Effects of Cumulative Surface Treatment on Vacuum-Deposited Coating Adhesion

摘要

It is known that it is possible to improve adhesion of coatings, including metallization, by using any of a varietyof surface treatments on polymer substrates. It is also known that the surface treatment can be optimized to givemaximum adhesion. But if the treatment is not optimized, the adhesion will be lower. This includes being ableto over-treat the surface and lose some, if not all, of the benefits of the surface treatment. The expectation hasbeen that some of these surface treatments may be cumulative and that it is possible to over-treat the filmbecause of the combination of more than one surface treatment. As most metallized processes are onto eitheroriented polypropylene (OPP) or polyethylene teraphthalate (PET) experiments were conducted on samples ofeach polymer type.