High purity silica dioxide is commonly used as a filler in plastic polyester film production. It enhances the film's
mechanical properties, such as tensile strength, tear resistance, and dimensional stability. Silica dioxide also
improves the film's transparency, heat resistance, and barrier properties against moisture and gases.
In plastic polyester film production, high purity silica dioxide is typically added to the polyester resin during the
extrusion process. It is mixed with the resin in a specific ratio to achieve the desired film properties. The silica
dioxide particles disperse evenly in the resin matrix, reinforcing the film structure and improving its overall
performance.
The high purity of silica dioxide ensures that it does not introduce impurities or contaminants into the film. This is crucial
for applications where a clean and pure film is required, such as food packaging or optical films. High purity silica dioxide
also helps to minimize film defects, such as pinholes or surface roughness.
Overall, high purity silica dioxide is an essential ingredient in the production of plastic polyester films, providing improved
mechanical properties, transparency, heat resistance, and barrier properties.
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent, PET
