PET (also abbreviated PETE) is short for polyethylene terephthalate, the chemical name for polyester. PET is a clear, strong, and lightweight plastic that is widely used for packaging foods and beverages, especially convenience-sized soft drinks, juices and water. PET typically exhibits low surface energy and poor bonding characteristics. Plasma treatment significantly increases the surface energy of PET resulting in elevated bond strengths.
PET
Before plasma treatment |
after plasma treatment |
Contact Angle 83.76 ± 0.73O | Contact Angle 20.61 ± 1.2O |
Surface energy 43.22 ± 1.19mN/m | Surface energy 74.53 ± 2.16mN/m |