Electrospinning Systems

Fig. 6 Modified electrospinning system with two-capillary spinneret. [Reproduced with permission from [59]. Copyright 2004 American Chemical Society]...

A polymer solution with a concentration of 15 wt% was prepared by dissolving polyacrylonitrile (PAN) in DME PAN solution in DMF was loaded into a 1 ml syringe. A modified electrospinning system consisting of two syringe pumps was used to produce bulky nanofibre mats. The experimental setup of this electrospiiming procedure is shown in Figure 2.4. 

Figure 3.2 Schematic drawing of an extruder-based melt electrospinning system...

Yang, C.R., Jia, Z.D., Guan, Z.C. et al. 2009. Polyvinylidene fluoride membrane by novel electrospinning system for separator of Li-ion batteries. J. Power Sources 189 716-720. 

Figure 7.4 Representation of a co-electrospinning system (a) and electrospinning-electrospraying association (b).

Figure 13.1 Sketch of a simple electrospinning system. The basic setup comprises a syringe pump containing the polymer fluid. The high voltage power supply linked to the metal needle of the syringe pump. / grounded disk collector where the fibers ejected from the syringe is randomly collected...

Li X, Cao Q, Wang X, Jiang S, Deng H, Wu N (2011) Preparation of poly(vinylidene fluoride)/poly(methyl methacrylate) membranes by novel electrospinning system for lithium ion batteries. J Appl Polym Sci 122(4) 2616-2620. doi 10.1002/app.34401... 

Electrospinning is an effective technique to produce continuous polymer fibres with diameters on submicrometre or nanometre scales (Reneker and Chun, 1996, Jayaraman et al 2004, Li and Xia, 2004b). It involves a process in which a polymer solution or melt is stretched into fine filaments under the action of a high electrical voltage. The basic electrospinning system, illustrated... 

Although both polymer solutions and polymer melts have been electrospun into fibres, most studies have been focused on the polymer solution. Literature is scarce on the polymer melt-based electrospiiming process. Therefore, in this chapter, the discussion is limited to the solution-based electrospinning system. 

Voltage Supply Figure 12.2. Schematic of a nozzle-less electrospinning system. 

Wu et al. [93] employed a stationary cylinder spinneret that improved the mass production of nanofibres by 260 times with respect to conventional electrospinning system. Later, fibre uniformity was improved using a strip-distributed solution delivery method. This type of electrospinning is named tipless electrospinning [94]. Figure 4.8 demonstrates different stationary spinnerets. 

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