シリカ配合およびカーボン配合SBRの摩耗機構に関する研究 [in Japanese] Studies on the Wear Mechanism of Silica-Filled and Carbon Black-Filled SBRs [in Japanese]
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Wear properties of silica-filled SBR and three kinds of carbon black-filled SBRs were investigated. The wear volume of rubber was measured when rubber specimens were rubbed against metal gauze using a pin-on-cylinder type tribometer.<br>The coefficient of friction consists of adhesion component of friction, μ<sub>A</sub> and hysteresis component of friction, μ<sub>H</sub>. The adhesion component of friction is given by μ<sub>A</sub>=<i>A</i>·<i>s</i>/<i>W</i>, where <i>A</i> is contact area, <i>s</i> is shear strength, <i>W</i> is applied load. It is thought that the wear volume depends on friction energy dissipated.<br>In this paper the wear volume per unit friction energy <i>K</i>/μ<sub>A</sub> was compared with the energy density at break <i>U</i>. It is found that <i>K</i>/μ<sub>A</sub> and 1/<i>U</i> showed linear correlation for the carbon black-filled SBRs, while the silica-filled SBR showed higher <i>K</i>/μ<sub>A</sub> value compared to that of the carbon black-filled SBRs.
GOMU 81(8), 346-350, 2008-08-15
THE SOCIRETY OF RUBBER SCIENCE AND TECHNOLOGYY, JAPAN