doi: 10.7763/IJAPM.2012.V2.62
Mechanical Properties of Hydrophilicity Modified CaCO<sub>3</sub>-Poly (Lactic Acid) Nanocomposite
YB. Nekhamanurak
,
P. Patanathabutr
,
N. Hongsriphan
- the Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Thailand
Abstract
The goal of this work is to modify surface of calcium carbonate nanoparticles with silica (CaCO<sub>3</sub>@SiO<sub>2</sub>) via sol-gel process, and to investigate the influence of CaCO<sub>3</sub>@SiO<sub>2</sub> on mechanical properties and fracture behavior of poly(lactic acid) nanocomposite. Modified CaCO3@SiO2 nanoparticles were prepared with different Si:Ca ratios. It is found that the Si/Ca wt% was increased with respect to the Si:Ca mole ratio used in the reaction. Incorporating CaCO<sub>3</sub>@SiO<sub>2</sub> of 5 wt% in creased elastic modulus, %elongation at break and notched impact strength of PLA nanocomposites. These properties of hydrophilic-modified CaCO<sub>3</sub>-poly(lactic acid) nanocomposite was increased with respect to the increasing of SiO<sub>2</sub> con tent on the surface of CaCO3 nanoparticles. This implies that better compatibility between PLA matrix and nano-fillers was achieved after modification surface of CaCO<sub>3</sub> with SiO<sub>2</sub> layers.
Keywords
- Nanocomposite
- poly(lactic acid)
- calcium carbonate nanoparticle
- silica
- sol-gel process
How to Cite
YB. Nekhamanurak, P. Patanathabutr, and N. Hongsriphan, "Mechanical Properties of Hydrophilicity Modified CaCO<sub>3</sub>-Poly (Lactic Acid) Nanocomposite," International Journal of Applied Physics and Mathematics, vol. 2, no. 2, pp. 98-103, 2012. https://doi.org/ 10.7763/IJAPM.2012.V2.62
Copyright & License
Copyright © 2012 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).