Increasing the surface tension of the pet film to improve the bonding performance of the surface-technical knowledge

Improve the surface tension of the pet film to improve the adhesion performance of the surface Source: protective film factory direct release time: 2019-10-29 click: 1484 PET polyester film has low surface tension, less affinity for coating liquid, and PET The polyester film has high crystallinity, and it is not easy to be swollen by the coating liquid after being coated with 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. Foshan Bowei Environmental Protection Material Co., Ltd. is an electronic material supplier with 20 years of experience. It can produce PET film with multiple 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!