Surface functionalization of poymer films

摘要

Th surface of polymer films is often functionalized to failitate additional operations that range from printing and laminating to vacuum metallizing, Surface moidification can be implemented by various processs such as surface treatment, polymer coatings and co-extruded "polymer skins". This paper reviews state of the art functionalization methods that include flame and plasma treatment, polymer coatings applied in ambient pressure by conventional coating techniques and radiation cured polymer coatings depositied in a vacuum environmnt. The modified surface characteristics address a variety of application specific propertis that include wet-ability, adhesion, release, seal-ability, printability, gas and moisture barrier, and optical, electrical, and abrasion resistance. The feasibility of using such operations in wide polymer webs is discussed along with characterization data of modified polymer film surfaces.