Synergistic effect of welding electrospun fibers and MWCNT reinforcement on strength enhancement of PAN–PVC non-woven mats for water filtration

Namsaeng, Janthana; Punyodom, Winita; Worajittiphon, Patnarin

doi:10.1016/j.ces.2018.09.019

Cited by 41 publications

(30 citation statements)

References 42 publications

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“…This is mainly due to the decrease in the viscosity and the increase in conductivity of the spinning solution after ultrasonic treatment. The increasing of solution conductivity can increase the surface charge of the polymer jet, which significantly promotes the stretching of the polymer jet during the flight to the collection plate, resulting in a reduction in nanofiber diameter [38] . In addition, Fig.…”

Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic degradation of organic dyes by ultrasonic-assisted electrospray TiO2/graphene oxide on polyacrylonitrile/β-cyclodextrin nanofibrous membranes

Zhang

Lan

et al. 2021

Ultrasonics Sonochemistry

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Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic degradation of organic dyes by ultrasonic-assisted electrospray TiO2/graphene oxide on polyacrylonitrile/β-cyclodextrin nanofibrous membranes

Zhang

Lan

et al. 2021

Ultrasonics Sonochemistry

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“…Another study demonstrated the enhancement of mechanical strength of electrospun polyacrylonitrile -poly(vinyl chloride) (PVC) nanofiber mats by welding the fibers at junction points and reinforcing with multi-walled carbon nanotubes for pressure-driven particulate water filtration. 19 Up to 314% increase in tensile strength was achieved.…”

Section: Introductionmentioning

confidence: 97%

Investigation of mechanical properties of electrospun poly (vinyl chloride) polymer nanoengineered composite

Tarus

Fadel

Al-Oufy

et al. 2020

Journal of Engineered Fibers and Fabrics

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Nanofiber membranes are extensively used in ultra- and micro-filtration purposes due to their high surface-to-volume ratio. However, nanofiber membranes do not have adequate strength to withstand forces acting on the filter surface, especially when using very low porosity membranes. In this study, PVC nanofiber mats and nanofiber composite membranes were fabricated through electrospinning and solvent casting technology. The membranes were characterized using scanning electron microscopy (SEM), porosimetry, and tensile strength tests. Analysis indicated that electrospun mats contain varying pore sizes (nano to micro) whose frequencies within the mat vary with fiber diameter. It was also established that mats fabricated from low solution concentration contain the largest percentage of pores. The mats’ tensile strength varied with fiber packing density, fiber assembly, and the density of fiber-to-fiber contact points. The tensile properties of the nanofiber composite membranes were found to be between those of the constituents and changed with change in the nanofiber layer thickness. The fabricated nanofiber composite membranes are intended for use in applications such as air ultra-filtration, acoustic filtration etc. The high porosity and small mesh pore size of electrospun nanofiber mats allow for removal of ultra-fine particles or microbes from contaminated air, water or other media.

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“…Nevertheless, there are still some shortcomings of PMIA nanofibers to be conquered, such as low production efficiency, poor spinnability, low strength, and so on. Carbon nanotubes (CNTs), especially carboxylic multi‐walled carbon nanotubes (MWCNTs), have good mechanical properties, and composites made of CNTs and other engineering materials exhibit excellent strength, elastic modulus, and fatigue resistance, effectively improving the properties of composites 27–30. For instance, carbon nanotubes reinforced electrospun polyacrylonitrile (PAN) fibers are one of the successful representatives 31.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon nanotubes (CNTs), especially carboxylic multiwalled carbon nanotubes (MWCNTs), have good mechanical properties, and composites made of CNTs and other engineering materials exhibit excellent strength, elastic modulus, and fatigue resistance, effectively improving the properties of composites. [27][28][29][30] For instance, carbon nanotubes reinforced electrospun polyacrylonitrile (PAN) fibers are one of Here, highly-oriented poly(m-phenylene isophthalamide)/polyacrylonitrile multi-walled carbon nanotube (PMIA/PAN-MWCNT) composite nanofiber membranes with excellent mechanical strength and thermal stability are successfully produced using electrospinning. It is demonstrated that the cooperation of multi-walled carbon nanotubes (MWCNT) and high-speed rotating collection is beneficial to the acquisition of highly oriented fibers and effectively improves the mechanical strength of the membrane along the orientation direction.…”

mentioning

confidence: 99%

Fabrication and Characterization of Highly Oriented Composite Nanofibers with Excellent Mechanical Strength and Thermal Stability

Yang

Zhang

et al. 2020

Macro Materials & Eng

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Here, highly‐oriented poly(m‐phenylene isophthalamide)/polyacrylonitrile multi‐walled carbon nanotube (PMIA/PAN‐MWCNT) composite nanofiber membranes with excellent mechanical strength and thermal stability are successfully produced using electrospinning. It is demonstrated that the cooperation of multi‐walled carbon nanotubes (MWCNT) and high‐speed rotating collection is beneficial to the acquisition of highly oriented fibers and effectively improves the mechanical strength of the membrane along the orientation direction. Specifically, the tensile stress of poly(m‐phenylene isophthalamide)/polyacrylonitrile (PMIA/PAN) membrane is enhanced significantly from 10.6 to 20.7 MPa, benefiting from the highly oriented alignment of the fibers as well as the reinforcing effect of MWCNTs on the fibers. Furthermore, the stressing process of single fiber and fiber aggregates is carefully simulated, and the influence of MWCNTs on the mechanical properties of PMIA/PAN‐MWCNT membranes is analyzed comprehensively, providing a meaningful auxiliary means for the study of mechanical properties. In addition, the composite nanofiber membrane has the advantages of both PMIA and PAN, possessing high temperature resistance, flame‐retardancy, and chemical stability, for an ideal high‐temperature material. In short, the as‐prepared PMIA/PAN‐MWCNT composite membrane with excellent comprehensive property emerges a promising application in many fields, especially in high‐tech.

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Synergistic effect of welding electrospun fibers and MWCNT reinforcement on strength enhancement of PAN–PVC non-woven mats for water filtration

Cited by 41 publications

References 42 publications

Enhanced photocatalytic degradation of organic dyes by ultrasonic-assisted electrospray TiO2/graphene oxide on polyacrylonitrile/β-cyclodextrin nanofibrous membranes

Enhanced photocatalytic degradation of organic dyes by ultrasonic-assisted electrospray TiO2/graphene oxide on polyacrylonitrile/β-cyclodextrin nanofibrous membranes

Investigation of mechanical properties of electrospun poly (vinyl chloride) polymer nanoengineered composite

Fabrication and Characterization of Highly Oriented Composite Nanofibers with Excellent Mechanical Strength and Thermal Stability

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