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

GF52005596

Titanium, tube, 500mm, outside diameter 9.5mm, inside diameter 8.2mm, wall thickness 0.65mm, annealed, 99.6+%

GF51463357

Titanium, tube, 200mm, outside diameter 10.3mm, inside diameter 8.7mm, wall thickness 0.8mm, annealed, 99.6+%

GF58567067

Titanium, rod, 100mm, diameter 5mm, annealed, 99.6+%

GF54883581

Titanium, rod, 1000mm, diameter 3.0mm, annealed, 99.6+%

GF56868766

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

GF41437830

Titanium, tube, 100mm, outside diameter 1.05mm, inside diameter 0.75mm, wall thickness 0.15mm, annealed, 99.6+%

GF91859967

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

GF98611623

Titanium, rod, 200mm, diameter 8.0mm, as drawn, 99.99+%

GF71783354

Titanium, wire reel, 100m, diameter 0.75mm, as drawn, 99.6+%

GF13900205

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

GF26602321

Titanium, tube, 500mm, outside diameter 25.4mm, inside diameter 23.62mm, wall thickness 0.89mm, annealed, 99.6+%

GF72193114

Titanium, tube, 500mm, outside diameter 2.03mm, inside diameter 1.63mm, wall thickness 0.2mm, annealed, 99.6+%

GF69259315

Titanium, rod, 500mm, diameter 6mm, annealed, 99.6+%

GF17705516

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

GF46132534

Titanium, wire reel, 100m, diameter 0.25mm, as drawn, 99.6+%

GF35061083

Titanium, tube, 200mm, outside diameter 6.35mm, inside diameter 5.53mm, wall thickness 0.41mm, annealed, 99.6+%

GF65336700

Titanium, rod, 200mm, diameter 2mm, annealed, 99.6+%

GF05438066

Titanium, tube, 1000mm, outside diameter 1.6mm, inside diameter 1.2mm, wall thickness 0.2mm, hard, 99.6+%

GF14377631

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

GF43403431

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

GF55775975

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

GF95731960

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

GF61322699

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

GF94150593

Titanium, wire reel, 10m, diameter 1.5mm, as drawn, 99.6+%

GF96391402

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

GF76266423

Titanium, wire reel, 0.5m, diameter 1.0mm, annealed, 99.6+%

266035

Sigma-Aldrich

Titanium, wire, diam. 1.0 mm, 99.99% trace metals basis

635057

Sigma-Aldrich

Titanium(IV) oxide, rutile, <001>, (single crystal substrate), ≥99.9% trace metals basis, L × W × thickness 10 mm × 10 mm × 0.5 mm

460400

Sigma-Aldrich

Titanium, wire, diam. 0.25 mm, 99.7% trace metals basis

369489

Sigma-Aldrich

Titanium, foil, thickness 2.0 mm, 99.7% trace metals basis