Effects of Polyolefin Formulation and Processing Variables on Slip Agent Performance (1), 1998 Polymers, Laminations & Coatings Conference Proceedings
Slip or friction at a polyolefin surface is governed by many factors. In materials which inherently have a high Coefftcient of Friction (CoF), or poor slip, the major effect will be caused by the addition of a slip agent. Slip agents, the most important class of which are fatty acid amides, work by migrating to the surface of the polymer and forming a layer or layers along which there is a reduced resistance to sliding. The slip performance of these additives is influenced by many factors including the measurement method, amide type, its purity, polymer type, the presence of other additives, processing conditions, storage conditions and in service conditions.
The work presented in this paper is part of an ongoing project to more fully understand the phenomena of slip and illustrates with examples the above effects.
Effects of Polyolefin Formulation and Processing Variables on Slip Agent Performance (1), 1998 Polym