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Gotowa bibliografia na temat „Polymers - Electrospinning”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Polymers - Electrospinning"

Hanumantharao i Rao. "Multi-Functional Electrospun Nanofibers from Polymer Blends for Scaffold Tissue Engineering". Fibers 7, nr 7 (19.07.2019): 66. http://dx.doi.org/10.3390/fib7070066.

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Electrospinning and polymer blending have been the focus of research and the industry for their versatility, scalability, and potential applications across many different fields. In tissue engineering, nanofiber scaffolds composed of natural fibers, synthetic fibers, or a mixture of both have been reported. This review reports recent advances in polymer blended scaffolds for tissue engineering and the fabrication of functional scaffolds by electrospinning. A brief theory of electrospinning and the general setup as well as modifications used are presented. Polymer blends, including blends with natural polymers, synthetic polymers, mixture of natural and synthetic polymers, and nanofiller systems, are discussed in detail and reviewed.

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Amna, Riffat, Kabbir Ali, Muhammad Irfan Malik i Sami Ibn Shamsah. "A Brief Review of Electrospinning of Polymer Nanofibers: History and Main Applications". Journal of New Materials for Electrochemical Systems 23, nr 3 (30.09.2020): 151–63. http://dx.doi.org/10.14447/jnmes.v23i3.a01.

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Electrospinning is an intensely facile methodology for the precise manufacturing of polymer nanofibers by manipulation of electrostatic force, which stunts like a driving force. In this technique, fibers produced with a diameter range between 50 to 500 nm. Two practices are made up by the scientists for electrospinning of versatile polymer. Polymers can be electrospun into ultrafine fibers in solvent solution or melt form. Tremendous progress had been made in this field in the past, and numerous applications were inaugurated. It’s a field of nanotechnology which rapidly growing due to enormous potential in creating novel applications regarding morphologies, materials structure, surface area, porosity, and Reinforcement in nanocomposite development. Fibers can be assembled in the form of nonwoven, aligned, patterned, random three-dimensional structures and sub-micron fibers. Many complications faced during electrospinning, for example, control the morphology and structure of Nanofibers, analyze surface functionality, and assembling strategies for various polymers. We need to find out various parameters for accurate fiber assembly. Here we briefly review the evolution activities in the field of electrospinning, understand its process, polymeric structure, property characterization, technology frailty, research provocations, future expectations, and resourceful applications.

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Kohse, Stefanie, Niels Grabow, Klaus-Peter Schmitz i Thomas Eickner. "Electrospinning of polyimide nanofibres – effects of working parameters on morphology". Current Directions in Biomedical Engineering 3, nr 2 (7.09.2017): 687–90. http://dx.doi.org/10.1515/cdbme-2017-0145.

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AbstractThe use of the electrospinning technique is a promising and versatile method for producing fibrous nonwovens from various polymers. Here we present fibre formation via direct electrospinning of a soluble polyimide, a class of polymers that is typically insoluble. In this study solution parameters as the solvent and the polymer concentration are investigated. Furthermore relevant process parameters are varied for optimization of the performance. The presented data indicate polyimide as a promising material for the fabrication of nanofibrous nonwovens via direct electrospinning.

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Ali, Muhammad, Qura Tul Ain i Ji HuanHe. "Branched nanofibers for biodegradable facemasks by double bubble electrospinning". Acta Chemica Malaysia 4, nr 2 (1.12.2020): 40–44. http://dx.doi.org/10.2478/acmy-2020-0007.

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AbstractWorld health organization (WHO) data shows that air pollution kills an estimated seven million people worldwide every year. A nanofiber based biodegradable facemask can keep breath from smoke and other particles suspended in the air. In this study, we propose branched polymeric nanofibers as a biodegradable material for air filters and facemasks. Fibers have been elecrospun using double bubble electrospinning technique. Biodegradable polymers, PVA and PVP were used in our experiment. Two tubes, each filled with one of the polymers, were supplied with air from the bottom to form bubbles of polymer solutions. DC 35-40 kV was used to deposit the fibers on an aluminum foil. Results show that the combination of polymers under specific conditions produced branched fibers with average nanofibers diameter of 495nm. FT-IR results indicate the new trends in the graph of composite nanofibers.

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Wang, Chong, i Min Wang. "Emulsion Electrospinning of Nanofibrous Delivery Vehicles for the Controlled Release of Biomolecules and the In Vitro Release Behaviour of Biomolecules". Advanced Materials Research 410 (listopad 2011): 98–101. http://dx.doi.org/10.4028/www.scientific.net/amr.410.98.

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Electrospinning is a popular technique for constructing nanofibrous tissue engineering scaffolds. Electrospinning is also amenable to the incorporation of drugs or biomolecules in fibers, which can provide local and sustained delivery of biological signals, such as growth factors, for the seeded cells. Drugs can normally be dissolved in polymer solutions for electrospinning, forming nanofibrous drug delivery systems. However, simply blending biomolecules in polymer solutions can result in denaturation of biomolecules and large initial burst release. Therefore, emulsion electrospinning, which can provide protection for biomolecules during electrospinning, is of great interest. In this investigation, biomolecule-containing scaffolds were emulsion electrospun using bovine serum albumin (BSA) as the model protein. Two polymers, poly (lactic-co-glycolic acid) and poly (D,L-lactic acid), were used due to their different degradation characteristics. Nanofibers with core-shell structures were electrospun from water-in-oil emulsions formulated by polymer solution, BSA-containing deionized water and a surfactant. By changing the polymer concentration and water phase volume, the fiber diameter and core-shell structure were varied. With different polymers and different fiber structures, the in vitro BSA release behaviours from fibrous scaffolds were different.

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Wortmann, Martin, Natalie Frese, Lilia Sabantina, Richard Petkau, Franziska Kinzel, Armin Gölzhäuser, Elmar Moritzer, Bruno Hüsgen i Andrea Ehrmann. "New Polymers for Needleless Electrospinning from Low-Toxic Solvents". Nanomaterials 9, nr 1 (2.01.2019): 52. http://dx.doi.org/10.3390/nano9010052.

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Electrospinning is a new technology whose scope is gradually being developed. For this reason, the number of known polymer–solvent combinations for electrospinning is still very low despite the enormous variety of substances that are potentially available. In particular, electrospinning from low-toxic solvents, such as the use of dimethyl sulfoxide (DMSO) in medical technology, is rare in the relevant scientific literature. Therefore, we present in this work a series of new polymers that are applicable for electrospinning from DMSO. From a wide range of synthetic polymers tested, poly(vinyl alcohol) (PVOH), poly(2ethyl2oxazolene) (PEOZ), and poly(vinylpyrrolidone) (PVP) as water-soluble polymers and poly(styrene-co-acrylonitrile) (SAN), poly(vinyl alcohol-co-ethylene) (EVOH), and acrylonitrile butadiene styrene (ABS) as water-insoluble polymers were found to be suitable for the production of nanofibers. Furthermore, the influence of acetone as a volatile solvent additive in DMSO on the fiber morphology of these polymers was investigated. Analyses of the fiber morphology by helium ion microscopy (HIM) showed significantly different fiber diameters for different polymers and a reduction in beads and branches with increasing acetone content.

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Igreja, Rui, H. Domingos, João P. Borges i C. J. Dias. "Enhancing the Response of Chemocapacitors with Electrospun Nanofiber Films". Materials Science Forum 730-732 (listopad 2012): 197–202. http://dx.doi.org/10.4028/www.scientific.net/msf.730-732.197.

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Chemocapacitors are polymer coated Interdigital electrodes (IDE) where the transducer mechanism relies on the permittivity changes and swelling of the coating polymer (sensitive layer), usually in a form of a thin film, when exposed to an volatile organic compound (VOC). Despite several synthetic and natural polymers have already been produced by electrospinning, there have been fewer studies on rubbery polymers with low glass transition temperature (e.g. Poly(dimethyl siloxane) – PDMS). In this work we produce PDMS:PMMA 3:1 nanofiber (NF) layers by electrospinnig to be used as chemical sensitive layers on IDE chemocapacitors. The results show an enhanced response from the sensors with NFs with respect with sensors prepared with the same sensitive layers in the form of a homogeneous film.

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Shamsuri, Ahmad Adlie, Khalina Abdan i Siti Nurul Ain Md. Jamil. "Preparations and Properties of Ionic Liquid-Assisted Electrospun Biodegradable Polymer Fibers". Polymers 14, nr 12 (7.06.2022): 2308. http://dx.doi.org/10.3390/polym14122308.

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Enhanced awareness of the environment and environmental conservation has inspired researchers to search for replacements for the use of volatile organic compounds in the processing of polymers. Recently, ionic liquids have been utilized as solvents for solvating natural and synthetic biodegradable polymers since they are non-volatile, recyclable, and non-flammable. They have also been utilized to prepare electrospun fibers from biodegradable polymers. In this concise review, examples of natural and synthetic biodegradable polymers that are generally employed as materials for the preparation of electrospun fibers are shown. In addition, examples of ionic liquids that are utilized in the electrospinning of biodegradable polymers are also displayed. Furthermore, the preparations of biodegradable polymer electrospinning solutions utilizing ionic liquids are demonstrated. Additionally, the properties of electrospun biodegradable polymer fibers assisted by different ionic liquids are also concisely reviewed. Besides this, the information acquired from this review provides a much deeper understanding of the preparation of electrospinning solutions and the essential properties of electrospun biodegradable polymer fibers. In summary, this concise review discovered that different functions (solvent or additive) of ionic liquids could provide distinct properties to electrospun fibers.

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Serrano-Garcia, William, Seeram Ramakrishna i Sylvia W. Thomas. "Electrospinning Technique for Fabrication of Coaxial Nanofibers of Semiconductive Polymers". Polymers 14, nr 23 (22.11.2022): 5073. http://dx.doi.org/10.3390/polym14235073.

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In this work, the electrospinning technique is used to fabricate a polymer-polymer coaxial structure nanofiber from the p-type regioregular polymer poly(3-hexylthiophene-2,5-diyl) (P3HT) and the n-type conjugated ladder polymer poly(benzimidazobenzophenanthroline) (BBL) of orthogonal solvents. Generally, the fabrication of polymeric coaxial nanostructures tends to be troublesome. Using the electrospinning technique, P3HT was successfully used as the core, and the BBL as the shell, thus conceptually forming a p-n junction that is cylindrical in form with diameters in a range from 280 nm to 2.8 µm. The UV–VIS of P3HT/PS blend solution showed no evidence of separation or precipitation, while the combined solutions of P3HT/PS and BBL were heterogeneous. TEM images show a well-formed coaxial structure that is normally not expected due to rapid reaction and solidification when mixed in vials in response to orthogonal solubility. For this reason, extruding it by using electrostatic forces promoted a quick elongation of the polymers while forming a concise interface. Single nanofiber electrical characterization demonstrated the conductivity of the coaxial surface of ~1.4 × 10−4 S/m. Furthermore, electrospinning has proven to be a viable method for the fabrication of pure semiconducting coaxial nanofibers that can lead to the desired fabrication of fiber-based electronic devices.

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Acosta, Mariana, Marvin D. Santiago i Jennifer A. Irvin. "Electrospun Conducting Polymers: Approaches and Applications". Materials 15, nr 24 (9.12.2022): 8820. http://dx.doi.org/10.3390/ma15248820.

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Inherently conductive polymers (CPs) can generally be switched between two or more stable oxidation states, giving rise to changes in properties including conductivity, color, and volume. The ability to prepare CP nanofibers could lead to applications including water purification, sensors, separations, nerve regeneration, wound healing, wearable electronic devices, and flexible energy storage. Electrospinning is a relatively inexpensive, simple process that is used to produce polymer nanofibers from solution. The nanofibers have many desirable qualities including high surface area per unit mass, high porosity, and low weight. Unfortunately, the low molecular weight and rigid rod nature of most CPs cannot yield enough chain entanglement for electrospinning, instead yielding polymer nanoparticles via an electrospraying process. Common workarounds include co-extruding with an insulating carrier polymer, coaxial electrospinning, and coating insulating electrospun polymer nanofibers with CPs. This review explores the benefits and drawbacks of these methods, as well as the use of these materials in sensing, biomedical, electronic, separation, purification, and energy conversion and storage applications.

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Rozprawy doktorskie na temat "Polymers - Electrospinning"

Norton, David. "Electrospinning of polymers". Thesis, University of Sheffield, 2006. http://etheses.whiterose.ac.uk/15166/.

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The electro spinning process is of great utility in the manufacture of non-woven fabrics for a variety of applications including tissue engineering. A machine has been constructed capable of electrostatically spinning (electro spinning) a wide range of polymer solutions for the production of nano and micrometer diameter polymer fibres and fibrous non-wovens. The key role of these scaffolds in the research is in the making of tissue engineered scaffolds. Methods have been developed to allow control over the fibre topography enabling the production of fibrous polystyrene (PS) and poly(l-lactide) (PLLA) scaffolds within which skin cells can proliferate and self-organise. A polystyrene scaffold, without cell signalling chemistry, was made by electro spinning and used for coculture of fibroblasts, keratinocytes and endothelial cells. In the absence of growth serum the single cell cultures did not thrive, but together they did not need growth serum to populate the 3-D structure. When cultured at an air-water interface native spatial organisation was observed, demonstrating that not only does co-culture allow cells to proliferate without serum but also spontaneously self organise into the epidermal/dermal structure. Control over the fibre surface has also been achieved whereby electro spinning in a variable humidity environment alters the porosity of the fibre surface. The benefits of this surface control have been investigated in terms of the fibre's efficacy at drug delivery. Rates of delivery of a water soluble drug encapsulated within PLLA fibres with modified surface morphologies were monitored. It was shown that the surface pores were insufficiently large to cause a noticeable increase in drug delivery rates compared with totally smooth fibres. A novel electrospinning technique has been introduced and trialled whereby aligned micro and nanofibres of a range of polymers have been produced. This method represents a breakthrough technology in electrospinning where non-woven products are usually obtained.

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Eda, Goki. "Effects of solution rheology on electrospinning of polystyrene". Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-042706-135317/.

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Lin, Yinan. "Electrospinning Polymer Fibers for Design and Fabrication of New Materials". University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1310997689.

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Hsu, Chen-Ming. "Electrospinning of Poly(£`-Caprolactone)". Digital WPI, 2003. https://digitalcommons.wpi.edu/etd-theses/485.

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The objectives of the present work are to produce porous polymeric scaffolds with Poly (Ã†â€™Ãƒâ€¢-Caprolactone), PCL, by electrospinning. The structure in the electrospun polymer has been characterized by scanning electron microscopy. The effects of process variables such as voltage, solution concentration and deposition distance on the structure have been studied. The physical phenomena associated with the electrospinning process have been highlighted through high speed digital photography. The feasibility of using additives to the solution to control the structure of the porous construct has been examined. The data indicate that a range of structural morphologies can be produced in the electrospun polymer. Solid and hollow sub-micron beads can be produced by electrospraying of dilute solutions. Beyond a critical solution concentration of about 4 wt% PCL, elongational flow stabilizes the fibrous structure and a web of interconnected sub-micron fibers may be obtained. The average fiber diameter increases with concentration. A combination of elongated beads and fibers, known as the bead-on-string morphology is also observed under many conditions. The fibrous structure is stabilized at high voltages. The fiber diameter in the electrospun polymer typically exhibits a bimodal distribution. The addition of DMF (N,N-dimethylformamide) to the solution increases the deposition rate significantly and leads to extensive splaying, thereby reducing the fiber diameter to about 150 nm. DSC data indicate that electrospinning may lower the degree of crystallinity in the polymer. The wide of range of structural characteristics that may be obtained in the electrospun polymer make it suitable for many biomedical applications including medical textiles, drug delivery, membrane separation, tissue engineering and organ regeneration.

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Hassounah, Ibrahim [Verfasser]. "Melt electrospinning of thermoplastic polymers / Ibrahim Hassounah". Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2012. http://d-nb.info/1023021420/34.

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Keulder, Liesl. "The preparation of polyolefin nanofibres by solution electrospinning". Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80277.

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Thesis (PhD)--Stellenbosch University, 2013.
ENGLISH ABSTRACT: Solution electrospinning is a technique used to produce polymer micro- or nanofibres. Recently a great deal of research has been done on the application of polymer nanofibres produced by this method. The solution electrospinning of polyolefins have not been researched in-depth mainly due to the difficulty in dissolving these polymers in suitable electrospinning solvents. We managed to electrospin polypropylene copolymers at room temperature, obtaining both polymer micro- and nanofibres. A suitable solvent system was developed (cyclohexane/DMF/acetone) that allowed for the room temperature solution electrospinning of these crystalline polypropylene copolymers. It was also shown that using propylene-1-alkene copolymers with a low comonomer content was a facile way of producing crystalline polyolefins nano – and microfibers. Similar attempts to electrospin isotactic polypropylene were unsuccessful, even though lower molecular weight materials were used than in the case of the copolymers. This lead to an investigation of solution melting temperature by SCALLS. The copolymers showed great variance in their solution melting temperatures despite the fact that they all had more or less the same crystallinity and amount of comonomer, indicating that the type of comonomer played an important role in the solubility of the copolymer. The effect of different collectors was investigated, but in the end it was found that between spinning unto ice, foil on ice of just foil, foil still seemed to be the best collector. Comparing crystallinity of the polymer powders with that of the polymer fibres by DSC and WAXD, it was found that there is a difference in the crystallinity of the fibres and the powders. EVOH is a polymer with excellent properties and electropspinning of this polymer is relatively easy due to the fact that it dissolves quite easily in conductive solvents. DMF, Isopropanol/water and DMSO were all tested as suitable solvents and the morphology was compared through the use of SEM. The morphology of the fibres indicated that DMSO was the best solvent. The influence of the spinning parameters was determined for both systems of DMF and DMSO. These nanofibres were used as reinforcement in LDPE matrix and the mechanical properties of the LDPE matrix was improved with the addition of both aligned and unaligned fibres. The next step was the electrospinning of EVOH fibres containing MWCNT. TEM, FE-SEM and TGA were used to confirm the presence of the MWCNT as well as determine the distribution of the MWCNT inside the nanofibres. The nanotubes were distributed through the fibres; however agglomeration of the nanotubes did still take place. The nanofibres containing MWCNT were also used to make composites where the fibres were melted, leaving the MWCNT behind in the polymer matrix. This was done in both LDPE and EVOH matrices. The LDPE/MWCNT composites did not give positive results, on the other hand the EVOH/MWCNT composite showed an improvement in the mechanical properties compared to pure EVOH. The attachment of fluorescent dye molecules to the surface of the MWCNT was attempted and through fluorescent microscopy and the dispersion of the nanotubes inside the fibres as well as the composite could be seen. This study proved that polyolefin nanofibres could be obtained, giving rise to more applications for these versatile polymers. It also confirmed the importance of nanofibres as reinforcement and the use of nanofibres as a way to incorporate MWCNT in a polymer matrix.
AFRIKAANSE OPSOMMING: Elektrospin in ‘n oplosmiddel is ‘n tegniek wat gebruik word om polimeer mikro- en nanovesels te produseer. Die afgelope tyd word baie navorsing gedoen oor die aanwending van polimeer nanovesels wat geproduseer word op hierdie manier. Daar is nog min navorsing gepubliseer wat handel oor die elektrospin van poliolefiene uit ‘n oplosmiddel, deels oor hoe moeilik dit is om ‘n geskikte elektrospin oplosmiddel te vind vir hierdie polimere. In hierdie studie het ons mikro- en nanovesels verkry deur polipropileen kopolimere te elektrospin by kamertemperatuur. Die polimere is opgelos in ‘n oplosmiddel sisteem wat bestaan uit sikloheksaan/dimetielformamied/asetoon, by hoë temperatuur en het toegelaat dat die polimere in oplossing bly by kamertemperatuur. Hierdie diverse kopolimere het verskillende resultate gegee, sommige polimere het mikrovesels produseer, waar ander nanovesels geproduseer het. Die vessel morfologie is ondersoek deur die gebruik van Skandering Elektron Mikroskopie (SEM) en daar is gevind dat die vesels nie ‘n gladde voorkoms het nie, maar dat daar kraalvormige morfologie gesien kon word. Om dit te voorkom is sout by die oplosmiddel sisteem gevoeg. Die invloed van die verskillende parameters op die vesels se deursnit is ondersoek vir al die kopolimere. Die byvoeging van sout het gelei tot ‘n meer gladde vesel morfologie. Die effek van die gebruik van verskillende oppervlaktes om die vesels op te vang is ondersoek en die die kristalliniteit van die polimeer poeiers is vergelyk met die kristalliniteit van die polimeer vesels met die hulp van DSC en WAXD. ‘n Poging is aangewend om isotaktiese polipropileen te elektrospin uit oplossing, maar ons kon nie daarin slag om die polimeer op te los nie, al was die molekulêre gewig minder as die van die kopolimere. Dit het gelei tot die ondersoek van die smeltpunt temperatuur in oplossing deur die gebruik van oplossing kristallisasie-analise deur laser lig verstrooing (SCALLS). Al die kopolimere het min of meer dieselfde kristalliniteit en hoeveelheid komonomer bevat, tog het hulle smeltpunt temperatuur in oplossing baie verskil. Dit het gedui op die feit dat die tipe komonomeer ‘n groot rol speel in die oplosbaarheid van die kopolimeer. Die elektrospin van etileen-ko-vinielalkohol (EVOH) is ook ondersoek. DMF, Isopropanol/Water en Dimetielsulfoksied (DMSO) is getoets as geskikte oplosmiddels en die morfologie van die vesels is vergelyk deur die gebruk van SEM. Die tyd wat die polimeer in oplossing gebly het asook die morfologie van die vesels, het aangedui dat DMSO die mees geskikte oplosmiddel was. Die invloed van die elektrospin parameters was vasgestel vir beide DMF en DMSO sisteme. Hierdie nanovesels is gebruik as versterking in ‘n LDPE matriks en die meganiese eienskappe van die LDPE matriks is verbeter deur die toevoeging van beide nie-geweefde en gerigte veselsopppervlakte. Die volgende stap was die elektrospin van EVOH vesels wat multi-ommuurde koolstof nanobuisies (MWCNT) bevat. TEM, FE-SEM en TGA was gebruik om te bevestig dat die vesels wel MWCNT bevat asook om die verspreiding van MWCNT in die vesels aan te dui. Die nanobuisies was versprei deur die vesels, maar bundels nanobuisies het tog voorkom in sommige plekke. Die nanovesels wat MWCNT bevat is ook gebruik om nanosamestellings te maak, waar die vesels gesmelt is om net MWCNT agter te laat in die polimeer matriks. Hierdie was gedoen in beide LDPE en EVOH matrikse. Geen positiewe resultate is verkry vir die LDPE/MWCNT nanosamestelling nie, maar die EVOH/MWCNT nanosamestelling het aan die anderkant ‘n groot verbetering getoon in die meganiese eienskappe in vergelyking met EVOH sonder MWCNT. ‘n Poging was aangewend om fluoreseerende molekules aan die oppervlak van MWCNT te voeg en deur fluoresensie mikroskopie kon die verspreiding van die MWCNT in die vesels asook in die nanosamestellings gesien word. Hierdie studie het bewys dat poliolefien nanovesels gemaak kan word wat lei tot die aanwending van hierdie polimere in nog meer toepassings. Dit het ook die belangrikheid van die gebruik van nanovesels as versterking in nanosamestellings bevestig asook die gebruik van nanovesels as ‘n manier om MWCNT in ‘n matriks te plaas.

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Xin, Yu. "Electrospinning Process and Resulting Nanofibers". University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1321286561.

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Gao, Yaohua. "Electrospinning of Resorbable Amino-Acid Based Poly(ester urea)s for Regenerative Medicine". University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460374617.

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Daga, Vikram Kumar. "Rheology and electrospinning of neat and laponite-filled poly(ethylene oxide) solutions". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file Mb., 133 p, 2006. http://wwwlib.umi.com/dissertations/fullcit?1435916.

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Kakade, Meghana Vasant. "Uniaxial orientation of polymer molecules via electrospinning". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 53 p, 2007. http://proquest.umi.com/pqdweb?did=1338927121&sid=11&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Książki na temat "Polymers - Electrospinning"

Filatov, Y. Electrospinning of micro-and nanofibers: Fundamentals and applications in separation and filtration processes. New York: Begell House, 2007.

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Haghi, A. K. Advances in nanofibre research. Shawbury, Shrewsbury, Shropshire, U.K: ISmithers, 2011.

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Ramakrishna, S., Andreas Greiner, Joachim H. Wendorff i Seema Agarwal. Electrospinning: Materials, Processing, and Applications. Wiley-VCH Verlag GmbH, 2012.

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Greiner, Andreas, Joachim H. Wendorff i Seema Agarwal. Electrospinning: Materials, Processing, and Applications. Wiley & Sons, Incorporated, John, 2012.

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Greiner, Andreas, Joachim H. Wendorff i Seema Agarwal. Electrospinning: Materials, Processing, and Applications. Wiley & Sons, Limited, John, 2012.

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Greiner, Andreas, Joachim H. Wendorff i Seema Agarwal. Electrospinning: Materials, Processing, and Applications. Wiley & Sons, Incorporated, John, 2012.

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Greiner, Andreas, Joachim H. Wendorff i Seema Agarwal. Electrospinning: Materials, Processing, and Applications. Wiley & Sons, Incorporated, John, 2012.

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Thomas, Sabu, Erich Kny, Theodora Krasia-Christoforou, Haydn Kriel i Andrea Townsend-Nicholson. Electrospinning: From Basic Research to Commercialization. Royal Society of Chemistry, The, 2018.

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Wendorff, Joachim, Matthias Burgard, Andreas Greiner i Seema Agarwal. Electrospinning: A Practical Guide to Nanofibers. de Gruyter GmbH, Walter, 2016.

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Wendorff, Joachim, Matthias Burgard, Andreas Greiner i Seema Agarwal. Electrospinning: A Practical Guide to Nanofibers. de Gruyter GmbH, Walter, 2016.

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Części książek na temat "Polymers - Electrospinning"

Chronakis, Ioannis S. "Nanostructured Conductive Polymers by Electrospinning". W Nanostructured Conductive Polymers, 161–207. Chichester, UK: John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470661338.ch4.

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Torres-Giner, Sergio. "Novel Antimicrobials Obtained by Electrospinning Methods". W Antimicrobial Polymers, 261–85. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118150887.ch10.

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Kannan, Bhuvana, Hansol Cha i Iain C. Hosie. "Electrospinning—Commercial Applications, Challenges and Opportunities". W Nano-size Polymers, 309–42. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39715-3_11.

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Mohammadzadehmoghadam, Soheila, Yu Dong, Salim Barbhuiya, Linjun Guo, Dongyan Liu, Rehan Umer, Xiaowen Qi i Youhong Tang. "Electrospinning: Current Status and Future Trends". W Nano-size Polymers, 89–154. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39715-3_4.

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Boland, E. D., K. J. Pawlowski, C. P. Barnes, D. G. Simpson, G. E. Wnek i G. L. Bowlin. "Electrospinning of Bioresorbable Polymers for Tissue Engineering Scaffolds". W ACS Symposium Series, 188–204. Washington, DC: American Chemical Society, 2006. http://dx.doi.org/10.1021/bk-2006-0918.ch014.

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Chow, Lesley W. "Electrospinning Functionalized Polymers for Use as Tissue Engineering Scaffolds". W Biomaterials for Tissue Engineering, 27–39. New York, NY: Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-7741-3_3.

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Supaphol, Pitt, Orawan Suwantong, Pakakrong Sangsanoh, Sowmya Srinivasan, Rangasamy Jayakumar i Shantikumar V. Nair. "Electrospinning of Biocompatible Polymers and Their Potentials in Biomedical Applications". W Biomedical Applications of Polymeric Nanofibers, 213–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/12_2011_143.

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Lelkes, Peter I., Mengyan Li, Anat Perets, Mark J. Mondrinos, Yi Guo, Xuesi Chen, Alan G. MacDiarmid, Frank K. Ko, Christine M. Finck i Yen Wei. "Designing Intelligent Polymeric Scaffolds for Tissue Engineering: Blending and Co-Electrospinning Synthetic and Natural Polymers". W Experimental Analysis of Nano and Engineering Materials and Structures, 831–32. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6239-1_413.

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Sofi, Hasham S., Roqia Ashraf, Mushtaq A. Beigh i Faheem A. Sheikh. "Scaffolds Fabricated from Natural Polymers/Composites by Electrospinning for Bone Tissue Regeneration". W Advances in Experimental Medicine and Biology, 49–78. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0950-2_4.

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Zhang, Keqin, Wei Yuan, Ning Zhou i Chaojie Wu. "Multicomponent Nanofibers via Electrospinning of Polymers and Colloidal Dispersions for Environmental and Optical Applications". W Nanostructure Science and Technology, 403–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54160-5_16.

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Streszczenia konferencji na temat "Polymers - Electrospinning"

Russo, Giuseppina, Gerrit W. M. Peters, Ramon H. M. Solberg i Vittoria Vittoria. "Design of electrospinning mesh devices". W 6TH INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2012. http://dx.doi.org/10.1063/1.4738452.

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Kotomin, S. V., V. G. Kulichikhin i I. Yu Skvortsov. "“Mechanotropic” mechanism of electrospinning". W 9TH INTERNATIONAL CONFERENCE ON “TIMES OF POLYMERS AND COMPOSITES”: From Aerospace to Nanotechnology. Author(s), 2018. http://dx.doi.org/10.1063/1.5046045.

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Russo, Giuseppina, Gerrit W. M. Peters i Ramon H. M. Solberg. "Preparation and characterization of mesh membranes using electrospinning technique". W 6TH INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2012. http://dx.doi.org/10.1063/1.4738453.

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Mecozzi, L., O. Gennari, R. Rega, S. Grilli, S. Bhowmick, M. A. Gioffrè, G. Coppola i P. Ferraro. "Spiral formation at microscale by μ-pyro-electrospinning". W VIII INTERNATIONAL CONFERENCE ON “TIMES OF POLYMERS AND COMPOSITES”: From Aerospace to Nanotechnology. Author(s), 2016. http://dx.doi.org/10.1063/1.4949654.

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Olkhov, A. A., P. M. Tyubaeva, O. V. Staroverova, E. E. Mastalygina, A. A. Popov, A. A. Ischenko i A. L. Iordanskii. "Process optimization electrospinning fibrous material based оn polyhydroxybutyrate". W VIII INTERNATIONAL CONFERENCE ON “TIMES OF POLYMERS AND COMPOSITES”: From Aerospace to Nanotechnology. Author(s), 2016. http://dx.doi.org/10.1063/1.4949673.

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Russo, Giuseppina, Vittoria Vittoria, Gaetano Lamberti, Giuseppe Titomanlio, A. D’Amore, Domenico Acierno i Luigi Grassia. "Electrospinning of drug-loaded polymer systems: preparation, characterization and drug release". W V INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2010. http://dx.doi.org/10.1063/1.3455620.

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Al-Hazeem, Nabeel Z., Naser M. Ahmed, M. Z. Matjafri, Fayroz A. Sabah i Hiba S. Rasheed. "Novel nanorods based on PANI / PEO polymers using electrospinning method". W INTERNATIONAL CONFERENCE ON NANO-ELECTRONIC TECHNOLOGY DEVICES AND MATERIALS 2015 (IC-NET 2015). Author(s), 2016. http://dx.doi.org/10.1063/1.4948845.

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Manakhov, Anton, Iaroslav Rybkin, Fahd I. AlGhunaimi i Norah W. Aljuryyed. "Nanomembranes from Polymeric Waste for Produced Water Treatment". W Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213946-ms.

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Abstract Objectives/Scope In the oil&gas sector, the produced water is the most significant waste stream. Among different possible materials including ceramic, polymers, carbon nanomaterials used for water filtration, polymeric nanofibers can be considered unique solution that can be used as a membrane and/or adsorbent. In this work we prepared polymeric nanofibers from polystyrene-waste to show a win-win approach to re-use polymer waste and clean produced water from organic contaminations. Methods, Procedures, Process The polystyrene waste dissolved in the dimethylformamide (DMFA) was used as a feedstock for the preparation of nanofibrous membranes by using the electrospinning process. Electrospinning is one of the simplest methods for the preparation of nanofibers with diameters ranging from micrometers down to nanometers. It uses strong electrostatic forces overcoming the surface tension of a polymer solution. We studied the electrospinning of polystyrene solutions with a range of concentrations from 10 to 30 (w/v %) and tested different solvents, including chloroform, acetone, dimethylformamide (DMFA), and ethyl acetate, and their binary mixtures. Results, Observations, Conclusions SEM revealed that the samples prepared with ethyl acetate solutions were thin and with numerous defects. In contrast the layers obtained by electrospinning of polystyrene waste dissolved in the DMFA exhibited homogeneous nanostructure if the voltage and concentration were properly adjusted. The beads-free homogenous nanofibers were synthesized for the solution with the concentrations from 15 to 25 w/v % at the voltage 20𠄻28 kV. The artefacts were suppressed by increasing the polystyrene concentration and electrospinning voltage. The wettability of the obtained nanofibers was evaluated by water contact angle (WCA) measurements. All samples were superhydrophobic with the WCA values from 115 to 145°. The obtained nanomembranes exhibited high efficiency for separation of water/hydrocarbon mixtures. Novel/Additive Information The utilization of dissolved polystyrene waste for the preparation of nanomembranes for separation of hydrocarbon pollutants from the wastewater streams potentially can be green win-win approach allowing to clean water and utilize abundant expanded polystyrene waste.

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Kanukuntla, Sai-Pavan, Jaymin-Vrajlal Sanchaniya i Vitalijs Beresnevics. "Comparative dsc analysis of virgin and nanofiber mats of PA6". W 22nd International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering, 2023. http://dx.doi.org/10.22616/erdev.2023.22.tf113.

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Differential scanning calorimetry (DSC) is a useful technique for analysing the thermal behaviour of materials by measuring the heat transferred through a sample during temperature fluctuations. For polymers, understanding their thermal characteristics is crucial to determine their process capability, mechanical properties, stability at high temperatures, and suitability for specific applications. In this context, the electrospinning process involves heating polymers and subjecting them to high voltage, leading to changes in their thermal properties. Therefore, it is essential to identify these modifications to determine the thermal conductivity, stability, and temperature management of the nanofiber for specific applications. This study focuses on the analysis of polyamide (PA6) nanofibers produced by electrospinning using DSC and compares them to virgin PA6 to identify significant changes in thermal properties. The PA6 nanofibers were prepared by electrospinning PA6 polymer and collecting on a rotating drum at a needle tip of 20 cm to the collector centre distance. For comparison of thermal properties, the same virgin PA6 was used for DSC testing from which nanofibers were produced. The results show that the nanofiber mat’s glass transition temperature increased by 3.2%, while the melting temperature decreased by 0.7%. Furthermore, the delta Cp (change in specific heat capacity) of the nanofiber mat was enhanced by 96%, and its thermal heat capacity and crystallinity increased by 16%. Therefore, this study provides insights into the alterations in the thermal characteristics of the nanofiber mat created by electrospinning.

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Seok Lyoo, Won, Young Jae Lee, Jin Wook Cha, Min Jae Kim, Sang Woo Joo, Yeong Soon Gal, Tae Hwan Oh i in. "Preparation and Characterization of Atactic Poly(vinyl alcohol)∕Platinum Nanocomposites by Electrospinning". W V INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2010. http://dx.doi.org/10.1063/1.3455645.

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