OTR and surface-wetting of coated Arboblend V2 Nature sheets

Abstract

The manuscript presents the barrier properties of Arboblend V2 Nature and Arboblend V2 Nature reinforced by coating granules with silver nanoparticles, regarding the contact angle and oxygen transmission rate. Also, are highlighted compression molding stages used in order to obtain the test samples - thin sheets. Following the obtained results is observed that by using the PVD coating the oxygen transmission ratio is reduced up to 32% compared to the base material. This improvement is due to the small silver nanoparticles that were uniformly deposited on the surface of Arboblend V2 Nature granules. In what concern the surface-wetting of the analysed samples, a small but obvious improvement takes place, the difference between the average contact angles being approximatively 5°.