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Effect of incorporation of graphene oxide and graphene nanoplatelets on mechanical and gas permeability properties of poly(lactic acid) films

Pinto, Artur M, Cabral, Joana, Tanaka, David A. Pacheco, Mendes, Adélio M, Magalhães, Fernão D·2013·Polymer International

Abstract

Nanocomposite thin films of poly(lactic acid) (PLA) were produced incorporating small amounts (0.2 to 1 wt%) of graphene oxide (GO) and graphene nanoplatelets (GNP). The films were prepared by solvent‐casting. Mechanical properties were evaluated for plasticized (by residual solvent) and unplasticized films. Plasticized nanocomposite films presented yield strength and Young's modulus about 100% higher than those of pristine PLA. For unplasticized films improvements in tensile strength and Young's modulus were about 15 and 85%, respectively. For both film types, a maximum in mechanical performance was identified for about 0.4 wt% loadings of the two filler materials tested. Permeabilities towards oxygen and nitrogen decreased, respectively, three‐ and fourfold in films loaded with both GO or GNP. The glass transition temperature showed maximum increases, in relation to unloaded PLA films, of 5 °C for 0.4 wt% GO and 7 °C for 0.4 wt% GNP, coinciding with the observed maxima in mechanical properties. Copyright © 2012 Society of Chemical Industry

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Metadata

Authors
Pinto, A. M., Cabral, J., Tanaka, D. A. P., Mendes, A. M., & Magalhães, F. D.
Venue
Polymer International
Publisher
Wiley
Published
2012-06-21
Volume
62
Issue
1
Pages
33-40
ISSN
  • 0959-8103 (ISSN-L)
  • 1097-0126
OpenAlex
W1894441121
Cited by
326
References
4
FWCI
13.83
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Effect of incorporation of graphene oxide and graphene nanoplatelets on mechanical and gas permeability properties of poly(lactic acid) films. https://app.cochat.ai/papers/10.1002/pi.4290
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Pinto, A. M., Cabral, J., Tanaka, D. A. P., Mendes, A. M., & Magalhães, F. D. (2013). Effect of incorporation of graphene oxide and graphene nanoplatelets on mechanical and gas permeability properties of poly(lactic acid) films. Polymer International. https://doi.org/10.1002/pi.4290

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