Volume 2 Number 2 (Mar. 2012)
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IJAPM 2012 Vol.2(2): 098-103 ISSN:2010-362X
DOI: 10.7763/IJAPM.2012.V2.62

Mechanical Properties of Hydrophilicity Modified CaCO3-Poly (Lactic Acid) Nanocomposite

YB. Nekhamanurak, P. Patanathabutr, and N. Hongsriphan

Abstract—The goal of this work is to modify surface of calcium carbonate nanoparticles with silica (CaCO3@SiO2) via sol-gel process, and to investigate the influence of CaCO3@SiO2 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 CaCO3@SiO2 of 5 wt% in creased elastic modulus, %elongation at break and notched impact strength of PLA nanocomposites. These properties of hydrophilic-modified CaCO3-poly(lactic acid) nanocomposite was increased with respect to the increasing of SiO2 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 CaCO3 with SiO2 layers.

Index Terms—Nanocomposite, poly(lactic acid), calcium carbonate nanoparticle, silica, sol-gel process.

B. Nekhamanurak is with the Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Thailand (e-mail: bawornkit@windowslive.com).
P. Patanathabutr is with the Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Thailand (e-mail: pajaera@su.ac.th).
N. Hongsriphan is with the Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Thailand (e-mail: nattakar@su.ac.th).

 

Cite: B. Nekhamanurak, P. Patanathabutr, and N. Hongsriphan, "Mechanical Properties of Hydrophilicity Modified CaCO3-Poly (Lactic Acid) Nanocomposite," International Journal of Applied Physics and Mathematics  vol. 2, no. 2, pp. 098-103, 2012.

General Information

ISSN: 2010-362X
Frequency: Bimonthly (2011-2014); Quarterly (Since 2015)
DOI: 10.17706/IJAPM
Editor-in-Chief: Prof. Haydar Akca
Abstracting/ Indexing: Index Copernicus, EI (INSPEC, IET), Chemical Abstracts Services (CAS), Electronic Journals Library, Engineering & Technology Digital Library, Nanowerk Database, Google Scholar and ProQuest
E-mail: ijapm@iap.org
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