Elastic-hydrodynamic transition of gel friction.
We report the surface sliding friction of a high strength gel against a glass substrate under a normal pressure range of 0.01-2.5 MPa. The friction of the gel swollen with different viscous solvents is investigated over a wide velocity range. A velocity-viscosity conversion relationship is established. From the velocity-viscosity conversion relationship, a master curve that is characteristic to the elastic-hydrodynamic transition is observed. The results indicate that the adsorption model proposed by our previous work is valid even under a pressure up to MPa orders, which is the order of pressure that a cartilage sustains in the articular joints.
Kurokawa
Takayuki
T
Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan.
Tominaga
Taiki
T
Katsuyama
Yoshinori
Y
Kuwabara
Rikimaru
R
Furukawa
Hidemitsu
H
Osada
Yoshihito
Y
Gong
Jian Ping
JP
D000327:Adsorption; D004548:Elasticity; D005898:Glass / Q000737:chemistry; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000138:chemical synthesis / Q000737:chemistry*; D007700:Kinetics; D008956:Models, Chemical; D011312:Pressure; D012997:Solvents / Q000737:chemistry; D013499:Surface Properties; D014783:Viscosity
D012997:Solvents; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate