Microfiber Nonwovens as Potential Membranes

Kiyak, Yasar; Mazé, Benoît; Pourdeyhimi, Behnam

doi:10.1080/15422119.2018.1479968

Cited by 14 publications

(4 citation statements)

References 144 publications

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“…15 Alternatively, as a type of traditional brous product, nonwoven materials have exhibited excellent prospects in the preparation of dyeing wastewater treatment materials due to their advantages of high production efficiency, large output, low cost, superior processability, and structure controllability. 16,17 Up to the present, a series of nonwoven-based adsorbents have been developed. For instance, Haiji et al graed acrylic acid on the polypropylene nonwovens activated with oxygen plasma, and the modied nonwovens showed high adsorption properties for cationic dyes in organic wastewater.…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of composite cellulose fibrous materials for efficient and consecutive dyeing wastewater treatment

Xie

Wang

et al. 2022

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Facile fabrication of composite cellulose fibrous materials for efficient and consecutive dyeing wastewater treatment

Xie

Wang

et al. 2022

RSC Adv.

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“…Therefore, modeling and characterization of fibrous structures and respective properties are of great importance for design and fabrication of these webs with given parameters. Typical characteristics defining a porous network is average pore size, poresize distribution, pore shape, total pore surface area, total pore volume, porosity, tortuosity, fabric density, pore connectivity and areal number density of pores [8].…”

Section: Introductionmentioning

confidence: 99%

Effect of microstructure on porosity of random fibrous networks

Sozumert

Kiyak

Demirci

et al. 2020

The Journal of The Textile Institute

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Porosity of fibrous networks plays an important role in many processes, especially in filtration and separation applications. The paper aims to statistically analyze characteristics of porosity for random fibrous networks employing analytical and numerical approaches. An analytical model evaluating the number of pores related to microstructural parameters (e.g., fiber diameter) is proposed and validated with a numerical approach. An image processing of numerically generated fibrous networks was first performed to reveal pore-size distributions and then to calculate the number of pores with high accuracy.The obtained analytical results are in good agreement with those from image analysis based numerical realizations of fibrous networks. Additionally, analyses on orientation and crimp of fibers and their effects on parameters of porosity were carried out. These studies indicate that as more fibers are aligned in a principal direction, the number of pores decreases, and this induces the increase in the average pore size.The investigations also demonstrate that crimp does not affect pore characteristics in random distributions considerably; however, the number of pores decreases with fiber crimp as alignment increases. Generally, this study demonstrates vividly that characteristics of porosity such as areal number density of pores, mean pore size and its distribution are governed by microstructure of fibrous networks.The developed approach based on image analysis is capable of high-accuracy, assessment of distribution of pore size and number of pores in a random fiber network.

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“…This filter captures PMs mainly based on physical barriers and adhesion. However, it is typically thick and suffers from heaviness, bulkiness, and opacity. ,, Meanwhile, these two filters inevitably have a compromise between removal efficiency and air permeability . Nature offers a simple yet efficient idea associated with filter assembly: a continuous ultrafine fibrous structure can achieve substantial improvements in material utilization and the resultant properties. − This effect is vividly demonstrated in cases such as spider webs, dragonfly wings, and honeycombs, which possess a fibrous network but are structurally robust. , Especially, dusty spider webs in nature further confirm their capability to capture ultrafine PMs .…”

mentioning

confidence: 99%

“…However, it is typically thick and suffers from heaviness, bulkiness, and opacity. 11,14,15 Meanwhile, these two filters inevitably have a compromise between removal efficiency and air permeability. 16 Nature offers a simple yet efficient idea associated with filter assembly: a continuous ultrafine fibrous structure can achieve substantial improvements in material utilization and the resultant properties.…”

mentioning

confidence: 99%

Highly Efficient, Transparent, and Multifunctional Air Filters Using Self-Assembled 2D Nanoarchitectured Fibrous Networks

et al. 2019

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Particulate matter (PM) pollution is a significant burden on global economies and public health. Most present air filters are heavy, bulky, and nontransparent and typically have inevitable compromise between removal efficiency and air permeability. We report a scalable strategy to create ultralight, thin, rubbery, self-assembled nanoarchitectured networks (nanonetworks) with high-efficiency and transparency (ULTRA NET) as air filters using capacitive-like electronetting technology. By controlling the ejection, deformation, and phase separation of charged droplets from a Taylor cone, our approach allows continuously welded two-dimensional nanonetworks (∼20 nm fiber diameter) to assemble into filters on a large scale. The resulting ULTRA NET filters exhibit integrated properties of desirable pore structure yet maintaining strikingly low thickness (∼350 nm) and free-standing capability, 99.98% removal efficiency, and <0.07% of atmosphere pressure for PM0.3 filtration at ∼85.6% transmittance, which enable them to serve as a multifunctional filter against PMs either in rigid solid or in soft oil forms and even biohazard pathogens. This work should serve as a source of inspiration for the design and development of high-performance fibrous materials for various filtration and separation applications.

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Microfiber Nonwovens as Potential Membranes

Cited by 14 publications

References 144 publications

Facile fabrication of composite cellulose fibrous materials for efficient and consecutive dyeing wastewater treatment

Facile fabrication of composite cellulose fibrous materials for efficient and consecutive dyeing wastewater treatment

Effect of microstructure on porosity of random fibrous networks

Highly Efficient, Transparent, and Multifunctional Air Filters Using Self-Assembled 2D Nanoarchitectured Fibrous Networks

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