skip to main content
Language:

Biobased additive plasticizing Polylactic acid (PLA)

Polímeros, ciência e tecnologia, 2015-12, Vol.25 (6), p.581-590

This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 0104-1428 ;ISSN: 1678-5169 ;EISSN: 0104-1428 ;DOI: 10.1590/0104-1428.1986

Full text available

Citations Cited by
  • Title:
    Biobased additive plasticizing Polylactic acid (PLA)
  • Author: Maiza, Mounira ; Benaniba, Mohamed Tahar ; Quintard, Guilhem ; Massardier-Nageotte, Valerie
  • Subjects: acetyl tributyl citrate ; plasticizer ; Polylactic acid (PLA) ; POLYMER SCIENCE ; triethyl citrate
  • Is Part Of: Polímeros, ciência e tecnologia, 2015-12, Vol.25 (6), p.581-590
  • Description: Polylactic acid (PLA) is an attractive candidate for replacing petrochemical polymers because it is from renewable resources. In this study, a specific PLA 2002D was melt-mixed with two plasticizers: triethyl citrate (TEC) and acetyl tributyl citrate (ATBC). The plasticized PLA with various concentrations were analyzed by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), melt flow index (MFI), thermogravimetric analysis (TGA), X-ray diffraction (XRD), UV-Visible spectroscopy and plasticizer migration test. Differential scanning calorimetry demonstrated that the addition of TEC and ATBC resulted in a decrease in glass transition temperature (Tg), and the reduction was the largest with the plasticizer having the lowest molecular weight (TEC). Plasticizing effect was also shown by decrease in the dynamic storage modulus and viscosity of plasticized mixtures compared to the treated PLA. The TGA results indicated that ATBC and TEC promoted a decrease in thermal stability of the PLA. The X-ray diffraction showed that the PLA have not polymorphic crystalline transition. Analysis by UV-Visible spectroscopy showed that the two plasticizers: ATBC and TEC have no effect on the color change of the films. The weight loss plasticizer with heating time and at 100°C is lesser than at 135 °C. Migration of TEC and ATBC results in cracks and changed color of material. We have concluded that the higher molecular weight of citrate in the studied exhibited a greater plasticizing effect to the PLA.
  • Publisher: Associação Brasileira de Polímeros
  • Language: English;Portuguese
  • Identifier: ISSN: 0104-1428
    ISSN: 1678-5169
    EISSN: 0104-1428
    DOI: 10.1590/0104-1428.1986
  • Source: SciELO
    DOAJ Directory of Open Access Journals
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait