Rheological and Thermal Properties of PLA Nano-composite Modified by Reactive Extrusion 


Vol. 15,  No. 2, pp. 102-108, Jun.  2009


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  Abstract

In this study, poly(lactic acid) (PLA) was modified by reactive extrusion with a functional monomer GMA(glycidyl methacrylate), MMT(montmorillonite), and initiator to enhance the melt strength. Each modified PLA was prepared with different amounts of GMA and MMT and was characterized by measuring thennal- and melt-viscoelastic properties. The degree of dispersion of MMT was measured by X-ray diffraction(XRD) and transmission electron microscopy(TEM). The glass transition temperature(Tg) of modified PLA-GMA-MMT nanocomposite decreased with increasing GMA content, but was a little affected by the amount of MMT. Surface analysis showed that the nanocomposite became more intercalated than exfoliated as the amount of MMT increases. The complex viscosity and storage modulus ofthe nano-composite were greatly increased by addition of MMT.

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  Cite this article

[IEEE Style]

K. GS, K. BS, S. BY, "Rheological and Thermal Properties of PLA Nano-composite Modified by Reactive Extrusion," Clean Technology, vol. 15, no. 2, pp. 102-108, 2009. DOI: .

[ACM Style]

Kang GS, Kim BS, and Shin BY. 2009. Rheological and Thermal Properties of PLA Nano-composite Modified by Reactive Extrusion. Clean Technology, 15, 2, (2009), 102-108. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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