Slip Masterbatch

A high coefficient of friction (CoF) during the production of polymeric films can cause sticking between similar polymer films or between polymer films and other surfaces. This leads to complications in the production process of thin films, reduces production speed, and affects film storage, packaging, and final application. To solve this issue, slip additive masterbatches are used. After the extrusion process, these additives migrate to the surface of the film based on their type and activation speed, forming a thin layer. This layer reduces the coefficient of friction between film layers or between the film and any other surface it comes into contact with, allowing films to slide more easily over each other or on other surfaces.

How Slip Masterbatches Work

The structure of slip masterbatches, such as Beslip® (commonly known as “SarKhor” in the market), is designed to disperse within the bulk of polyolefin-based products. Due to their fatty acid nature, they gradually migrate to the film surface, forming a lubricating layer. This layer ultimately reduces friction, enabling smoother and easier film movement. Initially, the additive is uniformly distributed throughout the material, but over time it migrates to the polymer surface, providing surface slipperiness. Factors such as the CoF requirement, type of polymer used, process temperature, film surface morphology, other additives, and final application determine the appropriate type and dosage of slip masterbatch.

Beslip® Slip Masterbatches by Behsa Polymer Pars

Behsa Polymer Pars produces slip masterbatches using primary and secondary amides derived from fatty acids. Beslip® masterbatches migrate to the surface at an appropriate rate and form a stable slip layer on the film or polymer piece. The usage percentage of Beslip® in a polymer compound depends on the type of polymer and the required CoF level. Moreover, the migration speed is influenced by the chemical structure of the additive used.

Applications of Slip Masterbatch

Beslip® masterbatch is one of the most practical additives in the nylon and polyethylene film industry. It is widely used across various industries for producing different plastic films such as OPP, BOPP, PE, and PP films. Other industrial applications of Beslip® include film separation, improving mechanical properties, reducing surface adhesion, and similar purposes.

Advantages of Using Slip Masterbatch

• Reduces the coefficient of friction in plastic films
• Enhances printability of plastic films
• Facilitates easier transportation of plastic films
• Reduces the risk of film damage (tearing and scratching)
• Enables the production of glossy plastics with shiny surfaces

Purchasing Slip Masterbatch

For more information or to purchase slip masterbatches from Behsa Polymer Pars, please contact our sales experts.