Preparation and Mechanical Properties of Cassave Residue/Polybutylene Succinate Bio-composites
Cassava residue was one of biomass wastes and had excellent biodegradation,its main components were starches and celluloses.It can be blended with other biodegradable polymers to prepare the novel composites.In this study,cassava residue was blended with poly butylene succinate in the internal mixer to produce the biodegradable composite.Furthermore,the effect of cassava residue content on mechanical properties were studied such as the tensile,flexural,and impact properties.The tensile strength,tensile modulus,elongation at break,and flexural strength of the composites were lower than those of pure PBS,and decreased gradually as the cassava residue loading increased.The flexural strength of the composites reduced gradually with the increase in cassava residue loading,which was higher than that of pure PBS when the cassava residue loading was 10 wt%.Compared with pure PBS,the composites exhibited lower impact strength; the impact strength of the composites increased at first and then decreased as the cassava residue loading increased,and arrived a maximum when the cassava residue loading was 10 wt%.