Post-electrospinning thermal treatments on poly(4-methyl-1-pentene) nanofiber membranes for improved mechanical properties

Jatoi, Abdul Wahab; Lee, Hoik; Wei, Kai; Nagaishi, Tomoki; Khatri, Zeeshan; Behera, B.K.; Kim, Kyu-Beom; Kim, Ick Soo

doi:10.1007/s00289-017-2004-4

Cited by 19 publications

(12 citation statements)

References 36 publications

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“…Generally, a thermal treatment is used to bond the electrospun nanofibers. Thermal treatment of nanofibers to improve the crystallinity and mechanical properties of various polymers, such as poly(vinylidene fluoride), poly(4-methyl-1-pentene), polyester, and PEO, has recently been reported [11,12,13,14]. For instance, Bao et al [14] studied the morphology of PEO nanofibrous membranes either with or without multiwall carbon nanotubes thermally bonded at temperatures ranging from 60 to 64 °C.…”

Section: Introductionmentioning

confidence: 99%

Effect of Thermal Treatment on Crystallinity of Poly(ethylene oxide) Electrospun Fibers

et al. 2019

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Post-process thermal treatment of electrospun fibers obtained from poly(ethylene oxide) (PEO) water and methanol solutions was examined. PEO fibers from methanol solution showed larger diameters as observed by scanning electron microscopy. Fibers both from water and methanol solutions exhibited a significant dimensional stability and surface cracking during the specific exposure time after thermal treatments at 40, 50, and 60 °C. Changes in crystallinity after the thermal treatment were studied by wide-angle X-ray diffraction. The kinetics of secondary crystallization were positively influenced by the as-processed level of the amorphous phase and temperature of thermal treatment. Samples treated at 60 °C were degraded by thermooxidation within the time.

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Section: Introductionmentioning

confidence: 99%

Effect of Thermal Treatment on Crystallinity of Poly(ethylene oxide) Electrospun Fibers

et al. 2019

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“…The observed increment of T g is most likely indicative of the cross-linking reaction induced by the performed thermal treatment. 57,58 For what concerns the second endothermic peak detectable at around 60 °C, it is instead related to the melting process of PEO. 59 However, the cross-linked-washed sample is characterized by a significant decrease in the peak area with respect to the as-prepared one, hence suggesting the partial removal of the carrier polymer from the fabricated membranes due to its high solubility in aqueous environments.…”

Section: Resultsmentioning

confidence: 99%

Composite Water-Borne Polyurethane Nanofibrous Electrospun Membranes with Photocatalytic Properties

Alberti

Dodero

Sartori

et al. 2021

ACS Appl. Polym. Mater.

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Increasing water pollution and the lack of largescale purification processes pose a great environmental burden. In the present work, water-borne polyurethane composite membranes containing TiO 2 active particles are prepared via a single-step electrospinning procedure by using water as the unique solvent. The mats are then explored as photocatalytic platforms for wastewater treatment. Despite the fact that the amount of embedded TiO 2 is found to influence the nanofiber dimension (i.e., 540−840 nm), the fabricated mats are generally characterized by self-standing nature, high porosity, marked thermal stability, and excellent mechanical resistance. TiO 2 particles are proved to endow the composite membranes with photocatalytic features when irradiated with solar light, giving marked adsorption ability and abatement capacity. In addition, mat reusability is demonstrated over five cycles showing no activity loss. Due to their low cost, great efficiency, and high fabrication rate, the proposed composite mats represent a promising class of recyclable filtering materials.

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“…[ 32 ] In addition, post‐treatment technology has a great influence on the mechanical properties of the fiber. Heat treatment, [ 33 ] heat‐press‐treated, [ 34 ] protective gas of inert gas [ 26 ] and adjustment of the electric field in melt electrospinning [ 32 ] are effective methods to further improve the crystallinity and mechanical properties of electrospinning PPS fibers.…”

Section: Results and Disscussionmentioning

confidence: 99%

Melt differential electrospinning of polyphenylene sulfide nanofibers for flue gas filtration

Chen

Liu

Deng³

et al. 2020

Polymer Engineering & Sci

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Polyphenylene sulfide (PPS) nanofibers have broad application prospects in high temperature dust removal, high temperature oil-water separation, radiation protection, and other fields. PPS nanofibers were prepared by melt differential electrospinning without any other additives, which ensures the excellent properties of PPS fibers. The effects of spinning parameters (spinning voltage, spinning distance, spinning temperature) on the morphology of PPS fibers were systematically studied, and the average diameter of PPS fibers with 1.28 μm was obtained under the optimum conditions (spinning distance of 6 mm, temperature of 310 C and spinning voltage of 35 kV). The effect of spinning voltage on the crystallinity and thermal stability of the fiber was analyzed. Finally, the filtration efficiencies of the commercial dust-proof filter bags and the obtained PPS fibers with the same weight were compared. It was demonstrated that filtration efficiency of the obtained PPS fibers with 186 g/cm 2 reached up to 99.95%. This study aims to provide a new idea for green industrial manufacturing and application of electrospinning PPS nanofibers.

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Post-electrospinning thermal treatments on poly(4-methyl-1-pentene) nanofiber membranes for improved mechanical properties

Cited by 19 publications

References 36 publications

Effect of Thermal Treatment on Crystallinity of Poly(ethylene oxide) Electrospun Fibers

Effect of Thermal Treatment on Crystallinity of Poly(ethylene oxide) Electrospun Fibers

Composite Water-Borne Polyurethane Nanofibrous Electrospun Membranes with Photocatalytic Properties

Melt differential electrospinning of polyphenylene sulfide nanofibers for flue gas filtration

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