COF of LLDPE films as a function of erucamide surface concentration

摘要

The surface of a polymer film can be modified by allowing additives within the film to diffuse to the surface and accumulate there. Some of the most commonly used surface-property modifiers are slip, antifogging and antistatic agents. Erucamide is a slip agent widely used to reduce coefficient of friction (COF) of polymer films. This research focused on quantifying the relationship between erucamide surface concentration and COF of LLDPE films. The surface concentration was measured using surface washing, and results showed that there were significant COF changes in the surface-concentration range of 0 to 0.5 μg/cm~2.