Preparation and characterization of PLA/PBAT/CNC blend nanocomposites

In this study, the effect of cellulose nanocrystals (CNCs) on the properties of polylactide (PLA)/poly(butylene adipate- co -terephthalate) (PBAT) blends was investigated. Samples were prepared via (i) solution casting (SC) and (ii) combination of solution casting and melt mixing through twin-screw...

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Veröffentlicht in:Colloid and polymer science 2021-06, Vol.299 (6), p.987-998
Hauptverfasser: Sarul, Deniz Sema, Arslan, Dogan, Vatansever, Emre, Kahraman, Yusuf, Durmus, Ali, Salehiyan, Reza, Nofar, Mohammadreza
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container_end_page 998
container_issue 6
container_start_page 987
container_title Colloid and polymer science
container_volume 299
creator Sarul, Deniz Sema
Arslan, Dogan
Vatansever, Emre
Kahraman, Yusuf
Durmus, Ali
Salehiyan, Reza
Nofar, Mohammadreza
description In this study, the effect of cellulose nanocrystals (CNCs) on the properties of polylactide (PLA)/poly(butylene adipate- co -terephthalate) (PBAT) blends was investigated. Samples were prepared via (i) solution casting (SC) and (ii) combination of solution casting and melt mixing through twin-screw extruder (mTSE). Scanning electron microscopy images revealed the effect of CNC content on the droplet morphology of PBAT dispersed phase. Rheological analysis showed that 3 wt% of CNC formed a strong network in PLA by SC method. Differential scanning calorimetry results depicted the heterogeneous nucleation effect of CNC on PLA’s crystallization in samples prepared by mTSE. Dynamic mechanical analysis illustrated that CNC enhanced the modulus beyond the glass transition temperature of PLA regardless of the preparation method. The tensile and impact properties also elucidated that the existence of any possible residual solvent in blends could dramatically avoid achievement of improvements in ductility and impact properties.
doi_str_mv 10.1007/s00396-021-04822-9
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subjects Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Crystallization
Dynamic mechanical analysis
Food Science
Glass transition temperature
Mixtures
Morphology
Nanocomposites
Nanocrystals
Nanotechnology and Microengineering
Nucleation
Original Contribution
Physical Chemistry
Polylactic acid
Polymer Sciences
Rheological properties
Soft and Granular Matter
Twin screw extruders
title Preparation and characterization of PLA/PBAT/CNC blend nanocomposites
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