Measurement of friction between rubber-like polymers and steel
- 1 July 1961
- journal article
- Published by IOP Publishing in Journal of Scientific Instruments
- Vol. 38 (7) , 294-299
- https://doi.org/10.1088/0950-7671/38/7/307
Abstract
A machine for measuring the coefficient of friction between a flat sheet of polymeric material and a ground steel plate is described in detail. An inverted lathe cross slide forms the basis of the drive mechanism. Frictional force is balanced against the tension developed in a spring (proof ring), the extension of which, measured with a commercial displacement pick-up, gives a direct reading of coefficient of friction. A few results are given for a PVC sample plasticized with 40% di-octyl phthalate. A circuit for automatic operation and recording is also described.Keywords
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