Electrospun nanofibre membrane based transparent slippery liquid-infused porous surfaces with icephobic properties

Taş, Mahmut; Memon, Halar; Xu, Fang; Ahmed, Ifty; Hou, Xianghui

doi:10.1016/j.colsurfa.2019.124177

Cited by 32 publications

(19 citation statements)

References 37 publications

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“…Electrospinning is generally divided into two types: (a) melt electrospinning and (b) solution-based electrospinning. The solution-based electrospinning method stands out because of the fact that nanofibers can be produced from various polymers such as polyacrylonitrile (PAN), poly (vinylidene fluoride) (PVDF), poly(vinyl alcohol) (PVA), polyamide 6,6, polycaprolactone (PCL), poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP), thermoplastic polyurethane (TPU) and that the nanofiber properties can be controlled more easily [11][12][13][14][15][16][17][18][19]. The parameters affecting nanofiber morphology in the solution-based electrospinning method can be listed as temperature, humidity, solution viscosity (polymer concentration), the distance between nozzle and collector electrode, feed rate and the applied potential [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile Nanofiber Optimization as Precursor of Carbon Nanofibers for Supercapacitors

Altın¹,

Bedeloğlu²

2020

Journal of Innovative Science and Engineering (JISE)

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Polyacrylonitrile (PAN) nanofibers are one of the primary precursors in the production of carbon nanofibers. The nanofiber morphology is significantly affected by the process parameters such as polymer concentration, distance, applied voltage and feed rate during the production of PAN nanofibers obtained by the solution-based electrospinning method, and these parameters should be optimized properly. In this study, firstly PAN nanofiber production parameters were optimized, and then homogeneous and thin PAN nanofibers produced in optimum conditions were used as the precursor in the production of carbon nanofibers. PAN nanofibers with a diameter of 233 nm were obtained at 7.5% PAN concentration in N,N-dimethylformamide (DMF), 28 kV applied voltage, 17.5 cm nozzle to collector distance, 2 ml/h feed rate and 500 rpm rotation speed of the aluminum drum. The carbon nanofiber diameters produced after the stabilization and carbonization processes were measured as 200 and 140 nm, respectively. The morphological, chemical and thermal properties of the produced nanofibers were characterized by field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FT-IR), thermogravimetric analyzer (TGA). Carbon nanofibers, which are made from optimized electrospun PAN nanofibers, can be used to construct supercapacitors in future studies.

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Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile Nanofiber Optimization as Precursor of Carbon Nanofibers for Supercapacitors

Altın¹,

Bedeloğlu²

2020

Journal of Innovative Science and Engineering (JISE)

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“…Current research on SLIPS focuses on their use in material science and engineering by harnessing their water‐shedding and icephobic properties for purposes such as anti‐icing in aviation (Tas, Memon, Xu, Ahmed, & Hou, 2020), anti‐wetting in biomedical devices (Wong et al, 2011) and anti‐biofouling in marine engineering (Keller et al, 2019; Xiao et al, 2013). These impacts, however, have not yet been investigated in an environment where SLIPS could occur in soils or sediment and prevent water infiltration to a greater extent than hydrophobicity.…”

Section: Discussionmentioning

confidence: 99%

Slippery liquid‐infused porous surfaces: The effect of oil on the water repellence of hydrophobic and superhydrophobic soils

McCerery

Woodward

McHale

et al. 2020

European J Soil Science

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Soil wettability is important for understanding a wide range of earth system processes, from agricultural productivity to debris flows and sediment fan formation. However, there is limited research considering how soil–water interactions, where the soil grains are naturally hydrophobic, might change in the presence of oil from natural hydrocarbon leakage or oil spills. Here we show how slippery liquid‐infused porous surfaces (SLIPS) apply to hydrophobic soils, by physical modelling of surfaces of different grain sizes and examining their interactions with water before and after impregnation with silicone oil. Using contact and sliding angle measurements and laser scanning fluorescence confocal microscopy, we demonstrate that soil SLIPS can be created with thick oil layers and thin conformal oil layers on median grain sizes of 231 μm and 32 μm, respectively. Until now, SLIPS have only been observed in human‐made materials and biological surfaces. The mechanisms reported here demonstrate that SLIPS can occur in natural granular materials, providing a new mechanism for water‐shedding in soil and sediment systems. Furthermore, the water‐shedding properties may be long lasting as conformal oil layers are stabilized by capillary forces. These results have important implications for understanding soil physics and mechanics where oil is present in a soil, and for agricultural hydrophobicity on shallow slopes. Highlights We model oil contamination on a hydrophobic model soil as a mechanism for creating SLIPS. Soil SLIPS have implications for water‐shedding, oil spill remediation and earth processes. Our model soils exhibit extreme water‐shedding, illustrated by low water droplet sliding angles. This is the first physical modelling observation of SLIPS arising from hydrophobic soil.

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“…A MOOG G403-2053A servo motor was used to measure the ice shear strength tests via a centrifugal method, and the test was performed in an environmental chamber (ALPHA 1550-40H) to simulate the freezing conditions. The measurement method is further detailed in our previous work [26].…”

Section: Centrifugal Methodsmentioning

confidence: 99%

Comparative study on the influence of surface characteristics on de-icing evaluation

et al. 2021

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A comparative study of de-icing evaluation methods was conducted in this work, and their variations in response to surface characteristics were investigated. The mechanical de-icing measurements include centrifugal, push, and tensile methods. The centrifugal and the horizontal push (shear) methods suggested a linear relationship of ice adhesion strength with surface roughness, whereas the tensile (normal) method indicated an inverse curvilinear relationship with contact angle hysteresis. A partial correlation of contact angle hysteresis on the shear-based methods was also indicated over a specified range of surface roughness. Further attempts were also made on 1H,1H,2H,2H-perfluorooctyltriethoxysilane-coated surfaces, and the ice adhesion indicated a clear reduction in the normal de-icing method, whereas the shear-based methods did not show a considerable change in ice adhesion, highlighting their mechanical forces-centric response. Lastly, a further evaluation using a hybrid de-icing method was conducted, to verify the influence of surface characteristics on ice removal involving heating, which demonstrated a partial correlation of energy consumption with the ice adhesion strength over a specified range of surface roughness. The results obtained in this study provide crucial information on the influence of surface characteristics on ice adhesion and offer material-dependent correlations of the popular de-icing evaluation methods. The conclusions could be applied to define an appropriate testing method for the evaluation of icephobic surfaces and coatings. Graphical abstract

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Electrospun nanofibre membrane based transparent slippery liquid-infused porous surfaces with icephobic properties

Cited by 32 publications

References 37 publications

Polyacrylonitrile Nanofiber Optimization as Precursor of Carbon Nanofibers for Supercapacitors

Polyacrylonitrile Nanofiber Optimization as Precursor of Carbon Nanofibers for Supercapacitors

Slippery liquid‐infused porous surfaces: The effect of oil on the water repellence of hydrophobic and superhydrophobic soils

Comparative study on the influence of surface characteristics on de-icing evaluation

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