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Title
Japanese: 
English:Theoretical model for adhesive friction between elastomers and rough solid surfaces 
Author
Japanese: 桃園 聡, 京極 啓史, 中村 研八.  
English: Satoshi Momozono, Keiji Kyogoku, Kenya Nakamura.  
Language English 
Journal/Book name
Japanese: 
English:The Journal of Chemical Physics 
Volume, Number, Page Vol. 132    no. 11    Page 114105
Published date Mar. 2010 
Publisher
Japanese: 
English:American Institute of Physics 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL http://link.aip.org/link/JCPSA6/v132/i11/p114105/s1
 
DOI https://doi.org/10.1063/1.3356220
Abstract A theoretical model for the adhesive friction between elastomers and rough solid surfaces is proposed on the asis of opening crack propagation processes at the boundary of the contact interfaces and the rate processes of formation of molecular bonds on the solid surface. This model, which is expressed as a product of the terms related to the two abovementioned processes, requires some measurable and fitted parameters such as the frictional shear strength expressed as a function of viscoelastic dissipation, rate-dependent elasticity, density of bonded molecular chains at a contact junction, critical velocity related to viscoelastic relaxation, and critical velocity related to the rate process of formation of molecular bonds on the solid surface. The friction-velocity relationship exhibits a remarkable fit to previously obtained experimental results for polymers such as engineering rubber, gels, and plastics (glassy polymers), and all fitting parameters are physically reasonable. The viscoelastic index “n” is also related to the “glass-to-rubber transition” of a nanometer-thick polymer layer for frictional behavior. Thus, from a practical viewpoint, this model can be used effectively for fitting the adhesive friction behavior of polymers.

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