Importance of concomitant strengthening and toughening in nanoclay reinforced polymers

Shing Chung Wong*, Ling Chen, Chaobin He, Xuehong Lu

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Fracture properties and deformation mechanisms of nanoclay reinforced polypropylene (PP) modified with maleic anhydride were investigated. Elastic-plastic fracture mechanics was employed to characterize the toughness in light of substantial post-yield deformation for the reinforced maleated PP. Upon introduction of 2.5 wt% clay loading, it was observed that tensile strength, modulus and fracture initiation toughness concomitantly increased substantially. Continued increase in clay loading only led to stiffening and strengthening effects to the detriment of fracture toughness. Deformation mechanisms were examined using electron microscopy and small angle X-ray scattering.

Original languageEnglish
Pages1815-1819
Number of pages5
Publication statusPublished - 2004
Externally publishedYes
EventANTEC 2004 - Annual Technical Conference Proceedings - Chicago, IL., United States
Duration: May 16 2004May 20 2004

Conference

ConferenceANTEC 2004 - Annual Technical Conference Proceedings
Country/TerritoryUnited States
CityChicago, IL.
Period5/16/045/20/04

ASJC Scopus Subject Areas

  • General Chemical Engineering
  • Polymers and Plastics

Keywords

  • Nanocomposites
  • Polypropylene
  • Toughness

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