Reaction kinetics of functionalized carbon nanotubes reinforced polymer composites

Jingjing Qiu, Shiren Wang

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Carbon nanotubes (CNTs) were modified by both chemical functionalization and mechanical shortening. The reaction kinetics of these CNTs-reinforced epoxy resins were examined according to the differential scanning calorimetry (DSC) characterization. It was found that kinetics parameters and reaction conversion were significantly influenced by the undertaken functionalization, and the magnitudes of influence were dependent on specific functionalization methodologies. Mechanical shortening of CNTs elevated the size effect-induced interference and diminished the reaction enthalpy and conversion. Chemical modification showed a double-edge effect on the reaction kinetics and the final effect was dependent on the balance of size effect-induced interference and participation of surface functional groups into reaction. Amino-grafted CNTs increased the activation energy of the curing reaction while epoxide-grafted CNTs slightly decreased the activation energy. These results will provide valuable guideline for the nanocomposites design, fabrication, and applications.

Original languageEnglish
Pages (from-to)295-301
Number of pages7
JournalMaterials Chemistry and Physics
Volume121
Issue number1-2
DOIs
StatePublished - May 15 2010

Keywords

  • Carbon nanotubes (CNTs)
  • Functionalization
  • Nanocomposites
  • Reaction kinetics

Fingerprint Dive into the research topics of 'Reaction kinetics of functionalized carbon nanotubes reinforced polymer composites'. Together they form a unique fingerprint.

Cite this