Abstract

In this work, the hybrid films were fabricated by utilized the polylactic acid (PLA) as a matrix embedded by microcrystalline cellulose (MCC) extracted from bagasse by 10% (w/v) sodium hydroxide (NaOH). To enhance the dielectric property of the hybrid films, the polarity of MCC was then modified by surface coating with 1% by mole of silver. The physical and chemical properties of MCC and nanosilver coated microcrystalline cellulose (Ag-MCC) were characterized by FTIR, XRD, SEM and TGA. PLA with various ratios of MCC or Ag-MCC (1-5phr) were prepared as hybrid films by solution casting method. The dielectric properties of PLA, PLA/MCC and PLA/Ag-MCC hybrid films were measured at different frequencies ranging from 1kHz - 1MHz. The results exhibited that the PLA hybrid film with 3 phr of Ag-MCC offers the promising dielectric permittivity at 30 and the loss tangent about 0.08.

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