Preparation and properties of nanocomposites based on poly(lactic acid) and functionalized TiO2

A comparative study of the thermal and dynamic mechanical behaviour of quenched and annealed bioresorbable poly-l-lactide/α-tricalcium phosphate nanocomposites

“…This was thought to be due to the presence of the a-TCP nanoparticles acting as nucleation sites for the formation of PLLA crystallites at lower temperatures. A similar effect of nanoparticles on the T cc of PLLA and other polymer matrices has been reported, providing further evidence that nanoparticles can act as effective nucleating agents to facilitate the crystallization of polymer matrices [32][33][34].…”

Effect of TiO2 nanoparticle loading on Poly(l-lactic acid) porous scaffolds fabricated by TIPS

“…This result shows that crystallization of PLA (both primary and secondary crystallization) was completed during scaffold fabrication. The degree of crystallinity (χ c ,Table 2), calculated from the DSC curves by means of Equation increases with increasing content of TiO 2 nanoparticles in the scaffold, possibly due to an earlier reported nucleating effect of titania on PLA crystallization[27][28][29].XRD patterns of PLA and of its nanocomposite scaffolds, with distinctive crystalline peaks, are given inFigure 2. It can be observed that XRD pattern for pure PLA scaffold shows an intensive reflection at 2θ = 16.6° and a less intense peak at 2θ = 19.0°,corresponding respectively to the (110/200) and (203/113) planes of the orthorombic lattice of the α-form [30].…”

Biocomposite from polylactic acid and lignocellulosic fibers: Structure–property correlations

“…Biodegradable polymers can be applied in packaging and agriculture, but the application range of compostable materials, including PLA, is even wider, it extends from the electronic to the automotive industry, but it can be used also in construction (Ogawa & Obuchi 2010). Often large stiffness and strength is required from structural materials, thus PLA is often modified with inorganic fillers (Chang et al 2003;Fukushima et al 2010;Fukushima et al 2009;Huda et al 2007;Imre et al 2012;Jiang et al 2007;Kasuga et al 2003;Kim et al 2010;Li et al 2009;Li et al 2008;Lin et al 2007;Luo et al 2009;Marras et al 2007;Molnár et al 2009;3 Murariu et al 2008;Nakayama & Hayashi 2007;Rhim et al 2009;Russias et al 2006;Wang et al 2010;Yuzay et al 2010) and with fibers (Ahmed et al 2011;Chen et al 2010;Haque et al 2010;Huda et al 2006b;Liu et al 2012;Shen et al 2009;Wan et al 2001). The combination of PLA with natural fibers is a convenient way to produce compostable material thus the study of the structure and properties of such composites is of large scientific and practical interest (Bax & Müssig 2008;Bledzki et al 2009;Huda et al 2006a;Huda et al 2008;Huda et al 2005;Mathew et al 2005;Oksman et al 2003;Petersson et al 2007;Petinakis et al 2009;…”