'Variables In Flame Treatment And There Effects On Adhesion And Transfer Efficiency Of Automotive Paint Systems'

摘要

In industry today the use of plastics is becoming more widespread due to their increased processability, mechanical strength, and resistance to chemical and environmental attack. However, it is due to this resistance to chemical attack that restricts a plastics ability to be decorated, either by painting or other bonding applications, necessitating the need for surface modification processes to be utilized such as conventional flame treatment.rnIt has been known that the surface properties of plastics can be changed by flame treating the surface prior to any painting or bonding application as means to increase the plastics characteristics of adhesion and promote increased levels of wettability.rnTreatment of the surface with the plasma of a flame imparts oxygen into the surface molecular layers of the substrate in order to increase the surface energy of the treated material. Increasing the surface energy (measured by dynes or contact angle), improves the wettability and provides an improved and consistent surface for further processing to occur, such a painting, printing, bonding, or laminating.