Naslov
The influence of the dispersed phase on the morphology, mechanical and thermal properties of PLA/PE‐LD and PLA/PE‐HD polymer blends and their nanocomposites with TiO2 and CaCO3

Autori
Lovinčić Milovanović, Vedrana ; Hajdinjak, Ivana ; Lovriša, Ivona ; Vrsaljko, Domagoj

Izvornik
Polymer engineering and science (0032-3888) 59 (2019), 7; 1395-1408

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

Ključne riječi
Morphology ; Mechanical Properties ; Thermal Properties ; PLA

Sažetak
This research investigated the impact of different processing temperature (extrusion at 160°C and 180°C) and the influence of the TiO2 and CaCO3 fillers on morphology, mechanical, and thermal properties of polylactide (PLA) blended with low‐density polyethylene (PE‐LD) and high‐ density polyethylene (PE‐HD) in 90/10 weight ratio. The impact of the particle size of the filler was also examined with the three types of TiO2 filler. It has been shown that the different processing temperature has no significant impact on the morphology, mechanical, and thermal properties of PLA/PE‐LD 90/10 and PLA/PE‐HD 90/10 polymer blends. It has also been shown that better phase interaction is not the crucial factor for the improvement of the mechanical properties but the domain size distribution of the dispersed phase within the matrix and the dispersion of the filler are. Samples with a narrow size distribution of the dispersed phase domain (5 to 10 μm) with the higher portion of larger domains that are uniformly distributed within the polymer matrix showed best mechanical properties.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Temeljne tehničke znanosti

POVEZANOST RADA