Materials e.g. polymer films such as paint, rheological, tribological and adherence properties measuring process, involves obtaining properties from values of normal force and instantaneous tangential force exerted by sphere portion

摘要

The process involves imposing to a sphere portion (501) a rotation movement of maximum amplitude around an axis (509) passing through the center of the sphere. Instantaneous tangential force exerted by the portion is measured at the level of a contact region (512). The rheological, tribological and/or adherence properties are obtained from applied normal force and the tangential force values. The normal force has a given value at the level of the contact region (512) between the sphere portion (501) and the region of the sample. An independent claim is also included for a device to measure rheological and tribological properties of a material.