Influence of ageing on adhesive properties of polypropylene modified by discharge plasma

✍ Scribed by Igor Novák; Štěpán Florián

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 72 KB
• Volume: 50
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/1097-0126(200101)50:1<49::aid-pi549>3.0.co;2-#

✦ Synopsis

The adhesive properties of isotactic polypropylene with different degrees of crystallinity, surface-modi®ed by corona discharge plasma have been studied, during the process of ageing. Considerable decrease in the surface free energy and its polar component was observed. A signi®cant correlation was found between the mechanical work of adhesion to polyvinyl acetate and the polar fraction during ageing. The in¯uence of the crystallinity of the polymer on the resulting adhesion parameters of aged polypropylene foil was con®rmed.