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2021年4月26日 A three-dimensional mobile magnetic melt spinning device model is constructed, a magnetic spinning test prototype is developed, and the prototype performance and influencing factors are...
Melt spinning is a metal forming technique that is typically used to form thin ribbons of metal or alloys with a particular atomic structure. Some important commercial applications of melt-spun metals include high-efficiency transformers (Amorphous metal transformer), sensory devices, telecommunications equipment, and power electronics.
2017年4月12日 With the aim of creating a new cellulosic fiber that is producible by melt spinning, we studied thermoplasticization of cellulose and rheological
2022年1月1日 Medium to high melt flow rate polypropylenes are used to produce continuous, fine denier filaments, extruded through spinnerets in melt spinning. Spunbonding usually
Melt spinning is a technique used for rapid solidification of molten metals. The alloy usually solidifies in the same structure of the liquid, in an amorphous or highly disordered state. The
2015年12月10日 Melt spinning is a fiber fabrication technique from polymers or polymer/diluent systems that can be melted. Both fibers (filaments) and hollow fibers can be prepared by melt
poly(butylene terephthalate), polypropylene, and polystyrene fiber by melt blowing apparatus with a single needle. They prepared nanofibers with average diameters smaller than 500 nm.
2015年12月10日 'Melt Spinning' published in 'Encyclopedia of Membranes' The type of phase separation (liquid-liquid phase separation, solid-liquid phase separation, combined liquid-liquid and solid-liquid phase separation) that is likely to occur for a given system (composition and temperature) is indicated by the phase diagram (Khayet and Matsuura 2011; Laxminarayan et
2020年8月10日 Melt e-spinning apparatus and melt e-spinning process. The self-powered hand-held melt e-spinning apparatus has a weight of about 450 g and a precise size of 24 cm in length, 6 cm in thickness and 13 cm in height,
2011年12月1日 Various methods for making micro- and nanoporous fibers including co-electrospinning, melt spinning, dry jet-wet quenching spinning, vapor deposition, template assisted deposition, electrochemical ...
Fig. 5.2 Examples of solution spinning for making cellulose fibers: a wet spinning; b dry-wet spinning Huge and renewable resource Carbon-neutral material Low risk to the environment with no toxic chemicals 1. Using celluloseas a raw material 2. Producing fibers by melt spinning process Creation of cellulose-based fibers by melt spinning:
Melt e-spinning apparatus and melt e-spinning process e self-powered hand-held melt e-spinning apparatus has a weight of about 450 g and a precise size of 24 cm in length, ...
2020年5月20日 This chapter discusses an approach for process simulation in the design of melt spinning process for finding optimal design parameters concerning spinneret, quench air unit and other technical parameters for maximum throughput and quality. The property of as-spun fiber is a function of structural parameters at a given condition and orientation of the structural
2019年4月30日 Today, melt spinning of polymers is the most commonly used method for manufacturing commercial synthetic fibers, due to high spinning velocities and the simplicity of the production line. Ongoing research efforts ensure that fibers and textiles remain high value-added products.
2019年12月1日 The islands-in-sea spinning method involves melt spinning a ‘sea’ and an ‘island’ part of the polymer at a speed of 400 to 6000 m/min [134]. Upon dissolution and removal of the ‘sea’ polymer from the composite fiber, a group of fine fibers is obtained with a thickness from 10 to 1000 nm [134] .
2018年12月12日 This paper reviews the process for the preparation of polymer nanofibers via melt spinning developed in recent years, ... Spinning Apparatus” [P]. U.S.A: 7763228B, 2010.
Authors: Jason Gunther, Jacques Lengaigne, Mélanie Girard, Valérie Toupin-Guay, James T. Teasdale, Martine Dubé, Ilyass Tabiai Abstract: The centrifugal spinning (CS) method could address common issues such as low production rate and high energy consumption in the industry of nonwoven textile fabrication. Similarly to cotton candy production, the high-speed rotating
The structural changes during melt spinning process of polyethylene, polypropylene and polybutene-1 were studied making use of direct measurements. A model spinning apparatus was devised for this purpose. Measurements of diameter, birefringence and surface temperature were carried out. Wide and small angle x-ray photographs were taken at the successive points
apparatus have appeared to prepare for various nano-fibres, such as vibration electrospinning, melt electro-spinning, siro-electrospinning, magneto-electrospinning and bubble electrospinning.
SummaryThe structural changes during melt spinning process of polyethylene, polypropylene and polybutene-1 were studied making use of direct measurements. A model spinning apparatus was devised for this purpose. Measurements of diameter, birefringence and surface temperature were carried out. Wide and small angle x-ray photographs were taken at the successive points
2022年6月10日 Fibers and yarns are part of everyday life. So far, fibers that are also used pharmaceutically have mainly been produced by electrospinning. The common use of spinning oils and the excipients they contain, in connection with production by melt extrusion, poses a regulatory challenge for pharmaceutically usable fibers. In this publication, a newly developed
2019年5月17日 To decrease the viscosity of the low-melt flow index LDPE, the spinning temperature was set at the range (315–355 °C) right below the decomposition temperature (360–400 °C). ... the relative complexity of the design and the operation process, larger fiber diameter, and few portable commercialized melt electrospinning apparatus.
2010年11月1日 spinning apparatus such as vibration–melt electrospinning. and aero-melt electrospinning, as shown in Figs. 11–13. Hot air is applied i n aero-elec trospinni ng (see. Fig. 13).
A centrifuge is a laboratory apparatus that separates fluids, gaseous or liquid, according to density. Separation is accomplished by rapidly spinning a centrifuge tube containing the substance. A centrifuge machine is based on the principle of sedimentation, though the process is far more efficient and rapid than natural sedimentation.
DOI: 10.1016/j.ohx.2023.e00454 Corpus ID: 259930975; A versatile hot melt centrifugal spinning apparatus for thermoplastic microfibres production @article{Gunther2023AVH, title={A versatile hot melt centrifugal spinning apparatus for thermoplastic microfibres production}, author={Jason Gunther and Jacques Lengaigne and Melanie Girard and Val{\'e}rie Toupin-Guay and James
PCL fibrous membrane has good biocompatibility and can be in situ electrospun to wound surface as a wound dressing by the portable melt e-spinning gun which can work without any external power supply. Background Electrospun (e-spun) nanofibers for wound dressing have attracted wide attention due to its large specific surface area, large porosity and breathability.
Figure 1: Melt flow index test apparatus. ... Polypropylene with an MFI of 10 g/10 min can be used to make bulk continuous filament spinning [2]. Process. MFI (g/10 min) Products. Fiber spinning. 3.6. Monofilament. Injection molding . 8.5. Dumb bell.
حقوق الطبع والنشر: شركة خنان ليمينغ لتكنولوجيا الصناعة الثقيلة المحدودة. رخصة أعمال
