Biotic degradation of poly(DL-lactide) based nanocomposites
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Scholar |
Altres documents de l'autoria: Fukushima, K.; Giménez Torres, Enrique; Cabedo, Luis; LAGARON, Jose; Feijoo, J. L.
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Mostra el registre complet de l'elementcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
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http://dx.doi.org/10.1016/j.polymdegradstab.2012.05.029 |
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Títol
Biotic degradation of poly(DL-lactide) based nanocompositesData de publicació
2012Editor
ElsevierISSN
0141-3910; 1873-2321Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://ac.els-cdn.com/S0141391012002030/1-s2.0-S0141391012002030-main.pdf?_tid=d ...Paraules clau / Matèries
Resum
Amorphous PLA nanocomposites based on organic modified kaolinite (KAO) and montmorillonite
(MONT) at 4 wt.% were prepared by melt blending and then biodegraded in compost. All materials
showed effective degradation ... [+]
Amorphous PLA nanocomposites based on organic modified kaolinite (KAO) and montmorillonite
(MONT) at 4 wt.% were prepared by melt blending and then biodegraded in compost. All materials
showed effective degradation in this medium, according to visual observations, DSC and FTIR analysis.
The addition of nanoclays was found to increase the PLA degradation rate, especially for kaolinite, due to
the presence of hydroxyl groups belonging to the silicate layers of these clays. Addition of MONT to PLA
also has a catalytic effect on polymer degradation in compost, but only in the last stages of degradation.
In the early stages, MONT tends to delay the degradation of PLA probably due to its higher dispersion
level into the polymer matrix as compared to KAO, creating a barrier effect of MONT layers towards water
hydrolysis on PLA ester groups. [-]
Publicat a
Polymer Degradation and Stability 97 (2012)Drets d'accés
© 2012 Elsevier Ltd. All rights reserved.
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