Fracture behavior study of melt compounded polycarbonate/alumina nanocomposites

Alexander Chandra, Lih Sheng Turng*, Padma Gopalan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Two different molecular weight poly(styrene-maleic anhydride) (SMA) copolymers were used to treat spherical alumina nanoparticles to facilitate dispersion. The treated nanoparticles were then melt compounded with polycarbonate (PC) using a high intensity thermokinetic mixer. It was found that the low molecular weight polymer coating resulted in well dispersed nanoparticles in the nanocomposites with fairly high light transmittance. Furthermore, the addition of the spherical nanoparticles improved the impact strength during brittle fracture of the resultant nanocomposites through the formation of multilevel microcracks and microcrazes induced by the nanoparticles.

Original languageEnglish
Title of host publicationSociety of Plastics Engineers - 66th Annual Technical Conference of the Society of Plastics Engineers, Plastics Encounter at ANTEC 2008
Pages1341-1345
Number of pages5
StatePublished - 2008
Externally publishedYes
Event66th Annual Technical Conference of the Society of Plastics Engineers, Plastics Encounter at ANTEC 2008 - Milwaukee, WI, United States
Duration: 04 05 200808 05 2008

Publication series

NameTechnical Papers, Regional Technical Conference - Society of Plastics Engineers
Volume3

Conference

Conference66th Annual Technical Conference of the Society of Plastics Engineers, Plastics Encounter at ANTEC 2008
Country/TerritoryUnited States
CityMilwaukee, WI
Period04/05/0808/05/08

Keywords

  • Alumina
  • Impact strength
  • Nanocomposites
  • Polycarbonate
  • Toughening mechanism
  • Transparency

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