Evaluation of Cross-Linked Chitosan as Filler on Mechanical Properties of Chitosan-Based Bio-Composites

The cross-linked chitosan (XCs) was applied as a filler for chitosan (Cs) matrix. The composites film was prepared by solution casting at 0 to 12 wt/v% content of XCs filler and characterized under tensile analysis. The tensile strength (TS) and Young Modulus (YM) increased lineraly with the content of XCs filler (2 to 8 wt/v%). Contrarily, tensile strain (EB) and toughness (K) reduced corresponding to similar content of filler. The Fourier Transform Infra-Red (FTIR) and Field Emission Scanning Electron Microscope (FESEM) analysis proved, such results were influenced by the inter hydrogen bonds and electrostatic interactions between Cs and XCs.