The effect of maleated polylactic acid (PLA) as an interfacial modifier in PLA-talc composites

Alison C. Fowlks, Ramani Narayan

    Research output: Contribution to journalArticle

    • 40 Citations

    Abstract

    Polylactic acid (PLA)-talc composites were reactively compatibilized using maleic anhydride-functionalized PLA (MAPLA) as an interfacial additive. The effect of MAPLA was investigated based on evaluation of composite properties and examination of the microstructure using scanning electron microscopy. The incorporation of MAPLA contributed to an increase in the crystallinity of PLA in the composites, and when added in an optimal concentration, showed improved tensile strength. Thermo-mechanical measurements indicated the reinforcement effect of the talc and the coupling effect of the MAPLA inclusion. Microscopic studies revealed the composite microstructures along with the corresponding modes of failure which were in accordance with the mechanical behavior. Overall, this investigation provided experimental evidence of enhanced adhesion at the interface, which is believed to be due to the MAPLA addition.

    Original languageEnglish (US)
    Pages (from-to)2810-2820
    Number of pages11
    JournalJournal of Applied Polymer Science
    Volume118
    Issue number5
    DOIs
    StatePublished - Dec 5 2010

    Profile

    Maleic anhydride
    Acids
    Composite materials
    Talc
    Microstructure
    Reinforcement
    Tensile strength
    Adhesion
    Scanning electron microscopy
    Buccal Administration
    Erysipeloid
    Aldicarb
    Helsinki Declaration
    Cyanoacrylates
    Octanols

    Keywords

    • Biodegradable
    • Compatibilization
    • Reactive extrusion

    ASJC Scopus subject areas

    • Materials Chemistry
    • Polymers and Plastics
    • Surfaces, Coatings and Films
    • Chemistry(all)

    Cite this

    The effect of maleated polylactic acid (PLA) as an interfacial modifier in PLA-talc composites. / Fowlks, Alison C.; Narayan, Ramani.

    In: Journal of Applied Polymer Science, Vol. 118, No. 5, 05.12.2010, p. 2810-2820.

    Research output: Contribution to journalArticle

    Fowlks, Alison C.; Narayan, Ramani / The effect of maleated polylactic acid (PLA) as an interfacial modifier in PLA-talc composites.

    In: Journal of Applied Polymer Science, Vol. 118, No. 5, 05.12.2010, p. 2810-2820.

    Research output: Contribution to journalArticle

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    abstract = "Polylactic acid (PLA)-talc composites were reactively compatibilized using maleic anhydride-functionalized PLA (MAPLA) as an interfacial additive. The effect of MAPLA was investigated based on evaluation of composite properties and examination of the microstructure using scanning electron microscopy. The incorporation of MAPLA contributed to an increase in the crystallinity of PLA in the composites, and when added in an optimal concentration, showed improved tensile strength. Thermo-mechanical measurements indicated the reinforcement effect of the talc and the coupling effect of the MAPLA inclusion. Microscopic studies revealed the composite microstructures along with the corresponding modes of failure which were in accordance with the mechanical behavior. Overall, this investigation provided experimental evidence of enhanced adhesion at the interface, which is believed to be due to the MAPLA addition.",
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