چكيده به لاتين
In this article, surface modification of BOPP has been carried out via two different plasma reactors; Dielectric Barrier Discharge (DBD) and Gliding Arc (GA). In depth and comprehensive analysis has been utilized to investigate the plasma-induces alterations of the surface characterstics. For studying the chemical compostion of the surfaces, FTIR, Energy Dispersive X-Ray Spectroscopy (EDS) and XPS (X-ray photoelectron spectroscopy) have been used. For identifying the changes in the morphology of the surface, Atomic Force Microscopy (AFM) and Field Emission Scanning Electron Microscopy (FE-SEM) have been employed. Contact Angle measurement (CAM) has been done in sessile drop method to evaluate the degree of surface hydrophobicity/hydrophilicity and to calculate the Surface Free Energy (SFE) values. Samples have been analyzed by means of Grazing Incidence X-ray Diffraction (GIXRD) to assess the variations of the crystallinity due to plasma treatment. Moreover, Ageing and hydrophobic recovery of the modified surfaces were considered during specified period of time. The evaluation of the data collected in this work led to confirm that the plasma surface modification is an effective and reasonable method to improve the surface properties and adhesion of BOPP. However, the main acheivement of the current study was attaing a modification method based of gliding arc reactor that had minus aging and the hydrophilicity of surfaces was growingly improved after modification, even in long periods of time.
Keywords: plasma modification, hydrophilicity, surface energy, roughness, agingtime, functional groupe, thin films
