Akademska digitalna zbirka SLovenije - logo
VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Comparison of oxygen plasma and cutinase effect on polyethylene terephthalate surface
    Tkavc, Tina ...
    The aim of the study is to activate inert PET surface in order to introduce the carboxyl groups and to obtain its hydrophilic character. Two advanced and environmentally friendly techniques were used ... for these purposes: i) oxygen plasma activation; ii) enzymatic treatment by cutinase. Differently treated PET foils were studied in terms of carboxylic group content (non-aqueous potentiometric titrations, XPS) and hydrophobic/hydrophilic character (goniometry). Moreover, the influence of both activation procedures onto chitosan adsorption was examined by XPS, zeta potential measurements and ATR-FTIR spectroscopy. Obtained results show that plasma activation gives for around 19% higher amount of carboxylic groups than cutinase treatment and is during the storage less stable. Results clearly show that the use of both surfaces activation processes increases the ability of PET foils for chitosan adsorption. Due to the fact that chitosan is an antimicrobial agent, obtained materials may be applied as an active packaging system.
    Vir: Journal of applied polymer science. - ISSN 0021-8995 (Vol. 128, iss. 6, 2013, str. 3570-3575)
    Vrsta gradiva - članek, sestavni del
    Leto - 2013
    Jezik - angleški
    COBISS.SI-ID - 16381206
    DOI

vir: Journal of applied polymer science. - ISSN 0021-8995 (Vol. 128, iss. 6, 2013, str. 3570-3575)
loading ...
loading ...
loading ...