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The production and properties of polylactide (PLA) nanocomposites filled with graphene oxide (XGO)

A. BUASRI1,2,* , J. PATWIWATTANASIRI1, N. ADISAISAKUNCHAI1, A. KEMNGEN1, V. LORYUENYONG1,2

Affiliation

  1. Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand
  2. National Center of Excellence for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University, Bangkok 10330, Thailand

Abstract

Graphene and its derivatives are today one of the latest and hottest research topics. This is due to their exceptional mechanical, electrical, thermal and optical properties, high surface area-to-volume ratio, and unique crystal structure. Therefore, many applications, for instance, electronic devices, composites and nanomedicine, are expected. This research aims to study the mechanical and thermal properties of poly(lactic acid)/graphene oxide (PLA/XGO) nanocomposites. The polymer nanocomposites were successfully prepared by solution processing in conjunction with compression molding at various contents of XGO from 0-1.0 wt%. The structure, mechanical properties and thermal stability of the composite materials have been investigated by the X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), mechanical test, and thermogravimetric analysis. The results obtained from those different studies revealed that PLA and XGO could mix with each other homogeneously. A uniform dispersion of filler in the matrix existed when the XGO content was less than 0.7 wt%. Mechanical properties of biopolymer were greatly improved by the addition of a small amount of XGO (0.5 wt%). The nanocomposites have potential application as packing materials..

Keywords

Poly(lactic acid), Graphene oxide, Nanocomposites, Biomaterials.

Citation

A. BUASRI, J. PATWIWATTANASIRI, N. ADISAISAKUNCHAI, A. KEMNGEN, V. LORYUENYONG, The production and properties of polylactide (PLA) nanocomposites filled with graphene oxide (XGO), Optoelectronics and Advanced Materials - Rapid Communications, 9, 3-4, March-April 2015, pp.507-510 (2015).

Submitted at: Feb. 18, 2015

Accepted at: March 19, 2015