Influence of Structural Feature of Aluminum Coatings on Mechanical and Water Barrier Properties of Metallized PET Films

阅读量：

作者：

展开

摘要：

This article focuses on description and evaluation of multilayer films, which are used for vacuum insulation panels (VIP). The materials investigated include a neat polyethylene terephthalate (PET) and PET films coated by chemical vapor deposition with different aluminum thicknesses. The aim of these investigations was to evaluate the influence of structural features on the physical properties of Al/PET systems. The morphological analyzes associated to water vapor permeability measurements showed that the metallized surface exhibited defects through which a small amount of water vapor can permeate. It is shown that the permeance varies linearly with the surface fraction occupied by pinholes which in turn changes linearly with the aluminum thickness. 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

展开

关键词：

Experimental/ aluminium CVD coatings permeability polymer films stress-strain relations tensile strength/ aluminum coatings water barrier metallized PET films multilayer films vacuum insulation panels polyethylene terephthalate films chemical vapor deposition water vapor permeability Al/ A8140L Deformation, plasticity and creep A6220F Deformation and plasticity A6860 Physical properties of thin films, nonelectronic/ Al/el