The ISO 8295 test method is used to investigate the static and dynamic frictional properties of film and sheet plastics when sliding on itself or other materials. This method is intended to be used for non-sticky plastic film and sheeting of up to 0.5 mm thickness.
In principle, the test specimen is supported on a friction table, consisting of a horizontal test table, a sled, and a driving mechanism via a pulley to produce a relative motion between the sled and the test table. One piece of the material is attached to the table with double sided adhesive tape. The other piece is wrapped around the sled and secured on the top of the sled with double-sided adhesive tape. This sled is then placed onto the specimen on the table. The test machine is driven at a constant rate of displacement, which drags the sled across the length of the specimen on the table. The force is recorded, and test results are calculated for static and kinetic coefficient of friction.
We use a coefficient of friction table fitted to a tensile testing machine. This is usually of single-column or dual-column table-top design. Using a materials testing software, such as Bluehill® 2, allows you to input specimen details, set the desired test control, automatically calculate the desired results and statistics, and produce a test report all in accordance with the standard.
We suggest reviewing ISO 8295 to fully understand the test fixture and results requirements.