Blow spinning

There are several techniques that allow to produce polymeric nanofibers, such as drawing, template synthesis, phase separation, self-assembly, solution blow spinning, and electrospinning. The drawing process requires a polymer with appropriate viscoelastic properties that is able to be deformed and kept connected by cohesive forces. Besides being simple and inexpensive, this technique is very limited for conjugate polymers, since most of them have lower solubility and form solutions with a small viscous modulus. 

A technique called solution blow spinning has been developed as an alternative method for making nonwoven webs of micro-and nanofibers down to the nanometer scale with the advantage... 

Figure 1.18 Schematic illustration ofthe solution blow spinning technique.

Medeiros, E.S., et al. 2009. Solution blow spinning a new method to produce micro-and nanolibers from polymer solutions. Journal of Applied Polymer Science 113(4) 2322-2330. 

Post-millenium developments in nanofibre processes (centrifugal spinning, blow spinning, magnetospinning)... 

Figure 4.6 Schematic of solution blow spinning process.

Medeiros ES, Gleim GM, Klamczynski AP, Orts WJ, Mattoso LHC. Solution blow spinning a new metbod to produce micro- and nanofibers from polymer solutions. J Appl Polym Sci 2009 113(4) 2322-30. 

Press-blow-spin Goblets, laboratory tools... 

Goldberg and Rubin [Ind. Eng. Chem. Proce.s.s Des. Dev., 6 195 (1967)] showed in tests with a disk spinning vertically to the foam layer that most mechanical procedures, whether centrifugation, mixing, or blowing through nozzles, consist basically of the application of shear stress. Subjecting foam to an air-jet impact can also provide a source... 

Open-cast molding Fiber spinning Blow molding Injection molding Extrusion/pultrusion Reaction injection molding... 

Glass Melt blowing and spinning High strength Low modulus Low temperature Low cost Insulation Reinforced plastics... 

Polymer scientists and engineers have developed a wide variety of processes by which to convert polypropylene into useable articles. These processes include fiber-spinning, production of melt blown and spun bond non-woven fabrics, film production, blow molding, and injection molding. The following sections describe these processes and the resulting properties of the product as a function of the process. 

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