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saintflyer银虫 (小有名气)
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[交流]
静电纺丝制备纳米材料的2篇经典综述
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1. Andreas Greiner, J. W., Angewandte Chemie International Edition 46, 5670 2007. Electrospinning is a highly versatile method to process solutions or melts, mainly of polymers, into continuous fibers with diameters ranging from a few micrometers to a few nanometers. This technique is applicable to virtually every soluble or fusible polymer. The polymers can be chemically modified and can also be tailored with additives ranging from simple carbon-black particles to complex species such as enzymes, viruses, and bacteria. Electrospinning appears to be straightforward, but is a rather intricate process that depends on a multitude of molecular, process, and technical parameters. The method provides access to entirely new materials, which may have complex chemical structures. Electrospinning is not only a focus of intense academic investigation; the technique is already being applied in many technological areas. 下载衔接：http://www.namipan.com/d/795abe3 ... dfd0cea6fb1cbf51e00 2. Reneker, D. H.; Yarin, A. L., Polymer 49, 2387 2008. In electrospinning, polymer nanofibers are formed by the creation and elongation of an electrified fluid jet. The path of the jet is from a fluid surface that is often, but not necessarily constrained by an orifice, through a straight segment of a tapering cone, then through a series of successively smaller electrically driven bending coils, with each bending coil having turns of increasing radius, and finally solidifying into燼 continuous thin fiber. Control of the process produces fibers with nanometer scale diameters, along with various cross-sectional shapes, beads, branches and buckling coils or zigzags. Additions to the fluid being spun, such as chemical reagents, other polymers, dispersed particles, proteins, and viable cells, resulted in the inclusion of the added material along the nanofibers. Post-treatments of nanofibers, by conglutination, by vapor coating, by chemical treatment of the surfaces, and by thermal processing, broaden the usefulness of nanofibers. 下载衔接http://www.namipan.com/d/e2c5720 ... 32fc61e3a34fd9a9500 [ Last edited by saintflyer on 2008-6-1 at 20:53 ] |
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