The Aging Study on Polyethylene Terephthalate with Surfacern Modification by Water Vapor Plasma

摘要

The aging effects of the contact angle and surface energy on polyethylene terephrnthalate (PET) have been investigated with surface modification by water vapor plasma. The rnexperimental results show that the contact angle of water and PET decreases obviously and surrnface energy increases. However, with the increase of the aging time, the contact angle and surface rnenergy change back gradually to original state.