Izvorni znanstveni članak
https://doi.org/10.15255/KUI.2018.011
Thermal Properties of Biodegradable PLA/TPS Blends
Vesna Ocelić Bulatović
; Fakultet kemijskog inženjerstva i tehnologije, Sveučilište u Zagrebu, Marulićev trg 19, 10 000 Zagreb
Emi Govorčin Bajsić
; Fakultet kemijskog inženjerstva i tehnologije, Sveučilište u Zagrebu, Marulićev trg 19, 10 000 Zagreb
Dajana Kučić Grgić
orcid.org/0000-0001-8427-6482
; Sveučilište u Zagrebu, Fakultet kemijskog inženjerstva i tehnologije, Marulićev trg 19, 10 000 Zagreb, Hrvatska
Antun Jozinović
orcid.org/0000-0001-9627-1013
; Sveučilište Josipa Jurja Strossmayera u Osijeku, Prehrambeno-tehnološki fakultet, Franje Kuhača 20, 31 000 Osijek, Hrvatska
Sažetak
In this paper, thermal properties of polylactide (PLA) and thermoplastic starch (TPS) blends with different proportions of TPS were investigated. TPS at different ratios of glycerol (30 and 40 wt. %) as a plasticizer, were prepared. To gain an insight into the hydrophilic/hydrophobic character of the PLA/TPS blends, water absorption was performed. The results of thermal properties indicated that TPS enhanced the cold crystallization process of polylactide due to the nucleation effect of TPS. TPS increases the ability of the PLA crystallization and provides a more accurate alignment of polylactide chains in the crystal structure. The effect of glycerol as a TPS plasticizer has no significant role in the thermal properties, while water absorption testing has shown that with higher glycerol content as TPS plasticizers, lower water absorption values of PLA/TPS blend are obtained.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ključne riječi
polylactide; thermoplastic starch; plastification; glycerol; thermal properties; water absorption
Hrčak ID:
207027
URI
Datum izdavanja:
14.12.2018.
Posjeta: 1.653 *