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Henan Tongwei Medical Equipment Co., LtdCall us : +86 − −19139704654 // Email us : [email protected]
Electrospun Nanofibers covers advances in the electrospinning process including characterization testing and modeling of electrospun nanofibers and electrospinning for particular fiber types and applications Electrospun Nanofibers offers systematic and comprehensive coverage for academic researchers industry professionals and postgraduate students working in the field of fiber science
– Wide range of models from basic to very advanced units – Various types of collectors (Rotating Drum Plate Roll-to-roll ) – Single component and bi-component nanofibers production – Advanced and accurate control of the Electrospinning process – Possibility to scale-up from basic to advanced models – Free lifetime support
2 2 Preparation of Fe 3 O 4 NPs Fe 3 O 4 NPs were obtained via a facile coprecipitation synthetic method and PEG was used as a protective agent to prevent the particles from aggregation One typical synthetic procedure was as follows: 5 4060 g of FeCl 3 6H 2 O 2 7800 g of FeSO 4 7H 2 O 4 04 g of NH 4 NO 3 and 1 9 g of PEG were added into 100 mL of deionized water to form uniform
Jul 15 2011In this work novel 3D filtration model for nanofiber based filters has been proposed and tested For the model validation purposes filtration efficiency characteristics of two different polyurethane nanofiber based structures (prepared by the electrospinning process) were determined experimentally in the ultrafine particle size range (20–400 nm)
Stereolithography (SLA) 3D printing has become vastly popular for its ability to produce high-accuracy isotropic and watertight prototypes and parts in a range of advanced materials with fine features and smooth surface finish In this comprehensive guide learn how SLA printing technologies work why thousands of professionals use this process today and what you need to know to explore how
DOI: 10 1155/2016/7565972 Corpus ID: 55283590 Preparation of antibacterial nanofibre/nanoparticle covered composite yarns article{Yalcinkaya2016PreparationOA title={Preparation of antibacterial nanofibre/nanoparticle covered composite yarns} author={Fatma Yalcinkaya and M Kom{'a}rek and D Lubasov{'a} and F Sanetrnik and J Maryska} journal={Journal of Nanomaterials} year={2016
Electrospinning is a fiber production method which uses electric force to draw charged threads of polymer solutions or polymer melts up to fiber diameters in the order of some hundred nanometers Electrospinning shares characteristics of both electrospraying and conventional solution dry spinning of fibers The process does not require the use of coagulation chemistry or high temperatures to
Dec 02 2019Fine particulate matter (PM) is composed of various solid fine particles and droplets with up to hundreds of chemical components PM is mainly composed of three major chemical substances including water-soluble ions carbon-containing compounds and other inorganic compounds [1 2 3 4 5] PM is mainly from the burning of fossil fuels and garbages and it is rich in toxic substances
Nov 06 2017Ngadiman N H A Mohd Yusof N Idris A Kurniawan D Fallahiarezoudar E Fabricating high mechanical strength γ-Fe 2 O 3 nanoparticles filled poly (vinyl alcohol) nanofiber using electrospinning process potentially for tissue engineering scaffold J Bioact Compat Polym 2016 doi: 10 1177/0883911516681328 [Google Scholar]
possible limitations a realistic SEM image based 3D structure model is proposed and used In this work this is demonstrated for a nanofiber based filter composed from polyurethane nanofiber layers prepared by electrospinning process Further full 3D particle filtration modelling using the 3D structure models
Nowadays hundreds of consumer products contain metal and metal oxide nanoparticles (NP) this increases the probability of such particles to be released to natural waters generating a potential risk to human health and the environment This paper presents the development of efficient carboneous nanofibrous membranes for NP filtration from aqueous solutions Free-standing carbon nanofiber
To explore the mechanism of cellulose acetate (CA)/thermoplastic polyurethane (TPU) on the fabrication of helical nanofibers a series of experiments were conducted to find the optimum spinning conditions The experimental results show that the CA (14 wt% DMAc/acetone 1/2 volume ratio)/TPU2 (18 wt% DMAc/acetone 3/1 volume ratio) system can fabricate helical nanofibers effectively via co
Moreover a special device AMFIT-13 was designed and used to characterize the bacterial filtration efficiency of nanofibers for air purification A very important result of this research is a proven fact that microparticles of CuO are a more suitable additive for the selected method of antibacterial modification of polyurethane filters than
The prepared TBR PU/GE nanofiber membrane was placed in a vacuum filtration apparatus 29 The continuous oil removal from the water surface and surfactant-stabilized water-in-oil emulsion via the TBR PU/GE nanofiber membrane was measured using a laboratory scale experimental setup with −0 5 bar as shown in Fig 2
Nov 09 2016Formhals A inventor Google Patents assignee Process and apparatus for preparing artificial threads Kimmer D 3D air filtration modeling for nanofiber based filters in the ultrafine particle Gorji M Jeddi A Gharehaghaji A Fabrication and characterization of polyurethane electrospun nanofiber membranes for protective
possible limitations a realistic SEM image based 3D structure model is proposed and used In this work this is demonstrated for a nanofiber based filter composed from polyurethane nanofiber layers prepared by electrospinning process Further full 3D particle filtration modelling using the 3D structure models
Aug 20 2020Meltblown () is a one-step process for converting polymeric raw materials into nonwovens with many applications such as filtration (air or liquid) surgical face masks and gowns protective overalls drapes battery separators sorbents and wipes hygiene (diapers nappies and towels) biosensors scaffolds for tissue engineering and many other areas 1–3 1
Dec 10 20071 Introduction Electrospinning is a unique technology that can produce non-woven fibrous articles with fiber diameters ranging from tens of nanometers to microns a size range that is otherwise difficult to access by conventional non-woven fiber fabrication techniques [1 2] Electrospun nanofibrous scaffolds possess an extremely high surface-to-volume ratio tunable porosity and
In this paper using artificial neural network (ANN) method to find the effects of electrospinning parameters including spinning distance (cm) applied voltage (kV) and volume flow rate (mL/ h) on the porosity of electrospun nanofiber membrane is mainly studied The porosity of the nanofiber membrane was obtained through the Matlab software to calculate the pixel value
Nov 06 2017Ngadiman N H A Mohd Yusof N Idris A Kurniawan D Fallahiarezoudar E Fabricating high mechanical strength γ-Fe 2 O 3 nanoparticles filled poly (vinyl alcohol) nanofiber using electrospinning process potentially for tissue engineering scaffold J Bioact Compat Polym 2016 doi: 10 1177/0883911516681328 [Google Scholar]
The prepared TBR PU/GE nanofiber membrane was placed in a vacuum filtration apparatus 29 The continuous oil removal from the water surface and surfactant-stabilized water-in-oil emulsion via the TBR PU/GE nanofiber membrane was measured using a laboratory scale experimental setup with −0 5 bar as shown in Fig 2
Electrospinning is a versatile and viable technique for generating ultrathin fibers Remarkable progress has been made with regard to the development of electrospinning methods and engineering of electrospun nanofibers to suit or enable various applications We
3D modeling of filtration process via polyurethane nanofiber based nonwoven filters prepared by electrospinning process Wannes Sambaera Martin Zatloukala * and Dusan Kimmerb a Polymer Center Faculty of Technology Tomas Bata University in Zlin TGM 275 762 72 Zlin Czech Republic b SPUR a s T Bati 299 764 22 Zlin Czech Republic Keywords
Feb 15 2011Full 3D particle filtration modeling at low pressures considering slip/transition/free molecular flow regime particle–fiber interactions air/particle slip sieve and homogenous flow field has been performed for the polyurethane nanofiber filter prepared by electrospinning process and the obtained theoretical predictions for the filtration efficiency have been compared with the
Molecular modelling of supramolecular one dimensional polymers RSC Advances 2018 8 (40) 22659-22669 DOI: 10 1039/C8RA03402H Fenglei Zuo Shichao Zhang Hui Liu Hao Fong Xia Yin Jianyong Yu Bin Ding Free-Standing Polyurethane Nanofiber/Nets Air Filters for Effective PM Capture
Preparation process optimization and characterization of core-shell polyurethane/chitosan nanofibers as a potential platform for bioactive scaffolds In this paper polyurethane (PU) chitosan (Cs)/polyethylene oxide (PEO) and core-shell PU/Cs nanofibers were produced at the optimal processing conditions using electrospinning technique
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