PBT vs PET: Molecular Structure, Crystallization Behavior and Modification Strategies
From engineering plastics and precision injection molding to modified polyester fibers, films and packaging Executive Summary Polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) belong to the same family of aromatic polyesters, but their molecular structures give them significantly different crystallization and processing behavior. The key difference is the glycol component: PET is based on ethylene […]
The Impact of Silica Content on Matte Polyester Film Properties

Biaxially oriented polyethylene terephthalate (BOPET) film is a material that is widely used because it is easy to process and has good overall performance. When a large amount of inorganic powder, such as silica, is mixed into the polyester film, it creates a matte finish. This matte finish gives the film a low gloss and […]