Norio Teramae

Slip-reducing mechanism in polypropylene-laminated films

A variety of chemical products are added to commercially available polymer films to give diversity of qualitIes, and analysis of such additives are important for understanding the qualities of the polymers. It is necessary to know the distribution of the additives in the polymer films in order to clarify the physical properties of the film surfaces. Investigating the mechanism of the slip of polymer films is one of the important research themes. It has been known that the slip of laminated films is influenced considerably by lubricants on their surfaces. It has been also found in the process of our research that the slip substantially depends on the type and amounts of lubricants in the films. The present paper reports the slip- reducing mechanisms observed for laminating cast films containing erucic amide as additives.