [22] Our previous work has also confirmed that a highly sensitive humidity sensor could be prepared from PAA NFN membranes on the electrodes of quartz crystal microbalances.…”

Section: Introductionmentioning

confidence: 99%

One‐step Electro‐spinning/netting Technique for Controllably Preparing Polyurethane Nano‐fiber/net

Wang

Ding

et al. 2011

Macromol. Rapid Commun.

View full text Add to dashboard Cite

Electro-spinning/netting (ESN) as a cutting-edge technique evokes much interest because of its ability in the one-step preparation of versatile nano-fiber/net (NFN) membranes. Here, a controllable fabrication of polyurethane (PU) NFN membranes with attractive structures, consisting of common electrospun nanofibers and two-dimensional (2D) soap bubble-like structured nano-nets via an ESN process is reported. The unique nanoscaled NFN architecture can be finely controlled by regulating the solution properties and several ESN process parameters. The versatile PU nano-nets comprising interlinked nanowires with ultrathin diameters (5-40 nm) mean that the NFN structured membranes possess several excellent characteristics, such as an extremely large specific surface area, high porosity and large stacking density, which would be particularly useful for applications in ultrafiltration, special protective clothing, ultrasensitive sensors, catalyst support and so on.

show abstract

Section: Introductionmentioning

confidence: 99%

One‐step Electro‐spinning/netting Technique for Controllably Preparing Polyurethane Nano‐fiber/net

Wang

Ding

et al. 2011

Macromol. Rapid Commun.

View full text Add to dashboard Cite

show abstract

“…These structures, which have a fiber diameter of 30-40 nm, although being widely present among fibers, are not homogeneously distributed over the whole nanofiber mat. The formation of such nanowebs has been investigated by Barak at et al [6] by the additions of ionic salts to polymer solutions. The authors concluded that nanowebs formation depends upon the concentration and the ionization of the used salt.…”

Section: Electrospinningmentioning

confidence: 99%

Nanofiber-based filters as novel barrier systems for nanomaterial exposure scenarios

Faccini

Amantia

Vázquez‐Campos

et al. 2011

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Abstract. In this article our latest advances in the development of efficient barrier systems against micro-and nano-particulate materials are presented. Nanofibrous polyamide 6 (PA6) mats were fabricated by electrospinning onto a nonwoven viscose substrate. The influence of electrospinning parameters including solution concentration, viscosity, and conductivity, were studied for the production of nonwovens with different fiber size distribution ranging from 74 to 261 nm in diameters. Moreover, the formation of nanowebs (30-40 nm) which are widely distributed among fibers was observed. By varying several process parameters, membranes with different thickness of the nanofiber layer and therefore air permeability and nanoparticle filtration efficiency were obtained.

show abstract

“…Ding et al 14 introduced electrospun membranes with a nano-net structure from nylon-6 and poly(acrylic acid). Kim et al 15 explained that nano-nets could be produced by adding strong ionic salts to polar polymer solutions, such as PA-6/formic acid solutions. Poly(m-phenylene isophthalamide) (m-aramid) has been widely used in a variety of applications, such as filtration, protective apparel, flame-resistant barriers and electrical insulation because it is a high-performance, aromatic polyamide with good thermal and mechanical stability.…”

Section: Introductionmentioning

confidence: 99%

Super high flux microfiltration based on electrospun nanofibrous m-aramid membranes for water treatment

Kim

et al. 2015

Macromol. Res.

View full text Add to dashboard Cite

The effects of ultrathin fibers using electrospun m-aramid nanofibrous membranes were evaluated to determine their performance as filters for water purification. The M150 membrane (average fiber diameter: 150 nm) was higher air-permeability than the M120 membrane (average fiber diameter: 120 nm). The commercial GSWP filter had much lower air-permeability than the electrospun membranes. The mean flow pore diameters of the electrospun membranes were much larger than the GSWP due to their high air permeabilities. Increased membrane thickness resulted in decreased airpermeability, mean pore size, and largest detected pore size. The M150 and M120 membranes with thickness of 10 m showed approximately 5 times higher water flux than the GSWP filter. However, these membranes surprisingly showed higher particle rejections (99.32% and 99.62%, respectively) in the filtration of 0.2-m PS latex particles compared with the GSWP filter (95.91%). This result indicates that highly branched, ultrafine fibrous structures of the m-aramid nanofibrous membranes contribute to the great increase in the particle rejection efficiency without loss of water flux (or airpermeability). From these results, the electrospun m-aramid nanofibrous membranes are expected to be used as a novel microfilter with a super high flux and high rejection efficiency.

show abstract

Spider-net within the N6, PVA and PU electrospun nanofiber mats using salt addition: Novel strategy in the electrospinning process

Cited by 219 publications

References 27 publications

One‐step Electro‐spinning/netting Technique for Controllably Preparing Polyurethane Nano‐fiber/net

One‐step Electro‐spinning/netting Technique for Controllably Preparing Polyurethane Nano‐fiber/net

Nanofiber-based filters as novel barrier systems for nanomaterial exposure scenarios

Super high flux microfiltration based on electrospun nanofibrous m-aramid membranes for water treatment

Contact Info

Product

Resources

About