Скачать или смотреть ASTM D1894 | Coefficient of Friction Test | Dak System Inc

Dak System Inc's video on ASTM D1894 / Coefficient of friction test. This test is used to measure the static friction and kinetic friction.

Measurements of frictional properties may be made on a film or sheeting specimen when sliding over itself or over another substance. The coefficients of friction are related to the slip properties of plastic films that are of wide interest in packaging applications. These methods yield empirical data for control purposes in film production. Correlation of test results with actual performance can usually be established.

Slip properties are generated by additives in some plastic films, for example, polyethylene. These additives have varying degrees of compatibility with the film matrix. Some of them bloom, or exude to the surface, lubricating it and making it more slippery.

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