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

  • 45 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.

LanguageEnglish (US)
Pages2810-2820
Number of pages11
JournalJournal of Applied Polymer Science
Volume118
Issue number5
DOIs
StatePublished - Dec 5 2010

Profile

Maleic Anhydrides
Talc
Maleic anhydride
Acids
Composite materials
Microstructure
Reinforcement
Tensile strength
Adhesion
poly(lactic acid)
Scanning electron microscopy

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

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