Soft Matter 2012, 8, 5996. "Unidirectional water-penetration composite fibrous film via electrospinning"
writer：J. Wu, Nv Wang, Li Wang, Hua Dong, Yong Zhao*, Lei Jiang*
keywords：Nanofibers, electrospinning, wettability
source：期刊
specific source：Soft Matter 2012, 8, 5996
Issue time：2012年
A unidirectional water-transfer and wettability gradient compound fibrous film is fabricated by a facile electrospinning technique. One side of the compound film is composite of polyurethane (PU) fibers showing hydrophobicity, and the other side is crosslinked-poly(vinyl alcohol)(c-PVA) fibers exhibiting hydrophilicity. By taking advantages of the hydrophobic-hydrophilic wettability gradient, an interesting unidirectional water-transfer phenomenon has been realized.In brief, water droplet can transfer from the hydrophobic side to hydrophilic side, and spread on hydrophilic side. Additionally, the mechanism of unidirectional water-transfer is proposed.