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

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

Journal of nanoscience and nanotechnology (2014-04-18)

Nikiwe Mhlanga, Suprakas Sinha Ray

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.

MATERIALS

Product Number

Brand

Product Description

637262

Sigma-Aldrich

Titanium(IV) oxide, rutile, nanopowder, <100 nm particle size, 99.5% trace metals basis

GF91204466

Titanium, wire reel, 5m, diameter 1.0mm, as drawn, 99.6+%

GF26694771

Titanium, wire reel, 20m, diameter 0.125mm, annealed, 99.6+%

GF95731960

Titanium, tube, 500mm, outside diameter 3.0mm, inside diameter 1.5mm, wall thickness 0.75mm, annealed, 99.6+%

GF50624434

Titanium, wire reel, 200m, diameter 0.25mm, annealed, 99.6+%

GF55775975

Titanium, wire reel, 25m, diameter 0.25mm, as drawn, 99.6+%

GF91672139

Titanium, wire reel, 20m, diameter 0.05mm, hard, 99.8%

GF56868766

Titanium, wire reel, 25m, diameter 1.0mm, annealed, 99.6+%

GF00761217

Titanium, wire reel, 200m, diameter 0.25mm, as drawn, 99.6+%

GF96391402

Titanium, wire reel, 25m, diameter 0.20mm, annealed, 99.6+%

GF36425707

Titanium, wire reel, 200m, diameter 0.20mm, annealed, 99.6+%

GF31085760

Titanium, wire reel, 5m, diameter 0.25mm, as drawn, 99.99+%

GF43519945

Titanium, wire reel, 2m, diameter 1.0mm, as drawn, 99.99+%

GF34996685

Titanium, wire reel, 200m, diameter 0.125mm, annealed, 99.6+%

GF46592949

Titanium, wire, straight, 1000mm, diameter 1.0mm, as drawn, 99.6+%

GF43403431

Titanium, wire reel, 500m, diameter 0.20mm, annealed, 99.6+%

GF14377631

Titanium, wire reel, 25m, diameter 0.25mm, annealed, 99.6+%

GF47404201

Titanium, wire reel, 5m, diameter 0.20mm, annealed, 99.6+%

GF91859967

Titanium, rod, 100mm, diameter 9.5mm, annealed, 99.99+%

GF13959939

Titanium, microfoil, disks, 10mm, thinness 0.5μm, specific density 225.4μg/cm², permanent mylar 3.5μm support, 99.6+%

GF87716997

Titanium, rod, 100mm, diameter 16mm, as drawn, 99.99+%

GF66991179

Titanium, rod, 100mm, diameter 2mm, as drawn, 99.99+%

GF04311638

Titanium, rod, 100mm, diameter 6mm, annealed, 99.6+%

GF06082286

Titanium, microfoil, disks, 10mm, thinness 1.0μm, specific density 429μg/cm², permanent mylar 3.5μm support, 99.6+%

GF12929744

Titanium, microfoil, disks, 25mm, thinness 0.25μm, specific density 112.6μg/cm², permanent mylar 3.5μm support, 99.6+%

GF61322699

Titanium, rod, 100mm, diameter 2mm, annealed, 99.6+%

GF23916618

Titanium, microfoil, disks, 25mm, thinness 0.5μm, specific density 225.4μg/cm², permanent mylar 3.5μm support, 99.6+%

GF89377701

Titanium, tube, 100mm, outside diameter 25.4mm, inside diameter 23.62mm, wall thickness 0.89mm, annealed, 99.6+%

GF13900205

Titanium, tube, 100mm, outside diameter 0.51mm, inside diameter 0.35mm, wall thickness 0.08mm, annealed, 99.6+%

GF17705516

Titanium, rod, 200mm, diameter 3.0mm, annealed, 99.6+%