Polyurethanes electro spinning

Montini-Ballarin F, Caracciolo PC, Blotta E, Ballarin VL, Abraham GA. Optimization of poly(L-lactic acid)/segmented polyurethane electro spinning process for the production of bilayered small-diameter nanofibrous tubular structures. Mater Sci Eng C 2014 42 489-99. 

As a means of incorporating the fiber sensors into systems, incorporation of in-line fiber sensors into non-woven fabrics was explored. In order to incorporate an in-line sensor into a textile fabric, a spun-bonded base fabric was taken and an in-line fiber sensor was placed on top of it. Subsequently, non-woven fibers of polyurethane were electrospun on top of the optical fiber sensor to hold the sensor fiber in its position, thereby incorporating it in a non-woven fabric matrix. The electro-spinning was carried out at a voltage of 18 KV using a solution of polyurethane in the solvent DMP. 

Cell attachment Thermoplastic polyurethane (TPU)/graphene oxide (GO) scaffolds were fabricated via electro spinning. Higher fibroblast proliferation and endothelial cell attachment were observed on scaffolds with 0.5 wt% GO loading. In addition, oxygen plasma treatment also enhanced endothelial cell viability and adhesion significantly. Jing et al. Composition... 

Figure 16.1 Polyurethane composites of nano-HA (a) and (b), commercially available MasterGrafpM (MG) (c), and bioglass fabricated via electro spinning (a), foaming (b) and (d), and in situ reactive liquid molding (c).

Hu J, Wang X, Ding B, Lin J, Yu J, Sun G (2011) One-step electro-spinning/netting technique for controUably preparing polyurethane nano-fiber/net. Macromol Rapid Commun 32(21) 1729-1734. doi 10.1002/marc.201100343... 

J. Hn, X. Wang, B. Ding, J. Lin, J. Yn, G. Snn, One-step electro-spinning/netting tech-niqne for controllably preparing polyurethane nano-fiber/net, Macromolecular Rapid Communications, 32 (2011) 1729-1734. 

Meng et al (2007a) meanwhile prepared an MWNT/SMPU composite fiber by melt spinning. They found that MWNTs are axially ahgned in the polyurethane fiber, which is helpful in improving the electrical condnctivity of the fiber. The prepared fibers show electro-active shape memory behavior. 

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