Water Resistance and Morphology of Electrospun Gelatine Blended with Citric Acid and Coconut Oil

Banner, Jana; Dautzenberg, Maria; Feldhans, Theresa; Hofmann, J. I.; Plümer, Pia; Ehrmann, Andrea

doi:10.14502/tekstilec2018.61.129-135

Cited by 15 publications

(14 citation statements)

References 24 publications

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“…However, the poor mechanical properties of the nanofibres restrict their application in liquid filtration [ 12 , 13 ]. To overcome this problem, various attempts have been made, such as blending of the polymers [ 14 , 15 , 16 , 17 ], using epoxy composites [ 18 ], reinforced with nanomaterials [ 19 , 20 , 21 ], dip-coating [ 22 ], self-reinforcing methods [ 23 ], thermal lamination [ 24 , 25 ], etc. Silicon carbide (SiC) nanofibres were reinforced with an epoxy matrix cured with an anhydride hardener.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of PVDF Nanofibre Multilayers into Functional Structure for Filtration Applications

Roche

Yalçinkaya

2018

Nanomaterials

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Membranes are considered as a promising technology for separation and filtration processes. Here, novel polyvinylidene fluoride (PVDF) nanofibrous multilayer membranes were fabricated by wire-based industrial electrospinning equipment following by a lamination process. The lamination process was optimised under various applied temperature, force of lamination, and lamination time. Air permeability and burst-pressure tests were run to determine the optimum membranes for filtration application. The structures of the prepared membranes were characterised by scanning electron microscopy and pore-size analysis. The hydrophilic properties of the membranes were evaluated using water contact angle measurement, and the mechanical strength of the membranes was analysed. Air and water filtration tests were run to find the possible application of prepared membranes. The air filtration results showed that membranes had high filtration efficiencies: Over 99.00% for PM2.5, and PM0.1. The water filtration results indicated that permeability of the membranes changed from 288 to 3275 L/m2hbar. The successful preparation of such an interesting material may provide a new approach for the design and development of electrospun filter membranes.

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Section: Introductionmentioning

confidence: 99%

Incorporation of PVDF Nanofibre Multilayers into Functional Structure for Filtration Applications

Roche

Yalçinkaya

2018

Nanomaterials

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“…Amongst them, however, only few concentrate on nanofiber mats produced by electrospinning [ 24 , 25 ]. This method allows for creation of nanofiber mats from diverse polymers or polymer blends, amongst them several biopolymers [ 26 , 27 , 28 , 29 ], man-made polymers [ 30 , 31 ], or blends with inorganic compounds [ 32 , 33 , 34 ]. Such electrospun nanofiber mats are used for a broad range of applications, from wastewater filters [ 35 ] to catalyzers [ 36 ] to medical wound dressings or cell growth substrates [ 37 , 38 , 39 , 40 ] to precursors for carbon nanofibers which may be included in polymers to enhance their mechanical properties [ 41 , 42 , 43 ].…”

Section: Introductionmentioning

confidence: 99%

Dye-Sensitized Solar Cells with Electrospun Nanofiber Mat-Based Counter Electrodes

et al. 2018

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Textile-based dye-sensitized solar cells (DSSCs) can be created by building the necessary layers on a textile fabric or around fibers which are afterwards used to prepare a textile layer, typically by weaving. Another approach is using electrospun nanofiber mats as one or more layers. In this work, electrospun polyacrylonitrile (PAN) nanofiber mats coated by a conductive polymer poly(3,4-ethylenedioxythiopene) polystyrene sulfonate (PEDOT:PSS) were used to produce the counter electrodes for half-textile DSSCs. The obtained efficiencies were comparable with the efficiencies of pure glass-based DSSCs and significantly higher than the efficiencies of DSSCs with cotton based counter electrodes. The efficiency could be further increased by increasing the number of PEDOT:PSS layers on the counter electrode. Additionally, the effect of the post treatment of the conductive layers by HCl, acetic acid, or dimethyl sulfoxide (DMSO) on the DSSC efficiencies was investigated. Only the treatment by HCl resulted in a slight improvement of the energy-conversion efficiency.

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“…Diverse polymers can be electrospun, e.g. biopolymers such as poly(ethylene oxide) [4], gelatine [6] or chitosan [7], but also other polymers such as polycaprolactone [8], poly(vinyl alcohol) [9] or polyacrylonitrile (PAN) [10], as well as blends with diff erent polymers and nonpolymeric nanoparticles [11]. PAN is of high interest for electrospinning not only as it can be electrospun from the low-toxic solvent dimethyl sulfoxide (DMSO), but also as it is a typical precursor for carbon nanofi bres [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Chemical and Morphological Modification of PAN Nanofibrous Mats with Addition of Casein after

Diestelhorst¹,

Mance²,

Mamun³

et al. 2020

TEK

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Electrospun polyacrylonitrile (PAN) nanofi brous mats belong to typical precursor materials of carbon nanofibres. They have, however, the problem that they need to be fi xed or even stretched during stabilisation and ideally also during carbonisation in order to avoid undesired conglutinations and deformations of the original nanofi bre morphology, resulting in brittle behaviour of the macroscopic nanofi brous mat, which impedes several applications. In an earlier investigation, blending PAN with ZnO was shown to increase fi bre diameters and lead to unproblematic stabilisation and carbonisation of nanofi brous mats. ZnO, on the other hand, may have a negative impact on biotechnological applications such as tissue engineering. Here, we thus report on the morphological and chemical modifi cations due to blending PAN electrospinning solutions with diff erent amounts of casein. By optimising the PAN : casein ratio, relatively thick, straight nanofibres are obtained, which can be stabilised and carbonised unambiguously, without the well-known negative impact on cell adhesion due to the addition of ZnO.Elektropredene nanovlaknate koprene iz poliakrilonitrila (PAN) predstavljajo tipične prekurzorje za izdelavo ogljikovih nanovlaken. Med stabilizacijo in po možnosti tudi med karbonizacijo morajo biti pritrjene, da bi lahko preprečili neželeno zlepljenje in deformacijo prvotne nanovlaknate oblike, ki vodi v krhkost makroskopske nanovlaknate koprene in zmanjša možnosti njene uporabe. V predhodni raziskavi je bilo ugotovljeno, da mešanje PAN z ZnO vpliva na povečanje premera vlaken in omogoči stabilizacijo ter karbonizacijo nanovlaknatih kopren. ZnO pa lahko po drugi strani negativno vpliva na biotehnološke aplikacije, kot je tkivni inženiring. V članku so zato predstavljene morfološke in kemijske modifi kacije, ki so bile dosežene z uporabo predilnih raztopin za elektropredenje PAN z dodatkom različnih količin kazeina. Z optimizacijo razmerja PAN : kazein dobimo relativno debela, ravna nanovlakna, ki jih je moč stabilizirati in karbonizirati, brez da bi zaradi dodatka ZnO prišlo do dobro znanega negativnega vpliva na celično adhezijo.

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Water Resistance and Morphology of Electrospun Gelatine Blended with Citric Acid and Coconut Oil

Cited by 15 publications

References 24 publications

Incorporation of PVDF Nanofibre Multilayers into Functional Structure for Filtration Applications

Incorporation of PVDF Nanofibre Multilayers into Functional Structure for Filtration Applications

Dye-Sensitized Solar Cells with Electrospun Nanofiber Mat-Based Counter Electrodes

Chemical and Morphological Modification of PAN Nanofibrous Mats with Addition of Casein after

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