Basic Principles of Action

Slipping describes the sliding of parallel film surfaces over each other or the sliding of film surfaces over substrates (3). 

The slip agents are added to poly(ethylene) (PE) or poly(propyl- 

In this way, the output of the machine can be increased. Further secondary operations, including packaging operations, cam be accelerated. The slip effect is measured in terms of the coefficient of friction. 

A decreased coefficient of friction results from the migration of slip additive to the film surface. This arises due from incompatibility of the slip additive with the polymer. 

The migration rate of slip agent to the surface is largely caused by the chain length of the additive. Namely, the chain length is related to the compatibility with the polymer. 

---

Figure 10.1 Basic Principle of Action of a Slip Agent...

O.M.Ilinich, Basic Principles of Action of Polymeric Membranes in Liquid Phase Catalytic Processes and Separations of Gaseous Mixtures, Boreskov Institute of Catalysis, Novosibirsk, 1997 (Russian). 

---