Abstract

Polylactic acid (PLA) is a biodegradable polymer that can be substituted in usage of conventional non-degradable polymers. The strength of the PLA can be enhanced by incorporating clay. In this research, PLA was mixed with organoclay (Cloisite 30B, C30B) using Haake internal mixer. The X-ray diffraction (XRD) patterns and transmission electron microscopy (TEM) images showed that PLA chains were intercalated into the layers of the organoclay. The thermal properties showed a slight decrease in the glass transition temperature of PLA, and similar trend was observed in Tan delta. The nanocomposites exhibited higher storage modulus than the matrix. The PLA/C30B nanocomposites exhibited increment in modulus of PLA by using organoclay, in which it is suitable to replace non-degradable materials.

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