Epdm Rubber Coefficient Of Friction

Dry steel dry steel 0 70 0 57 0 80.

Epdm rubber coefficient of friction.

In the present work friction and sliding wear behaviors of indigenously developed ethylene propylene diene monomer rubber epdm of different hardness have been studied against steel counterpart in dry condition. Static friction is friction between two or more solid objects that are not moving relative to each other. The results of the tests and the simulations were compared with each other and discussed. Static friction results from the normal force of two objects in contact acting opposite the intended motion of one surface against the other.

Both cof and wear rates of the epdm mixes strongly depended on the test configurations. Dry rubber dry steel 0 80 0 76 0 95 dry rubber greasy steel 0 80 0 76 0 95. Epdm rubber has a common use as seals in automobiles. Fric tion force normal load and coefficient of friction cof were determined.

The coefficient of frictions cof and specific wear rates of the epdms were determined. The friction values used in the material interaction table are generalized values based on the following references. Bowden tabor the friction and lubrication of solids oxford. Hardness shore a polymer compound type coefficient of friction.

A similar tendency was found for the cof in rop tests. The friction force is the force exerted by a surface when an object moves across it or makes an effort to move across it. The resistance to polar substances and steam are also good. Further aim of this work was to investigate on how the friction and wear properties of the epdm rubbers depend on the configuration of the testing rigs.

F f frictional force n lb. The maximum force of static friction can be calculated by multiplying the normal force by the coefficient of friction specific to the pair of materials in contact. It was found that with increasing cb content the specific wear rate was reduced. For example static friction can prevent an object from sliding down a sloped surface.

μ static μ s or kinetic μ k frictional coefficient. F f μ n 1. Studies in the literature suggest that the cof between a dry epdm. The frictional force can be expressed as.

The friction coefficient cof of the epdm seal and plate was not experimentally measured and is therefore unknown in this study. The rubber stocks were prepared in a laboratory internal mixer and the curatives were introduced on a laboratory open mill.