Characterisation and thermal properties of titanium dioxide nanoparticles-containing biodegradable polylactide composites synthesized by sol-gel method

Nikiwe Mhlanga, Suprakas Sinha Ray

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

This study reports the synthesis, characterisation and thermal properties of polylactide (PLA)/titanium dioxide nanoparticles (TiO2 NPs) composites using the sol-gel method. The percentage weight of TiO2 NP sol was varied from 3, 8, 11 and 14. The synthesised composites were characterised using scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction, energy dispersive X-ray spectroscopy (EDS), thermogravimetric analysis and dynamic mechanical analysis. Encapsulation of the TiO2 into the PLA matrix was attainable based on the SEM images and the FTIR and EDS results. The thermal stability of the composites was shifted to lower temperatures due to photodegradation induced by the metal oxide on the PLA chain. Both PLA and TiO2 NPs have potential in drug delivery because of their biocompatibility and biodegradability.

Original languageEnglish
Pages (from-to)4269-4277
Number of pages9
JournalJournal of Nanoscience and Nanotechnology
Volume14
Issue number6
DOIs
Publication statusPublished - Jun 2014

Keywords

  • Composites
  • Polylactide
  • Synthesis and characterization
  • Thermal properties
  • Titanium dioxide nanoparticles

ASJC Scopus subject areas

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

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