Surface treatment of PET polyester film-technical knowledge

Source of surface treatment of PET polyester film: protective film factory direct sales Release time: 2019-06-26 Click: 1865 PET polyester film has low surface tension, less affinity for coating liquid, and PET polyester film crystals The degree is higher, and the coating liquid is not easy to be swollen by the coating liquid to cause intermolecular diffusion, so the adhesion is relatively poor. Therefore, treating the surface of the PET film substrate can increase its surface tension, reduce its surface crystallinity, and improve its surface adhesion. At present, the common treatment methods for PET polyester film at home and abroad include chemical oxidation treatment, photochemical treatment, plasma treatment, corona discharge treatment and primer treatment. The photochemical treatment and corona treatment have a certain timeliness, and the treatment cost is relatively high; the primer treatment is not affected by temperature and humidity changes, and is suitable for product assembly line production. The purpose of polymer surface modification is to change the appearance, supramolecular structure, defect or stress state, chemical composition, etc. Surface area, the weak boundary layer is removed, thereby improving the mechanical, chemical, mechanical, optical, electrical and other properties of the polymer surface, enhancing the function of the polymer, and expanding their application fields. Foshan Bowei Environmental Protection Material Co., Ltd. is an electronic material supplier with 20 years of experience. It can produce PET film with various functions, such as: sub-(matte) PET film, flame-retardant (fire-resistant) PET film, inkjet printing Film, anti-static PET film, anti-fog PET film, anti-UV PET film, non-shrinking PET film, PET release film, optical PET film, etc. Interested parties welcome to inquire!