Precipitated silica is widely used in the plastic and polymer industry as an antiblocking agent. It helps to prevent the adhesion of polymer films by creating a micro-rough surface, which reduces blocking and improves handling during processing and packaging. This application is particularly important in the production of plastic films, sheets, and packaging materials where the prevention of sticking and blocking is crucial for quality and efficiency. Precipitated silica also offers benefits such as improved slip properties, reduced friction, and enhanced optical properties in plastic and polymer products. Additionally, it can contribute to the overall performance and durability of the materials. Overall, the use of precipitated silica as an antiblocking agent plays a vital role in enhancing the functionality and usability of plastic and polymer products in various industrial applications. Anti-block PET is recommended for using in film, sheets, or plates, giving to the material an optimal anti-blocking effect during extrusion thanks to the micro roughness surface formation, and thus avoid problems during winding. Due to these micro-roughnesses, the contact surfaces between sheets or film blades, are considerably reduced which facilitates their separation and detachment during winding process.

Advantages:

- No reduction in transparency - Low consumption rate - Prevent rapid migration of lubricant - No disruption in the efficiency of other additives - improve function of some additives