The effect of maleinized linseed oil as biobased plasticizer in poly(lactic acid)‐based formulations

Jose M Ferri; Daniel Garcia‐Garcia; Nestor Montanes; Octavio Fenollar; Rafael Balart

doi:10.1002/pi.5329

journal article Feb 23, 2017

The effect of maleinized linseed oil as biobased plasticizer in poly(lactic acid)‐based formulations

Jose M Ferri Daniel Garcia‐Garcia Nestor Montanes

Octavio Fenollar Rafael Balart

Polymer International Vol. 66 No. 6 pp. 882-891 · Wiley

View at Publisher Save 10.1002/pi.5329

Abstract

AbstractThe use of maleinized linseed oil (MLO) as a potential biobased plasticizer for poly(lactic acid) (PLA) industrial formulations with improved toughness was evaluated. MLO content varied in the range 0–20 phr (parts by weight of MLO per hundred parts by weight of PLA). Mechanical, thermal and morphological characterizations were used to assess the potential of MLO as an environmentally friendly plasticizer for PLA formulations. Dynamic mechanical thermal analysis and differential scanning calorimetry revealed a noticeable decrease in the glass transition temperature of about 6.5 °C compared to neat PLA. In addition, the cold crystallization process was favoured with MLO content due to the increased chain mobility that the plasticizer provides. PLA toughness was markedly improved in formulations with 5 phr MLO, while maximum elongation at break was obtained for PLA formulations plasticized with MLO content in the range 15–20 phr. Scanning electron microscopy revealed evidence of plastic deformation. Nevertheless, phase separation was detected in plasticized PLA formulations with high MLO content (above 15–20 phr MLO), which had a negative effect on overall toughness. © 2017 Society of Chemical Industry

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Details

Published: Feb 23, 2017
Vol/Issue: 66(6)
Pages: 882-891
License: View

Authors

J

Jose M Ferri