title: Wiping frictional properties of electrospun hydrophobic/hydrophilic polyurethane nanofiber-webs on soda-lime glass and silicon-wafer.
abstract: In the present work, we conducted the frictional tests of hydrophobic and hydrophilic polyurethane (PUo and PUi) nanofiber webs against engineering materials; soda-lime glass and silicon wafer. PUi/glass combination, with highest hydrophilicity, showed the highest friction coefficient which decrease with the increase of the applied load. Furthermore, the effects of fluorine coating are also investigated. The friction coefficient of fluorine coated hydrophobic PU nanofiber (PUof) shows great decrease against the silicon wafer. Finally, wiping ability and friction property are investigated when the substrate surface is contaminated. Nano-particle dusts are effectively collected into the pores by wiping with PUo and PUi nanofiber webs both on glass and silicon wafer. The friction coefficient gradually increased with the increase of the applied load.
authors.affiliation: Faculty of Textile Science and Technology, Nano Fusion Technology Research Laboratory, Shinshu University, 3-15-1 Tokida, Ueda-City, Nagano 386-8567, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Watanabe
authors.forename: Kai
authors.initials: K
authors.lastname: Wei
authors.forename: Ryu
authors.initials: R
authors.lastname: Nakashima
authors.forename: Ick Soo
authors.initials: IS
authors.lastname: Kim
authors.forename: Yuji
authors.initials: Y
authors.lastname: Enomoto