12 April 2013 Observation instrument of dynamic friction interface of gel engineering materials with polarized optical microscopic
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Gels are soft and wet materials that differ from hard and dry materials like metals, plastics and ceramics. These have some unique characteristic such as low frictional properties, high water content and materials permeability. A decade earlier, DN gels having a mechanical strength of 30MPa of the maximum breaking stress in compression was developed and it is a prospective material as the biomaterial of the human body. Indeed it frictional coefficient and mechanical strength are comparable to our cartilages. In this study, we focus on the dynamic frictional interface of hydrogels and aim to develop a new apparatus with a polarization microscope for observation. The dynamical interface is observed by the friction of gel and glass with hudroxypropylcellulose (HPC) polymer solution sandwiching. At the beginning, we rubbed hydrogel and glass with HPC solution sandwiching on stage of polarization microscope. Second step, we designed a new system which combined microscope with friction measuring machine. The comparison between direct observation with this instrument and measurement of friction coefficient will become a foothold to elucidate distinctive frictional phenomena that can be seen in soft and wet materials.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Naoya Yamada, Naoya Yamada, Masato Wada, Masato Wada, M. Hasnat Kabir, M. Hasnat Kabir, Jin Gong, Jin Gong, Hidemitsu Furukawa, Hidemitsu Furukawa, } "Observation instrument of dynamic friction interface of gel engineering materials with polarized optical microscopic", Proc. SPIE 8689, Behavior and Mechanics of Multifunctional Materials and Composites 2013, 86890I (12 April 2013); doi: 10.1117/12.2009204; https://doi.org/10.1117/12.2009204


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