Naslov
Reduced water permeability of biodegradable PCL nanocomposite coated paperboard packaging

Autori
Bota, Josip ; Vukoje, Marina ; Brozović, Maja ; Hrnjak-Murgić, Zlata

Izvornik
Chemical and biochemical engineering quarterly (0352-9568) 31 (2017), 4; 417-424

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
paperboard packaging ; water permeability ; nanocomposite ; biodegradable polymer

Sažetak
In this paper, we studied properties of printed paperboard samples coated with biodegradable PCL polymer which was considered to overcome the disadvantages (barrier properties) of a paper-based material. Additionally, the samples were coated with PCL modified with SiO2 and Al2O3 nanoparticles. The characterization of the coated paperboard (with print) samples was made by determination of water vapor transmission rate (WVTR), contact angle of water and its evolution over time, and mechanical and visual properties. The samples were also examined by SEM microscopy. The results show that PCL and PCL coatings modified with SiO2 and Al2O3 nanoparticles slow down the water vapor transmission rate when compared to the paperboard without coatings. The water contact angle measurements show an increase of hydrophobicity in paperboard coated with PCL- SiO2, while PCL-Al2O3 shows a decrease when compared to neat paperboard and paperboard coated with neat PCL. Studied coated samples also improve mechanical properties of paperboard while preserving the visual properties of print.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Grafička tehnologija, Kemijsko inženjerstvo, Interdisciplinarne tehničke znanosti

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