Thermal and thermomechanical properties of poly(butylene succinate) nanocomposites

Mamookho E. Makhatha, Suprakas Sinha Ray, Joseph Hato, Adriaan S. Luyt

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

This article describes the thermal and thermomechanical properties of poly(butylene succinate) (PBS) and its nanocomposites. PBS nanocomposites with three different weight ratios of organically modified synthetic fluorine mica (OMSFM) have been prepared by melt-mixing in a batch mixer at 140°C. The structure and morphology of the nanocomposites were characterized by X-ray diffraction (XRD) analyses and transmission electron microscopy (TEM) observations that reveal the homogeneous dispersion of the intercalated silicate layers into the PBS matrix. The thermal properties of pure PBS and the nanocomposite samples were studied by both conventional and temperature modulated differential scanning calorimetry (DSC) analyses, which show multiple melting behavior of the PBS matrix. The investigation of the thermomechanical properties was performed by dynamic mechanical analysis. Results reveal significant improvement in the storage modulus of neat PBS upon addition of OMSFM. The tensile modulus of neat PBS is also increased substantially with the addition of OMSFM, however, the strength at yield and elongation at break of neat PBS systematically decreases with the loading of OMSFM. The thermal stability of the nanocomposites compared to that of the pure polymer sample was examined under both pyrolytic and thermooxidative environments. It is shown that the thermal stability of PBS is increased moderately in the presence of 3 wt% of OMSFM, but there is no significant effect on further silicate loading in the oxidative environment. In the nitrogen environment, however, the thermal stability systematically decreases with increasing clay loading.

Original languageEnglish
Pages (from-to)1679-1689
Number of pages11
JournalJournal of Nanoscience and Nanotechnology
Volume8
Issue number4
DOIs
Publication statusPublished - Apr 2008
Externally publishedYes

Keywords

  • Nanocomposites
  • Organically modified synthetic fluorine mica
  • Poly(butylene succinate)
  • Thermal and thermo-mechanical properties

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • Biomedical Engineering
  • General Materials Science
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Thermal and thermomechanical properties of poly(butylene succinate) nanocomposites'. Together they form a unique fingerprint.

Cite this