Poly-capro-lactone/poly-lactic acid/cellulose nano crystal three-component nanocomposites: Manufacturing, mechanical, dynamic-mechanical and morphological investigation

The aim of this study was to investigate the mechanical, dynamic-mechanical and morphological properties of poly-capro-lactone/poly-lactic acid/cellulose nano crystal three-component nanocomposites. For this purpose, the nanocomposites were manufactured using casting solution method. Then, mechanical tests including tensile strength, tensile modulus and elongation at break and dynamic-mechanical test including storage modulus, loss modulus and loss factor were performed on nanocomposites. Field emission scanning electron microscopy was used to study the morphology of the nanocomposites and infrared spectroscopy was used to investigate possible reactions. The result showed that with increasing cellulose nano crystal and poly-lactic acid, the mechanical and dynamic-mechanical properties were improved. Field emission scanning electron microscopy confirmed the presence of nanoparticles in the nanocomposites and the results of infrared spectroscopy confirmed the hydrogen reaction between the hydroxyl groups of cellulose nano crystal with the carbonyl groups of poly-capro-lactone and poly-lactic acid, as well as the hydroxyl groups and carbonyl groups of both polymers with each other.