Surface treatment of PET polyester film (1)-film supplier
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. PET polyester film has low surface tension and low affinity for coating liquid, and PET polyester film has high crystallinity. After coating the coating liquid, it is not easy to be swelled by the coating liquid to cause intermolecular diffusion, thus bonding Sex 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. Studies have explored the effects of acetone cleaning surface treatment, chemical treatment and Co60 irradiation treatment on the surface of PET polyester film, and the effect on the main element content, adhesive peel strength and water absorption of the polyester film surface. The results show that the durability of the polyester film bonded joints cleaned with acetone is lower than that of the chemical treatment, and the durability of the polyester film bonded joints irradiated with Co60 is the best. Is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service. Interested parties welcome to inquire!