Novel anti-fouling polyethersulfone/polyamide 66 membrane preparation for air filtration by electrospinning

Cao, Jinshan; Cheng, Zhiqiang; Kang, Lijuan; Zhang, Yingying; Zhao, Xiaodong; Zhao, Shengzhe; Gao, Bo

doi:10.1016/j.matlet.2017.01.037

Cited by 29 publications

(11 citation statements)

References 21 publications

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“…[ 22,23 ] Up to now, the most reported methods for NFs fabrication focused on electrospinning, melt spinning, [ 24 ] centrifugal spinning, [ 25,26 ] and wet spinning. [ 27 ] Among them, electrospinning technique as one of the most efficient and attractive methods has been extensively investigated for various applications, such as tissue engineering, [ 28 ] filtration, [ 29–31 ] catalysts, [ 32 ] and wearable flexible display. [ 33,34 ] However, the conventional electrospinning technique is driven by the external high‐voltage electrostatic field, making it difficult to precisely control the morphologies and orientation of NFs.…”

Section: Figurementioning

confidence: 99%

Robust Nanofiber Films Prepared by Electro‐Microfluidic Spinning for Flexible Highly Stable Quantum‐Dot Displays

Xie

Cui

Cheng

et al. 2020

Adv Elect Materials

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Quantum dot (QD)‐based liquid crystal displays (LCDs) are emerging as a new generation of LCDs due to their good performance. However, the QD fluorescent materials in LCDs are vulnerable to water and high temperatures, severely limiting their practical and long‐term use. Here, flexible and ultrastable QD‐based color‐converting films for LCD backlights are fabricated using robust poly(styrene‐methyl‐methacrylate‐acrylic acid) (poly(St‐MMA‐AA)) nanoparticle/polyamide 66 nanofiber (NPs@PA66) film with unique fiber–particle–fiber microstructure as protective substrate. Through an emerging strategy called electro‐microfluidic spinning technology (EMST), the nanofiber film not only exhibits excellent flexibility but also remarkably improves the mechanical property via the in situ particle‐mediated enhancement mechanism. An LCD backlight using the NPs@PA66 nanofiber film as QD loading substrate shows a wide color gamut of 116% and long‐term fluorescence stability under high temperature of 200 °C. More importantly, the fluorescence lifetime of NPs@PA66/QDs backlight reaches up to ≈64500 h, ≈22 times higher than that using encapsulated sandwiched polyethylene terephthalate (PET) QD film. These findings offer a promising method toward high‐strength nanofiber manufacturing, high‐stability flexible electronics and optoelectronic display devices.

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Section: Figurementioning

confidence: 99%

Robust Nanofiber Films Prepared by Electro‐Microfluidic Spinning for Flexible Highly Stable Quantum‐Dot Displays

Xie

Cui

Cheng

et al. 2020

Adv Elect Materials

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“…[ 7,8 ] However, the foremost disadvantages of the PES membrane material are inferior mechanical strength and fouling property, lower hydrophilicity, shorter membrane lifetime, and lower thermal decomposition temperature. [ 9–11 ] Therefore, several research groups from both academia and industry have been working on development of novel PES‐based composite materials with improved membrane properties. Earlier, researchers have been explored different approaches including blending with hydrophilic polymers, [ 12 ] grafting with hydrophilic monomer or short ligand chains, [ 13,14 ] inclusion of hydrophilic particles, [ 15 ] etc.…”

Section: Introductionmentioning

confidence: 99%

Functionalized‐graphene reinforced polyethersulfone nanocomposites with improved physical and mechanical properties

et al. 2020

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We have explored graphene oxide (GO) and sulfonic acid-functionalized graphene oxides (GO SO 3 H) as efficient reinforcements to improve the performances of the polyethersulfone (PES). In contrast to GO, the numerous terminal SO 3 − groups in GO SO 3 H nanosheets not only promoted the filler dispersion in PES matrix, but also formed strong interfacial adhesion via Hbonding and dipole-dipole interactions. The tensile strength of PES was enhanced by around 3-folds and 5-folds upon incorporation 5 wt% GO and GO SO 3 H nanosheets, respectively. The improvement of tensile modulus of PES is considerably higher with GO SO 3 H nanosheets compared to GO. The superior tensile properties of the PES/GO SO 3 H nanocomposites could be ascribed to the better dispersion of GO SO 3 H nanosheets and the efficient stress transfer between PES matrix and GO SO 3 H nanosheets, which is well supported by X-ray diffraction and morphological analyses. The loading capacity of the GO SO 3 H was found be higher than that of GO. The dc conductivity of the PES/GO SO 3 H nanocomposites was recorded greater than that of the GO-reinforced nanocomposites. The thermo-oxidative stability of the PES matrix was substantially improved upon inclusion of both the GO and GO SO 3 H, but the GO SO 3 H showed better effects. Overall, the as-prepared PES/GO SO 3 H hybrid nanocomposite can be used as potential material in different membrane applications.

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“…It is therefore proposed to prepare nanofibers of the same material on large grids substrates, while decreasing the spinning distance to ensure that the residual solvent bonds and welds the grids and the nanofibers. At the same time, multiple functions of nanofiber such as light transmission, anti‐mite, and hydrophobic could be achieved by adjusting preparation technology …”

Section: Introductionmentioning

confidence: 99%

High performance anti‐smog window screens via electrospun nanofibers

Zhang

et al. 2019

J of Applied Polymer Sci

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Scientific studies clearly link air pollution with adverse effects on human health, which includes reduction of cognitive abilities. Hence quality indoor air is essential in rapidly urbanizing societies. The aim of this research work is to develop anti-smog, air permeable, water-proof, and transparent window screens suitable for natural ventilation. For this purpose, we bonded polyethylene terephthalate (PET) nanofibers on PET grids by electrospinning method with relative near spinning distance. During the process, the incomplete solvent evaporation of the collected jet could enhance the bonding of the PET nanofibers to the PET grids. The experimental results showed that the PET nanofibers had a thick deposition at the yarn edge of the PET grids, which also increased the bonding area between the PET nanofibers and the grids. At the same time, PET nanofibers had a thin deposition between the gaps of the PET grids, which not only increased the number of micron-nano-sized holes but also increased the light transmittance of the window screen. After filtration test for 5 h, the PM2.5 filtration efficiency of this anti-smog window screen was high as to 87% and the PET nanofiber window screen still maintained high light transmittance and superhydrophobicity. This research work is a promising way to prepare anti-smog window screens.

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Novel anti-fouling polyethersulfone/polyamide 66 membrane preparation for air filtration by electrospinning

Cited by 29 publications

References 21 publications

Robust Nanofiber Films Prepared by Electro‐Microfluidic Spinning for Flexible Highly Stable Quantum‐Dot Displays

Robust Nanofiber Films Prepared by Electro‐Microfluidic Spinning for Flexible Highly Stable Quantum‐Dot Displays

Functionalized‐graphene reinforced polyethersulfone nanocomposites with improved physical and mechanical properties

High performance anti‐smog window screens via electrospun nanofibers

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