Lubricating masterbatch
High coefficient of friction (CoF) in the production process of polymer films, leads to adhesion between the polymer film with process surfaces (including metal surfaces) or other surfaces and as a result of process disruption, reduced production speed and so on. To solve this problem, lubricating additive masterbatches are used. Lubricating additives migrate rapidly on the surface after the extrusion process to form a layer on the surface. This layer reduces the coefficient of friction between the film layers or the film with any other surface it comes in contact with, resulting in better and easier separation of the film from the surface. The most widely used additives in lubricating masterbatches are amides of the first type and derivatives of fatty acids. The concentration of lubricating masterbatch depends on the type of polymer and the degree of CoF required and the rate of migration depends on the chemical structure of the additive.
Advantages
- Reduce the coefficient of friction
- Reduce the adhesion of film surfaces to each other
- Increase the quality of the movie level
- Create films with very smooth and polished surfaces
- Ease of production process
- Ease of handling and transporting polymer films
- Improved printability
